p103-Stts-gec-Asi-ms-ele-003_method Statement for Installation of Lv Distribution Panels(Mdb,Capacitor Bank,Vfd,Smdb,Db)

STTS WIDEBODY AIRCRAFT FACILITY METHOD STATEMENT FOR INSTALLATION OF LV DISTRIBUTION PANELS

METHOD STATEMENT FOR INSTALLATION OF LV DISTRIBUTION PANELS(MDB, Capacitor Bank, VFD, SMDB & DB) Document No: P103-STTS-GEC-ASI-MS-ELE-003

REV.

000

DATE

27-05-18

DESCRIPTION

GENFOCUS

Issued for Approval

DOCUMENT No.

P103-STTS-GEC-ASI-MS-ELE-003

ASI/WSP

PREPARED

APPROVED

QA/QC

PM

REV

DATE

000

27-05-2018

Page 1 of 6

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1.0 PURPOSE

1.1

The purpose purpose of this Method Statement is to describe describe step by step the procedure for the installation of LV Panels. (MDB’s (MDB’s,, Capacitor Banks,VFD’, Banks,VFD’,SMDB’s, DB’s ETC.) DB’s ETC.)

2.0 SCOPE

2.1

The scope scope of this Method Statement is to define the sequence and methodology methodology for the installation of various LV Panels.

3.0 TOOLS AND RESOURCES

3.1

Electric Drill

3.2

Hydraulic Trolley

3.3

Hand tools

3.4

Level

3.5

Crimping Tool

3.6

Measuring Tape

3.7

Multimeter

3.8

Megger

4.0

RESPONSIBILITIES

4.1

PROJECT MANAGER

4.1.1

Is having full authority and overall responsibility to manage, supervise and control the works. Coordinate with the Engineers and the Employer Representative for execution of the contract scope of works. Implement the Project Quality Systems to the satisfaction of the project requirements. Review changes and variations to evaluate impact of those on time and schedule.




4.2.1

Coordinate with the QA/QC Engineer to advice for the areas to be raise for inspection.

4.2.2

Coordinate the entire site activities required for the installation installation of Low Voltage Panel. Panel is according to the project specification, manufacturer data sheet and approved shop drawing.

4.2.3

Liaise with Site Representatives of the Employer Representative, Engineers and Contractor and coordinate safety procedures with Site Engineers an d Supervisors.

4.2.4

Coordinate and explain the work to carry out to the Supervisors.

4.2.5

Ensure the compliance of works with the related approved Quality Control Procedure and co-ordinate with the QA/QC Engineer to advice for the areas to be raise for inspection.

4.3

QA/QC ENGINEERS

4.3.1

Inspecting the materials on site as per approved materials submittal and raise MIR within 24 hrs prior to installation on site.

4.3.2

Inspection for the installation as per approved drawings and approved test plans and checklists.

4.3.3

Preparing test forms for testing on site and updating results accomplished.

4.3.4

Issuing inspection request within 24 hrs before the actual inspection.

4.3.5

Responsible for the assurance of Quality control, method statement and inspection test plan.

4.3.6

Controlling the shop drawings flow on site.




4.4.1

Ensure health and safety of the site personnel.

4.4.2

Ensuring PPE available with site personnel.

4.4.3

Good housekeeping on site.

4.4.4

Environmental concerns are addressed.

4.4.5

Responsible for implementation and assurance of the safety and environmental requirements (JSEA).

