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All rights reserved t o Civil Engineering Department Ports, Customs & Free Zone Corporation, Dubai. N o parts o f this publication may b e reproduced, stored in any retrieval system, or transmitted in any form o r by any m eans, electronic, mechanical, photocopying, recording or otherwise, without the prior consent of the copyright owner.
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URBAN PLANNING & MEP SERVICES REGULATIONS & TECHNICAL GUIDELINES
Ports, Customs & Free Zone Corporation, Dubai United Arab Emirates
Urban Planning & MEP Services Regulations & Technical Guidelines First Edition-2007
P.O. Box 17000, Ports, Customs & Free Zone Corporation, Dubai Tel.: 00971 4 8819444 E-mail:
[email protected] http://ced.dubaitrade.ae United Arab Emirates
This edition was issued in May 2007 Jebel Ali, Dubai, United Arab Emirates All rights reserved to Civil Engineering Department, Ports, Customs & Free Zone Corporation, Dubai. No parts of this publication may be reproduced, stored in any retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior consent of the copyright owner.
URBAN PLANNING & MEP SERVICES REGULATIONS & TECHNICAL GUIDELINES First Edition-2007
Ports, Customs & Free Zone Corporation, Dubai United Arab Emirates
Acknowledgement
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Acknowledgement
The
publication of this book could not have been possible
but for the ungrudging efforts put in by a large number of individuals working in Planning, Services, & GIS / Drawing Office of the Civil Engineering Department. We would like to thank the section managers and their respective teams for their meticulous effort in maintaining the content, structure and quality of the book. We also wish to acknowledge contributions made by many Consultants and Engineers; and Finally Local Regulations, DEWA, DM, RTA, Etisalat/du, PCFC EHS and International Standards whose publications and articles are frequently used. Our thanks go out to all those who contributed, whether through their comments, feedback, edits, or suggestions. As there is always room for improvement, Civil Engineering Department welcomes comments on this Book, and will consider all that are received. Your comments will continue the development of this book leading to its ultimate acceptance. As always it has been a great joint effort.
Nazek Al Sabbagh Chief Civil Engineering Officer Ports, Customs & Free Zone Corporation – CED
Table of Contents
Page
CHAPTER 1: GENERAL Section 1: Introduction----------------------------------------------------------- 13 Section 2: Scope------------------------------------------------------------------- 14 Section 3: Definitions------------------------------------------------------------- 15 Section 4: Powers of the Authority---------------------------------------------- 16 Section 5: Responsibilities and Disputes--------------------------------------- 17 CHAPTER 2: URBAN PLANNING SERVICES Section 6: General---------------------------------------------------------------- 19 Section 7: Land-Use Category-------------------------------------------------- 20 7.1 Industrial Land-Use------------------------------------------------------- 20 7.1.1 Principle- --------------------------------------------------------- 20 7.1.2 Standards--------------------------------------------------------- 20 7.2 Offices/ High Tech Research and Development (R&D)--------------- 21 7.2.1 Principle ---------------------------------------------------------- 21 7.2.2 Standards -------------------------------------------------------- 21 7.3 Residential --------------------------------------------------------------- 22 7.3.1 Principle ---------------------------------------------------------- 22 7.3.2 Standards--------------------------------------------------------- 22 7.4 Site Planning Requirements---------------------------------------------- 25 7.5 Plot Area Requirements-------------------------------------------------- 26 7.6 Building or Development Control Factors------------------------------ 26 7.7 Building Heights --------------------------------------------------------- 26 7.8 Building Setbacks-------------------------------------------------------- 29 7.9 External Building Circulation Elements : Route Access to Site------- 29 7.10 Route Access to the Building or the Structure------------------------- 30 7.11 Street Parking Requirements-------------------------------------------- 30 7.11.1 General Requirements------------------------------------------ 30 7.11.2 Parking Lot Design---------------------------------------------- 32 7.11.3 Parking Provisions----------------------------------------------- 33 7.11.4 Parking for People with Special Needs----------------------- 37 7.11.5 Loading and Unloading Bays---------------------------------- 38 7.11.6 Turning Radius (Maneuvering Spaces)------------------------ 39 Section 8: Circulation Category-------------------------------------------- 41 8.1 Right of Way (ROW)----------------------------------------------------- 41 8.2 Local Roads--------------------------------------------------------------- 41 8.2.1 Lane Width------------------------------------------------------- 41 8.2.2 Pedestrian Facilities---------------------------------------------- 42 8.2.3 Turning Areas---------------------------------------------------- 42 8.2.4 Typical cross-sectional elements relating to local roads------ 43
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Table of Contents 8.3 Collectors- ---------------------------------------------------------------- 8.3.1 Lane Width------------------------------------------------------- 8.3.2 Pedestrian Facilities---------------------------------------------- 8.3.3 Typical cross-sectional elements relating to Collectors------- 8.4 Arterial Roads------------------------------------------------------------ 8.4.1 Lane Width------------------------------------------------------- 8.4.2 Pedestrian Facilities---------------------------------------------- 8.4.3 Typical cross-sectional elements relating to Arterials--------- 8.5 Expressways & Freeways------------------------------------------------
43 43 43 43 43 43 43 44 44
8.6 Intersections--------------------------------------------------------------- 44 8.6.1 Intersection Spacing--------------------------------------------- 45 8.6.2 Corner Radii------------------------------------------------------ 45 8.7 Other Road Facilities----------------------------------------------------- 8.7.1 Pedestrian Facilities---------------------------------------------- Sidewalks-------------------------------------------------------- Crossings--------------------------------------------------------- 8.7.2 Cycle Facilities--------------------------------------------------- 8.7.3 Public Transport-------------------------------------------------- 8.7.4 Parking Facilities------------------------------------------------- 8.7.5 Gate Standards--------------------------------------------------
46 46 46 46 47 48 49 50
Section 9: Public Facilities Category---------------------------------------- 52 9.1 Educational Facilities- --------------------------------------------------- 52 9.1.1 Governmental Schools------------------------------------------ 52 9.1.2 Private Schools--------------------------------------------------- 52 1-1 Kindergartens-------------------------------------------- 52 1-2 Primary Schools------------------------------------------ 53 1-3 Intermediate Schools------------------------------------ 53 1-4 Secondary Schools-------------------------------------- 54 9.2 Health Facilities----------------------------------------------------------- 54 9.2.1 Government Sector---------------------------------------------- 54 9.2.2 Private Sector----------------------------------------------------- 54 1-1 Private General Clinic----------------------------------- 55 1-2 Private Specialty Clinic- -------------------------------- 55 1-3 Private Polyclinic----------------------------------------- 56 1-4 Private Hospital------------------------------------------ 56 9.3 Commercial Facilities---------------------------------------------------- 57 9.4 Police Facilities----------------------------------------------------------- 57 9.4.1 Police Stations---------------------------------------------------- 58 9.4.2 Police Posts------------------------------------------------------- 58 9.5 Civil Defense Facilities--------------------------------------------------- 59 9.5.1 Civil Defense Centers-------------------------------------------- 59
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Table of Contents 9.5.2 Civil Defense Points---------------------------------------------- 59 9.6 Post Facilities- ------------------------------------------------------------ 60 9.6.1 Post Offices------------------------------------------------------- 60 9.6.2 Post Shelters------------------------------------------------------ 61 9.7 Recreational Facilities---------------------------------------------------- 61 9.7.1 Community Parks- ----------------------------------------------- 61 9.7.2 Playgrounds------------------------------------------------------ 62
Section 10: General Subdivision Guidelines---------------------------------- 10.1 The Plot Level------------------------------------------------------------ 10.2 The Block Level---------------------------------------------------------- 10.3 Roads Standards-------------------------------------------------------- 10.4 Restricted Local Roads Connections----------------------------------
63 63 63 64 64
Section 11: Planning Appendices------------------------------------------- 65 11.1 Appendix (1) - One way, one lane local street with parallel parking - residential / commercial (Row 18.3 m - 60’)- ---------- 65 11.2 Appendix (2) - Two way, two lane local street with parallel parking - residential / commercial (Row 18.3 m - 60’)- ---------- 66 11.3 Appendix (3) - Two way, two lane local street with parallel parking – Industrial (Row 18.3 m - 60’)----------------------------- 67 11.4 Appendix (4) - Two ways, four lane collector with parallel parking – Residential/Commercial (38 m - 125’)------------------ 68 11.5 Appendix (5) - Two ways, four lane collector with parallel parking – Industrial (38 m - 125’)----------------------------------- 69 11.6 Appendix (6) - Two ways, four lane secondary arterial with service road and parallel parking-Residential/Commercial (45.7 m - 150’) -------------------------------------------------------- 70 11.7 Appendix (7) - Two ways, six lane secondary arterial with service road and angled parking-Residential/Commercial (61 m - 200’)----------------------------------------------------------- ` 71 11.8 Appendix (8) - Two ways, four lane secondary arterial – Industrial (45.7 m – 150’)-------------------------------------------- 72 11.9 Appendix (9) - Two ways, four lane primary arterial with service road and angled parking-Residential/Commercial (67 m - 220’)----------------------------------------------------------- 73
CHAPTER 3: MEP SERVICES Section 12: General--------------------------------------------------------- 75 Section 13: Service Conditions--------------------------------------------- 78 Section 14: Referenced Standards & Regulations ------------------------- 79 Section 15: Service Regulations -------------------------------------------- 80
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Table of Contents 15.1 EHS- --------------------------------------------------------------------- 15.2 HVAC-------------------------------------------------------------------- 15.3 Plumbing & Drainage-------------------------------------------------- 15.4 Electrical----------------------------------------------------------------- 15.5 Water-------------------------------------------------------------------- 15.6 Telecommunications - --------------------------------------------------
80 80 80 81 85 90
Section 16: Technical Guidelines - --------------------------------------------- 91 16.1 EHS- --------------------------------------------------------------------- 91 16.2 HVAC-------------------------------------------------------------------- 91 16.3 Plumbing & Drainage - ------------------------------------------------ 91 16.4 Electrical----------------------------------------------------------------- 92 16.5 Water-------------------------------------------------------------------- 110 16.6 Telecommunications - -------------------------------------------------- 113 Section 17: Project Completion Procedures ---------------------------------- 114 Section 18: MEP Appendices ---------------------------------------------------- 116 18.1 Request For Power Supply (‘P’ Form) -------------------------------- 116 18.2 Lighting Illuminance Levels--------------------------------------------- 119 18.3 General PCFC’s NOC Conditions - ---------------------------------- 120 18.4 Electrical Completion & Inspection Certificates (Appendix 6 of IEE Regulations)------------------------------------------------------------- 121 18.5 DEWA - Application For Supply of Electricity & Water------------- 125 18.6 Enforcement & Extension of DEWA’s Wiring Regulations- --------- 130
CHAPTER 4: GIS & DRAWING OFFICE SERVICES------------------------- 131 Section 19: General--------------------------------------------------------------- 132 Section 20: Coordinate System Standards (Projection System)------------ 133 Section 21: Data Exchange------------------------------------------------------ 134 21.1 Data Exchange Formats------------------------------------------------ 134 21.2 Data Exchange Mechanisms------------------------------------------ 134 Section 22: Web Applications - ------------------------------------------------- 135 22.1 Map Central------------------------------------------------------------- 135 22.2 PCFC Orthophotos- ---------------------------------------------------- 135 22.3 JAFZA EMap (External)- ----------------------------------------------- 135 22.4 JAFZA EMap (Internal)------------------------------------------------- 135 Section 23: Lease Drawings----------------------------------------------------- 137 Section 24: NOC Drawings Standards----------------------------------------- 138 Section 25: Survey Base Stations----------------------------------------------- 139 Section 26: Global Positioning System (GPS)--------------------------------- 140
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Table of Contents Section 27: Digital Data Delivery Standards---------------------------------- 141 27.1 CED Projects / Review------------------------------------------------- 141 27.2 General Requirements-------------------------------------------------- 141 27.3 Preliminary Study------------------------------------------------------- 141 27.4 Preliminary Design- ---------------------------------------------------- 142 27.5 Final Design------------------------------------------------------------- 142 27.6 Tender Documents------------------------------------------------------ 142 27.7 As-Built Drawings------------------------------------------------------- 142 27.8 Operations & Maintenance Manual---------------------------------- 144 Section 28: GIS Drawing Office Appendices---------------------------------- 146 28.1 Appendix A: Document Transmittal Form----------------------------- 146 28.2 Appendix B: Sample Lease Drawings--------------------------------- 147 28.3 Appendix C: Sample NOC Documents------------------------------- 148 28.4 Appendix D: GPS Rover Details--------------------------------------- 151
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CHAPTER 1: GENERAL
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Chapter 1: Section 1: Introduction
These
regulations are intended to provide minimum services design requirements for all types of development, such as residential, commercial, recreational, industrial and institutional development. Dubai has a natural environment of outstanding visual quality that contributes to a high quality of life and to property values. These standards exist to ensure buildings integrate with the natural environment, to protect and enhance land and property, to maintain the values created in the community, and to promote the health, safety and general welfare of the community. Building Services in particular have a pronounced effect on the environment and should be designed so as to minimize adverse effects and promote people and environment friendly systems. The regulations contained in this document shall be considered to be the minimum requirements. Developments shall also comply with all relevant legislative requirements of Dubai Authority Standards and Environment, Health and Safety (EHS), of the Ports, Customs and Free Zone Corporation. However, in case of any contradictions, these conflicting clauses should be brought to the attention of the Department for a final determination. Ports, Customs and Free Zone Corporation reserves the right to change any of these regulations and it shall be the duty of consultants, contractors & developers etc, to ensure that they possess the latest updates.
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Chapter 1: Section 2 : SCOPE
The
scope of this Urban Planning & MEP Services Regulations & Technical Guidelines is to describe the procedures and formalities, as far as Planning and Services are concerned, that should be adhered to by the developers who intend to build new facilities /infrastructures or to modify existing facilities/infrastructures within the areas that fall within the Civil Engineering Department Jurisdiction. The book also addresses the services that the CED provides to its customers and other Business Units in the form of Planning, Drawing Office related services and the provision of GIS related maps, and documents. These “ URBAN PLANNING & MEP SERVICES REGULATIONS AND TECHNICAL GUIDELINES” should be read in conjunction with other CED regulations namely, “BUILDING REGULATIONS & DESIGN GUIDELINES”, “MARINAS AND SMALL CRAFT HARBOUR REGULATIONS & DESIGN GUIDELINES”, and “CONSTRUCTION MATERIALS AND QUALITY CONTROL GUIDELINES”. In addition, EHS Guidelines shall be followed for Environment, Health & Safety, Fire protection and Drainage Services. Refer to the website: http://www.ehss.ae for further details.
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Chapter 1: Section 3 : DEFINITIONS
The “Authority” shall mean the Civil Engineering Department of the Ports, Customs and Free Zone Corporation, Jebel Ali.
The “Developer” shall mean the lessee or his authorized Agent who submits an application to the “Authority” on behalf of the lessee or owner of the plot of land.
The “Project” means the construction of a permanent building or any other permanent or temporary structure on a leased property including any modifications or installations in existing facilities.
“Permanent building” means a building designed and constructed with reinforced concrete, or steel with block or metal cladding or other durable material.
“Temporary Building” means a building used as a site office or to house construction equipment during the construction period.
“The Consultant” means a registered Engineer with CED holding a valid Consulting Engineers’ license from the Dubai Economic Department, acting under the guidelines of “REGULATING THE PRACTICE OF ENGINEERING CONSULTANCY PROFESSION” issued by the DM Legal Affairs Department.
“Regulations” mean these and other Regulations and or Guidelines issued by the “Authority”.
The “Contractor” means a registered Contractor holding a valid Contracting license from the Dubai Economic Department and registered with CED.
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Chapter 1: Section 4 : POWERS OF THE AUTHORITY 1)
2)
16
At the discretion of the Authority the BUILDING PERMIT may be cancelled or suspended if: 1)
Work was carried out in contravention of the conditions of the BUILDING PERMIT or of any regulations issued by the Authority.
2)
It is subsequently revealed that the BUILDING PERMIT was issued on the basis of erroneous information supplied by the developer or his agent.
BUILDING PERMITS will not be withheld unreasonably, but the Authority shall have the discretionary power, when issuing a BUILDING PERMIT, to attach such special conditions thereto as related to all or any of the following matters: 1)
Filling or excavation within the plot.
2)
Construction of boundary walls or fences.
3)
Construction of the external appearance of the building, in relation to fitness for its intended purpose and location.
4)
Disposal of soil, waste and rain water.
5)
Health and safety of personnel and environmental conditions of the workplace and surroundings.
6)
The engineering standards to which any process installation is constructed.
3)
The Authority is empowered to change, amend, replace and/ or update the regulations without notice. It is the developer’s responsibility to obtain updated regulations and ensure compliance.
4)
It is the responsibility of the developer to apply the up-todate regulations, CED Notices, etc. that may supersede those mentioned in these regulations.
5)
The Authority reserves the right to reject the appointment of consultants or contractors for particular jobs if they are not deemed competent enough to fulfill the related responsibilities.
6)
The Authority reserves the right to suspend a consultant or a contractor for non compliance with the regulations.
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Chapter 1: Section 5 : RESPONSIBILITIES AND DISPUTES 1)
Neither the checking of the drawings, nor the checking of the calculations, nor inspection of the work during the progress of construction, shall be construed in any way to impose responsibility and/or liability on the Authority or their agents. The developer and his agents shall remain entirely responsible for all errors in the design and execution of the project and for the stability and safety of construction during the progress of the works and after completion.
2)
All complaints and disputes concerning BUILDING PERMITS and the erection of buildings shall be referred to the Authority. Any financial disputes shall be referred to Dubai Courts
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CHAPTER 2 : URBAN PLANNING SERVICES
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Chapter 2: Section 6 : GENERAL
This chapter covers overall planning parameters governing the development process. While it shares a few details with the “Building Regulations and Design Guidelines”, it is more concerned with regulations related to the big picture and general rules for development. Part of it is dedicated to roads and circulation aspects of development and some useful information is reproduced from the current information of the Road and Transport Authority (RTA), as it is also applicable within the areas under CED jurisdiction. Developers are advised to check with RTA for the latest editions of these regulations at the time of development.
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Chapter 2: Section 7 : LAND-USE CATEGORY
The land-uses of a zone consist of three main categories:
a) Industrial b) Offices/High Tech Research & Development (R&D) c) Residential
7.1
Industrial Land-Use
7.1.1:
Principle
The Creation of a zone for the development of a range of industrial uses, including manufacturing and storage uses which are to be grouped based on their intensity into sub zones.
7.1.2: Standards •
Permitted Uses & Site Development:
Uses permitted in the overall industrial zone are to be divided into one of four sub-zones, depending on the intensity of the use. The following table provides guidelines which determine the sub zone in which the use is to be placed.
Zoning Designation
W
I-1
I-2
I-3
Warehousing & storage
Light Industry
Medium Industry
Heavy Industry
Area size (ha)
>1
>0.25<1
>1<10
>10
Process production (tons/day)
0
<10
>10<100
>100
<35
<200
<100
<50
0
<0.01
>0.01<10
>10
Industry Characteristics
Employees (persons/ha) GAS (m /day) 3
Electricity (megawatts)
20
<0.01
<0.001
>0.001<1.0
>1.0
Water (m3/day)
<1
<10
<100
>100
Waste water (m3/day)
<1
<10
<100
>100
Solid waste (tons/day)
<1
<1
<100
>100
•
Property Development Standards:
The following property development standards shall apply, except as otherwise approved by JAFZA:
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Chapter 2: Section 7 : LAND-USE CATEGORY Zoning Designation
W
I-1
I-2
I-3
Min plot area
1 ha
0.25ha
1 ha
10 ha
Max plot area
N/A
1ha
10 ha
N/A
Min plot width
30m
25m
50m
200m
Max plot coverage
60%
60%
60%
60%
Max building height
16m
16m
45m
45m
Min setback / boundaries
5.5m
5.5m
5.5m
5.5m
1%
1%
1%
1%
Landscaped area
Specific regulations are to be applied to the manufacture, use, and storage of hazardous materials. No specific zone is to be created to house these uses; however, they can be located in any zone, provided that site development regulations, performance standards, and environmental requirements regarding hazardous materials are followed.
