GIS 06-311 - Procurement of Cathodic Protection Goods and Se

Document No.

GIS 06-311

Applicability

Group

Date

20 November 2006

Guidance on Industry Standard for Procurement of Cathodic Protection Goods and Services

GIS 06-311

BP GROUP ENGINEERING TECHNICAL PRACTICES

Copyright  2005, BP Group. All rights reserved. The information contained in this document is subject to the terms and conditions of the agreement or contract under which the document was supplied to the recipient’s organization. None of the information 20 November 2006 GIS 06-311 contained in this document shall be disclosed outside the recipient’s own organization Guidance on Industry Standard for Procurement Cathodic Protection Goods and Services without the prior written permission of Director of Engineering, BP Group,ofunless the terms of such agreement or contract expressly allow.

Foreword This is the first issue of Engineering Technical Practice (ETP) BP GIS 06-311. This Guidance on Industry Standard (GIS) replaces heritage documents from the merged BP companies as follows:

British Petroleum PTA CP-CP-ANOD-P PTA CP-CP-00-A

Corrosion Protection—Cathodic Protection—Sacrificial High-Potential Magnesium Anode—Procurement Specification. Corrosion Protection—Cathodic Protection—Acceptable Vendors Specification.

Amoco A CP-CP-00-A A CP-CP-ANOD-P A CP-CP-AOP-P A CP-CP-AOS-P A CP-CP-GAOP-E

Corrosion Protection—Cathodic Protection—Acceptable Vendors Specification. Corrosion Protection—Cathodic Protection—Sacrificial High-Potential Magnesium Anode—Procurement Specification. Corrosion Protection—Cathodic Protection—Anodes for Offshore Pipelines—Procurement Specification. Corrosion Protection—Cathodic Protection—Anodes for Offshore Structures—Procurement Specification. Corrosion Protection—Cathodic Protection—Design of Galvanic Anodes for Offshore Platforms—Engineering Specification.

Copyright  2006, BP Group. All rights reserved. The information contained in this document is subject to the terms and conditions of the agreement or contract under which the document was supplied to the recipient’s organization. None of the information contained in this document shall be disclosed outside the recipient’s own organization without the prior written permission of the Director of Engineering, BP Group, unless the terms of such agreement or contract expressly allow.

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GIS 06-311 Guidance on Industry Standard for Procurement of Cathodic Protection Goods and Services

Table of Contents Page Foreword.......................................................................................................................................... 2 1.

Scope...................................................................................................................................... 2

2.

Normative references.............................................................................................................. 2

3.

Terms and definitions.............................................................................................................. 2

4.

Symbols and abbreviations.....................................................................................................2

5.

Basic selection criteria............................................................................................................. 2 5.1. General........................................................................................................................ 2 5.2. Galvanic (sacrificial) systems.......................................................................................2 5.3. Impressed current systems..........................................................................................2

6.

Initial market review................................................................................................................. 2

7.

Identification of requirements..................................................................................................2 7.1. General........................................................................................................................ 2 7.2. Invitations to bid........................................................................................................... 2 7.3. Contract/orders............................................................................................................ 2 7.4. Deviations and alternatives..........................................................................................2 7.5. Lead times.................................................................................................................... 2 7.6. Spare parts................................................................................................................... 2

8.

Accountabilities and roles........................................................................................................2 8.1. Specifying engineers....................................................................................................2 8.2. Procurement personnel................................................................................................2 8.3. Vendors........................................................................................................................ 2 8.4. Electrical personnel......................................................................................................2

9.

Design review and approval....................................................................................................2

10.

Manufacture and test (or service provision).............................................................................2 10.1. General........................................................................................................................ 2 10.2. Material identification....................................................................................................2

11.

Handling, packing, transportation, and storage.......................................................................2

12.

Technical documentation.........................................................................................................2

13.

Quality assurance................................................................................................................... 2

Annex A (Normative) Materials Data Sheets....................................................................................2 A.1. Power supplies........................................................................................................................ 2 A.1.1. Transformer rectifier – air cooled..................................................................................2 A.1.2. Transformer rectifier – oil cooled..................................................................................2 A.1.3. Transformer rectifier – switch mode.............................................................................2 A.1.4. Solar power.................................................................................................................. 2 A.1.5. Thermoelectric generators (TEG).................................................................................2

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A.1.6. Closed cycle vapour turbo generator (CCVT)...............................................................2 A.2. Impressed current anodes.......................................................................................................2 A.2.1. Mixed metal oxide on titanium substrate– probe/ tube/ wire/ ribbon/ mesh..................2 A.2.2. Silicon iron with chrome – solid/ tubular.......................................................................2 A.3. Galvanic anodes..................................................................................................................... 2 A.3.1. Aluminium – flush mount, stand-off, and bracelet.........................................................2 A.3.2. Magnesium – ingot/ ribbon...........................................................................................2 A.3.3. Zinc – flush mount, stand-off, ribbon and bracelet........................................................2 A.4. Cables - PVC/PVC, XLPE/PVC, XLPE/PVC/SWA/PVC, HMWPE, KYNAR/HMWPE, EPR/CSPE.............................................................................................................................. 2 A.5. Reference electrodes.............................................................................................................. 2 A.5.1. Copper/copper sulphate (Cu/CuSO4) – permanent/ portable........................................2 A.5.2. Silver/silver chloride (Ag/AgCl) – permanent/ portable.................................................2 A.5.3. Zinc – permanent......................................................................................................... 2 A.6. Junction boxes - GRP, stainless steel, carbon steel (painted), galvanized steel enclosures....2 A.7. Test facilities – Post and flush mounted – polycarbonate, concrete, metallic...........................2 A.8. Isolation devices/ surge protection & earthing.........................................................................2 A.8.1. Monolithic isolating joint...............................................................................................2 A.8.2. Gasket isolation kit.......................................................................................................2 A.8.3. Spark gaps................................................................................................................... 2 A.8.4. Polarisation cell............................................................................................................ 2 A.8.5. Polarisation cell replacement – solid state....................................................................2 A.8.6. Over voltage protector – solid state..............................................................................2 A.9. Testing equipment................................................................................................................... 2 A.9.1. Digital multimeter and clamp meter..............................................................................2 A.9.2. Earth resistivity tester and insulation tester (radio frequency)......................................2 A.9.3. Close interval potential (CIP) survey equipment...........................................................2 A.9.4. Direct current voltage gradient (DCVG) equipment......................................................2 Annex B (Informative) BP concession request form.........................................................................2 Bibliography..................................................................................................................................... 2

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1.