5.0 PROCEDURE 5.1

Installation of Main Distribution Board (MDB) and Capacitor Bank (CB)

5.1.1 Ensure that the work area is ready and safe to start the installation of MDB’s and Capacitor banks. 5.1.2 Ensure approved documents like shop drawings, SLD, electrical room layout and load schedules are available with the installation team. 5.1.3 Ensure all civil and finishing works are completed for the area of installation and released/ cleared by civil section to proceed on for further work of shifting, positioning of MDB’s and Capacitor banks. 5.1.4 Shift the particular panels and associated accessories to the work place with crane or wheelbarrows. Packing will be removed removed at the position of installation. installation. 5.1.5 Check the label / marking to ensure the right board before installation. 5.1.6 Minimum clearance of 750 mm shall be maintained at rear side of the panel so that easy access for termination of cables and other maintenance works can be carried out. 5.1.7 Mark the fixing position of the panels as per shop drawing, co-ordinate with other equipment and services. 5.1.8 Fix the MDB with proper metal plugs and bolts. Ensure the installation installation is straight and




5.1.9 Suitable Knock-out at the bottom of the MDB shall be used for Incoming and Outgoing cable entry. 5.1.10 All knockouts made on the panel covers shall be filed and provided with grommets to avoid sharp edges and unused knockouts shall be covered. 5.1.11 Termination of Cables shall be done using approved cable glands and lugs. Glanding and connections should be done only by competent technicians / electricians. 5.1.12 All panel boards and switch gears shall be provided with proper earthing connections as per approved shop drawings. 5.1.13 Complete wiring & terminations related to BMS monitoring (if applicable). 5.1.14 Manufacturer recommendations are to be followed for all relay, timer and other breake bre akerr curren cu rrentt setting sett ings, s, as per the total tot al connec con nec ted loads loa ds and the discrim dis crim inat i on study of the system. 5.1.15 Check and ensure that cables route is completed and free from damage of sharp edges. Ensure no excessive stress is applied on the cable which may damage the insulations and its functionality. 5.1.16 Identification labels of approved type shall be fixed on all panel boards. 5.1.17 Co-ordinate and ensure provision of Chequer plates on the open trenches inside the LV Room. 5.1.18 Ensure that all Cable entries and other openings of Electrical / LV Room, Wall / Floor are carried out with proper approved sealant. 5.2 5. 2

Installation of VFD, Sub Main Distribution Boards and Final Distribution Boards

5.2.1 Ensure all civil and finishing works are completed for the area of installation and released/ cleared by civil section to proceed on for further work of shifting, positioning of VFD’s, VFD’s, SMDB’s and DB’s.




5.2.3 Check the label / marking to ensure the right board before installation. 5.2.4

Ensure the floor/ wall surface is ready to install the Distribution Boards.

5.2.5

Mark the fixing position of the Distribution Boards as per shop drawing, coordinate with other equipment and services.

5.2.6

For VFD panels, the exact location of the panel and fixing holes to be marked based on approved shop drawing keeping panel in place and will be fixed in an approved manner.

5.2.7

Height of the Distribution Boards shall be maintained as per approved shop drawings so that easy access for termination of cables and other maintenance works can be carried out.

5.2.8

Suitable knock-out knock-out at the top of the DB’s shall be used for Incoming cable entry.

5.2.9

Fix the frame of the DB’s with proper metal plugs and bolts. Ensure the installation is straight and levelled. If surface mounted, supporting system to comply with manufacturer’s manufacturer’s recommendations.

5.2.10 Connection of cable trays with all Distribution Boards shall be done rigidly with proper supports. 5.2.11 All knockouts made on the panel covers shall be filed and provided with grommets to avoid sharp edges and unused knockouts shall be covered. 5.2.12 Termination of cables shall be done using approved cable glands and lugs Glanding and connections should be done by only competent technicians/electricians. 5.2.13 Organize the cables / wires neatly with cable ties. 5.2.14 Double check the connections by tightening the terminations. 5.2.15 Doors of all SMDB's, DB's are to be earthed with flexible connection. 5.2.16 Clean the termination and breaker cubicles with vacuum cleaner and hand brush to clean the dust and small metal pieces fallen during cable cutting and terminating

p103-Stts-gec-Asi-ms-ele-003_method Statement for Installation of Lv Distribution Panels(Mdb,Capacitor Bank,Vfd,Smdb,Db)

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