7.2
Offices/ High Tech Research & Development (R&D)
This land use category provides land for the development of administrative, professional and business offices, and high tech R&D facilities.
7.2.1: Principle
The creation of a zone which permits the development of administrative, professional and business offices to support the industrial activities and High Tech R&D facilities. These uses shall have minimal cargo loading and unloading requirements, minimal environmental and risk impacts, and have a high visual quality.
7.2.2: Standards
Permitted uses: 1)
Offices
2)
Commercial service businesses oriented towards the needs of businesses and their employees.
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Chapter 2: Section 7 : LAND-USE CATEGORY
3)
Financial service businesses
4)
Printing and reproduction
5)
Restaurants
6)
Research and development activities including research or developmental laboratories, research assembly, testing and repair of components, equipment or systems, and compatible light manufacturing.
Site development standards: Min plot area
5,000 m2
Max plot area
4 ha
Max plot coverage
60%
Min plot width
25 m
Max height
vary
Min setback / boundaries Landscaped area Location standards
5.5 m 5% along with minor arterial streets
7.3
Residential
The residential land-use category includes housing for employees. It also includes supporting commercial and recreational uses such as canteens and sports fields.
7.3.1: Principle
Provision of cost efficient housing which supplies the basic necessities for living in a pleasant environment for unaccompanied personnel employed. This is in keeping with the goals and objectives of the master plan for housing.
7.3.2: Standards
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General:
•
Separate housing areas will be provided for male and female employees: 80 % male 20% female
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Chapter 2: Section 7 : LAND-USE CATEGORY •
Housing quarters will be four storeys, without elevators, appropriate accommodations will be provided for seniors, juniors, and laborer personnel grades.
•
Housing quarters will be centrally located within areas bounded by major arterials to minimize travel distances for employees.
•
Personal vehicles parking will be provided for senior grade housing only. Motor vehicles access and parking will be provided for buses and service and emergency vehicles. Appropriate provisions will be made for pedestrian and bicycle access.
•
Employee accommodations, as an accessory use, are not permitted within lease plots of less than 5 ha.
•
•
On lease plots of 5 ha or more, labor accommodations are permitted as an accessory use. Such accommodations must be for the exclusive use of the leaseholder’s employees. Where possible, housing areas are to be collocated with areas reserved for storm water detention, providing additional land for open sports fields.
Permitted uses: Note: all uses are to be exclusive to the housing area residents • Single sex housing for unaccompanied personnel employed. • Administration office. • Canteens/ restaurants. • Mosques. • Grocery/shopette. • Laundry facilities. • Isolation block for sick residents. • Indoor and outdoor recreational facilities.
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Chapter 2: Section 7 : LAND-USE CATEGORY Site development standards: Min plot area
1 ha
Max plot area
22.5 ha
Min plot width
50 m
Height
vary
Min gross site area
15 m2/resident
Max population
15,000 residents/housing area
Location standards
along with minor arterial streets, centrally located within areas of employment. Max service radius of approx 1500 meters or less; effective service area of approx. 600 ha.
Housing area support facilities:
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Administrative offices
one/housing area
Canteens
one/1000 persons
Mosques
one mosque/housing area
Shopettes
one small grocery/snack shop for every two residential buildings.
Laundry facilities
washers and dryers included in each building.
Isolation blocks
one facility per housing area, one bed/1000 person.
Outdoor recreation
landscaped grounds – tennis and basketball courts, one each / 2000 person – football and cricket fields, one each/7500 residents, passive open space.
Other support facilities, including Juma’a mosques, banks, post offices, clinics, shopping, and sports fields, will be located in community centers.
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Chapter 2: Section 7 : LAND-USE CATEGORY 7.4
Site Planning Requirements
7.4.1
It is forbidden to construct any building on any plot unless it is in accordance with the Affection Plan attached to the Land Use Classification and Regulations issued by the Authority.
7.4.2
The Affection Plan shall define (according to the related Business Unit) the number of floors, their function, external setbacks, the required car parking spaces, access road to the plot, the percentage area permissible for construction, and the floor area ratio.
7.4.3
All building elements of the project are to be within designated property limits.
7.4.4
The site layout shall allow for loading and unloading of vehicles to take place within the plot boundaries. Adequate parking spaces shall be provided within the plot limits and an access route for fire fighting shall be provided for all types of buildings except the private residential villas.
7.4.5
In case the utility services (to a designated property) are to be brought from across the road or public facility area/s, the cost including supply of required material and equipment, making arrangement to supply the services, repair the damage caused during the course and making good to maintain as per original form and finishes, to be borne by the owner of the designated property.
7.4.6
Any earthwork (filling or cutting) shall be restricted to the plot limits.
7.4.7 The developer is encouraged to allocate a part of area within the plot limits for landscaping. No landscaping will be permitted outside the Leased plot. 7.4.8 Access to the plot shall clear all existing services in the service corridor and the cost of any relocations or modifications shall be borne by the developer. 7.4.9
Space for Utility Provision such as electrical substation and other services as required by the concerned Service Providing Authorities shall be provided within the plot limits.
7.4.10 Heavy and light vehicle movement within the related property is to be separated including entry and exit. 7.4.11 Maneuvering of vehicles for parking or loading / unloading for a particular property is to be within property limits.
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Chapter 2: Section 7 : LAND-USE CATEGORY 7.5
Plot Area Requirements
The minimum plot area that is suitable for construction shall be as follows:
7.5.1
Within the central business districts, a minimum plot area of 100 square meter.
7.5.2
In the remaining districts of the Emirate, a minimum plot area of 150 square meter.
7.5.3
The minimum width of the frontage or the main elevation of the plot that overlooks the approach road shall be 10 meter wide.
7.5.4
In case of irregular shaped plots, area of which exceeds the minimum mentioned above, no building permit will be issued unless the plot can accommodate an area of 10 x 10 square meters in order to meet construction requirements.
7.6
Building or Development Control Factors
7.6.1: Building Coverage: All parts of buildings shall be within the plot boundaries and shall not occupy more than:
26
a)
For Industrial type:
In Free Zone districts shall be 60% building coverage.
b)
Residential, commercial and beach type developments:
The maximum plot coverage shall be as per the Design Control Regulations of the related business units.
7.7
Building Heights
The maximum height of the building is to be measured from main ground Finished Floor Level (FFL) till the top of the roof level (according to the system that applies to each Business Unit’s planning requirements).
7.7.1
The Finished Bench Mark Level of all types of buildings shall not be less than 0.15 meter above the approach road edge level, except in Residential Villas which shall not be less than 0.3 meter. This will indicate the Gate Level.
7.7.2
The Ground Finished Floor Level for all types of buildings shall
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Chapter 2: Section 7 : LAND-USE CATEGORY not exceed 1.2 meter above the gate level, except the Residential Villas which shall not exceed 1.5 meter. 7.7.3
The internal clear (net) height of each floor for different building types is the distance from the Finished Floor Level to the Finished Ceiling Level as shown in the following: 1.
Residential Type: Minimum: 2.7 meter. Maximum: 4.2 meter.
2.
Commercial Type: 2.1 Shops and Showrooms:
a) Ground floor :
Minimum : 3 meter. In case of additional half mezzanine floor, it shall be 2.4 meter.
Maximum: 4 meter.
b) Full Mezzanine:
Minimum : 2.6 meter Maximum: 3 meter.
2.2 Commercial Halls and Shopping Malls:
Minimum: 4 meter
Maximum: 6 meter (except aisles & atriums)
2.3 Offices:
Minimum: 2.5 meter.
Maximum: 3 meter.
2.4 Basement Parking Areas:
Minimum: 2.4 meter net, clear from any over hanging services or elements.
Maximum: 3 meter.
3.
Industrial Type:
Factories and Warehouse at one level Minimum: 4 meter. Maximum: 9 meter.
It is possible to go above the maximum figures mentioned above, for certain Industrial Projects, according to their functional requirements which require different height measurements.
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Chapter 2: Section 7 : LAND-USE CATEGORY 4.
Educational Type: Schools, Nurseries and Kindergartens: Minimum: 2.5 meter (from lowest suspended services, elements or ceilings).
Maximum: 4.2 meter (from lowest suspended services, elements or ceilings).
5
Religious Type:
Mosques:
Minimum: 3.6 meter.
Maximum: according to the design and capacity of the mosque.
7.7.4
Some buildings are special cases because of their architectural design such as showrooms, cinemas, schools, commercial centers, industrial installations, etc. These are allowed to go beyond the heights that have been mentioned in clause (7.7.3) of this Section. The Building Permit Committee approves certain specifications and measurements with consideration to activities or the types of the adjacent neighboring buildings.
7.7.5
The parts of buildings and installations that are permitted to exceed the required height are defined as follows:
7.7.6
28
1)
Embellishments (ornamental elements), such as minarets, domes and towers that are embellished in traditional and aesthetic patterns.
2)
Chimneys and smoke stacks, water reservoirs, elevator shafts, staircases, radio and television aerials, wind towers, pergolas, helipads and roof shading devices.
3)
Commercial structures for advertising purposes (only after obtaining permission from the Authority).
Exemption mentioned above, shall comply with the followings: 1)
Any part of the building which is permitted to exceed the height shall not be used as a habitable space.
2)
Height shall not exceed the function of the purpose as decided by the Building Permit Committee, shall be within the permissible limits of the Civil Aviation Regulation, and shall not hamper the adjacent building activities.
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Chapter 2: Section 7 : LAND-USE CATEGORY 7.8
Building Setbacks
Setbacks from all plot boundaries are necessary to allow visual screening from the adjacent developments, to protect the common general amenity and as per planning requirements and guidelines of a Business Unit.
7.8.1
A setback is measured from the edge of the plot limits of adjacent plots and from the edge of the property line to the building.
7.8.2
Setbacks are implemented starting from the ground floor of all building types.
Exemptions of commercial buildings in which a setback is implemented starting from the first floor above the commercial part and starting from the ground floor for the section that is beyond the commercial depth. In this case, if the ground floor is entirely taken over for Commercial use, the setback for the ground floor must be 3 meter from the rear and side line of the adjacent buildings, if their activities are non-commercial type unless instructed differently elsewhere.
7.8.3
No construction works shall be permitted in the setback area for all building types, except for power transformers, pergolas, uncovered parking areas and the projected elements.
7.9
External Building Circulation Elements
7.9.1
Route Access to the Site a)
Provision of points of ingress and egress shall be located to the satisfaction of the Authority.
b)
All parts of the site to which vehicles may have access shall be hard surfaced and drained to the satisfaction of the Authority.
c)
All access locations and curb crossings shall require the approval of the Authority. Public roadways carrying heavy volumes of traffic shall not be used for access unless there is no other practical alternative.
d)
Access routes for fire fighting shall be provided.
e)
The site and all improvements thereon shall be maintained in clean and tidy conditions.
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Chapter 2: Section 7 : LAND-USE CATEGORY 7.10
7.11
Route Access to the Building or the Structure a)
Public entrances and Service entrance shall be located and clearly identified.
b)
Location of the car parking to main entrance shall be clearly identified.
c)
Location of the parking for peole with special needs to the main entrance shall be identified.
d)
Location of the loading area shall be identified.
Street Parking Requirements
7.11.1: General Requirements
30
These street parking requirements are established to provide properly designated parking areas adequate in design, capacity and location to prevent traffic congestion and avoid hazards to the public’s safety and welfare. a)
A parking area shall be provided for vehicles (covered or uncovered) within the plot limits.
b)
In all types of buildings, parking plans for street parking facilities shall be submitted for approval by the Authority prior to the issuance of building permits or certificates of occupancy. All plans shall clearly indicate the proposed development, including parking location, size, design, lighting, landscaping, curb cuts, ingress and egress, traffic rules and signs.
c)
Any deletion or other changes made to a parking lot shall be reviewed and approved by the Authority prior to such work being commenced.
d)
The Authority may request a Traffic Impact Assessment (TIA) for some developments which may have an impact on the traffic generation for the surrounding roads and properties.
e)
In case a plot is situated on two roads; one of them is a main road while the other is a branch, entry to and exit from car parking lots shall be situated only on the branch road or as specified by the Authority.
f)
Location of car parking entry or exit shall be far away from traffic intersections by an adequate distance to be approved by the Building Permits Committee. In case of individual roads forming T Junction, location of car parking
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Chapter 2: Section 7 : LAND-USE CATEGORY entry or exit shall not be opposite such intersections. g)
No parking area shall be counted as both required parking stall and a loading space.
h)
Existence of public car parking lots in the vicinity of any plot shall not exempt such plot from satisfying the car parking requirements as specified in accordance with the provisions of these regulations.
i)
The minimum width of car entry and internal roads shall be: 1) 3 meters of clear un-obstructed road or pavement width are required in case of one way traffic. 2) 6 meters of clear un-obstructed road or pavement width are required in case of two way traffic. 3)
In case of small plots or plots with exceptionally difficult technical circumstances, the competent authority may accept one 3 meter way for both entry and exit of cars after providing traffic signals and a traffic electronic control system and fulfilling all requirements of the Authority.
j)
All parking areas shall be permanently maintained in a safe, clear and good condition free of physical obstructions. All areas including landscaping shall be kept free of trash and weeds.
k)
All parking areas shall be paved and sloped (maximum of 2%), to drain onto a public road.
l)
All parking areas shall be provided with exterior lighting for the surface area. Lighting shall be designed, arranged and installed so as to confine direct rays on to the premises and to direct light away from adjacent structures, premises or streets. Lighting fixtures should be of an energy saving type.
m)
All parking areas are to be screened from surrounding streets with proper landscape elements and the use of minimum 2 meter high planters.
n)
After the building permit is issued, if a conflict occurred with the neighbor’s access, or the traffic flow impact on the adjacent roads, the Authority has the power to modify or relocate the source of the obstructions and all the cost of the modifications or relocations including the repair of damage and maintaining as original form and finish shall be borne by the relevant developer.
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Chapter 2: Section 7 : LAND-USE CATEGORY 7.11.2 Parking Lot Design
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a)
All parking lots and driveways shall be surfaced with asphalted concrete to a minimum thickness of 7 cm over a minimum aggregate base of 15cm or surfaced with Portland cement concrete with a minimum thickness of 12 cm over a 7 cm aggregate base. After review of the probable vehicular traffic and the soils report for the project, additional material may be required to the approval of the Authority.
b)
Concrete wheel stops or a 15 cm high concrete curb shall be installed where parking stalls abut fences, walls or buildings.
c)
Directional arrows and traffic signs shall be required for all parking areas.
d)
All parking lots shall be provided with a durable and welldrained surface. i.
Driveways used exclusively for ingress and egress shall not exceed 10% slope. Parking stalls and vehicle maneuvering areas shall not exceed 2% slope.
ii.
The central driveway may be crowned, with a 1% slope draining to the edges, so that the driveway will be relatively free from water after rain or washing.
iii.
In designing parking spaces, end stalls should be about 0.3 meter wider than usual, especially if bounded by a building or other obstruction.
iv.
Parking spaces under buildings or basement parking, shall account for the presence of columns and adjacent walls, which shall be covered with protective rubber angles, and shall have 2.4 meter minimum clear height.
v.
A mirror for blind corners shall be provided.
vi.
A provision for surveillance camera is recommended for emergency purposes.
vii.
The minimum width of the car parking lots and the driveways inside parking area shall be as follow: 1)
In case of Parallel Parking:
The minimum parking lot dimensions (2.5m x 6m), and the minimum driveway width is 3 meters.
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Chapter 2: Section 7 : LAND-USE CATEGORY 2)
In case of Angle Parking according to single unit situation:
Angle
Stall Width
Actual Stall Length
Inclined Stall Length
Curb/ Inclined Stall Depth
Drive Way Width
Total Width
Road Type
90
2.5
5.5
5.5
2.5
6.0
17.0
Dual Way
60
2.5
5.5
6.0
2.9
3.8
15.8
Single Way
45
2.5
5.5
5.7
3.6
3.3
14.7
Single Way
3)
In case of Angle Parking, according to single unit’s situation, concrete stops or paved islands shall be provided.
7.11.3 Parking Provisions:
Parking provisions are established in order to ensure residents, visitors and staff are provided with parking space, to reduce congestion on adjacent streets, and to minimize spillover parking into adjacent habitable areas. Parking Provision Requirements should be as follows: 1.
Residential Buildings: a) Villas: • Residents: one garage space for each occupancy. • Visitors: where villas are served directly from a road, driveways provide a minimum of one space within the plot boundary of each villa. b) Apartments: • One parking space for each apartment (studio or single bed) or up to 150 square meter floor area. • One and half parking space for each apartment (2 bedrooms) or with area between 150 square meter to 200 square meter. • Two parking spaces for each apartment (3 bedrooms) or over 200 square meter and less than 250 square meter floor area. • Two and half parking spaces for each apartment (4 bedrooms) or with area between 250 square
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Chapter 2: Section 7 : LAND-USE CATEGORY meter and 300 square meter. • Three car parking spaces for each apartment (5 bedrooms / penthouse) or with floor area above 300 square meter. 2.
3
Educational Buildings: a)
1.5 parking spaces for each class.
b)
1.5 parking spaces per 45 square meter of administration area.
c)
One bus parking space per 3 classes.
Religious Buildings: a)
Mosques: •
4
Health Buildings: a)
b)
5
Hospitals: •
Staff: one parking space for each doctor and surgeon, plus two parking spaces for each three others.
•
Outpatients and Visitors: one parking space per 3 beds.
Health Centers and Clinics: •
Staff: one parking space for each doctor and surgeon, plus one parking space for each two others.
•
Outpatients and Visitors: two parking spaces per consulting room.
Commercial Buildings: a)
b)
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As mentioned in “Building Regulations and Design Guidelines, section (16) clause (2)”.
Offices: •
Staff: one parking space per 50 square meter floor area.
•
Visitors: 10% of staff parking provision.
Banks: •
Staff: one parking space for each managerial or executive staff, plus one per four others.
•
Visitors: one parking space per 10 square meter of banking hall.
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Chapter 2: Section 7 : LAND-USE CATEGORY c)
Showrooms: •
One parking space per 70 square meter floor area.
d) General Retail: • One parking space per 25 square meter sales area. e) Trade Centers: • One parking space per 45 square meter floor area. f) Hotels: • One parking space per 5 hotel rooms. • One parking space for each hotel room that contains kitchen or pantry. • One parking space per hotel suite. • One parking space for each flat up to 150 square meter floor area. • Two parking spaces for each flat over 150 square meter floor area. • One parking space per 45 square meter of restaurants area. • One parking space per 20 square meter of meeting rooms or exhibition halls and if conferences are held, space required should be assessed separately at one parking space for each five seats. • One parking space per 45 square meter of offices and shops area. • Staff: one parking space per 2 employees. g) Automobile service gas stations: • One parking space per 50 square meter of the Mini Marts, quick meals and drink service areas. 6
Cultural Buildings: a) Museums and public art galleries: • Staff: one parking space per 2 members normally on duty. • Visitors: one parking space per 30 square meter of public display area.