Scope This GIS provides guidance on procurement of materials and services for cathodic protection applicable to buried and immersed metallic structures including, but not limited to, pipelines, offshore structures, storage tanks, well casings, firewater and sea water pump caissons, fixed and floating production facilities, and internal submerged compartments.

2.

Normative references The following normative documents contain requirements that, through reference in this text, constitute requirements of this technical practice. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this technical practice are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

American Society for Testing and Materials (ASTM) ASTM A694

ASTM A518

Standard Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service. Standard Specification for Corrosion-Resistant High-Silicon Iron Castings.

Det Norske Veritas (DNV) DNV RP-B401

Recommended Practice Cathodic Protection Design.

International Electrotechnical Commission (IEC) IEC 60143 IEC 60228 IEC 60502 IEC 60529

Series Capacitors for Power Systems. Conductors of insulated cables. Power cables with extruded insulation and their accessories for rated voltages from 1kV (Um=1,2kV) up to 30kV (Um= 36kV). Degrees of protection provided by enclosures (IP Code).

International Organization for Standardization (ISO) ISO 9000 ISO 9001 ISO 10005 ISO 13879 ISO 13880 ISO/TS 29001

Quality management systems - Fundamentals and vocabulary. Quality management systems – Requirements. Quality management. Guidelines for quality plans. Petroleum and natural gas industries. Content and drafting of functional specifications. Petroleum and natural gas industries – Content and drafting of a technical specification. Petroleum, petrochemical and natural gas industries - Sector-specific quality management systems - Requirements for product and service supply organizations.

NACE International (NACE) NACE RP0387

Metallurgical and Inspection Requirements for Cast Sacrificial Anodes for Offshore Applications.

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NACE TM0190

3.

Impressed Current Test Method for Laboratory Testing of Aluminium Anodes.

Terms and definitions For the purposes of this GIS, the following terms and definitions apply: Concession request A written application by the Vendor requesting BP (or designated agent) to accept at least one action or item that deviates from agreed specifications as a consequence of non-conformance. Functional specification Document that describes the features, characteristics, process conditions, boundaries and exclusions defining the performance and use requirements of the product, process or service [ISO 13879]. Goods Equipment or materials used for cathodic protection purposes. Invitation to bid A solicitation from BP (or designated agent) for a Contractor to bid. Bid shall mean a tender, proposal or quotation submitted by the Contractor. Note that Invitation to Tender (ITT), Request for Proposal (RFP) and Request for Quotation (RFQ) all have different meanings; for the purposes of this document, Invitation to Bid encompasses all these terms. Non-conformance A non-fulfilment of a requirement within an agreed specification for design, manufacture, construction, intervention, test, or commissioning. Quality Assurance: Part of quality management focused on providing confidence that quality requirements will be fulfilled. [ISO 9000]. Quality plan Document specifying which procedures and associated resources shall be applied by whom and when specific to a project, product, process or contract. [ISO 9000]. Note: Guidance for the production of Quality Plans is given in ISO 10005. Specifying engineer The Cathodic Protection Engineer or Corrosion Discipline Engineer responsible for identifying functional and technical requirements for cathodic protection Goods and services. Technical authority An engineer with specific discipline expertise appointed by the Engineering Authority. The primary role of a Technical Authority is to manage technical integrity within their designated engineering discipline or activity by ensuring the safe and consistent application of Company and regulatory codes and standards and good engineering practices. Technical specification Document that defines technical requirements to be fulfilled by the product, process, or service in order to comply with the functional specification. [ISO 13880].

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Vendor Manufacturer or supplier contracted to supply cathodic protection Goods or services on behalf of BP. Throughout this document, the words will, may, should, shall and must, when used in the context of actions by BP (or designated agent) or others, have specific meanings as follows: Will Normally used in connection with an action by BP (or designated agent) rather than by a Vendor. May Used if alternatives are equally acceptable. Should Used if a provision is preferred or recommended. Shall Used if a provision is considered mandatory to follow recommendations of this document. Must Only used if a provision is a statutory requirement.

4.

Symbols and abbreviations For the purpose of this GIS, the following symbols and abbreviations apply: a.c.

Alternating current

AgCl

Silver chloride

CCVT

Closed cycle vapour turbo generator

CIPS

Close interval potential survey

CuSO4

Copper sulphate

d.c.

Direct current

DCVG

Direct current voltage gradient

HMWPE

High molecular weight polyethylene

PCR

Polarisation cell replacement

PSCM

Procurement and supply chain management

PVC

Polyvinyl chloride

TEG

Thermo electric generator

TR

Transformer rectifier

XLPE

Cross-linked polyethylene

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5. 5.1.


Basic selection criteria General Refer to GP 06-31. Two distinct types of cathodic protection systems exist; these being: 

Galvanic (sacrificial) anode systems.



Impressed current systems.

Galvanic systems provide cathodic protection current by the preferential corrosion of the anode alloy, which is more electronegative in the galvanic series with respect to the carbon-steel (C-steel) structure to be protected (the cathode). Anodes are usually directly attached to the C-steel structure with an electrically continuous mechanical connection, such as a bolt or weld. Impressed current systems use inert, non-corroding anodes. As the anodes are inert and do not provide their own protection current through corrosion of the alloy, an external d.c. power source is required. As anodes are not directly connected to the structure, external cabling is required to complete the electrical circuit between anode, cathode and external power source. 5.2.

Galvanic (sacrificial) systems

5.2.1.

General

a.

b. 5.2.2.

5.2.3.

There are basically three main options that shall be considered for use in galvanic cathodic protection systems. These being: 1.

Aluminium.

2.

Magnesium.

3.

Zinc (secondary alternative to aluminium and magnesium).

Galvanic systems should be provided for systems in which life spans of 5 – 10 years are required for onshore structures, and between 20 – 30 years for offshore structures.

Aluminium

a.

Aluminium anodes should be primarily considered for aqueous and offshore applications.

b.

Aluminium anodes shall not be used for potable water storage applications due to the toxic nature of the corrosion products.

c.

Aluminium anodes may be considered for use in onshore buried and freshwater applications if water resistivity does not exceed 10 Ω-m (33 Ω-ft), as passivation is likely to occur beyond this value.

Magnesium

a.

Magnesium anodes should predominately be considered for buried onshore applications and also for non-saline aqueous applications in which resistivity is between 5 – 150 Ω-m (16 – 490 Ω-ft). Note Due to the self-corrosive nature of magnesium, a practical anode life of between 10 – 12 years is likely regardless of theoretical anode mass calculation.

b.

For resistivity below 5 Ω-m (16 Ω-ft), alternative alloys such as aluminium and zinc should be considered.

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Magnesium anode alloys are available in two grades which give two distinct output potentials. c. 5.2.4.

Anodes should be pre-packaged in cotton bags containing moisture retentive, low resistivity back fill, containing hydrated gypsum, bentonite, and sodium sulphate.

Zinc

a.

Zinc anodes may be considered as a secondary alternative to Aluminium and Magnesium if their individual limitations for use may preclude them for selection. Zinc anodes may be used for aqueous and offshore applications, although they may be used in buried applications if conditions are suitable subject to their limitations.

b.

Zinc anodes should not be used if water resistivity exceeds 30 Ω-m (100 Ω-ft), and shall not be used in environments in which operating temperature will exceed 50°C (122°F). Zinc anodes are not subject to a minimum resistivity value restriction.

5.3.

Impressed current systems

5.3.1.

General

a.

5.3.2.

The following anode materials shall be considered for use in impressed current cathodic protection systems: 1.

Mixed metal oxide (MMO) on titanium substrate.

2.

Silicon iron with chrome addition.

3.

Other alternatives to MMO and silicon iron anodes (rarely used).

b.

Unlike galvanic anodes, external power is provided to the impressed current anode, and hence they may operate in much higher electrolyte resistivity (approx. 500 – 1 000 Ω-m (1 640 – 3 280 Ω-ft)), the limiting factor being the driving voltage of the external power supply and the overall circuit resistance.

c.

For buried applications, the anodes should be surrounded with a low resistivity carbonaceous backfill either contained within a C-steel canister or loose filled around the anode within its excavated hole.

d.

Relevant specifications are given in clause A.2.1 – A.2.2 for MMO and silicon iron anodes.

Mixed metal oxide (MMO) on titanium substrate

a.

MMO anodes should be chosen, as they are technically superior and cheaper to install than the other commonly used impressed current anodes in most applications. MMO anodes are predominately used in onshore applications, in both aqueous and buried environments; however, MMO anodes are commonly found on ship’s cathodic protection systems. MMO anodes have proven performance with over twenty years experience operating at very high current densities and in extreme conditions. In comparison with silicon iron, MMO anodes are:  

Lighter (a typical 5 Amps MMO anode weighs less than 1 kg (2,2 lb) compared with up to 50 kg (110 lb) for an equivalent solid silicon iron anode). Cheaper and easier to transport and install (due to weight saving).



Not prone to long term cable breakage (due to lower weight).



Not easily broken (Silicon iron anodes are brittle and prone to breakage).



Not prone to “end effect” wastage.

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

Not subject to high consumption rates. Typical anode consumption rates are as follows: MMO – 0,000 5 kg/amp-year (0,001 lb/amp-year). Silicon iron with chrome – 0,45 kg/amp-year (1 lb/amp-year).

These figures must be taken into account when calculating minimum anode mass required for the project assigned design life, particularly with respect to silicon iron anodes. It is however common practice to include an additional contingency of 25% to overall current demand over the minimum theoretical value. b.

5.3.3.

MMO anodes shall not be used in environments containing the halides of bromine, fluorine, or iodine as these are detrimental to the operation of the anode and may lead to premature failure.

Silicon iron with chrome addition

Silicon iron anodes should be considered as a secondary alternative choice to MMO but limitations to the points raised above. Silicon iron anodes have been the traditional choice since the inception of the impressed current system in the 1940s. 5.3.4.

Alternatives to MMO and silicon iron anodes

Guidance should be sought from EPTG whenever projects/operations consider utilising these anodes. Other impressed current anode types such as graphite, magnetite, and platinised titanium may also be encountered, but are rarely used. MMO and silicon iron anodes are most common to the industry and have a more diverse application range. Platinised titanium is basically used for aqueous applications. Magnetite and graphite anodes are used for buried onshore applications only, and suffer many of the disadvantages of silicon iron due to their similar brittle nature.

6.

Initial market review Specifying engineers are responsible for ensuring market reviews are undertaken for goods or services in their specific areas of responsibility. a.

PSCM should be consulted before undertaking market reviews and under most circumstances the expectation is that the specifying engineers will work closely with PSCM for the conduct of market reviews. Once the main functional and technical requirements are known for critical equipment it is necessary to determine whether suitable equipment provision already exists and whether it can be supplied or supported locally. There is no process associated with the initial market review, which simply involves informal contact with potential vendors.

b.

In addition to the information available from vendors, similar projects should be reviewed, BP (or designated agent) should be consulted, and external databases on equipment performance should be reviewed.

c.

As well as identifying potential vendors, the market review should determine whether the functional and technical requirements could be met with: 1.

Standard-design – this is equipment that is already in use and has an established performance record.

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2.

Modified-design – this is standard design equipment with a limited number of project specific modifications.

3.

New-design – this is required if standard equipment cannot be modified or upgraded and new equipment/service is required specifically for the project. For standard-design and modified-design equipment, the expected output at this stage is an outline design or description of potentially suitable equipment that has already been supplied to, or proposed for, other projects. If a new-design is required, the expected output is a conceptual design that could be developed and supplied within the time frame available. Based on findings during the market review, the bidders or sole source (as applicable) will be identified.

7. 7.1.

7.2.

Identification of requirements General a.

The specifying engineer shall liaise closely with the procurement representative to ensure relevant technical, quality, quantity, schedule, and delivery requirements are properly addressed.

b.

If cathodic protection goods and/or services are procured directly by BP, procurement shall comply with applicable BP policies and procedures and be conducted through the Business Unit’s PSCM Team or other BU approved process.

Invitations to bid a.

The specifying engineer shall identify functional requirements and known technical requirements for the cathodic protection system. Guidance for producing functional specifications is given in ISO 13879.

b.

Known technical requirements should be given by using the relevant Material Data Sheet, see Annex A.

c.

For the purpose of an Invitation to Bid, the specifying engineer shall ensure that the purchasing representative receives the following: 1.

Scope of work.

2.

Functional specification and technical requirements including sparing philosophy.

3.

Quality assurance including technical documentation requirements.

4.

Delivery requirements, e.g. timing and location.

d.

The non-technical information for an Invitation to Bid, such as Instructions to Tenderers, Form of Tender, Terms & Conditions, Tax Information Guidelines, Warranties, etc., will be provided by the procurement representative.

e.