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Chapter 2: Section 7 : LAND-USE CATEGORY b) Public Libraries: • Staff: one parking space per 2 members normally on duty. • Visitors: one parking space per 10 seats. c) Cinemas and Theaters: • Staff: one parking space per 2 members normally on duty. • Visitors: one parking space per 3 seats. 7
Industrial Buildings: a) Production buildings (factories): • Staff: one parking space per 100 square meter floor area. • Visitors: 10% of staff parking provision. b) Storage buildings (warehouses): • Staff: one parking space per 200 square meter floor area. c) Maneuvering vehicle outside property limit is not permitted.
8
Recreation and Entertainment Buildings: a) Swimming Pools: • Staff: one parking space per 2 members normally on duty. • Visitors: one parking space per 10 square meter of pool area. b) Playing Fields: • Staff: one parking space per 3 members normally on duty. • Players: one parking space for each two players who can use the facility simultaneously. c) Marinas: • Staff: one parking space per 3 members normally on duty. • Boat Users: two parking spaces per 3 users.
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Chapter 2: Section 7 : LAND-USE CATEGORY 9
Miscellaneous: a) Horse Stables: • Riding Stable: one parking space per 2 horse stalls. • Horse Barn: one parking space per 10 stalls. • Horse Race Track and Grandstand: one parking space per 4 seats. b) Green Houses: • Staff: one parking space per 2 employees plus one per company vehicle. • Visitors: one parking space per 25 square meter of sales area.
Requirements for uses not specifically listed herein shall be determined by the Authority, based upon the requirements for comparable uses and upon particular characteristics of the use. Additional parking over and above required herein may be required upon the discretion of the Authority that the specific type of business or use generates a greater demand for parking than the requirement herein.
7.11.4 Parking for People with Spacial Needs:
The minimum width of the car parking lots and the driveways inside the parking area shall be as follows: a) In case of Parallel Parking:
The minimum parking lot dimensions 3.7 m x 6 m and the minimum drive way width 3 meter.
b)
In case of Angle Parking:
An actual stall width of 3.7m for which the curb or inclined stall length should be:
4.30 meters for an angle of 60 degrees 5.20 meters for an angle of 45 degrees
Additional width is needed for opening doors and for maneuvering of wheelchairs, which should be 1.5 meter.
The slope of the ramp shall not exceed 8% and the ramp location may be varied.
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Chapter 2: Section 7 : LAND-USE CATEGORY
Parking spaces shall be properly identified through the use of signage so that the spaces are not used indiscriminately by people who do not need them, and the displayed signs shall bear international symbols for accessibility.
Signs shall be installed at a minimum height of 1.5 meter above floor or ground surface to the bottom of the sign.
Standard size for all accessible signs is 0.3 m x 0.5 m.
A minimum number of parking stalls shall be designated for use by people with special needs, at the rate of 2.0% of total number of car parking stalls or one space per 50 cars, or in accordance with the following schedule:
Total Spaces Required
Special Needs Stalls Required
1 - 50
1
51 - 100
2
101 - 150
3
151 - 200
4
201 - 250
5
These spaces shall be located as close as possible to a main entrance of a building or function, preferably no more than 30 meter away.
7.11.5 Loading and Unloading Bays:
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Off-Street Loading: Every building or structure used for business, trade, or industry that normally requires truck loading or unloading with respect to the use, shall provide space as herein indicated for the loading and unloading of vehicles off the street or public area. Off-street loading and unloading space shall be in addition to and not be considered as meeting a part of the requirement for off-street parking space. Off-Street loading and unloading space shall not be used or designed, intended or constructed to be used in a manner to obstruct or interfere with the free use of any street or adjoining property. The minimum offstreet loading, unloading and maneuvering space required for specific uses shall be as follows:
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Chapter 2: Section 7 : LAND-USE CATEGORY
Retail business and service establishments shall provide one off-street loading, unloading and maneuvering space at least 3 meter wide and 12 meter long with a 4 meter height clearance per building.
Industrial plants shall provide one off-street loading and unloading space per 1800 square meter of floor area. Each loading space shall be a minimum of 4.0 meter wide and 15 meter long plus maneuvering space with a 5 meter height Clearance above FFL.
Trucking terminals shall provide one off-street loading and unloading space per 450 square meters of total floor area used for storage, warehousing, and shipping. Loading and maneuvering space shall be a minimum of 4 meter wide and 20 meter long with 5 meter height clearance.
Any other required off-street loading area shall have the following minimum dimensions, 3.0 meter width, 12 meter length and 4 meter height.
In general off-street loading areas shall not be permitted in front of any principal building.
Loading areas shall be located and designed so the vehicle intended to use them can maneuver safely and conveniently to and from a public right of way and can complete loading and unloading without obstructing or interfering with any public right of way or any parking space.
All off-street loading areas shall be adequately drained and have adequate lighting.
7.11.6 Turning Radius (Maneuvering Spaces):
Minimum Turning Radii for cars shall be as follows: a) Inside Curve: 4.5 meters. b) Outside Curve: 8 meters. c) Road Width: 3.5 meters.
Minimum turning radii for other types of vehicles shall
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Chapter 2: Section 7 : LAND-USE CATEGORY be as per Time Saver “Manual for Building Types – 4th Edition”.
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Chapter 2: Section 8 : CIRCULATION CATEGORY
This section governs provisions for roads and associated facilities and
is mainly a reproduction of the Roads and Transport Authority Guidelines that are also in force within the area under CED’s jurisdiction. As such the information should be used for guidance and exact details should be sought from the RTA’s Regulation in force at the time of application. 8.1
Right of Way (ROW)
It is defined as the road corridor bounded by adjacent plot boundaries. The chosen width of the right of way should permit the design of a well balanced cross section, taking into account the road class, the projected traffic flow, the topography, the surrounding land uses, and any other relevant parameters such as grade separation provision.
The below table summarizes the typical provision of overall right of way width (m) for various road classes. Road Class
Residential
Commercial
Industrial
Local
12 to 24
12 to 24
18
Collector
24 to 38
24 to 38
28 to 38
Secondary Arterial
45 to 60
45
Primary Arterial
67 to 85
67
Expressway Freeway
38 to 76
Determined following consideration of factors relevant to the specific location.
8.2
Local Roads:
They are defined as the lowest class of roads intended for short journeys only. Their primary function is to provide access to adjoining land uses. In residential areas, local streets have a high level of non-motorized activity, caused primarily by the movement of pedestrians and children at play. Traffic generators such as schools, mosques and shopping facilities should be carefully considered in the overall design especially with pedestrian movements. In commercial and industrial areas, the prime function of the local roads is to provide access to premises. The type of vehicle necessary to service the adjacent land-use activity generally determines the scale and layout of the street and its function.
8.2.1: Lane Width: Lane widths on local roads should be as shown in the following
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Chapter 2: Section 8 : CIRCULATION CATEGORY table: Lane width (m) Single-lane roads
4.00
2-lane roads
Residential
3.50
Commercial
3.50
Industrial
3.65
8.2.2 Pedestrian Facilities:
Sidewalks should be provided on both sides of local roads. Minimum sidewalk width should be 1.8 m and is subject to approval from Service Authority regarding access to their existing, or future, underground operations.
8.2.3 Turning Areas: Cul-de-sacs should be provided with an area at the closed end to allow vehicles to turn around and return along the road. The following figure shows a range of typical turning areas, with their dimensions. 20m (30m)
15m 4m
20m Min.
(R R 6 m 10 m )
m ) R610m (R
Circular
10m (20m)
4m (6m)
20m (30m)
6m (10m)
20m (30m)
10m
4m
Square End (with anglde parking)
(15m)
(R R 6 m 10 m )
Square End (minimum)
42
Circular Offset
Hammerhead
Dimension in bracket relates to SU design vehicles
(6m)
20m
6m (10m)
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Chapter 2: Section 8 : CIRCULATION CATEGORY 8.2.4 Typical cross-sectional elements relating to local roads: See Appendices -1, 2 and 3 in Section 11 8.3
Collectors:
Collector roads are defined as roads which provide land access and traffic circulation service within residential, commercial and industrial areas. Collectors generally link local roads with arterials. The function of collectors is to cater for short-distance trips at relatively low speeds, and to provide a means of access to and from the arterial road network.
8.3.1 Lane Width:
It should be provided with lanes which are 3.65 m wide, except in industrial areas, where 3.75 m is provided. Median widths depend on circumstances, but preferred width is 6.0 m
8.3.2 Pedestrian Facilities:
8.3.3
Sidewalks should normally be provided on both sides. A minimum width of 2.0 m applies, but widths of 3.0 m or more are desirable. Typical cross-sectional elements relating to Collectors: See Appendices 4 and 5 in Section 11
8.4
Arterial Roads:
A road used primarily for the movement of through traffic, which also gives access to abutting properties as a secondary function. Access is in general controlled by at-grade intersections (signalized or roundabouts) but grade separated intersections are also used. Arterials normally link collectors with freeways or expressways.
8.4.1 Lane Width:
It should be provided with lanes which are 3.65 m. Median widths depends on circumstances, but normally 6.0 m to 8.0 m. 8.0 to 10 m, on primary arterials, median should be 12.0 m.
8.4.2 Pedestrian Facilities: Sidewalks should normally be provided on both sides of an urban arterial. Preferred sidewalk width for arterial roads (m) is shown
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Chapter 2: Section 8 : CIRCULATION CATEGORY in the following table: Primary Arterial
Secondary Arterial
Desirable
4.3 or more
3.35 or more
Minimum
1.8
1.8
8.4.3 Typical cross-sectional elements relating to Arterials: See Appendices 6, 7, 8 and 9 in Section 11
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8.5
Expressways and Freeways:
Expressways and Freeways represent the highest standard of road provision in Dubai. Express way is defined as a multi-lane, divided road designed to move large volumes of traffic at speed under free flow conditions. It has full control of access, with grade separated intersections, but some access to major frontage uses may be provided by means of service roads connected by free flow ramps. A freeway has absolutely no connections between interchanges. The difference between an expressway and freeway lies primarily in the degree of access control.
Cross-sectional design varies according to RTA plans, therefore, connections and accesses should be submitted to RTA for their revision and approval.
8.6
Intersections:
An intersection is the area where two roads join or cross. This can be achieved at-grade, in which case there are three basic types of intersection, namely major/minor intersections, roundabout and U-turn. Key issues to be addressed in the design of intersection include: -
Visibility.
-
Driver perception
-
Signage and road marking.
-
Traffic control.
-
Geometric implications arising from chosen design vehicle.
-
Safety of pedestrians.
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Chapter 2: Section 8 : CIRCULATION CATEGORY 8.6.1 Intersection Spacing:
The location of main intersections is generally dictated by the geographical position of the roads within the network, and intermediate intersections are usually a function of the surrounding area and its current and future development. Factors which should be taken into account when determining the need for an intersection include:
-
the class of road within the hierarchy
-
the general intersection spacing which applies to such a road class
-
the potential traffic demand for access to/from the main road
-
the length of the alternative route if no intersection is provided
-
the design speed and posted speed of the road
-
the lengths required for any weaving to occur safely
-
decision sight distances
-
the physical dimensions of the intersection itself
It is not possible to apply strict and rigorous standards to the spacing of intersections. The information in the following table should therefore only be used as broad guidance when considering the minimum spacing of intersections. Road class Local Road
Intersection spacing (m) 60
Collector
100
Secondary Arterial
200
Primary Arterial
400
Expressway
1000
Freeway
1500
8.6.2 Corner Radii:
Corners may be of constant radius (simple) or may use a compound curve. Only relevant constant corner radii will be presented due to the highly flexible provision of compound curves. Corner radii
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Chapter 2: Section 8 : CIRCULATION CATEGORY at major/minor intersections are shown in the following table:
8.7
Situation
Corner radius (m)
Local road / Local road
10 (maybe reduced to 7m if vehicles larger than a car occur infrequently)
Local road / Collector
10
All others
15
Other Road Facilities:
8.7.1 Pedestrian Facilities: They are categorized into two parts: -
Sidewalks – those which run generally parallel to a road
-
Crossings – those which cross the road
1-1 Sidewalks:
In areas with high volumes of pedestrian traffic, sidewalks should be provided on both sides of the road. It is recommended that one be provided if the maximum hourly pedestrian demand is likely to exceed 20 persons per hour in a residential area, and 100 persons per hour in a commercial area. The nature of the adjoining land uses has an influence on provision. Design Considerations:
The minimum width of a sidewalk is 1.8 m, although it is subject to agreement from the service authority regarding access to their underground apparatus.
Sidewalks may be constructed of interlocking tiles, asphalt or concrete, and should generally be laid at a cross fall of 2.5% towards the road, so as to facilitate drainage. Marble-like surfaces should generally be avoided; when wet; they can be treacherous for pedestrians. 1-2 Crossings:
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Pedestrian movement is relatively compatible with traffic movement on local streets, but becomes less compatible on roads of higher category in the hierarchy. Therefore, grade separated structures should be provided to facilitate pedestrian crossings on freeways
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Chapter 2: Section 8 : CIRCULATION CATEGORY and expressways. Their locations should be investigated, based on consideration of the pedestrian generation sources, the travel patterns of pedestrian movements, the pedestrian volumes, the classification of road to be crossed and its traffic level, the adjacent land use and the pedestrian accident record. Design Considerations:
Where a structure is to be provided, it must be able to accommodate handicapped pedestrians and those on wheelchairs. Ramps should be provided to a preferred maximum grade of 8%, with an absolute maximum grade of 10% being available for use in different locations. Level landing areas of at least 1.5 m length should be installed so that no individual ramp section is longer than 9.0 m. Handrails should be provided on ramps and on any steps which are also being provided as an alternative shorter route.
The width of the pedestrian crossing itself should generally be 3.0 m, crossings wider than 6.0 m should not normally be provided as shown on the table below:
Design flow (pedestrians / min)
Recommended pedestrian crossing width (m)
Up to 10
3.0 (minimum)
12
3.6
15
4.5
20 and above
6.0 (maximum)
More than 30
Consider grade separation
In order to provide for the safe and convenient movement of ablebodied pedestrians as well as physically challenged persons and those in wheelchairs, dropped curbs should be included at all at-grade pedestrian crossing points.
8.7.2 Cycle Facilities: Locations with heavy cycle traffic may include the following suggestions: -
On curbed roads, consider providing a wider outer lane (4.2 m minimum width). If justified, a separate cycle line
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Chapter 2: Section 8 : CIRCULATION CATEGORY (1.0 m minimum width) may be identified by means of longitudinal road marking.
-
Drainage gullies should be flush with the pavement, aligned at right-angles to the direction of cycle movement, and preferably not in the cycle traveled way.
-
Maintenance of areas used by cycles is important – particularly regular sweeping. Accesses by the relevant machinery should be possible.
Where specific cycle facilities are being considered, reference should be made to the practice in other countries where the level of cycle usage is high and the design standard of cycle facilities is good.
8.7.3 Public Transport :
Buses should generally be enabled to stop without obstructing the flow of traffic. It is therefore normal practice to provide bus bays, the preferred bus bay layout is shown in the following figure: 5.0m
20.0m **
30.0m *
20.0m**
5.0m
10.5m ^^
Upstand curb
Blocked paved pedestrian area
Shelter for waiting passengers
Blocked paved, color differentiated, waiting area for buses
Single bus only, may be reduced to 15m
^^ May be reduced to 6.5 absolute minimum, if no shelter is provided
*
** In difficult circumstances may be reduced to an absolute minimum of 10m
Preferred Bus Bay Layout:
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On secondary arterials and collectors (and on local roads and streets if they are used by buses), it may be acceptable to permit buses to stop by the curb, provided that:
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Chapter 2: Section 8 : CIRCULATION CATEGORY
-
The bus stop area is kept free from parked vehicles.
-
The bus stop is not located close to a major/minor intersection.
-
Parking should be prohibited over a distance of 12 m before and 8 m beyond the bus stop area.
When providing bus stopping points in the vicinity of intersections, the following points should be borne in mind: -
In general, it is preferred to locate bus stops on the exit side of the intersection. A distance of at least 10 m beyond the limit of the intersection would generally be required.
-
If a bus stop is to be provided on the approach side, then it must be positioned sufficiently far in advance that the bus can move off safely and join the relevant traffic lane without undue interference with other vehicles. A minimum distance of 20 m from the end of the layby to the start of any right-turning maneuver or auxiliary lane should generally be adequate.
-
If a bus stop is located on the approach to a roundabout or signalized intersection, it should normally be located clear of any queuing vehicles, so that there is no loss of capacity at the intersection. The following figure illustrates some of these points: 3
20m
1
(Table (Table 14.12) 14.12) Bus stop Lead in Decleration 30-15m Taper Length
10m min.
20m min.
1 Bus stop on exit side 2 Bus stop on approach side 3 Bus stop on approach side possible arrangement if all busesturn right
2
8.7.4 Parking Facilities:
The need for parking is determined by the existing and future development of the immediate surrounding area. Where
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Chapter 2: Section 8 : CIRCULATION CATEGORY possible, parking should be provided remote from the road, in conveniently located parking lots designed for the purpose. On service roads, some collectors and local streets it is however beneficial to include curbside parking where the adjoining land use warrants it. Curbside parking should not be provided: -
Within sight triangles at intersections, so that visibility can be maintained, and pedestrians can cross unmasked.
-
Opposite access points to properties, unless there is adequate width for vehicles to enter and leave the property without impinging on the parking space.
-
On bends, in order that adequate forward visibility can be maintained and that any encroachment into the path of oncoming vehicles is eliminated.
-
At pedestrian crossing points, to minimize the width to be crossed by pedestrians.
-
In advance of pedestrian crossing points, so that pedestrians can clearly see and be seen.
-
At hydrants.
-
At any other location where it would create unsafe conditions.
8.7.5 Gate Standards:
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Free zones and other gated communities should be bounded by fences and access control for privacy and security reasons. Gates should include the following standards: -
Gates shall be designed with sufficient capacity so that no stacking of incoming vehicles will occur on public roadways.
-
Gates shall be designed with sufficient capacity so that no stacking of outgoing vehicles impedes traffic at adjacent junctions or intersections.
-
No intersections or parcel driveways shall be permitted within 400 m of the gate area.
-
Each gate designated for cargo entry/exit shall have areas reserved for Customs facilities and truck parks for incoming and exiting vehicles especially for warehouses
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Chapter 2: Section 8 : CIRCULATION CATEGORY and industrial uses. -
Clear signage shall be installed both within and outside the area indicating the vehicle type permitted at each gate and the gate status i.e. Open, Closed especially in the free zone area.
-
Heavy vehicles gates and light vehicles gates shall be clearly designated for safety reasons in warehouses and industrial areas.
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY The aim of this section is to ensure the provision of adequate plots for the public facilities with efficient areas that fulfill the end-users needs.
9.1 Educational Facilities: 9.1.1
Governmental Schools:
They are mainly developed by the Ministry of Education (MOE). The allocation of governmental schools is undertaken by both DM and MOE. Therefore, developers should coordinate with MOE to fulfill their requirements according to their future plans.
9.1.2
Private Schools:
They comprise around 67% of total number of schools in Dubai. Based on densities and number of dwellings per hectare, the minimum number of schools and minimum area required by each type will be calculated. The following are the requirements of private schools by type. 1-1
Kindergartens:
They are defined as the program or class for four year old to six year old children that serve as an introduction to school. Maximum distance to school should be 1000 m. Following are the minimum area required for each density: Low density areas: Area = 5,500 sq.m Number of dwelling units served: 1,400 – 2,000 High density areas: Area = 4,600 sq.m Number of dwelling units served: 1,400 – 2,000 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground only Setbacks : 3.0m from each side Parking Spaces : 1 parking space/classroom + bus parking.