The following statements, or statements identifying the same requirements, should be included in the Invitation to Bid and subsequent contract/order:

f.

1.

The vendor shall not deviate from contractual requirements unless authorisation for a change or deviation has been agreed in writing with BP (or designated agent).

2.

The vendor shall collaborate jointly with BP (or designated agent) to identify and agree technical and commercial communication routes and methods/formats to be used.

The contract will identify the type(s) of document required, e.g., Quality Plan, material certificates, etc. The onus is on the vendor to contact BP (or designated agent) if guidance is required for document content. Page 11 of 48

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7.3.


g.

A pre-production meeting shall be arranged when requested by BP (or designated agent). In any event, the vendor shall contact BP (or designated agent) well in advance of the proposed production schedule to determine pre-production meeting requirements.

h.

BP (or designated agent) reserves the right to perform inspections, appraisals or audits of the vendor’s facilities, systems, procedures or working practices; this shall also extend to subcontractors if applicable. Access to the works shall be afforded by the vendor and subcontractors for such activities.

Contract/orders a.

The final commitment documents (Purchase Orders, Service Orders, Contracts, etc.) need to identify the technical specifications or technical requirements that are to apply in order to comply with the stated functional requirements. Note: Technical specifications are normally produced by a bidder in response to the Invitation to Bid or following a subsequent evaluation and clarification process.

b.

7.4.

7.5.

Technical requirements shall be agreed between the specifying engineer and vendor before manufacture/supply or service provision. The specifying engineer should endeavour to determine and agree technical requirements pre-contract/ order.

Deviations and alternatives a.

The vendor may be permitted to offer a technically superior item for consideration, providing that it provides an improvement over the minimum standard laid out in the specification or data sheet.

b.

Accepted deviations and alternatives shall be signed off by the responsible specifying engineer or appointed technical authority.

Lead times Due consideration must be made for long lead time items, such as transformer rectifiers and other power supply systems, which are custom built devices, with an approximate lead time of 8 to 14 weeks. More standard items such as sacrificial anodes and cable may be available ex-stock or are usually available within 4 weeks from order.

7.6.

Spare parts Due consideration should be made for necessary spare parts. If no specific requirements exist, these would normally include the following:

8. 8.1.

a.

Start-up and commissioning spares.

b.

2-years operating spares.

c.

Insurance spares.

Accountabilities and roles Specifying engineers a.

Specifying engineers shall be accountable for developing functional specifications, for acceptance of the final equipment design (including material selection) and for the final acceptance of the goods and/or service.

b.

Major steps to fulfil this accountability shall include, but are not limited to, the following:

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8.2.


1.

Performing a market review (see clause 6), liaising with other projects, EPT, and vendors to identify possible equipment, materials and designs.

2.

Establishing, reviewing and approving functional and technical requirements with vendors prior to finalizing the design. Obtaining schedules for all goods and services.

3.

Establishing vendor bid lists, coordinating with procurement representatives to manage bid solicitation package, evaluating bids and recommending vendors.

4.

Reviewing and approving vendors’ quality plans, exceptions and concession requests, as appropriate including participation in pre-manufacturing and/or pre-inspection meetings to ensure that vendors deliver quality expectations/ requirements.

5.

Conducting periodic audits, reviewing non-conformance records of vendors and maintaining a sufficient level of BP (or designated agent) presence during manufacturing, installation and testing as well as ensuring the final documentation package is compiled and forwarded in line with requirements identified by contract/order.

Procurement personnel Personnel used for procuring cathodic protection materials or services shall be accountable for administering all aspects of the tender and purchasing process to deliver Goods that meet technical, quality, and schedule requirements. Major steps to fulfil this accountability shall include, but are not limited to, the following:

8.3.

a.

Assisting the specifying engineer with the initial market review and coordinating the prequalification process in liaison with the responsible specifying engineer.

b.

The preparation, compilation, and issue of Invitations to Bid and commitment documents liaising with PSCM to ensure compliance with all BP procurement policies and procedures and the specifying engineer to ensure all technical, quality assurance and schedule requirements are included.

c.

Non-technical evaluation of the tenders/quotations.

d.

Establishing or amending existing Contract, as necessary, to satisfy the level of technical/quality requirements for the goods and services.

e.

Managing the shipping process to ensure delivery of correct goods to the correct location on the required dates.

Vendors a.

BP (or designated agent) shall ensure that vendors are accountable for delivering goods and services in compliance with agreed specifications and contract/order terms, using the vendor’s systems (including quality plans), which are reviewed, revised as necessary, and approved by BP to ensure compliance with BP policies, guidelines and requirements.

b.

The key steps to fulfil this accountability shall include, but are not limited to, the following: 1.

Ensuring appropriate resources, personnel, systems, processes, procedures and quality plans are in place to deliver goods in accordance with contract/order requirements; this includes compliance with requirements and expectations for HSE and quality.

2.

Providing a point of contact for contact with BP (or nominated agent) and subcontractors ensuring that quality plans are reviewed/approved and audited by BP (or nominated agent) in accordance with the agreement.

3.

Ensuring that their staff are aware of, and adhere to, contract/order requirements, including HSE and quality expectations and ensuring BP-approved quality plans are fully executed.

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8.4.

9.


4.

Performing and documenting inspection and testing activities in accordance with the BP (or designated agent) approved quality plans including identification, documentation and reporting of non-conformances.

5.

Ensuring goods and services are delivered to the agreed specifications and other requirements of the contract/order. Deviations should be directed through the relevant BP personnel.

Electrical personnel a.

The vendor shall employ, directly or indirectly, competent electrical personnel who shall be suitably certificated for the electrical testing operations that they will undertake on power supply systems such as TRs or similar.

b.

Electrical personnel shall hold the appropriate and current level of certification for the appropriate electrical test methods.

Design review and approval a.

Before manufacture, the final design and associated technical requirements, inclusive of drawings and schedule, shall be agreed and approved by the responsible specifying engineer.

b.

The final design and technical requirements shall be accepted by BP (or nominated agent) before the review of the vendor’s quality plan.

10. Manufacture and test (or service provision) 10.1.

General BP (or nominated agent) should request a monthly progress report from the vendor. If short delivery periods (typically less than 4 weeks) are expected, a weekly progress report should be negotiated with the vendor.

10.2.

Material identification

10.2.1.

General

Due consideration shall be made by the specifying engineer regarding any specific marking, nameplate or tagging requirements for the goods. If no specific requirements exist, the vendor may propose his own in-house standard by means of a nameplate drawing supplied to the purchasing representative for review and acceptance. 10.2.2.

Concession requests

a.

Following commencement of manufacture, concession requests (see Definitions) may only be made in exceptional circumstances.

b.

The vendor shall discuss with the specifying engineer any proposal to submit a concession request. If the specifying engineer agrees that the request can be considered, the vendor shall submit the request using a standard BP concession request form; see Annex B.

c.

A concession request is not required for authorisation to perform normal in-process repairs or rework, providing that the agreed requirements permit such repairs or rework.

d.

Accepted concessions (deviations) shall be signed off by the specifying engineer or appointed technical authority.

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10.2.3.

10.2.4.


Control of nonconforming goods

a.

The vendor shall ensure that any goods not meeting contract requirements are identified and controlled to prevent their unintended use or delivery. The controls for dealing with nonconforming goods should be defined clearly in the vendor’s quality management system.

b.

The vendor shall deal with nonconforming items by taking any of the following actions: 1.

Reject the non-conforming items.

2.

Take steps to eliminate the non-conformance within specification constraints, e.g., by repair.

3.

Accept the goods following a purchaser concession; see clause 10.2.2.

c.

The vendor shall maintain records of non-conformances and details of subsequent actions.

d.

The vendor shall take action to eliminate the cause of non-conformances in order to prevent recurrence.

BP surveillance

At BP’s request, the vendor shall allow access to BP (or designated agent) for the surveillance of manufacturing, test and inspection activities at the vendor’s works. If applicable, and should BP (or designated agent) request it, the vendor shall also arrange access for the surveillance of manufacturing and inspection activities performed by the vendor’s subcontractor’s works.

11.

Handling, packing, transportation, and storage a.

The specifying engineer shall consider any special requirements with regards to handling and storage requirements, which are required for individual items.

b.

The vendor shall provide any special handling and storage protection procedures for the items. Where no special requirements exist, BP (or designated agent) shall specify the minimum requirements expected from the vendor.

12. Technical documentation a.

Technical documentation requirements, inclusive of the various technical document submissions to be made by the vendor and the related actions required by BP (or designated agent) representative, shall be clearly defined in the contract/ order. In addition, normative documents and reports applicable to processes, products, tests or services shall be identified in the vendors’ Quality Plans.

b.

Requirements and submissions shall be considered and clearly defined for the following (as applicable): 1.

Design documents/ drawings.

2.

Quality plans.

3.

Operator qualification records.

4.

Progress/ status reports.

5.

Non-conformance reports/ certificates of conformance/ concession requests.

6.

Material certification/ inspection/ dimensional reports/ test reports/ inspection release notes.

7.

Manuals for assembly/ installation/ operation/ process/ maintenance.

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c.


BP (or designated agent) shall approve the technical documentation packages submitted by the vendor before the release of the goods for shipment.

13. Quality assurance a.

The vendor’s quality assurance system shall be in compliance with either ISO/TS 29001 (API Q1) or ISO 9001.

b.

Responsibility for quality assurance shall rest with the vendor who shall prepare and implement a Quality Plan for the systematic control of construction, inspection and testing. The Quality Plan shall define inspections and tests and the sequence in which they are to be performed during fabrication and the level of involvement for the vendor’s quality control/inspection personnel, third-party inspection personnel, and BP (or designated agent).

c.

The vendor’s Quality Plans shall provide assurance that the functional and technical requirements of the contract/ order will be fulfilled.

d.

The Quality Plan shall be submitted to BP (or designated agent) and approval obtained (including approval of any revisions) prior to commencement of work.

e.

The level of inspection required shall be based on the criticality assessment of the particular item. For example, a transformer rectifier would normally require third party inspection and/or factory acceptance test, whereas a document review of vendor in-house test data and procedures and certificates may be sufficient for a lesser item such as cable.

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Annex A (Normative)

Materials Data Sheets A.1.

Power supplies

A.1.1.

Transformer rectifier – air cooled

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20 November 2006


DATA SHEET TRANSFORMER RECTIFIER (TR) – AIR COOLED ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP.

Permanent power supply for Cathodic Protection system As per assigned project specification As per assigned project specification As per assigned project specification

CLASSIFICATION & SERVICE MODEL TYPE ENCLOSURE SECURITY LOCATION DEGREE OF PROTECTION CLASSIFICATION DIMENSIONS MOUNTING TYPE

Vendor to state Air Cooled 2 mm (0,08 in) galvanized C-steel Padlock facility Outdoor Ingress Protection rating IP65 Hazardous or non-hazardous as per project specification Vendor to provide As per assigned project specification

DC CHARACTERISTICS OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT CONTROL

CONTROL MODULES CYCLIC TIMER

As per project requirements, or Vendor to provide As per project requirements, or Vendor to provide Manual or automatic thyristor control with adjustable current limit. Additional secondary tap to be included for low current operation. Inductive/capacitive filter on d.c. output for smoothing. Removable (plug-in type) Electronic (0,6 seconds – 60 minutes) with independently variable ON & OFF times.

RECTIFIER CHARACTERISTICS TYPE

Silicon thyristor

AC CHARACTERISTICS INPUT VOLTAGE AC FREQUENCY

As per project requirements (Volts, phase, number of wires) As per project requirements (Hertz (Hz), +/– tolerance)

PROTECTION CIRCUITRY INCOMING AC RECTIFIER DC OUTPUT

Thermal magnetic breaker, Vendor to specify rating High speed fuses, Vendor to specify rating Fused, Vendor to specify rating

METERS TYPE/ ACCURACY SCALES ANCILLARY ITEMS CABLE ENTRIES OIL EARTHING POINT SUNSHADE LIFTING LUGS BREATHER TEMPERATURE GAUGE

Analogue or digital, +/– tolerance Vendor to provide (Volts, Amps) Bottom entry – Removable gland plate Vendor to specify External Vendor to specify 4 No. Silica Gel Vendor to specify

IDENTIFICATION NAME PLATE/TAG PLATE

As per project assigned requirements

PAINTING PREPARATION SYSTEM FINISH COLOUR

As per project assigned requirements 2 layer coating system as a minimum As per project assigned requirements

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DATA SHEET TRANSFORMER RECTIFIER (TR) – AIR COOLED INSPECTION & TESTING AC RECTIFICATION INSULATION TEST VOLTAGE PRESSURE TEST NO LOAD/ FULL LOAD HEAT RISE (24 HRS) SHORT CIRCUIT

100% to IEC 60143 100% to IEC 60143 100% to IEC 60143 100% to IEC 60143 100% to IEC 60143 100% to IEC 60143

SCHEMATIC DIAGRAM

Included inside door

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A.1.2.