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY 1-2
Primary Schools:
They are defined as the program or class for six year old to ten year old children that serve as child’s formal education (grade 1 to 5). Maximum distance to school should be 1500 m. Following are the minimum area required for each density: Low density areas: Area = 8,300 sq.m Number of dwelling units served: 1,600 – 2,400 High density areas: Area = 7,500 sq.m Number of dwelling units served: 1,600 – 2,400 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground only Setbacks : 3.0m from each side Parking Spaces : 1 parking space/classroom + bus parking. 1-3
Intermediate Schools:
They are defined as schools at a level between elementary and high school, typically including grades six through nine. Maximum distance to school should be 2000 m. Following are the minimum area required for each density: Low density areas: Area = 9,300 sq.m Number of dwelling units served: 3,000 – 4,000 High density areas: Area = 7,500 sq.m Number of dwelling units served: 3,000 – 4,000 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground only
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY Setbacks : 3.0m from each side Parking Spaces : 1 parking space/classroom + bus parking. 1-4
Secondary Schools:
They are defined as schools for students between intermediate school and college; usually grades 10 to 12. Low density areas: Area = 14,800 sq.m Number of dwelling units served: 4,000 – 6,000 High density areas: Area = 12,000 sq.m Number of dwelling units served: 4,000 – 6,000 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground +2 Setbacks : 3.0m from each side Parking Spaces : 1.5 parking space/classroom + bus parking.
9.2
Health Facilities:
9.2.1 Government Sector:
They are mainly developed by the Ministry of Health (MOH) and Department of Health and Medical Services (DOHMS). The allocation of governmental hospitals and clinics are undertaken by both DM and DOHMS. Therefore, developers should coordinate with DOHMS and DM to fulfill their requirements according to their future plans.
9.2.2 Private Sector:
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According to studies carried by DOHMS, basic private primary health care facilities could be classified into four different classes; 1 - General clinic 2 - Specialty clinic 3 - Polyclinic 4 - Private hospital
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY The provision of those facilities tends to allocate private health services for maximum efficiency, taking into account population densities. 1-1 Private General Clinic:
It represents the basic private medical service run by one or more general practitioners. Low density areas: Area = 930 sq.m Number of dwelling units served: 1,000 – 1,400 High density areas: Area = 750 sq.m Number of dwelling units served: 1,000 – 1,400 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground +1 Setbacks : 3.0m from each side Parking Spaces : 1 parking space/Examination room. 1-2 Private Specialty Clinic:
A specialty clinic should be administered by one or more doctors of the same specialty of the clinic. Medium density areas: Area = 930 sq.m Number of dwelling units served: 1,400 – 2,000 High density areas: Area = 750 sq.m Number of dwelling units served: 1,400 – 2,000 Zoning Regulation: Built-up Area : preferably <60 %
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY Building Height : Ground +1 Setbacks : 3.0m from each side Parking Spaces : 1 parking space/Examination room. 1-3
Private Polyclinic:
It represents the most popular type of private medical services which includes varieties of medical specialization. Low density areas: Area = 1,120 sq.m Number of dwelling units served: 1,400 – 2,000 High density areas: Area = 930 sq.m Number of dwelling units served: 1,400 – 2,000 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground +1 Setbacks : 3.0m from each side Parking Spaces : 1 parking space/Examination room. 1-4 Private Hospital:
It is defined as a private medical institution supplied with specialized medical facilities where sick people are admitted for medical or surgical care. Low density areas: Area = 17,500 sq.m Number of dwelling units served: 10,000 – 14,000 High density areas: Area = 16,200 sq.m Number of dwelling units served: 10,000 – 14,000
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY Zoning Regulation: Built-up Area : preferably <40% Building Height : Ground +3 Setbacks : 3.0m from each side Parking Spaces : 2/ Dr. + 1/bed 9.3
Commercial Facilities: The commercial facilities are designed to provide a wide variety of retail facilities. The aim of planning standards for commercial facilities is to achieve the proper shopping floor space according to the projected population to avoid under-used retail or shortage of provision. Also, adequate shopping facility for daily needs should be considered. In this regard, a community shopping center will be provided which consists of a complex of shops that serves residents with their daily needs. Low density areas: Area = 8,000 sq.m Number of dwelling units served: 2,000 – 3,000 High density areas: Area = 6,500 sq.m Number of dwelling units served: 2,000 – 3,000 Zoning Regulation: Built Up Area
: As per DCR and CED’s decision, depending on the nature of the proposed developmnt. Building Height : Ground +1 Setbacks : 3.0m from each side Parking Spaces : 1 P.S/70 sq.m. floor area.
9.4
Police Facilities Police facilities are divided into two parts Police Stations and Police Posts. Police Stations are recommended to serve catchments of approximately 70,000 populations. In terms of location, a critical factor is response time. Dubai Police stressed that response time should not be more than 5 minutes.
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY Police Posts are smaller in scale and serve as security points for certain areas. However, police facilities should be allocated after coordinating with Dubai Police. 9.4.1
Police Stations: A station that policemen can use for keeping order in a certain community, and to preserve the rights of the people, enforcing of the government laws and regulations and prevention of crime. Low density areas: Area = 3,700 sq.m Number of dwelling units served: 24,000 – 30,000 High density areas: Area = 2,800 sq.m Number of dwelling units served: 24,000 – 30,000 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground +1 Setbacks : 3.0m from each side Parking Spaces : 1 P.S/70 sqm floor area.
9.4.2 Police Post: It is defined as a small police station that serves certain areas of special economical or social importance, such as airports, sea ports, water frontages, and commercial complexes. Low density areas: Area = 930 sq.m Covers areas of special economical importance High density areas: Area = 750 sq.m Covers areas of special economical importance
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY Zoning Regulation: Built-up Area : preferably <60% Building Height : Ground +1 Setbacks : 3.0m from each side Parking Spaces : 1 P.S/70 sqm floor area. 9.5
Civil Defense Facilities: Civil Defense facilities are divided into two parts, Civil Defense Centers and Civil Defense Points. Civil Defense Centers should serve a catchment area of approximately 50,000 populations. The response time should be 2-4 minutes for emergency vehicles to reach all buildings. This response time generally translates to a service radius of 2 km. Civil Defense Points are smaller in scale and serve certain areas. However, Civil Defense facilities should be allocated after coordinating with Dubai Civil Defense.
9.5.1 Civil Defense Centers: These are defined as stations housing fire apparatus and firemen to respond to fire and manmade hazards in a certain area. Low density areas: Area = 3,200 sq.m Number of dwelling units served: 14,000 – 20,000 High density areas: Area = 2,800 sq.m Number of dwelling units served: 14,000 – 20,000 Zoning Regulation: Built-up Area : preferably <60 % Building Height : Ground only Setbacks : 3.0m from each side Parking Spaces : 1 P.S/70 sqm floor area. 9.5.2 Civil Defense Points: They are defined as fire fighting points housing fire apparatus and firemen to respond to fire and manmade hazards in certain
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY economically important areas. The service zone of civil defense points covers areas of residential communities of min. 600 dwelling units with maximum service distance of 4 km. Low density areas: Area = 930 sq.m Number of dwelling units served: 600 High density areas: Area = 750 sq.m Number of dwelling units served: 600 Zoning Regulation: Built-up Area : preferably <60% Building Height : Ground + 1 Setbacks : 3.0m from each side Parking Spaces : 1 P.S/70 sqm floor area
9.6
Post Facilities: Emirates Post desired standard is one post office branch for every 30,000 people. They also aim to provide a private P.O. Box for every business enterprise in Dubai and one private P.O box for at least 2 residential units.
9.6.1 Post Office: It is defined as a local branch of the Emirates Post Authority that provides mail delivery services for individuals, government authorities, and business units. Low density areas: Area = 930 sq.m Number of dwelling units served: 4,000 - 6,000 High density areas: Area = 750 sq.m Number of dwelling units served: 4,000 - 6,000
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY Zoning Regulation: Built-up Area : preferably <60% Building Height : Ground only Setbacks : 3.0m from each side Parking Spaces : 1 P.S/70 sqm floor area. 9.6.2 Post Shelters: They are defined as private P.O. boxes shelters that contain 250 private post boxes each, and serve mainly individuals and business establishments. They are mainly provided for commercial areas, community service centers, remote residential communities, and within post offices. Each should serve 400 to 600 dwelling units or 250 business establishments with minimum area or 6mX6m Zoning Regulation: Setbacks : as per standard design. Parking Spaces : should be located adjacent to public parking lots.
9.7
Recreational Facilities: The purpose of having open spaces such as parks and playgrounds is to promote public health and create safe environment for kids. Community parks and playgrounds’ standards that will have to be particularly demonstrated:
9.7.1 Community Park: It is defined as a fenced recreational space within the community, which includes green areas, pedestrian walkways, children playgrounds, and other family’s entertainment facilities. For both low and high density areas: Area = 2,200 sq.m/ 200 units Number of dwelling units served: 1,400 - 2,000 Zoning Regulation: Parking Spaces : 1 P.S/140 sqm.
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Chapter 2: Section 9 : PUBLIC FACILITIES CATEGORY 9.7.2 Playgrounds: It is defined as a piece of ground used for recreation and sport activities of the young people in a residential community. It is provided with one or some of the following sport fields: football, volleyball, basketball and handball. Low density areas: Area = 1,000 sq.m/ 200 units Number of dwelling units served: 1,400 - 2,000 High density areas: Area = 500 sq.m/ 200 units Number of dwelling units served: 1,400 - 2,000 Zoning Regulation: Parking Spaces : 1 P.S/140 sqm.
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Chapter 2: Section 10 : GENERAL SUBDIVISION GUIDELINES
10.1
The Plot Level
There are some requirements or guidelines adopted by the team of Detail Planning Unit which have been applied and approved for all National’s residential areas. - Accessibility:
All plots should have direct access to local roads. Plots that locate on higher levels of roads such as secondary and primary arterials should have access through service roads. Access is prohibited on expressways and freeways. - Plot size & shape:
Plots should be with minimum frontage of 10 m. The appropriate ratio between width and length should be 1:2 or 2:3. In addition, irregular shapes should be avoided to provide efficient space utilization and better opportunities for the architects.
X 2X 2X 3X
10.2
The Block Level:
It is known that rows of gathered plots make blocks. Maximum length of blocks should not exceed 250 m, sikkas (6m) or roads are always placed around to determine their boundaries.
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Chapter 2: Section 10 : GENERAL SUBDIVISION GUIDELINES 10.3
Roads Standards:
Road hierarchy principle is applied to provide better mobility for traffic considering safety factor as primary objective, so that, through traffic is prohibited in all communities. Also the minimum width of local roads should be 18 m (60 ft). Traffic distribution, road layout type and other minor guidelines shall be discussed.
1- Layout Type: The most desirable layout pattern that is applied by DM is the one that is mixed between regular grid and loop systems. It is noted that cul-de-sacs are narrowly applied as well as the free curvature routes.
10.4
Restricted Local Roads Connections:
The spacing standards for local roads should be with minimum distance of 60 m. Other dangerous interchanges that have sharp angles should be avoided. In addition, plots that are located on T- junctions should have chamfers that allow better view for all road users, it usually has chamfer dimension of 6m.
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Chapter 2: Section 11 : PLANNING APPENDICES 11.1
Appendix (1) - One way, one lane local street with parallel parking - residential / commercial (ROW 18.3 m - 60’)
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Chapter 2: Section 11 : PLANNING APPENDICES 11.2
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Appendix (2) - Two way, two lane local street with parallel parking - residential / commercial (ROW 18.3 m - 60’)
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Chapter 2: Section 11 : PLANNING APPENDICES 11.3
Appendix (3) - Two way, two lane local street with parallel parking – Industrial (ROW 18.3 m - 60’)
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Chapter 2: Section 11 : PLANNING APPENDICES 11.4
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Appendix (4) - Two ways, four lane collector with parallel parking – Residential/Commercial (38 m - 125’)
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Chapter 2: Section 11 : PLANNING APPENDICES 11.5
Appendix (5) - Two ways, four lane collector with parallel parking – Industrial (38 m - 125’)
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Chapter 2: Section 11 : PLANNING APPENDICES 11.6
Appendix (6) - Two ways, four lane secondary arterial with service road and parallel parking - Residential/Commercial (45.7 m - 150’) Symmetrical
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Chapter 2: Section 11 : PLANNING APPENDICES 11.7
Appendix (7) - Two ways, six lane secondary arterial with service road and angled parking - Residential/Commercial (61 m - 200’) Symmetrical
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Chapter 2: Section 11 : PLANNING APPENDICES 11.8
Appendix (8) - Two ways, four lane secondary arterial – Industrial (45.7 m – 150’) Symmetrical
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Chapter 2: Section 11 : PLANNING APPENDICES 11.9
Appendix (9) - Two ways, four lane primary arterial with service road and angled parking-Residential/Commercial (67 m - 220’) Symmetrical
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CHAPTER 3: MEP SERVICES
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Chapter 3 : Section 12 : GENERAL This chapter covers all building services such as Electrical, Mechanical including HVAC, Telecommunications, Water Supply, Plumbing and Drainage. It also addresses Fire Protection, Environment, Health and Safety aspects that have to be adhered to during the planning, detailed design, construction and operation of any development. As Water and Electricity are provided by DEWA and Telecommunication Services are provided by either Etisalat or du, the design and construction of these services should follow the most up to date rules and regulations of these authorities. Another Ports, Customs and Free Zone Corporation company, Environment, Health and Safety is entrusted with regulating and enforcing the regulations related to Environment, Health & Safety, Fire protection and Drainage Services and their rules and regulations should be referred to for these areas. (see website http://www.ehss.ae for further details). This chapter therefore addresses submission requirements for the various services and outlines rules, regulations and codes and standards that need to be followed in each area. In addition, some general regulations and technical guidelines are provided for some services to act as a resource for the developers and facilitate their task of going through various phases of development approvals. 12.1
Abbreviations
The following is a list of abbreviations frequently used in this Chapter: ◘
HVAC : Heating, Ventilating and Air Conditioning
◘
ASHRAE : American Society of Heating, Refrigerating and Air Conditioning Engineers
◘
SMACNA : Sheet Metal and Air Conditioning Contractors’ National Association
◘
CIBSE : Chartered Institution of Building Services Engineers
◘
DW 142 & 144 : Duct Work Specifications
◘
BS-EN : British European Standards
◘
DM : Dubai Municipality
◘
RTA : Road and Transport Authority
◘
Etisalat and Du : Telecommunication Service Providers
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Chapter 3 : Section 12 : GENERAL
76
◘
DCA : Dubai Civil Aviation Authority
◘
DEWA : Dubai Electricity and Water Authority
◘
IEEE : Institute of Electrical & Electronics Engineers
◘
IEC : International Electro -Technical Commission
◘
IEE Wiring Regulations: International Electrical Engineers Wiring Regulations.
◘
ROW : Right of Way
◘
CSD (W) : (DEWA’s) Consumer Service Department Water
◘
MDF: Main Distribution Frame.
◘
MEP: Mechanical, Electrical and Plumbing
◘
dB: Decibel
◘
JAFZA:Jebel Ali Free Zone Authority
◘
kVA: kilo Volt Ampere
◘
kA : kilo Ampere
◘
LV: Low Voltage
◘
MV:Medium Voltage
◘
HV : High Voltage
◘
uPVC : unplasticised poly vinyl chloride.
◘
DB : distribution board
◘
ACB : Air Circuit Breaker
◘
MCCB : moulded case circuit breaker
◘
MCB : miniature circuit breaker
◘
CED : Civil Engineering Department
◘
Hz : Hertz
◘
V : Volt
◘
kW : kilo Watt
◘
Gal. : Imperial Gallons
◘
pdf : Portable Document Format
◘
XLPE : Cross Linked Poly Ethylene
◘
SWA : Steel Wire Armoured
◘
GRP: Glass Reinforced Plastic
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Chapter 3 : Section 12 : GENERAL ◘
IP : Ingress Protection
◘
HBC : High Breaking Capacity
◘
PF: Power Factor
◘
R Y B : Red Yellow Blue
◘
kWH : kilo Watt Hour
◘
ELCB : Earth Leakage Circuit Breaker
◘
A/C : Air – Conditioner
◘
kph : kilo meter per hour
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Chapter 3 : Section 13 : SERVICE CONDITIONS The following Service Conditions shall be considered as the design conditions unless otherwise specified explicitly. The climate in Dubai is typical of a coastal area in the Arabian Gulf region and all the equipment designed shall be suitable for the following climatic conditions: Altitude
: Sea Level.
Relative Humidity
: Average 60/70%: Maximum 100%
Ambient Temperature
: Mean monthly Max 39.2°C: Min 14.2oC Highest max. Temperature 47oC Lowest min. temperature 8.9oC
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Atmosphere
: Saliferous, containing dust particles and pollutants.
Rainfall
: Rare, but heavy.
Wind
: Gusts may reach 160 km/hour.
Design Ambient Temperature
: 50oC plus allowance for solar radiation
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Chapter 3 : Section 14: REFERENCED STANDARDS AND REGULATIONS Below is a list of generic Standards, Handbooks and Guides for information purposes. The latest releases of the specific documents, their amendments and addenda should be used during the development process.
HVAC •
ASHRAE Handbooks
•
SMACNA
•
CIBSE Guidelines
•
DW 142 & 144
Plumbing and Drainage •
CIBSE Guidelines
•
The Institute of Plumbing Guide
•
BS-EN Standards
Fire Protection Please refer to EHS Guidelines.
Electrical •
IEE Wiring Regulations for Electrical Installations - latest revisions.
•
Relevant IEC / BS Codes and Standards for the Electrical Works.
•
DEWA Regulations - latest edition.
Other Guidelines/Regulations •
Dubai – Etisalat / ’du’ Regulations,
•
Dubai – Road and Transport Authority (RTA) Regulations.
•
Dubai Civil Aviation Authority (DCA) Regulations.
•
Dubai Municipality (DM) Regulations.
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Chapter 3 : Section 15 : SERVICE REGULATIONS
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15.1
EHS
Environment, Health, Safety and Fire Protection (EHS) Regulations are mandated by Environment, Health and Safety of the Ports, Customs and Free Zone Corporation and can be downloaded from the website www.ehss.ae and the same shall be followed.
15.2
HVAC
All Engineers & Developers shall comply with the “Regulations of Technical Specifications for Thermal Insulation Systems and Control of Energy Consumption for Air- Conditioned Buildings in the Emirate of Dubai” issued by DM (latest edition) on making drawings and engineering designs and in the construction of building works with air-conditioning.
All the HVAC designs shall in general comply with ASHRAE Standards.
Heat gain calculations complying with the above regulations with drawings shall be submitted to CED for review and approval during the Building Permit application process.
Also systems and techniques used for HVAC should comply with the regulations of EHS of PCFC.
Any party violating the provisions hereof shall be subject to the penalties stipulated by CED.
15.3
Plumbing & Drainage
All the Plumbing & Drainage designs shall in general comply with the references listed in Section 14.
A Utility Layout Plan shall be submitted to CED for review and approval during the Building Permit application process. This Plan should contain coordinates, depths, levels and sizes for all pipes for sewer and surface drainage in addition to similar details for other utilities.
Also systems and techniques used for Plumbing & Drainage should comply with the regulations of EHS of PCFC.
Any party violating the provisions hereof shall be subject to the penalties stipulated by CED.
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Chapter 3 : Section 15 : SERVICE REGULATIONS 15.4
Electrical
Power requirements for all developments are provided by Dubai Electricity and Water Authority (DEWA) and their rules and regulations have to be complied with in all aspects.
The developer shall confirm maximum installed power capacity in kW, required for his operations on the property he intends to lease from JAFZA or other Dubai World Business Units The above requirements of electric power shall be duly filled in at the appropriate space on the lease application form (See Appendix A, 18.1) for JAFZA’s Application Form as an example).
CED also requires an NOC (No objection Certificate) from DEWA’s Electricity Department before issuing a Building Permit. Similarly DEWA requires an NOC from CED before supplying power, permanently or temporarily during the construction process.