Transformer rectifier – oil cooled

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20 November 2006


DATA SHEET TRANSFORMER RECTIFIER (TR) – OIL COOLED ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP.



Vendor to state Oil Cooled 2 mm (0,08 in) galvanized C-steel Padlock facility Outdoor Ingress Protection rating IP65 Hazardous or non-hazardous as per project specification Vendor to provide As per assigned project specification

DC CHARACTERISTICS OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT CONTROL

CONTROL MODULES CYCLIC TIMER

As per project requirements, or Vendor to provide As per project requirements, or Vendor to provide Manual or automatic thyristor control with adjustable current limit. Additional secondary tap to be included for low current operation. Inductive/capacitive filter on d.c. output for smoothing. Removable (plug-in type) Electronic (0,6 seconds – 60 minutes) with independently variable ON & OFF times.


Silicon thyristor


As per project requirements (Volts, phase, number of wires) As per project requirements (Hertz, +/– tolerance)


Thermal magnetic breaker (Vendor to specify rating) High speed fuses (Vendor to specify rating) Fused (Vendor to specify rating)


Analogue or digital, +/– tolerance Vendor to provide (Volts, Amps) Bottom entry – Removable gland plate Vendor to specify External Vendor to specify 4 No. Silica Gel. Vendor to specify


As per project assigned requirements.



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DATA SHEET TRANSFORMER RECTIFIER (TR) – OIL COOLED INSPECTION & TESTING AC RECTIFICATION INSULATION TEST VOLTAGE PRESSURE TEST NO LOAD/ FULL LOAD HEAT RISE (24 HRS) SHORT CIRCUIT


SCHEMATIC DIAGRAM


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A.1.3.


Transformer rectifier – switch mode

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DATA SHEET TRANSFORMER RECTIFIER (TR) – SWITCH MODE ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP.



Vendor to state Air Cooled 2 mm (0,08 in) galvanized C-steel Padlock facility Outdoor Ingress Protection rating IP65 Hazardous or non-hazardous as per project specification Vendor to provide As per assigned project specification

DC CHARACTERISTICS OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT CONTROL CYCLIC TIMER

As per project requirements, or Vendor to provide As per project requirements, or Vendor to provide Switch mode power module (s), manual or automatic control Electronic (0,6 seconds – 60 minutes) with independently variable ON & OFF times.


Switch mode power module(s)


As per project requirements (Volts, phase, number of wires) As per project requirements (Hertz, +/– tolerance)


Thermal magnetic breaker (Vendor to specify rating) High speed fuses (Vendor to specify rating) Fused (Vendor to specify rating)


Analogue or digital, +/– tolerance Vendor to provide (Volts, Amps) Bottom entry – Removable gland plate Vendor to specify External Vendor to specify 4 No. Silica Gel Vendor to specify


As per project assigned requirements



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DATA SHEET TRANSFORMER RECTIFIER (TR) – SWITCH MODE INSPECTION & TESTING AC RECTIFICATION INSULATION TEST VOLTAGE PRESSURE TEST NO LOAD/ FULL LOAD HEAT RISE (24 HRS) SHORT CIRCUIT


SCHEMATIC DIAGRAM


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A.1.4.


Solar power DATA SHEET SOLAR POWER UNIT

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP. TECHNICAL DATA BATTERY SIZING BATTERY TYPE SYSTEM AUTONOMY

RELIABILITY AND AVAILABILITY CONSTRUCTION DATA SOLAR ARRAY

CHARGE CONTROLLER

CHARGE CONTROLLER (CONTINUED) INVERTERS

Remote power solution for Cathodic Protection system As per assigned project specification As per assigned project specification As per assigned project specification State of charge to be at least 20%, and daily depth of discharge to not be more than 15% Lead-acid, Voltage regulated lead-acid or nickel-cadmium Support for average continuous load for a period of 5 days in the event of little or no solar resource. 5 day period to be from fully charged battery (100% state of charge) to a 20% state of charge level at the end of the 5th day. System to have a 99,7% calculated reliability, utilising standard industry accepted reliability calculations. Shall comprise of a suitable number of series and parallel connected solar modules to produce the nominal output specified. Provision shall be made to prevent partial shading of the solar array or failure of a single solar module from effecting the total solar array output, e.g. by means of blocking diodes, or a charge controller with multiple inputs. Frame mounted, constructed from corrosion resistant material, and suitable for installation at the site. The structure shall be designed for tilting for optimum absorption of solar energy, and creating a self-cleaning effect of the surfaces during rain showers. A single solar module must be easily replaceable, and the total construction designed to withstand a wind speed of 150 km/h (93 mph). Shall provide as a minimum; Overcharge protection for the batteries by switching off the solar array when batteries are fully charged Charge voltage set point(s) compensation for temperature changes of the battery Battery protection by switching off the load, if the voltage drops below a minimum specified level Prevention of overnight discharge of the batteries through the solar module Solar module inputs and battery connections must be protected against reverse polarity Electrical overload protection for outputs Local indicator of sub-array status (connected/disconnected) Local indicator of low battery voltage/ load disconnect Local indicator of sub-array status (connected/disconnected) Local indicator of low battery voltage/ load disconnect Local indicator of high battery voltage Minimum efficiency ≥ 85% at full load for single and three Shall be of sine wave type Inverter line regulation ≤ 0,5% Inverter frequency regulation ± 0,1% To include protective circuitry for over voltage, thermal protection, and short circuit protection Shall be capable of automatically disconnecting from the battery when battery low voltage is achieved

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DATA SHEET SOLAR POWER UNIT Minimum efficiency 90% Load/Line regulation ± 0,1% Peak to Peak output ripple ≤ 1% Adjustable output range from nominal to ± 10% Minimum degree of protection of IP31 if mounted within a shelter, or minimum of IP56 if mounted externally in accordance with IEC 60529 Interconnecting cables shall be cross-linked polyethylene (XLPE) insulated, galvanised C-steel wire armoured (or braided for sizes up to and including 10 mm²) and PVC over sheathed Earthing cables shall be PVC sheathed, coloured yellow/green, for both underground and above ground use. Conductors shall be a minimum cable cross section of 6 mm² between enclosures and extraneous metallic objects.

DC TO DC CONVERTERS

ENCLOSURES CABLES AND ACCESORIES

INSPECTION AND TESTING

A.1.5.

Insulation test applied for 1min to specified circuits Functional test to ascertain the correct function of all measuring instruments, alarms and indicators, and protection and controls Site Acceptance Test

Thermoelectric generators (TEG) DATA SHEET THERMOELECTRIC GENERATORS (TEG)

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP. SPECIFICATION DATA TYPE FUEL TYPE FUEL CONSUMPTION (RATING DEPENDENT) FUEL PRESSURE (RATING DEPENDENT) OUTPUT POWER RATING OUPUT POWER FORMAT CATHODIC PROTECTION MODULE

AREA CERTIFICATION ENCLOSURE DIMENSION RANGE (RATING DEPENDENT) WEIGHT RANGE (RATING DEPENDENT) MAINTENANCE INTERVAL

Remote power solution for cathodic protection system As per assigned project specification As per assigned project specification As per assigned project specification Solid state thermoelectric generating set Propane, butane, natural gas Natural gas, 2,1 – 48,0 m3/day (74 – 1 700 ft3/day) Propane, 3,0 – 76,0 litre/day (0,8 – 20 gal/day) 103 – 1 724 kPa (15 – 250 psi) 21 – 500 W dependent on application required DC power at 6,7 – 48 V dependent on application required. Variable resistor to control output current Optional auto potential control module in 200, 300, 500 W versions with 012 or 0-24 V d.c. outputs. Split current package to allow one generator to supply two Cathodic Protection loads if required Optional Class 1, Division I and Division II, Group D Lockable, weather proof in Stainless Steel, requiring no additional shelter 347 x 335 x 449 mm to 1 410 x 1 410 x 2 290 mm 18 – 680 kg Annually

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A.1.6.


Closed cycle vapour turbo generator (CCVT) DATA SHEET CLOSED CYCLE VAPOUR TURBOGENERATOR (CCVT)

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP. SPECIFICATION DATA TYPE FUEL TYPE OUTPUT POWER RATING OUPUT POWER FORMAT DC POWER LOAD REGULATION AREA CERTIFICATION CONTROL INTERFACE MAINTENANCE INTERVAL SYSTEM LIFE

Remote power solution for Cathodic Protection system As per assigned project specification As per assigned project specification As per assigned project specification Hermetically sealed Rankine cycle generating set Natural Gas (offshore), Liquefied Petroleum Gas, Liquefied Natural Gas, kerosene, jet fuel, diesel fuel 200 – 4 000 W dependent on application required DC power provided from rectified and filtered three phase a.c. output from turbo alternator Automatic control of the amount of fuel delivered to the burn Zone 2, Group II (Class I, Division 2), Temperature Class T3 Digital control compatible with SCADA protocols Annually 30 years minimum

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A.2.

Impressed current anodes

A.2.1.

Mixed metal oxide on titanium substrate– probe/ tube/ wire/ ribbon/ mesh DATA SHEET MIXED METAL OXIDE (MMO) ANODE – PROBE/ WIRE/ RIBBON/ MESH

ENVIRONMENTAL DATA APPLICATION TEMPERATURE SOIL CONDITIONS SOIL RESISTIVITY RANGE

Impressed current anode for Cathodic Protection As per assigned project specification As per assigned project specification As per assigned project specification

ANODE DATA ANODE SUPPLIER & TYPE GEOMETRY COATING TYPE SUBSTRATE CURRENT DENSITY DIMENSIONS COATING THICKNESS COATING LOADING MAX. CURRENT OUTPUT

Vendor to specify Probe/ Tube/ Wire/ Ribbon/ Mesh MMO (Oxides of Iridium/ Tantalum) Titanium, Grade 1 (ASTM B265) Vendor to specify Vendor to specify Proprietary information – as per Vendor standard Proprietary information – as per Vendor standard Vendor to specify for design life

INSPECTION & TESTING VISUAL DIMENSIONAL CABLE-TO-ANODE RESISTANCE ACCELERATED WEAR TEST

On Certificate of Conformity On Certificate of Conformity Less than 0,004 Ω If required per assigned project specification

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A.2.2.


Silicon iron with chrome – solid/ tubular DATA SHEET SILICON IRON WITH CHROME ANODE – SOLID/ TUBULAR

ENVIRONMENTAL DATA APPLICATION TEMPERATURE SOIL CONDITIONS SOIL RESTIVITY RANGE ANODE DATA ANODE SUPPLIER & TYPE GEOMETRY COMPOSITION

Impressed current anode for Cathodic Protection As per assigned project specification As per assigned project specification As per assigned project specification

CURRENT DENSITY DIAMETER LENGTH WEIGHT NOMINAL CURRENT OUTPUT PROJECTED LIFE

Vendor and designation to be given Tubular or solid ASTM A518 Grade 3, Silicon 14,2 – 14,75%, Manganese 1,5% max., Carbon 0,7 – 1,10%, Chromium 3,25 – 5,0%, Molybdenum 0,20% max., Copper 0,5% max., Iron - balance Vendor to specify As per assigned project specification As per assigned project specification As per assigned project specification Vendor to specify Vendor to indicate

CABLE DATA CONDUCTOR CABLE INSULATION CABLE-TO-ANODE CONNECTION CABLE LENGTH

XX mm² single core, stranded tinned copper HMWPE or KYNAR/ HMWPE Galvanised C-steel expansion connector As per project requirements

INSPECTION & TESTING CABLE-TO-ANODE RESISTANCE

Less than 0,004 Ω

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A.3.

Galvanic anodes

A.3.1.

Aluminium – flush mount, stand-off, and bracelet DATA SHEET ALUMINIUM ANODE

ENVIRONMENTAL DATA APPLICATION TEMPERATURE SOIL/WATER CONDITIONS RESISTIVITY RANGE ANODE DATA ANODE TYPE GEOMETRY MATERIAL TYPE ALLOY POTENTIAL ALLOY CAPACITY NET WEIGHT PACKAGED GROSS WEIGHT ANODE DIMENSIONS THEROETICAL CURRENT OUTPUT BETWEEN RESISTIVITY RANGE ANODE COMPOSITION IRON SILICON COPPER ZINC INDIUM TITANIUM GALLIUM OTHERS (EACH) ALUMINIUM INSPECTION & TESTING WEIGHT CHEMICAL COMPOSITION ELECTROCHEMICAL VISUAL

Galvanic anode for cathodic protection As per assigned project specification As per assigned project specification Up to 10 Ω-m (33 Ω-ft) Vendor and anode designation Ingot, ribbon or bracelet Aluminium –1,1 V/ (vs. Cu/CuSO4 ref cell) 2 700 Amp-Hour/kg (1 225 Amp-Hour/lb) (Theoretical) Vendor to state Vendor to state (if applicable) Vendor to state Vendor to specify Generic Aluminium-Zinc-Indium alloy 0,12% max (onshore), 0,09% max (offshore), 0,06% max (offshore, if depth > 300 m (1 000 ft)) 0,08 – 0,21% 0,006% max 2,8 – 6,5% 0,01 – 0,02% max 0,025% max 0,005 – 0,020% 0,02 max Balance One test per 10 anodes (min) Every heat (min) One test per batch (min) DNV RP-B401 Section 11, Annex B, NACE TM0190 NACE RP0387

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A.3.2.