Generally all Electrical Installations shall comply with particular requirements of CED regulations and latest General Guidelines of local Authority (DEWA). In case of any discrepancy, the same shall be referred to CED. Following are some of these General Guidelines current at the time of publication and the developer or his agents are advised to check any updates to these upon application.
Materials, design and workmanship for all electrical installations shall be in strict accordance with the current IEE Wiring Regulations and to acceptable international standards similar to the BS.
15.4.1 Mode of Power Supply
DEWA shall be responsible for providing power connection up to the consumer metering point located at the plot fence line or within the plot with full access to DEWA for 24 Hours. Pocket substation (if required) shall be located within the leased property with full access to DEWA maintenance personnel.
132kV/11kV distribution network shall be provided by DEWA up to leased plot and downstream distribution shall be the responsibility of the Developer. Electricity supply will be provided either at 11kV, 50 Hz or 400 Volts, 50Hz at the discretion of DEWA.
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Chapter 3 : Section 15 : SERVICE REGULATIONS
As per DEWA’s Regulations, a single source of power connection shall be provided to each plot unless otherwise special arrangements have been made with DEWA.
Total connected loads equal to or greater than 1000 kVA are generally provided only through dedicated substations. 15.4.2 Permanent Power Connection.
Developer shall liaise directly with DEWA for obtaining permanent power connections by completing all DEWA formalities as stipulated in DEWA Regulations. All related permanent power connection charges due to the Service Authorities shall be borne by the developer /lessee.
Any 11kV switchgear used shall comply with the latest edition of relevant IEC Standards or equivalent. Generally, switchgear which is metal clad and utilises withdrawable circuit breaker trucks having an integral earthing facility with essential foolproof interlocks shall conform to the requirements of DEWA. The technical specifications of 11kV switchgear and transformers supplied and installed by the developer shall be submitted to DEWA for approval prior to installation.
Relay setting calculation shall be submitted for DEWA approval prior to release of permanent power connection.
The terms and conditions for supply of electricity to the developer’s premises shall be as stipulated on DEWA’s composite application form (Appendix E, 18.5).
15.4.3 Temporary Power Requirement
Any temporary power supply for site services during construction shall be the responsibility of the developer.
NOC to DEWA shall be obtained from CED Services. A request which indicates the Plot Number, Client Name / Project Name, Consultant Name, Contractor Name and the power requirement in kW shall be sent via Email to CED Services.
15.4.4 Additional Power Requirement
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Any additional power requirement for existing facilities, the Developer/lessee shall directly approach DEWA after obtaining CED NOC. A request for this NOC indicating the Plot number,
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Chapter 3 : Section 15 : SERVICE REGULATIONS Client name / Project name, Consultant name, Contractor name, additional power in kW shall be sent via Email to CED Services. 15.4.5 Standby Power Supply
If Standby Generators are used, they shall be connected to the electrical distribution system only through an approved electrical and mechanical interlocking device, to prevent paralleling of generator supply to incoming mains.
EHS approval shall be obtained prior to the installation of Generator at site. (Refer to EHS Regulations)
15.4.6 Earthing
Suitable earthing systems shall be designed and installed as per latest edition of relevant BS- EN Standards.
Neutral earthing arrangements shall be compatible with the existing earthing system of the DEWA electrical distribution network
15.4.7 Lightning Protection
Suitable lightning protection system shall be designed and installed as per the latest edition of relevant BS-EN Standards.
15.4.8 Vector Group
The Vector Group of any power distribution transformers used shall conform to the requirements of the DEWA power system.
15.4.9 Power Factor Correction and Under Voltage Protection
The internal electrical distribution system at the developer’s premises shall comply with DEWA’s General Guidelines for Power Factor Correction and Under Voltage Protection (Appendix F, 18.6).
Harmonic suppression equipment shall be installed at the load side if the types of load generate more harmonics than that is allowed as per the standard.
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Chapter 3 : Section 15 : SERVICE REGULATIONS 15.4.10 Lighting
Artificial lighting to habitable rooms shall be to Standards stipulated in IEE Wiring Regulations. Lighting installations at warehouses/industrial areas/offices and other common purpose areas shall comply with the requirements of relevant British Standards or equivalent Standards approved by DEWA. The lighting luminance levels shall be as indicated in Appendix B, 18.2.
All external area lighting shall be controlled via timer & photocell controlled circuit with over riding facility unless otherwise specified separately.
15.4.11 ROW
The services shall be installed as per the standard ROW. The details shall be obtained from the CED Drawing office (ced.
[email protected])
On entranceways across the Authority’s service corridors, cables shall be routed through uPVC Ducts and sufficient number of spare ducts shall be provided. Any existing cables in such areas shall be split ducted by the developer to the approval of CED/ DEWA.
All road crossings require the approval of DEWA.
15.4.12 General PCFC’s NOC Conditions
DEWA requires an NOC from PCFC, CED and this is usually issued subject to conditions and limitations. These are reproduced in Appendix C, 18.3
15.4.13 Documentation Details. a)
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Building Permit
The following electrical drawings /documents shall form part of the Building Permit for modification / additional work on the existing leased facility. Please refer to the Building Regulations and Design Guidelines (Blue Code) •
Proposed lighting and small power layout of the extended /modified areas.
•
Single line diagram and load schedule for the existing and proposed LV Distribution Network.
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Chapter 3 : Section 15 : SERVICE REGULATIONS
• •
Load schedule of all new proposed DB’s. Layout of the machineries if any.
b)
Digging Permit
NOC copy from services authority, key plan of the project indicates plot number, project number, client name, consultant name. c)
Plot Number, Project Number, Project Name, Client Name, Consultant Name. d)
NOC to DEWA for Developers to liaise with DEWA
Plot Number, Project Number, Project Name, Client Name, Consultant Name. f)
NOC to DEWA for release of temporary power
Plot Number, Project Number, Project Name, Client Name, Consultant Name. e)
NOC to DEWA for release of permanent power
Operational Fitness Certificate
An official request through our Building Permit Section with details of the facility shall be made. Operational Fitness Certificate shall be issued by EHS/CED upon satisfactory reports received from the respective departments.
15.4.14 Indemnity to the Authority
Though all efforts will be made by the Service Authority to maintain the quality and continuity of power supply, the Authority will assume no responsibility, in any manner whatsoever, for any consequences arising out of an unexpected degradation/failure of the power supply. If continuity of power is essential for the safe operation of the facility, it shall be the responsibility of the developer to provide suitable standby power supply arrangements in the event of rare mains supply failures
15.5
Water
Dubai Electricity and Water Authority is the supplier of water for all developments and unless otherwise specified, all water
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Chapter 3 : Section 15 : SERVICE REGULATIONS related installations shall comply with the particular requirements of CED and the latest General Guidelines of (DEWA).
Any temporary water supply for site services during construction shall be the responsibility of the developer. NOC to DEWA shall be obtained from CED Services.
CED requires developers to provide an NOC from DEWA – Water Department for any Building Permit application or demolition or modification. Shop Drawings for Water Services have also to be approved by DEWA and below is an outline of these processes. The developer should ascertain he is complying with the most up to date requirements by visiting DEWA’s Web Site.
15.5.1 New Building NOC
Application for building NOC shall be submitted by the Consultant / Contractor through the DEWA Web (www.dewa.gov.ae ). The details to be provided with the application are as follows: 1.
Plot No.
2.
Owner Name
3.
Type of building / project
4.
No of storeys or No. of villas.
5.
One location point – Northing and Easting co-ordinates.
6.
For plots where planning is not available, proper drawing with co-ordinates points shall be provided.
7.
Total quantity of domestic purpose water required for 24 hrs.
8.
Ground / underground water tank.
9.
Overhead tank.
10.
Fire tank requirement not to be included in the 24hr. requirement.
15.5.2 Documents required to be attached with the NOC application:
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1.
Site plan / affection plan issued by CED.
2.
Setting out plan showing the location of the ground level or underground water tank position.
3.
Detailed plan showing the location of the sub-meters. All sub-meters should be placed in a proper, well lit and safely accessible location . Dedicated room for water meters is a
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Chapter 3 : Section 15 : SERVICE REGULATIONS must, in case the water meters are not on the building roof (See Technical Requirements, Section 16). 4.
For large projects manual attachments (hand delivered) are to be delivered to the CSD (w) - NOC section.
15.5.3 Revalidation of Building NOC
For revalidation of Building NOC, application is to be submitted by the Consultant / Contractor through the DEWA Web (www. dewa.gov.ae ). The same type of information as for a new NOC should be provided. 15.5.4 Documents required to be attached with the NOC application: 1.
Site plan / affection plan issued by CED.
2.
Copy of previous NOC issued to consultant.
3.
Setting out plan showing the location of the ground level or underground water tank position.
4.
Copy of DEWA- (W) approved shop drawings.
5.
Detailed plan showing the location of the sub-meters. All sub-meters should be placed in a proper well lit and easily accessible location.
Dedicated room for water meters is a must in case the water meters are not on the building roof.
6.
For large projects Manual attachments are to be delivered to the NOC section.
15.5.5 For the Demolition of any Existing Building
The following documents shall be submitted to DEWA: 1.
Letter of request for disconnection and Final bill, to Consumer Services.
2.
Site plan.
3.
A sketch showing limits of demolition area.
4.
Key plan.
15.5.6 Shop Drawing Approval
The following documents shall be required to be submitted by Consultants/ Contractors to DEWA for Shop Drawings Approval.
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Chapter 3 : Section 15 : SERVICE REGULATIONS Affection plan with DLTM coordinates (copy) NOC –water services plan (Copy) Location and size of the main connection chamber.
Shop drawings stamped and signed by Consultant and Contractor with all details especially the following points. •
Water entry point and external connection.
•
Water tanks (location, dimensions, area, and net capacity in Gal.)
15.5.7 DEWA-W NOC Conditions
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DEWA issues its NOC subject to a list of limitations and conditions, as shown below: 1.
The position of pipelines marked in the drawings, is approximate and not to scale.
2.
The Contractor will be responsible for all the consequences of any damage to DEWA’s pipeline due to carelessness and will be charged as per Act (2)/1994 of Government of Dubai. And as per DEWA’s Rules and Regulations.
3.
In case of breakage / leakage of main pipeline / polyethylene pipe the contractor has to inform DEWA as soon as possible on Tel. 991 (24hrs). The Contractor is not authorized to repair the polyethylene pipe or isolate DEWA’s main pipeline by closing the valve.
4.
The Contractor must obtain NOC for construction prior to commencement of any works with trial excavation details.
5.
Shop drawings of water plumbing layout along with layout of sub-meters and their locations, with meter room/cabinet details shall be approved by DEWA before commencement of any works (See Technical Requirements, Section 16).
6.
The contractor shall ascertain exact location and depth of DEWA’s water pipelines by trial excavation and take all necessary precautionary measures such as sheet piling, shoring etc, for deep excavation and loose ground strata.
7.
For buildings with basements and deep excavation, cross-section details along with shoring details showing the offset / clearance between the permanent shoring
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Chapter 3 : Section 15 : SERVICE REGULATIONS and the temporary shoring shall be submitted before commencement of works. 8.
No heavy machinery or vibrating equipment, temporary structure like porta-cabin, building materials etc, should be placed above or near the pipeline and caving under the pipeline shall not be allowed. Septic tank, soak way or any permanent structure should be at least 1.5 m away from the pipeline.
9.
Concrete thrust blocks behind Tee, bends & reducers etc, shall be provided and adequately protected during the works even if the same is not reflected in the drawings.
10. Water connection shall be provided only if water pipeline network is available. 11. Please ensure 100% circulation of water in all storage tanks to avoid any health hazard. 12.
It is mandatory to provide storage reservoirs for 24hrs. requirement of water for the premises use.
13. It is mandatory to provide ground level / underground water tank with a storage capacity of about 75% of total requirement mentioned. 14. The height of the entry point shall not be more than 3 meters from the ground floor level. 15. Tank capacities (ground and overhead) shall be within the following limits: Minimum Capacity = 1 X daily consumption + fire fighting reserve Maximum capacity = 3 X daily consumption + fire fighting reserve 16. In the case where underground / ground level reservoir is common for fire fighting and domestic purposes, water should be drawn out from a tapping which is 15 cm above the bottom level of the tank for both fire –fighting and domestic purposes. 17. Direct pumping of water from supply lines will not be allowed. Water must be pumped from underground / ground level reservoir only. 18. N.O.C is valid up to 6 months only from the date of issue. Contractor must revalidate the N.O.C already issued to the consultant.
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Chapter 3 : Section 15 : SERVICE REGULATIONS 19. Copy of NOC to be available at site.
15.6
Telecommunications
Unless otherwise specified separately, generally all Telecommunication related Installations shall comply with latest General Guidelines of local Authority (Etisalat and/or ‘du’) who would be providing the services.
Any temporary telecommunication services for site during construction shall be the responsibility of the developer. NOC to Etisalat/’du’ shall be obtained from CED Services.
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The above NOC conditions are for information only. Consultant/Contractor shall liaise with DEWA to obtain the latest NOC conditions.
Detailed Telephone System Drawings showing all points and single line diagrams for telephone, fax, internet, cable TV and fiber optic requirements of the buildings should be submitted at the Building Permit Application. These should comply with the Service Provider’s requirements and be accompanied by an NOC from such provider.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES 16.1
EHS
Environment, Health, Safety and Fire Protection (EHS) Regulations can be downloaded from the website www.ehss.ae and the same shall be followed.
16.2
HVAC
All HVAC installations shall be designed in accordance with latest editions of ASHRAE Handbooks, CIBSE, SMACNA and DW 142/144 Standards.
Thermal Insulation of buildings shall be in accordance with the latest edition of “Regulations of Technical Specifications for Thermal Insulation Systems and Control of Energy Consumption for Air Conditioned Buildings in the Emirate of Dubai” issued by DM. All necessary Heat Gain calculations along with drawings shall be submitted (in “pdf” format) for approval in accordance with Regulations.
The ventilation system shall be designed in accordance with ASHRAE Handbooks and EHS Regulations.
16.3
Plumbing & Drainage
The plumbing and drainage services shall be designed and installed in accordance with CIBSE Handbooks, Institute of Plumbing Guide, BS-EN Standards and the EHS Regulations.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES 16.4
Electrical
These technical guidelines shall be considered for all Electrical Installations pertaining to buildings, prefabricated buildings, temporary constructions, modular buildings for assembly at site and buildings of the portacabin type. They are to be read in conjunction with the relevant British Standards & IEC Standards, DEWA Regulations, EHS Regulations and other CED Regulations.
16.4.1 Mode of Installation
The Contractor shall select one, or a combination of methods of installation, with due consideration given to the stated intended use of the buildings or structures, as given by the Engineer; viz : Domestic, Commercial, General Purpose, Sanitary, Religious, Medical, Food Preparation, Food Consumption, Laboratory, Hazardous Zones or Special Purpose Areas.
16.4.2 Cables a)
The Contractor shall supply and install a complete network of cables, trunking, conduits and wiring to the satisfaction and approval of the Engineer.
All trunking and conduits shall be arranged in a neat and inconspicuous manner and each system shall be completely assembled, inspected and tested before drawing in of cables commences.
All works shall be carried out in accordance with the latest edition of the IEE Wiring Regulations for Electrical Installations and the recommendations of the equipment manufacturer. b)
Buried Installation
Cables buried in the ground shall be laid as follows: (i)
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General Instructions
The excavated cable trench shall be approximately 1250mm deep for HV Cables and 750 mm for LV Cables. The cable shall be laid on to a layer of clean soft sand 150 mm thick. Over the cable another layer of 150 mm clean soft sand shall follow protected by concrete cable
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES protection tiles. The excavation shall then be backfilled with soft earth layers of 200 mm depth and perfectly rammed. A yellow plastic warning band shall be laid above the cable protection tiles. A safety distance of 300 mm to other services such as water pipes, communication cables, gas and oil pipes, etc., shall be observed. (ii)
Soft sand to be sieved, washed, and free from large granular particles and sea shells.
(iii)
Cable tiles to be 250 mm wide x 450 mm long, interlocking reinforced concrete type to the approval of the Engineer.
(iv)
Marker tape to be 150 mm wide yellow PVC with black legend “Danger Electric Cables Below” marked in the Arabic and English languages.
(v)
All control and power cables shall be laid separately under strict observation of their permissible bending radii, generally taken as 8 times the overall diameter of the cable.
(vi)
Special precautions shall be taken to ensure that no closed iron magnetic circuit is formed around single core cables laid in single or trefoil formation, or around any cable liable to carry unbalanced load currents. The Contractor shall be responsible for any damage caused by him to the buildings or other services and shall be responsible also for making good any damage so caused by his works.
(vii) The pulling and fixing of cables and the making of all terminations and joints are to be strictly in accordance with the manufacturer’s instructions, using the recommended tools and appliances for the purpose. C)
Cables and Accessories
(i)
Armoured Cables
All new main and sub-main circuit cables shall be XLPE insulated stranded copper conductors single/multi core, galvanised steel wire armoured, PVC sheathed overall, 600/1000 volts grade.
Cables shall be rated and selected as per IEE Regulations and installed following the manufacturer’s recommendations.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES (ii)
Glands a) SWA cables
: Type CW, brass, outdoor type complete with:Brass back nut Earth Tag Shroud
b) Flexible Cables : Type A1/A2, brass or PVC compression gland complete with back nut. (iii)
Cleats
Hook cleats, secured by galvanised studding, galvanised wall anchors, or brass wood screws into plastic wall plugs, as appropriate.
Conduit type saddles will not be approved.
Maximum spacing of supports shall be 400 mm horizontal, 500 mm vertical. (iv) Markers
Markers to be white thread-on type fitted to carrier strip, with lettering/numbering in black and fitted so as to read outward from terminations. Carrier strip to be secured by black nylon ties. (v)
(vi)
Wire Markers
White thread-on type, with lettering/numbering in black and to be fitted so as to read outward from terminal. Oversize markers shall not be approved. Lugs
Tinned copper compression type (vii) Trays
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Cable trays shall be perforated and manufactured from solid steel complying with latest edition of relevant British Standards.
All cable trays shall be of the heavy duty return flange type and be supplied in 2400 mm or 3000 mm lengths as appropriate.
Trays up to but not exceeding 150 mm wide shall be of 20 SWG minimum thickness; trays of >150 mm up to 400 mm width shall be of 16 SWG minimum thickness and trays of width >400 mm up to 600 mm shall be of 14 SWG thickness.
Cable Trays installation shall be complete with all accessories, mounting brackets, couplings, bends, tees and intersections etc., from the same manufacturer. Trays and accessories shall be hot dip galvanised. Sections shall be joined together with minimum
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES M6 mushroom headed safety bolts and nuts to comply with latest edition of relevant British/ Equivalent Standards.
Holes cut in trays for the passage of cables shall be drilled and suitably bushed with lead. Cuts, marks, and abrasions shall be treated with cold galvanising compound then finished with a matching paint.
Earth continuity is to be ensured throughout the entire installation. Adequate copper earthing strips shall be fitted at every joint.
Supports to be galvanised steel spaced so as not to exceed the manufacturer’s recommendations. Where building design features preclude maximum support spacing, additional strengthening and bracing of the tray plate shall be incorporated to the Engineer’s approval.
For indoor installations, cables are to be secured by heavy duty nylon locking ties on horizontal runs, maximum spacing 600 mm.
For vertical cable runs, PVC coated aluminium strip, punched and shaped to form saddles and secured by galvanised steel slotted mushroom head bolts and nuts shall be evenly spaced at a maximum distance apart of 600 mm.
For all outdoor installations PVC coated aluminium strips shall be utilised for cable securement throughout. d)
Cable Terminations
At all terminations of wires and cables, the insulation shall be neatly stripped without nicking the strands of the conductors. Cable lugs for power cables shall be of the correct size for both conductor cross sectional area and fixing hole diameters. Cable glands or clamps shall be fitted in all cases to prevent any stress being borne by the conductors or the terminals. It is important that the sealing compound and sleeving used in terminations should be selected to suit the service temperature conditions under which the cable is to operate.
No termination will be accepted if the insulation reading, 24 hours after making off, is less than 100 megohms using a standard 500 or 1000 volt “megger” (HV and MV cables only).
Where cable terminations are likely to be disturbed for maintenance purposes, some slack cable in a loop or other suitable form can be allowed at a convenient place in the run. e)
Cable Lists
The Contractor shall submit all the technical data pertaining to
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES each type and kind of power and control cable covered by the Contract, giving the following information as minimum:
• • • • • • • • • • • • f)
Item and Code Number Description and location Manufacturer and catalogue number Type of cable, insulation serving, armouring and sheathing Cross-sectional area in mm² Current carrying capacity in Amps De-rating factor/ambient temperature Grouping factor Length in metres Type of cable termination Maximum short-circuit capacity in kA. Voltage drop Cable Schedule
A cable schedule is to be submitted to the Engineer after the completion of the works and shall indicate the cable numbers, cable diameter, voltage, number of conductors, conductor size, termination and connections at each end, and show the cable route.
16.4.3 Earthing
The Contractor shall carry out the electrical installation so that the earthing of the system is in accordance with IEE Regulations and the recommendations of the latest standards. a) Items to be Earthed
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Shall include but not be limited to:
All exposed conductive parts of electrical and air conditioning equipment, water and gas pipes, water heaters, metallic sink units, cooking appliances, food storage and display units, light fittings and water coolers.
All items in the system shall be effectively earthed and shall be continuously electrically conductive so that the electrical resistance at any point in the system to the main distribution board shall not exceed 0.5 Ohms.
Testing as specified in the IEE Regulations shall be carried out and test reports submitted to the Engineer.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
The neutral conductor shall not be earthed anywhere within the installation.
b)
These shall have a cross-sectional area in accordance with IEE Regulations.
Wires to be PVC insulated, stranded copper with green/yellow coloured sheath.
Protective Conductors
c)
16mm diameter copper-clad steel rods shall be driven into the ground at the earth pit locations. The rods shall be of the extendable type, in lengths of 1220 mm, complete with couplers, driving caps and heavy duty clamps from the same manufacturer.
The maximum earth rod resistance per earth pit shall not exceed 1.0 Ohms.
The maximum resistance per earthing installation shall not exceed 0.5 Ohms.
A minimum of 3 number lengths of earth rods shall be utilised per each earth pit. Should this number not achieve the desired resistance value then the earth electrode shall be extended by driving additional rods.
Should ground conditions preclude the driving of earth rods by percussive hammer, then installation by drilling shall take place. A hole shall be bored by means of an earth drill of minimum diameter 50 mm, to a depth necessary for the number of earth rods to be installed.
The preassembled earth rods shall be inserted into the hole. The hole should then be filled with pourable slurry consisting of an amalgam of 40% sand, 60% “Bentonite”, or petroleum coke, and water. If this method still does not result in an earth rod resistance to the specified value, then additional earth pits shall be necessary. These shall be located at positions approved by the Engineer.
The minimum distance between earth pits shall be 6000 mm.
Earth electrodes shall be connected by approved heavy duty clamps to the main protective conductors, which shall be as detailed elsewhere in the Specifications.
Upon completion of installation and following testing the protective conductor connection shall be protected by the application of 50 mm wide wax impregnated tape.
Earth Electrodes
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
16.4.4 Main (LV) Distribution Panel
Voltage Fault Level Enclosure
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: 400V 3 Phase - 4-wire 50Hz. : As applicable to design specifications. : Vermin proof, metallic construction, wall or floor mounting. Hinged and lockable door(s) with optional viewing windows for instrumentation
(a) (b)
Indoor Materials - sheet steel. Dust and damp protection. Minimum Degree of Protection - IP54.
Outdoor, in Marine Environment
Outdoor Materials : Galvanised steel, Zinc coated steel, Stainless steel, Anodised aluminium, GRP Durable and waterproof construction, with integral sunshade/dripshield. Minimum Degree of Protection - IP55
(c)
Materials : Stainless steel Grade 316, Anodised double wall aluminium, GRP
Durable and waterproof construction, with integral sunshade/dripshield.
Minimum Degree of Protection - IP55
Safety : Minimum Degree of Protection for enclosures shall be as stated in (a) and (b) above.
In all cases the minimum Degree of Protection with door(s) open -IP 41.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
It shall not be possible for contact to be made with any conductor normally live under operational conditions without the prior removal of covers, barriers or shrouds. These covers, barriers or shrouds shall carry suitable DANGER labels.
Locking arrangement : Each door shall have 3 - point locking via single handle, with duplicate keys supplied. For outdoor units such equipment shall be corrosion resistant and with a padlock.
Busbars : Electrolytically tinned, rectangular section, high conductivity hard drawn copper.
Neutral Bar : To be of uniform cross section, rigidly supported, air insulated and identified by phase colours.
Earthing : Electrolytically tinned copper bar. Door, subassembly and gland plate earth bonds to be fitted.
Glanding : Rigid gland plate(s) with space and clearances for the incoming and outgoing cables of an appropriate cross section. For single core cables the gland plates shall be non - magnetic. Distance between gland plate and terminals to be not less than 400 mm.
Labels: General and circuit designation - Black engraving on White plastic laminate. Affixed by screws.
Danger : White on Red engraved plastic laminate or self adhesive, as appropriate.
Miscellaneous: An anti-condensation heater, humidistat controller protected with MCB shall be fitted within the enclosure.
Drawings : For approval - general arrangement/layout, schematic / single line and wiring diagrams.
Incoming Circuit : 3/4 pole ACB/MCCB, or fuseswitch ACB or MCCB to be equipped with thermal and magnetic over current release.
kWH meter for unbalanced load shall be connected through auxiliary HBC fuses and current transformers.
Voltmeter shall be with 7-position selector switch.
Ammeter shall be with 4-position selector switch and current transformers.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
Power Factor (PF) meter shall be installed as part of the incoming circuit.
Outgoing Circuit: Outgoing circuit feeders shall have 3 pole ACB/MCCB or fuse-switches.
16.4.5 Sub Main ( LV ) Distribution Panel
General specifications shall be similar to main LV Distribution Panel. Option for incoming feeders: 3 or 4 pole isolation point with RYB indicating lamps shall be provided.
Unless otherwise specified, kWH and PF meters are not required.
16.4.6 Sub Distribution Boards
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Electrical circuits to each building or building section shall be distributed by means of locally mounted Sub-Distribution Boards (SDB’s).
Generally these shall be of the Triple Pole and Neutral (TPN) type of content, capacity and ratings to suit the area of distribution. (If two feed from different sources, incomers and bus section/bus coupler to be of four poles).
Single Pole and Neutral (SPN) units shall only be permissible subject to Design Specifications.
Distribution boards to be of the load centre, comb bus bar type with ELCB section and Miniature Circuit Breakers (MCB’s) as per DEWA Regulations.
Voltage: 400V 3 Phase 4-Wire 50Hz
Construction: Sheet steel, surface or flush mounting as appropriate, with hinged and lockable, or latchable cover to each compartment.
Dust and damp protecting enclosure with minimum Degree of protection - IP 54 or as detailed in the specific design specification.
Circuit Details: The incoming device shall be an isolating switch. Each circuit, without exception, shall be protected against the effects of over current, short circuit and earth leakage currents.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
Earth leakage protection shall be by means of Residual Current Devices, (RCD’s), i.e. current operated earth leakage circuit breakers (ELCB’s).
Sensitivities shall be as follows:
100 milliamps - Air conditioners, lighting.
30 milliamps - Switch socket outlets and all other circuits.
Labels : Main Label – Black letters on white background, engraved type, affixed by screws (not glued) to the SDB front cover.
Circuit Designation - Each device shall be permanently and indelibly marked with its circuit designation.
In addition, a typewritten or printed directory shall be affixed adjacent to each SDB in a rigid, clear acrylic faced frame.
Safety: Minimum Degree of Protection shall be - IP 41(with doors open).
It shall not be possible for contact to be made with any conductor normally live under operational conditions without the prior removal of covers, barriers or shrouds.
These covers, barriers or shrouds shall carry suitable DANGER labels.
16.4.7 Lighting
Unless otherwise specified, Appendix B, 18.2 shall be referred to for the minimum lighting standard service luminance, Glare Limiting Index for various buildings or processing areas. a)
Emergency Lighting
Lighting luminaries for all emergency and Emergency Exit purposes shall comply with relevant BS or equivalent standards and EHS/Fire Requirements.
Maintained or non-maintained units shall have a minimum duty of three hours duration.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES b)
Lighting Switches
Lighting switches shall be of “grid switch pattern”. For the direct switching of fluorescent and discharge lighting installations, the grid switches shall have a minimum rating of 20A.
16.4.8 Cable Ducts
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The contractor shall supply and install cable ducts, generally as shown on the Drawings.
Cable ducts shall be thick-walled uPVC pipe and to the approval of the Engineer. Ducts shall remain full and clear throughout their lengths. Bends, where necessary, shall be of sufficiently large radius to allow easy drawing-in of cables. Generally, bending radii shall not be less than six times the internal pipe diameters.
Cable ducts shall be installed without joints, except where this is unavoidable due to the installed length exceeding manufacturing standard duct lengths. Joints shall be purpose made and sleeved type. There shall be no internal projections or sharp edges.
Bell mouths shall be provided on each cable duct orifice to avoid damage to cable sheaths.
Each length of cable duct shall be cleaned and dried with the aid of a cloth swab drawn through its length. Draw cords, consisting of a length of nylon rope, minimum diameter of 5 mm, shall be left in each cable duct with sufficient length at each end for the attachment of cables or further draw-wires.
The ducts shall be closed at each end by a hardwood plug, sealed at its periphery with mastic compound. The draw cord shall be attached to an eyelet screwed into the internal face of each hardwood plug. A similar eyelet shall be provided on the outer face of each plug to facilitate removal.
Cable ducts running external to the building foundations shall be haunched in concrete for protection and to prevent sagging. They shall be terminated at their outer ends in concrete haunching.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES 16.4.9 Bath/Shower Room
Unless specifically designed for use in such areas there shall be no switch or switch socket outlet located within these rooms.
All lighting fittings shall be protected from ingress of water with suitable IP rated enclosures/diffusers.
16.4.10 Toilets and Wash Rooms
Switches shall be located remote from hand wash basins and sinks.
Hand driers shall be of the push-button or sensor operated type and supplied via fused flex outlets.
16.4.11 Kitchens and Pantries
Switches and switch socket outlets shall be positioned to avoid accidental damage or danger from water spray and vapour, or other hazards arising from food preparation processes.
All fixed appliances shall have a local means of isolation. All extraneous conductive parts of the kitchen tops shall be adequately earthed as a safety measure.
16.4.12 Water Heaters
A flex outlet of suitable rating shall be located adjacent to the unit and the power connection shall be by heat resisting elastomer flexible cable.
A double pole switch, with neon indicator shall be provided and located adjacent to associated light switches, or other approved position.
16.4.13 Fans
Each unit shall have a separate switch, and controller, if appropriate.
Exhaust fans shall be of automatic shutter type.
16.4.14 Air Conditioners
Each air conditioner shall have local means of isolation. All outdoor located isolators shall be weatherproof with minimum protection of IP65.
For single-phase units of upto 2.5 kW (1.5 Tons) capacity, either
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES a 15A switch socket outlet or 20A double-pole switch, with integral flex outlet, is permissible.
For single-phase units of 3.2 kW (2 Tons) capacity, a local 32A double pole switch shall be provided together with an adjacent fixed flex outlet.
A disconnect switch shall be installed for the larger single phase, and for all three phase units. DEWA Regulations relating to Under Voltage Relay and time-delayed restart facility shall be complied with for all A/C units.
16.4.15 Fire Alarms
Reference shall be made to the EHS/Fire Guidelines.
16.4.16 Hazardous Area
Reference shall be made to the application Design Specifications as supplied by the Engineer.
All electrical equipment designated for use within hazardous zones shall be categorized for use within such areas and shall be subject to the approval of EHS.
16.4.17 High Mast Flood Lighting
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a)
Floodlighting high masts shall be of polygonal tapered steel construction with a lantern height of 30 metres or 50 metres as applicable for the operational requirements.
Floodlighting high masts shall be supplied in sections, of maximum length of 11 metres, for local assembly at site.
Floodlight lanterns and associated control gear shall be attached to a carriage, which, for installation and maintenance purposes, shall be capable of being raised and lowered by means of steel wire ropes and a drum type winch. The winch assembly, together with the incoming power supply and control arrangements, shall be housed within the base compartment. The stainless steel wire ropes (grade 316) and the main interconnecting electrical cables shall run internally within the mast structure.
Floodlighting shall be controlled by time switch, relays and contactors. For duplex fittings 50% illumination shall be
General Description
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES available as security lighting, the remaining 50% of floodlighting on manual command by means of base located pushbuttons.
Note: Where necessary and as indicated on the Drawings a separate and detailed Supplementary Specification for Floodlighting Masts shall be issued by the Engineer. Design shall be supported with lighting calculation.
16.4.18 Street Lighting
a)
General Description
Street lighting columns shall be of the hollow section, polygonal sided, tapered mild steel construction type, with lantern heights as required.
An adjustable double bracket arm shall give an angled disposition to two lanterns, each at an outreach of 2.5 metres from the vertical axis.
Control gear for the lanterns shall be housed in a base compartment accessible via a removable cover.
The complete assembly shall be suitable for long term operation in an Arabian Gulf environment.
Street lighting columns in general shall be of approved make with suitably rated High Pressure Sodium vapour lamps.
b)
The mast structure is to be 20 sided duo-decagon continuously tapered steel, continuously seam welded throughout.
Mast Structure
I)
Mast Construction Base Compartment : Door opening reinforced with welded steel sections of adequate dimensions to permit clear access to internally mounted equipment. Complete with close fitting weatherproof
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES and vandal resistant door having a heavy duty lock. Degree of Protection-IP65. II)
Dynamic Loading
The complete mast assembly shall be designed for a maximum reaction arising from a maximum 3 second wind gust. The design wind velocity shall be 160 kph.
c)
Holding down bolts shall be supplied complete with an anchor plate for casting into foundations.
The manufacturer shall provide all details of recommended foundation design and procedures to allow the foundation work to be carried out.
Holding down bolts are to be of guaranteed performance, high tensile steel and be supplied complete with all nuts and washers, etc.
A precision made steel template, with tubed holes shall be provided to ensure correct vertical and horizontal alignment.
Whereas one (1) complete set of holding down bolts, with anchor plate, shall be required with each mast, the number of templates required shall be adequate to meet the Contract Erection Programme. d)
Metal Protection
The entire mast sections, steel assemblies, subsections and fittings, control gear boxes, control switchgear boxes, etc., shall be hot dipped galvanised internally and externally. e)
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Foundations
Painting and Finish
The following painting specifications shall be applied: I)
Preparation:
Before applying any paint, the external galvanised surfaces shall be thoroughly degreased using an approved cleansing solution. After degreasing, the external surfaces shall be mechanically and manually abraded using rotary wire brushes and medium grade waterproof abrasive paper, to achieve a uniform pattern.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
On completion, the external abraded surfaces shall be rinsed with clean sweet water to remove all loose particles and allowed to dry for 8 hours before the application of paint.
II)
Painting:
According to the latest relevant standards
f) Device Numbering Each structure shall be identified by the application of a stencilled alphanumeric code. Paint : Black acrylic. Character Size : 50 mm high x 30 mm wide. Location : Above base compartment access cover. g) Base Section Shall be designed as per manufacturer’s recommendation and relevant structural and foundation calculation details shall be submitted for approval by CED.
h) Bracket Arm Shall be manufactured according to the latest relevant IEC and British Standards and submitted for approval by CED.
i) Dimensional Data According to the latest relevant IEC and British Standards.
j) Incoming Supply Terminals Shall be sized to cater for short circuit and size of the cable.
k)
Shall be provided with proper protection from vandalism. The tray shall attach to the column via purpose built-in brackets and be dimensioned to allow installation and removal to and from the base compartment through the base aperture with components in place.
Control Gear Tray
l) Ballast The ballast shall be of the hermetically sealed construction type
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES suitable for operation with the specified lamp, supply voltage and at an ambient temperature of +500C. m)
In accordance with local regulations, power factor correction capacitors shall be incorporated into the circuit design so that a power factor not less than 0.95 lagging shall be achieved under lamp running conditions. These shall be suitable for operation with the specified lamp, supply voltage and at an ambient temperature of +500C. n)
Power Factor Correction Capacitors
Igniters
Sealed, electronic igniters shall be installed on the control gear tray. These shall be suitable for long term operations with the specified lamps, ballasts, supply voltage and design ambient temperature.
16.4.19 Electrical Draw Pits a)
b)
Construction
All Electrical Draw Pits and Inspection Chambers shall be constructed as detailed on the drawings and to the approval of the Engineer. Covers
All manhole and pit covers shall be provided as detailed on the drawings and as specified.
16.4.20 Test Data
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IEE Regulations (16th Edition) Appendix D, 18.4 - “Forms of Completion and Inspection Certificates” - shall be submitted for each area of the installation. Specific test results, tabulated to correspond to the appropriate sections, shall accompany each certificate.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES
a)
Electrical Tests
On completion of the installation and prior to its being made “live” for service, the Contractor shall carry out the electrical tests on all sections of the works in the presence of the Engineer and the representative of the local supply authority if required, and all tests shall be carried out in strict compliance with the requirements of the said Authorities Regulations. (i)
Insulation resistance test between conductors and between conductors and earth.
(ii)
Phase sequence (phasing)
(iii)
Earth continuity tests.
(iv)
Earth resistance measurement.
(v)
Verification of polarity.
(vi)
Ring circuit continuity tests.
(vii) Operational tests on all equipment and relays. (viii) ELCB testing. (ix)
Lux level (illuminance) measurements.
(x)
Under voltage relay testing
(xi)
Capacitors and their proper functionality.
(xii) Calibration of indicating instruments. (xiii) Instrument transformers. (xiv) Interlock –if any (electrical and mechanical) (xv) Generator (if any) performance test including primary and secondary part. (xvi) LV Cable testing which includes phasing, conductor resistance and insulation resistance.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES 16.5
WATER
16.5.1 General
All water related installations shall comply with particular requirements of CED and latest General Guidelines of DEWA.
The design of water supply services for the buildings and network development shall comply with relevant CIBSE guidelines, BS-EN guidelines and Institute of Plumbing Guide.
16.5.2 Storage Tanks
The calculation details of water storage tank capacity shall be submitted to CED for approval. Wherever the tank requires storage for both Fire and Domestic consumption, the calculation detail for the same shall also be submitted to CED for approval. For domestic consumption the water storage capacity shall cater for 24 Hrs. requirements.
16.5.3 Meter Room Details:
110
The following Rules and Conditions shall be followed for Water Meters Rooms:•
Carrying out long term maintenance of water meters is to be taken into account while providing new connections.
•
Sufficient space (at least 20 cm.) shall be provided between and around water meters to permit installation, reading, servicing and removal of the meters.
•
Meters shall be installed at a height of 100 – 120 cm from the ground/floor level.
•
The meter room shall be suitable for the technician to stand straight and remove/re-fix the meter easily.
•
The pipes shall be adequately anchored to avoid
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES displacement of the same while removing the meter. •
Meters shall be protected from the risk of damage by vibration induced by the surroundings.
•
Meters shall be protected from the risk of damage by extreme water /ambient temperature and humidity.
•
Water meters and their associated fittings/pipes shall not be part of electrical earthing.
•
No water pump shall be installed upstream or downstream of the meter and sudden variation of flow/pressure shall be avoided.
•
Meter room shall have adequate illumination to read the meter and to carryout the maintenance of the meter easily.
•
Means such as Account. No. & Flat No. plates shall be affixed immediately adjacent to the meter (but not on the meter) for identification.
•
There shall be isolation valves installed before and after the meter to stop water flow from both directions.
•
Both valves shall be fully open while the meter is in service and no control of flow shall be made by regulating the inlet valve.
•
While connecting a new meter or changing a stopped/ defective meter the pipeline shall be thoroughly flushed to remove any dirt.
•
There shall be drain in the meter room to remove the flushed water.
•
Meter room flooring shall be clear from obstacles, even, rigid and not slippery.
•
Water from the meter room should not flow to the passage or other floor areas.
•
The electrical fittings and all other items in the water meter room shall be waterproof.
•
A ‘Water Meter Room’ plate shall be affixed on the door and meters shall be accessible to DEWA staff at any time.
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES 16.5.4 Typical DEWA House Connection Details
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Chapter 3 : Section 16 : TECHNICAL GUIDELINES 16.6
Telecommunications
This service shall be designed in accordance with Etisalat’s or ‘du’s latest Guidelines and to their approval.
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CHAPTER 3 : Section 17 : PROJECT COMPLETION PROCEDURES
114
17.1
Building Inspection for Power and Water Connection:
Upon substantial completion of construction works, there is a need for power and water connections for two areas: •
Some finishes works that need to be carried out under controlled climatic conditions.
•
Testing of fire and sewage pumps to satisfy EHS requirements.
CED has as part of its e-permit system an allowance for a process to issue an NOC to DEWA for power and water connection at this stage. An online request made by the Consultant is checked for completion and if the submission is incomplete in any aspect, the consultant is notified to fill any gaps. An inspection time is then set and carried out.
The outcome of the inspection varies and it ranges from a list of deficiencies to be corrected and a need for another inspection, or a list of minor deficiencies noted to be corrected without a need for re-inspection or the satisfactory completion of the inspection. An NOC to DEWA is then issued and a list of items for correction, if any, is issued to the Consultant for action.
By issuing this NOC, CED assumes no responsibility for any personal injury or damages that might arise as a result of power connections at this stage. The Contractor, under the Consultant’s supervision, shall take all appropriate and necessary safety measures to maintain a safe working environment while the power is available at the terminal point of DB.
With power and water supplies connected, the pending works can proceed and EHS / Fire can be approached for an NOC that is a key requirement for ultimate completion.
17.2
Building Inspection for Building Completion Certificate:
Upon completion of all construction works an online request can be made by the Consultant for final inspection through the epermit system. The request is checked for completion and if the submission is incomplete in any aspect, the consultant is notified to fill any gaps. An inspection time is then set and carried out.
The outcome of the inspection varies and it ranges from a list of deficiencies to be corrected and a need for another inspection, or a list of minor deficiencies noted to be corrected without a need
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CHAPTER 3 : Section 17 : PROJECT COMPLETION PROCEDURES for re-inspection or the satisfactory completion of the inspection.
A Building Completion Certificate is then issued after correction of any deficiencies noted which signals the development readiness for occupation and its compliance with all rules and regulations.
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.1
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Request For Power Supply (‘P’ Form)
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.1
Request For Power Supply (‘P’ Form)
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.1
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Request For Power Supply (‘P’ Form)
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.2
LIGHTING ILLUMINANCE LEVELS
NO.
OPERATIONS
LUX
1.
Operations not requiring accuracy like the ascertainment of large objects.
50
2.
Operations requiring some accuracy like the assembly of machine parts, the grinding of grains and stones and similar primary industrial operations, chambers of steam boilers, sections where the product is put in large containers, equipment storehouses and apparatuses used in semi-accurate operations.
100
3.
Assembly of simple parts like turnery and moulding which do not require accuracy and the test conducted on products and machines and sewing of light coloured clothes, storing of foodstuff, the manufacturing of wooden planks, leather and similar operations.
200
4.
Operations requiring accuracy like turner and lathe works which require average accuracy, and office work, final operations in production and similar operations.
250
5.
Operations which require a great deal of accuracy like the assembly of small parts and accurate turnery and fitter works, the cutting and reshaping of glass, accurate carpenting, office work, drawing and similar operations.
300
6.
Operations requiring extreme accuracy and patience such as tests conducted with extreme accuracy, tests conducted on small or subtle tools and machinery, the manufacturing of precious stones and watches, assembly of printing press letters, weaving of dark coloured clothes and similar operations.
500
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.3 GENRAL PCFC’S NOC CONDITIONS
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.4
ELECTRICAL COMPLETION AND INSPECTION CERTIFICATES (APPENDIX 6 OF IEE REGULATIONS) APPENDIX 6 TO IEE REGULATIONS FORMS OF COMPLETION AND INSPECTION CERTIFICATE
Introduction i.
The forms of Completion, Inspection and Testing required by Part 7 shall be made out and signed by competent persons in respect of the design, construction, inspection and testing of the work.
ii.
Competent persons will, as appropriate to their function under i) above, have a sound knowledge and experience relevant to the nature of the installation undertaken and to the technical standards set down in the Wiring Regulations, be fully versed in the inspection and testing procedures contained in the Regulations and employ adequate testing equipment.
iii.
Completed forms will indicate the responsibility for design, construction, inspection and testing, whether in relation to new work or further work on an existing installation.
iv.
When making out and signing a form on behalf of a company or other business entity, individuals shall state for whom they are acting.
v.
Additional forms may be required as clarification, if needed by non-technical persons, or in expansion, for larger or more complicated jobs.
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CHAPTER 3 : Section 18 : MEP APPENDICES FORMS OF COMPLETION AND INSPECTION CERTIFICATE (as prescribed in the IEE Regulations for Electrical Installations) DETAILS OF THE INSTALLATION
(1.) (see Notes overleaf)
Client: Address:
DESIGN
I/We being the person(s) responsible (as indicated by my/our signatures below) for the Design of the electrical installation, particulars of which are described on Page 3 of this form CERTIFY that the said work for which I/we have been responsible is to the best of my/our knowledge and belief in accordance with the Regulations for Electrical Installations published by the Institution of Electrical Engineers, 16th Edition, amended to (3.) (date . . . . . . . . . .) except for the departures, if any, stated in this Certificate. The extent of liability of the signatory is limited to the work described above as the subject of this Certificate. For the DESIGN of the installation: Name (In Block Letters): For and on behalf of: Address: (2.) Signature
Position:
(3.) Date:
CONSTRUCTION I/We being the person(s) responsible (as indicated by my/our signatures below) for the Construction of the electrical installation, particulars of which are described on Page 3 of this form CERTIFY that the said work for which I/we have been responsible is to the best of my/our knowledge and belief in accordance with the Regulations for Electrical Installations published by the Institution of Electrical Engineers, 16th Edition, amended to (3.) (date . . . . . . . . . .) except for the departures, if any, stated in this Certificate. The extent of liability of the signatory is limited to the work described above as the subject of this Certificate. For the CONSTRUCTION of the installation: Name (In Block Letters): For and on behalf of: Address:
Position:
(2.) Signature
(3.) Date:
INSPECTION AND TEST I/We being the person(s) responsible (as indicated by my/our signatures below) for the Inspection and Test of the electrical installation, particulars of which are described on Page 3 of this form CERTIFY that the said work for which I/we have been responsible is to the best of my/our knowledge and belief in accordance with the Regulations for Electrical Installations published by the Institution of Electrical Engineers, 16th Edition, amended to (3.) (date . . . . . . . . . .) except for the departures, if any, stated in this Certificate. The extent of liability of the signatory is limited to the work described above as the subject of this Certificate.
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CHAPTER 3 : Section 18 : MEP APPENDICES For the INSPECTION AND TEST of the installation: Name (In Block Letters): For and on behalf of: Address:
Position:
I recommend that this installation be further inspected and tested after an interval of not more than . . . . . years (5.) (2.) Signature 3.) Date: 1.
This document is intended for the initial certification of a new installation or of an alteration or addition to an existing installation and of an inspection.
2.
The signatures appended are those of the persons authorised by the companies executing the work of design, construction and inspection and testing respectively. A signatory authorised to certify more than one category of work shall sign in each of the appropriate places.
3.
Dates to be inserted.
4.
Where particulars of the installation recorded herein constitute a sufficient schedule for the purpose of Regulation 514-09-01 further drawings/ schedules need not be provided. For other installations the additional drawings/schedules listed below apply.
5.
Insert here the time interval recommended between periodic inspections. Regard shall be paid to relevant National or Local legislation and reference shall be made to Chapter 13.
6.
The page numbers of each sheet shall be indicated together with the total number of sheets involved.
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CHAPTER 3 : Section 18 : MEP APPENDICES (4) Schedule of additional records. PARTICULARS OF THE INSTALLATION (Delete or complete items as appropriate) Type of Installation New/alteration/addition/to existing installation Type of Earthing (312-03): (Indicate in the box)
TN-C
TN-S
TN-C-S
TT
IT
Earth Electrode:
Resistance ..................................................
ohms
Method of measurement............................. Type (542-02-01) and Location......................
. Characteristics of the supply at the origin of the installation (313-01): Nominal voltage................................volts Frequency..........................................Hz phases................
Number of ascertained determined by by Measured enquiry calculation
Prospective short-circuit current.....................kA Earth fault loop impedance (Ze)..................ohms Maximum demand...................................A per phase Overcurrent protective device - Type BS........................ Rating............................ A Main switch or circuit-breaker (460-01-02): Type BS..... Rating..........A No. of poles (if an r.c.d., rated residual operating current I n...................................mA.) Method of protection against indirect contact: 1. Earthed equipotential bonding and automatic disconnection of supply or 2. Other (Describe)................................................................................ ...... Main equipotential bonding conductors (413-02-01/02, 547-02-01): Size ................mm2 Schedule of Test Results: Continuation................................................................... pages Details of departures (if any) from the Wiring Regulations (120-04, 120-05) .................... Comments on existing installation, where applicable (743-01-01): ..................................
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.5
DEWA - APPLICATION FOR SUPPLY OF ELECTRICITY & WATER
APPLICATION FOR SUPPLY OF ELECTRICITY & WATER I.
DETAILS OF THE CONSUMER: a) b) c) d)
Full Name of Consumer:................................................................................. Nationality:................................................................................................... Identification Reference:.................................................................................. Location / Address of the premises:................................................................. 1. Description of the premises:...................................................................... 2. Plot No................................................................................................... 3. Locality / DM Sector: .......………………/.................................................. 4. DM Community No.:..................................(where plot is located) 5. Name / No. of Road / Street:.................................................................. e) Bill delivery address:.....................P.O. Box:...............Tel:................................ f) Mode of bill delivery, by : Hand ( ) Post ( ) The details of the electrical wiring installation and the water distribution are given in the following sections II & III respectively. I/We, the undersigned hereby apply for the supply of electricity & water for the purpose stated herein and I/we agree to pay for providing the supply at the appropriate rate and scale of charges under DEWA’s tariff in force from time to time. I/We have read and understand and agree to observe and be bound by DEWA’s Terms & Conditions printed overleaf and any amendments made thereto by DEWA from time to time. Signature of Consumer or Authorised Representative………………. Date:.......................... Stamp if applicable:................................. Name and position held: . ............................
II.
DETAILS OF THE ELECTRICAL WIRING INSTALLATION (For use by the ‘E’ Division) a) Details of the wiring installation. Equipment
No
Connected Load Each - Watts Total – k.W.
Details of Premises Type No.
Lights
Flats
Ceiling Fans
Shops
13A Sockets
Show rooms
15A Sockets
Offices
Water Heaters
Warehouses
Air conditioner (A/C)
Villas
Cookers
Garden
Lifts
Factory
Pump-motors
School
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CHAPTER 3 : Section 18 : MEP APPENDICES Labour Accommodation
Chillers Package A/Cs Miscellaneous
Construction Site TOTA L b) Building NOC Reference No. DEWA/E/:......................................................... c) Particulars of Consultants/Contractors:............................................................. 1) Consultant’s name:........................................................ City:................... 2) Electrical contractor’s name:...................................................................... City:.................................................... P.O. Box:.................................. Tel:...................................................... Trade License No.:.......................
d) Application No. / *Existing A/C No.:................................. Date: . .................
e) Nearest A/C No. :....................................(within the Community where plot is located)
f) Type of connection: Permanent / Temporary / Construction / Additional / Extension. g) No. of kWh meters: 1-Phase:...........3-Phase:........C/T (H.V.):........C/T (L.V.):............. h) Installation No. / Approval Reference No. :......................................................
III. DETAILS OF THE WATER DISTRIBUTION (For use by the ‘W’ Division) a) Details of Water requirement: Premises
No
Water Demand Each-Gls / Total / Gls Ltrs / Ltrs
Details of Premises Type
Flat – 1 B/Room
Flats
Flat – 2 B/Room
Shops
Flat – 3 B/Room
Show rooms
Flat – 4 B/Room
Offices
Toilets
Warehouses Villas Garden Factory School Labour Accommodation
Miscellaneous No. of storeys
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Construction Site
No.
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CHAPTER 3 : Section 18 : MEP APPENDICES TOTA L b) No of underground Tanks :.............Capacity:............/.............../.....…….Gls./ Ltr c) No of overhead Tanks : .............. ...Capacity:............/.............../.....…….Gls./ Ltr
d) No of Fire Service Tanks :................Capacity:............/.............../.....…….Gls./
Ltr e) An existing old Building / connection?
(
) Yes
(
) No.
f) Building NOC Reference No. DEWA / W /..................................................... g) Particulars of Consultants / Contractors: 1) Consultant’s name:................................................................................... City:............................... P.O.Box:.....................Tel:................................. 2) Plumbing Contractor’s name:..................................................................... City:............................... P.O.Box:.....................Tel:................................. Trade Licence No.:………………..……………. h) Application No. / *Existing A/C No...................................... Date:................. i) Nearest A/C No :.....................................(within the Community where plot is located)
j) Type of connection: Permanent / Temporary / Construction / * Additional k) No. of Water meters: 15mm(1/2’’).......25mm(1”).......80mm(3”)........100mm(4”)....... 50mm(6”).............200mm(8”)….……..300(12”)..............400mm(16”).............
l) Installation No. / Approval Reference No.:....................................................... DOCUMENTS TO BE SUBMITTED WITH THIS APPLICATION
By Nationals (Landlords): 1. Copy of DM approved site plan / affection plan (as proof of ownership)
Attached(
)
2. Copy of identification documents: ID Card & Passport
Attached (
)
3.
Authorisation letter for National’s representative
Attached ( )
By Other / Contractors : (If consumer under 1.1 above is tenant / Non-National / Employee) 1. Employment certificate
Attached (
2. Landlord’s guarantee (as per prescribed form) / Authorisation letter
Attached ( )
)
3. Copy of passport (including copy of residence visa)
Attached (
)
4. Copy of DM Building Permit (for Temporary / Construction Supply)
Attached (
)
TERMS AND CONDITIONS FOR SUPPLY OF ELECTRICITY & WATER In applying for the supply of electricity & water the Consumer specifically agrees to comply
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CHAPTER 3 : Section 18 : MEP APPENDICES with the following rules and regulations and any further rules and regulations that DEWA may introduce from time to time. 1. REGULATIONS FOR ELECTRICAL WIRING INSTALLATIONS : Rules & Regulations for Electrical installations. Approved Code of Practice and Regulations for Substations are available to consumers and must be observed and complied with at all times. 2. SUPPLY LINES AND EQUIPMENT : DEWA may require the Consumer to provide facilities for and to contribute towards the service charges of supply lines and equipment and the laying and installation of the same as may be required to provide the supply. Such charges shall be payable in advance. The lines and equipment will remain the property of DEWA and may be used to supply other consumers. 3. TESTS, WARRANTY AND IDEMNITY : 1. DEWA may inspect and test all installations before connecting the supply. The Consumer shall inform DEWA well in advance of any new installation or any extension or alteration to any existing installation so that DEWA may conduct further inspections and tests if it deems it necessary. 2. Commencement of the supply does not imply or constitute any warranty by DEWA as to the fitness of the installation or as to whether or not the installation is properly built or suitable for the Consumer’s purpose. The Consumer hereby agrees to indemnify DEWA against any loss or damage arising from any defect in the installation or any use thereof proper or otherwise. 4. ACCESS TO CONSUMER’S PREMISES :
Representatives of DEWA shall be entitled to enter the Consumer’s premises at all reasonable times (save in case of emergency when they may enter at any time) for purposes connected with the supply.
5. MAINTENANCE : 1. The Consumer shall maintain the installation up to the point of supply to the satisfaction of DEWA and shall take all steps necessary to protect and keep safe DEWA’s supply lines and equipment and shall immediately report any defect in or damage to any of DEWA’s lines or equipment. 2. Subject as aforesaid the Consumer shall not carry out any works to or interfere or tamper with the said supply lines and equipment. 3. When three phases are provided for giving electric supply, the distribution of power in the Consumer’s installation should be balanced between all of the Phases as evenly as practicable. 6. INTERRUPTIONS AND FLUCTUATIONS : DEWA may disconnect the supply for the purposes of maintenance, testing or for any other purpose whatsoever connected with the safe or efficient working of the system. DEWA shall not be liable for any loss or damage whatsoever consequential or otherwise suffered by the Consumer as a result of any such disconnection, fluctuation, over-voltage, or loss of one or more phases of the electric supply. 7. METERING :
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CHAPTER 3 : Section 18 : MEP APPENDICES
Meters will be made available to the Consumer provided always that: 1. The Consumer shall pay such service charges in respect thereof as DEWA may from time to time demand: 2. The Consumer shall not interfere nor permit any person other than a representative of DEWA to interfere with meters: 3. The Consumer shall pay to DEWA the service charges of any repairs or replacement of any meters lost destroyed or damaged whether by fire or otherwise: 4. If at any time any metering equipment fails to record consumption or if DEWA’s representative cannot gain access to any meter to record consumption or there has been an error in computing the consumption (something missing) and billed accordingly. 5. Any difference between DEWA and the Consumer as regards the proper operation of a meter or estimated consumption it shall be settled amicably but in the absence of amicable settlement DEWA’s decision shall be final.
9. CHARGES : The service charges for the supply shall be in accordance with DEWA’s tariff in force from time to time and shall be paid by Consumer on demand. 10. SECURITY DEPOSITS :
The Consumer shall provide to DEWA an interest free deposit as security for the payment of the said charges in such amount as DEWA shall determine.
11. DISCONNECTION : 1. DEWA may withhold or disconnect the supply at any time in the event of any breach by the Consumer of any of these terms and conditions or violation of the provisions of Act No.2/94, or any other enforceable law, or in case of any misuse of the supply in a manner that interferes or is likely to interfere with the efficient supply to the Consumer or to any other Consumer. 2. The Cost of disconnection and any reconnection, in addition to any other legal entitlements, which shall be at the discretion of DEWA, shall be borne by the Consumer. 12. LIABILITY OF LANDLORD : 1. The Landlord shall remain wholly liable for the performance of all of these terms and conditions until termination in accordance with clause 12 and notwithstanding any disposal by lease or licence of the premises supplied to any third party and whether or not such third party has successfully applied for a supply of electricity & water by separate connection or transfer. 2. The right to the supply may not be assigned by the Landlord. 13. TERMINATION : Should either the Consumer or DEWA wish to terminate the supply each shall give the other not less than seven (7) days’ written notice unless otherwise warranted. DEWA shall be entitled to continue to charge the Consumer until the effective date of such notice. 14. FORCE MAJEURE : The obligations of each of the parties hereto shall be suspended for the period of and
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CHAPTER 3 : Section 18 : MEP APPENDICES 18.6
ENFORCEMENT & EXTENSION OF DEWA’S WIRING REGULATIONS Enforcement & Extension of DEWA’s Wiring Regulations Consumer Safety against Electrical Hazards REQUIREMENT
POWER FACTOR (P.F.) OF CONSUMER INSTALLATIONS Overall System: P.F. shall be 0.9 (Lagging), 1.0
GENERAL GUIDELINES Incorporation of P.F. Correction/ improvement capacitors: Capacitor banks with suitable automatic stepcontrol incorporated within or external to the Control-Panel.
1
Central A/Cs, Chillers/Refrigeration Plants, Industrial Plants, etc.:
2
Individually connected capacitor, incorporated Package & Split A/Cs, Machines, Pump- within Control-Panel or Capacitor Banks with Motors and other Machines: suitable automatic step-control for a group of machines.
3
‘Window’ type A/C units:
Individually connected capacitor, incorporated within Control-Panel or Capacitor Banks with suitable automatic step control for a group of machines.
4
Discharge Light Fittings:
Individually connected capacitor, incorporated within.
REQUIREMENT UNDER VOLTAGE (U.V.) RELAYS WITH TIMER ON A/C UNITS U.V. Relay settings: Cut-off at 75% of supply voltage within 0.1 sec. Auto-reset between 5-10 minutes, with timer.
GENERAL GUIDELINES Incorporation of Auto-reset U.V. Relays with Timer:
130
1
Central A/Cs, Chillers, excluding AHU Fan-motors:
U.V. relays with timer, incorporated within the Control Panel.
2
Package & Split A/Cs, excluding AHU Fan-motors:
U.V. relays with timer, incorporated within the Unit/its Control Panel.
3
‘Window’ type A/C units:
U.V. relays with timer, incorporated with necessary contractor/s within Distribution Board/s for a group of units.
CHAPTER 4: GIS & DRAWING OFFICE SERVICES
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CHAPTER 4 : Section 19 : GENERAL Civil Engineering Department of Ports, Customs and Free Zone Corporation provides a variety of services such as: (1)
Engineering Consultants to all Business Units of Dubai World.
(2)
Issue Building Permits for most of the new developments under Dubai World.
(3)
Help Free Zone Authorities in engineering activities.
GIS and Drawing Office Section of Civil Engineering Dept, henceforth referred as GDO in this document, plays an important role in the functioning of the department. Some of the key responsibilities of GDO are the following: (1)
Maintain and update all maps and drawings in digital hard-copy format, supporting the paperless office environment.
(2)
Issue Lease Drawings to clients leasing properties from Free Zone authorities and input and maintain facilities data.
(3)
Issue No Objection Certificates (NOC) for construction activities within areas under Dubai World jurisdiction.
This document highlights the various standards followed by GDO in terms of data maintained and documents received from clients, to acquaint the customers with the services and facilitate their interaction with CED.
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CHAPTER 4 : Section 20 : COORDINATE SYSTEM STANDARDS (PROJECTION SYSTEM) Map projections transform a 3D surface (earth) to a 2D plane (map). The projection of a map uses mathematical formulae to relate spherical coordinates on the globe (latitude, longitude) to flat, planar co-ordinates. The Dubai Local Transverse Mercator projection system, with WGS84 as the datum, has been recommended as the standard for the input and storage of spatial data. The following are the Projection parameters for spatial data: Projection:
Transverse Mercator
Longitude of Origin
55:20:00:00 d:m:s
Latitude of Origin
0:00:00.000 d:m:s
False Easting
500,000.000 m
False Northing
0.000 M
Scale Factor along Longitude of Origin
1.0000
Geodetic Datum:
WGS84
All spatial data stored within CED systems should adhere to the above mentioned coordinate system.
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CHAPTER 4 : Section 21 : DATA EXCHANGE CED provides geographic data at times to other departments/business units and external organizations and accepts such data from many such organizations. To ensure that any incoming data is easily integrated into the existing databases, CED follows certain standards on data exchange formats. Data that is sent out of CED is bound by certain restrictions to ensure that any such data is sent only to legitimate entities. 21.1
Data Exchange Formats
CED can exchange geographic vector data with external agencies in any of the following formats: 1. Microstation Design file 2. AutoCAD dwg file 3. ESRI Shape file 4. Mapinfo Interchange Format 5. Oracle Object model The data provided by CED will always conform to the coordinate system standards and other standards as explained in this document and CED expects all geographic data provided by external agencies to conform to the same standards. 21.2
Data Exchange Mechanisms
CED provides • • •
data in any of the following media: CD-ROM DVD-ROM e-mail attachments
Data sent out from CED is always accompanied by a document transmittal form, which is prepared by the staff member who is in charge of providing such data. The person who receives the data signs on a duplicate copy of the document transmittal form and is returned to CED as a proof of accepting the data. Document Transmittal form includes a clause prohibiting the receiver from sharing the data received with third parties. A sample Document Transmittal form is shown in Appendix A, 28.1.
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CHAPTER 4 : Section 22 : WEB APPLICATIONS GIS Data is made available through some custom made applications which are accessible to the outside world through internet/intranet. Each such application is explained in the following sections. 22.1
Map Central
This is an intranet portal, which links to all available web applications. It also lists the various outputs available from CED GDO and provides an introduction to the various services provided by CED GDO. This can be accessed by anyone having access to the Dubai World corporate intranet by the following address: http://mapcentral/mapcentral/index.htm 22.2
PCFC Orthophotos
This site showcases the historical and current Aerial Photographs of Port and Free Zone Areas available with the GDO. A casual visitor of the site can map the development growth visually over a period of years whereas the current information can be used by the serious visitors for day-to-day engineering and planning related activities This is a restricted site which requires a username/password to access. Users needing access to this site should contact the GDO. The URL to access this site is: http://mapcentral/ orthophoto/ 22.3
JAFZA EMap (External)
This internet application is an interactive query systems designed for the JAFZA and Port visitors who would like to view the information on the companies operating in JAFZA. Users can search companies by name, activities or country of origin, can locate facilities, landmarks and PCFC departments etc. on map, and can generate map based Driving Directions to reach a specific company or any other location in JAFZA and Port areas. In addition general information on sample facilities offered by JAFZA is also provided on the site. This site is accessible to all thru the URL: http://emap.jafza.ae/emap 22.4
JAFZA EMap (Internal)
This intranet application is designed keeping in view the regular information requirements of the Sales and Marketing personnel of JAFZA and can be used as a comprehensive tool for supporting their decision making. In addition to the S&M personnel, JAFZA e-map can also be explored by the authorized JAFZA and PCFC users for day-to-day information needs in an easy to use manner. Some of the facilities offered by this application are: •
Locating a Facility by Address
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CHAPTER 4 : Section 22 : WEB APPLICATIONS • • • •
Locating Facilities of a Client Locating a Leased Building Checking latest Occupancy Status Map Generating Occupancy Status Reports
Access to this site is restricted to those who are given an access password. Access is provided by JAFZA. The URL of this site is: http://mapcentral/ newemap/
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CHAPTER 4 : Section 23 : LEASE DRAWINGS Lease drawings are prepared for those business units where properties are leased. This drawing generally forms part of the legal agreement between the business unit that leases property and the client who is the lessee. This is an A4-size drawing showing the layout of the facility that is leased with reference to its surroundings. There are mainly four layouts used to prepare drawing. The lease drawing contains mainly the following. a.
The facility that is leased (plot, office or warehouse) highlighted, with dimensions of its sides.
b.
Facility IDs of all the leased facility and surrounding facilities.
c.
Benchmark location marked with its geographic coordinates, which is normally the road intersection nearest to the facility that is leased (in cases of plots)
d.
Index map showing the whole free zone with the location of the leased facility highlighted.
e.
In cases of offices and warehouses, index map showing the plot containing the office or warehouse that is leased and its surroundings
f.
List of facilities included in the lease with Facility IDs, Area of Facilities, Road-Opening
g.
North Arrow showing the orientation of the drawing
h.
Scale bar showing the scale at which the drawing is prepared
i.
Revision history showing changes to the drawing, if any, since the time the first version was prepared.
j.
Title block containing the following information: Name of the company with its operating name, Drawing Reference Number, Date on which drawing is prepared, Name of the staff member who prepared the drawing, Scale, Initials of the supervising staff member who checked the drawing.
k.
A block showing the department name and contact details of the department that prepared the drawing.
l.
Logo, name and contact details of the business unit that leases the facility.
Please refer to Appendix B, 28.2 for a sample lease drawing.
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CHAPTER 4 : Section 24 : NOC DRAWINGS STANDARDS No Objection Certificates (NOC) are issued by CED to clients requesting services from service authorities such as DEWA–Electricity, DEWA-Water, ETISALAT etc. Generally services from the service authorities are available for all Lessees. Clients requiring such services request the concerned authority, who in turn will request NOC from CED to provide the required service. Upon receipt of such requests, CED will study each case and if the request is found to be conforming to CED standards, will issue an NOC to the requested job. NOCs are normally a set of pages, as follows: (1) Approval Letter. (2) Standard NOC conditions and regulations (3) Drawing showing the affected area with the proposed development highlighted. The drawing contains the following: •
Key Plan showing the affected location on a small scale map
•
Drawing Title – Project details, client name, plot number, NOC Ref. Number, Legend & standard notes
Samples of the documents are shown in Appendix C, 28.3.
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CHAPTER 4 : Section 25 : SURVEY BASE STATIONS
CED provides a wide network of control stations within the territories of PCFC, especially within Jebel Ali Free Zone. These are used as the reference points for any ground survey done. These are clearly marked on the ground as monuments. The locations of these survey stations are carefully selected in such a way that coordinates of any points of the project areas can be accurately established with minimal efforts by surveyors. The details of the survey stations are available from CED on request.
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CHAPTER 4 : Section 26 : GLOBAL POSITIONING SYSTEM (GPS) The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS works in any weather conditions, anywhere in the world, 24 hours a day. GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. GPS receivers take this information and use triangulation to calculate the user’s exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user’s position. A GPS receiver must be locked on to the signal of at least three satellites to calculate a 2D position (latitude and longitude). With four or more satellites in view, the receiver can determine the user’s 3D position (latitude, longitude and altitude). GPS doesn’t usually give the kind of accuracy that is required for surveys. For survey accuracy, a technology called Differential GPS (DGPS) is used. DGPS uses a stationary GPS receiver to calculate the difference between its actual known position and the position as calculated by their received GPS signal. The “difference” is broadcast as a local FM signal, allowing other GPS receivers to “fix” the signal for greatly improved accuracy. GPS technology is very effectively used within PCFC project areas for fast and accurate survey results. CED uses its own base-station for providing correction for differential GPS, which can be used by anyone who needs to do survey works within Jebel Ali Free Zone. Following are the technical details of CED’s GPS base station: Base Station Coordinates in WGS 84. Latitude
: 24 57 23.44493 N
Longitude
: 55 03 17.35954 E
Ellipsoidal Ht. : -6.324 m Frequency
: 463.750 MHz
Station Index
: 10
Transmission Baud Rate format: Trimtalk 450s @ 9600 bps Broadcast Format : CMR+ Please refer to Appendix D, 28.4 for more details and for the specifications of the rover unit that can be used for differential Survey.
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CHAPTER 4 : Section 27 : DIGITAL DATA DELIVERY STANDARDS 27.1
CED Projects / Review
All PCFC design & construction projects are monitored by CED. CED requires consultants to submit project related documents before starting, during different stages and at the completion of the project. This section identifies the requirements for submitting such documents. 27.2
General Requirements
•
All documents should be submitted in PDF format (portable document format).
•
A list of all submitted documents should be provided as a Microsoft Excel Sheet in digital format.
•
Documents shall be combined in a single polished PDF file and arranged in such a way as listed in the document and drawing list required for each stage of submission as listed below.
•
Drawings created in PDF shall be in their original/intended plotting paper scale.
•
There should be no file security restrictions on submitted files.
•
Bookmarks shall be created to facilitate navigation, directing browsers to their main category or discipline for drawings. For reports/documents, their ‘table of contents’ should be created in the bookmarks.
•
In order to facilitate review, all resubmitted documents shall be accompanied with the ‘reply’ of the previous submission, if applicable.
•
Each comment in the previous submission should be replied to using the Adobe Acrobat/Reader and can be submitted as a PDF or FDF file.
There are four stages in a project when documents need to be submitted viz. Preliminary study, Preliminary design, Final design and Tender Documents. Submission requirements are different at each stage of the project. For each stage, documents need to be submitted for review and if there are comments from CED, documents will need to be resubmitted. Once all issues are resolved, a final set of documents should be submitted for CED records. The following sections outline the requirements at various stages. 27.3
Preliminary Study
For review – PDF format (and other native application format as required). Approved for records – PDF format and other native application format i.e. dwg, word, excel etc.
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CHAPTER 4 : Section 27 : DIGITAL DATA DELIVERY STANDARDS 27.4
Preliminary Design
For review – PDF format (and other native application format as required). Approved for records – PDF format and other native application format i.e. dwg, word, excel etc. 27.5 Final Design • Volume I – Tendering and Contract Conditions • Volume II - Specifications • Volume III - Bill of Quantities • Volume IV - Drawings • Volume V – Soil Investigations • Structural Calculation • Other Calculations i.e. A/C, Drainage etc. For review – a single polished PDF file per ‘Volume’, attach excel file of BOQ filled up tables, structural calculations design parameters etc. Approved for records – PDF format and attach in PDF file other native application format i.e. dwg, word, excel, structural calculation design parameters etc. 27.6
Tender Documents
•
Volume I – Tendering and Contract Conditions
•
Volume II - Specifications
•
Volume III - Bill of Quantities
•
Volume IV - Drawings
•
Volume V – Soil Investigations
For review – a single polished PDF file per ‘Volume’, attach excel file of BOQ filled up tables etc. Approved for records – PDF format and attach in PDF file other native application format i.e. DWG, word, excel, etc. 27.7
As-Built Drawings
All tender and construction drawings should be revised to ‘As Built’ status. The consultant/contractor should contact CED and request drawing numbers to be used for the compilation of the ‘As Built’ drawings. All digital drawings shall be renumbered as in the following example:
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CHAPTER 4 : Section 27 : DIGITAL DATA DELIVERY STANDARDS a. b. c.
Construction/Contract drawing number and title: A01 – Location Plan Project Title: “P123JA – Building” As Built Drawing Number and Title: P123-01 Location Plan. The new ‘As Built’ drawing number (i.e. P123-01) should be marked on the drawing
List of drawings should be submitted as an ‘excel’ sheet in line with the format below:
AS BUILT DRAWING NUMBER
(PROJECT NUMBER & TITLE) DRAWING TITLE/ DESCRIPTION
RELATED WORKING DWG. NO.
P123-00
LIST OF DRAWINGS
G-01
P123-01
LOCATION PLAN
A-01
SECTION H
P123-02 P123-03
As Built drawings will have to be systematically arranged by creating folder/sub-folders for each different category and should be submitted in a CD/DVD-ROM with the following documents: a) Excel sheet containing a list of drawings. b) DWG file in AutoCAD 2000 format of all ‘as built’ drawings including its plot style table (CTB) file. c)
DWG file in AutoCAD 2000 format of the combined topography, services etc. drawings, in DLTM coordinates
d) List and As Built drawings in PDF (portable document format) format, as follows: i)
All lists and drawings shall be combined in a single polished PDF file arranged as listed in the drawing list. If it is not feasible to combine all documents into one single PDF file, documents can be created as separate PDF files, one for each category such as Architectural, Structural etc.
ii) Drawings created in PDF shall be in their original/intended plotting paper scale. iii) There should be no file security restrictions. iv) Bookmarks shall be created to facilitate navigation, directing
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CHAPTER 4 : Section 27 : DIGITAL DATA DELIVERY STANDARDS browsers to their main category or discipline. v)
Documents shall be signed and stamped digitally (by the consultant/contractor) certifying their compliance with the contract and specifications.
27.8
Operations and Maintenance Manual
At the completion of any construction project of PCFC, the consultant/ contractor submits an Operations & Maintenance manual (O & M manual) to CED. The O & M manual contains project’s information on engineering plant installed, operating requirements, maintenance instructions and schedules. This consist of the description of works, list of materials and equipment suppliers, equipment operating and maintenance manuals, planned maintenance schedule for the works, spare parts list, testing and commissioning results, equipment guarantees and related ‘as built’ drawings and/or as stated in the project’s contract documents. 27.8.1 O & M Manual Final Submission Requirements A complete set of softcopy arranged as stipulated in the contract specification in portable document format (PDF) in CD/DVD-ROM as per the following guidelines
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•
All documents and drawings shall be combined in one (whenever possible) PDF file and arranged in such a way as listed in the table of contents of the manual.
•
All scanned documents shall be converted to searchable text using the “OCR” function while preserving any images there in.
•
Documents and drawings created in PDF shall be in their original/ intended printing/plotting paper scale.
•
No file security restriction.
•
Bookmarks shall be created as per the table of contents of the manual to facilitate navigation, directing browsers to their main category or discipline.
•
CAD dwg format of all related drawings shall be attached.
•
Documents shall be signed and stamped digitally (by the consultant/ contractor) certifying their compliance with the contract and specifications.
•
In case of opting to organize the PDF document into different file/s, documents shall be systematically arranged categorically into folders and/or sub-folders
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CHAPTER 4 : Section 27 : DIGITAL DATA DELIVERY STANDARDS Number of Digital (CD ROM) Copies •
One set for Civil Engineering Department
•
One set for Maintenance Department
•
One set for Technical Department (for DP World projects only)
•
One set for PCFC EHSS Department
•
One set for PCFC Fire Department
•
One set for Marine Department (for related projects only)
•
One set for End User
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CHAPTER 4 : Section 28 : GIS DRAWING OFFICE APPENDICES 28.1 Appendix A: Document Transmittal Form CIVIL
e NGINEERING DEPARTMENT
PLEASE RETURN TO CIVIL ENGINEERING DEPARTMENT
No.
P.O. BOX : 17000, DUBAI, UNITED ARAB EMIRATES
Internal External
DOCUMENT TRANSMITTAL To
Date: Our Ref : Your Ref :
For Attention of
Project:
Dear Sirs, We enclose / are sending you under separate cover the undernoted document/s. Please acknowledge receipt via e-mail. No. of
Rev. Document / Drawing No.
Description Remarks
Soft Copy
THE STATUS OF THE ABOVE DRAWINGS IS INDICATED IN THE FINAL COLUMN (SEE KEY BELOW). 1
Approved
6
Information
2
7
As Requested
3
Examined & Returned with Comments Advance Information
8
Final Records
4
Forward Planning
9
Design
5
Approval or Comments
10
Distribution
Cc:
Note: Information supplied are merely indicative. It's the recipient's responsibilty to verify the accuracy of the information.
Ports, Customs & Free Zone Corporation Civil Engineering Department
P.O. Box 17000, Dubai, United Arab Emirates Tel : +971-4-8819444, Fax : +971-4-8815227
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CHAPTER 4 : Section 28 : GIS DRAWING OFFICE APPENDICES 28.2 Appendix B: Sample Lease Drawings
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CHAPTER 4 : Section 28 : GIS DRAWING OFFICE APPENDICES 28.3 Appendix C: Sample NOC Documents
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CHAPTER 4 : Section 28 : GIS DRAWING OFFICE APPENDICES
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CHAPTER 4 : Section 28 : GIS DRAWING OFFICE APPENDICES
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CHAPTER 4 : Section 28 : GIS DRAWING OFFICE APPENDICES 28.4 Appendix D: GPS Rover Details
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