Magnesium – ingot/ ribbon DATA SHEET MAGNESIUM ANODE

ENVIRONMENTAL DATA APPLICATION TEMPERATURE SOIL CONDITIONS RESISTIVITY RANGE

Galvanic anode for cathodic protection As per assigned project specification As per assigned project specification 5 to 150 Ω-m (16 to 492 Ω-ft)

ANODE DATA ANODE TYPE GEOMETRY MATERIAL TYPE ALLOY POTENTIAL ALLOY CAPACITY NET WEIGHT PACKAGED GROSS WEIGHT ANODE DIMENSIONS CABLE SPECIFICATION CABLE TERMINATION CABLE LENGTH THEROETICAL CURRENT OUTPUT BETWEEN RESISTIVITY RANGE

Vendor and anode designation Ingot (circular or d-shaped), ribbon Low/ High Potential magnesium –1,55 V/ –1,75 V (vs. Cu/CuSO4 ref cell) 1 230 Amp-Hour/kg (558 Amp-Hour/lb) (Theoretical) Vendor to state Vendor to state (if applicable) Vendor to state 6 mm² XLPE/PVC (RED), or as per requirements Silver solder or mechanical bolt connection As per requirements Vendor to specify

ANODE COMPOSITION ALUMINIUM ZINC COPPER SILICON MANGANESE IRON NICKEL LEAD OTHERS MAGNESIUM

Low potential 5,3 – 6,7% 2,3 – 3,5% 0,08% max 0,3% max 0,25% max 0,005% max 0,003% max 0,03% max Balance

CHEMICAL BACKFILL COMPOSITION

Gypsum 75%, Bentonite 20%, Sodium Sulphate 5%

INSPECTION & TESTING WEIGHT CHEMICAL COMPOSITION ELECTROCHEMICAL

One test per 10 anodes (min) Every heat (min) One test per batch (min)

High potential 0,01% max 0,02% max 0,05% max 0,5 – 1,3% min 0,03% max 0,001% max 0,30% max total Balance

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A.3.3.


Zinc – flush mount, stand-off, ribbon and bracelet DATA SHEET ZINC ANODE

ENVIRONMENTAL DATA APPLICATION TEMPERATURE SOIL/WATER CONDITIONS RESISTIVITY RANGE

To be stated As per assigned project specification As per assigned project specification Up to 30 Ω-m (100 Ω–ft)

ANODE DATA ANODE TYPE GEOMETRY MATERIAL TYPE ALLOY POTENTIAL ALLOY CAPACITY NET WEIGHT PACKAGED GROSS WEIGHT ANODE DIMENSIONS THEROETICAL CURRENT OUTPUT BETWEEN RESISTIVITY RANGE

Vendor and anode designation Ingot, ribbon or bracelet Zinc –1,1 V/ (vs. Cu/CuSO4 ref cell) 780 Amp-Hour/kg (354 Amp-Hour/lb) (Theoretical) Vendor to state Vendor to state (if applicable) Vendor to state Vendor to specify

ANODE COMPOSITION ALUMINIUM CADMIUM COPPER IRON LEAD MAGNESIUM

MIL-A-18001 0,1 – 0,5% 0,02 – 0,07% 0,005% max 0,005% max 0,006% max Balance

INSPECTION & TESTING WEIGHT CHEMICAL COMPOSITION ELECTROCHEMICAL VISUAL

One test per 10 anodes (min) Every heat (min) One test per batch (min) DNV RP-B401 Section 11, Annex B NACE RP0387

ASTM B418 Type II 0,005% max 0,003% max 0,002% max 0,001 4% max 0,003% max Balance

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A.4.


Cables - PVC/PVC, XLPE/PVC, XLPE/PVC/SWA/PVC, HMWPE, KYNAR/HMWPE, EPR/CSPE DATA SHEET CABLES

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOIL CONDITIONS SOIL RESISTIVITY RANGE

Cables for Cathodic protection As per assigned project specification As per assigned project specification As per assigned project specification As per assigned project specification

CABLE DATA CONDUCTOR INSULATION SHEATH STRANDING ARMOURING CONSTRUCTION OUTERSHEATH COLOUR

Annealed tinned copper wire to IEC 60228 Class 2 KYNAR (Irradiated PVDF), XLPE, PVC, EPR, HMWPE HMWPE, PVC, CSPE Vendor to specify (cross section and number) to IEC 60228 Class 2 Cable to be armoured with round galvanized C-steel wire According to IEC 60502, 600/ 1 000 V Black

IDENTIFICATION INSPECTION & TESTING VISUAL CONDUCTIVITY PHYSICAL PROPERTIES

Surface ink printed – Minimum information “Insulation/ Sheath type/ Conductor size/ 600/ 1 000 V” Visual Inspection of the Cable for defects in the inner and outer sheaths/ colour/ size etc. Vendors Certificate of Conformity Vendors Certificate of Conformity

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A.5.

Reference electrodes

A.5.1.

Copper/copper sulphate (Cu/CuSO4) – permanent/ portable DATA SHEET COPPER / COPPER SULPHATE PERMANENT/PORTABLE REFERENCE ELECTRODE

ENVIRONMENTAL DATA APPLICATION TEMPERATURE SOIL CONDITIONS SOIL RESISTIVITY RANGE

Reference electrode for cathodic protection (non-saline use) As per assigned project specification As per assigned project specification As per assigned project specification

ELECTRODE DATA TYPE MODEL ELEMENT TYPE ELECTROLYTE ACCURACY PROJECTED DESIGN LIFE CASING LENGTH/DIAMETER CASING MATERIAL PRE-PACKAGING CABLE TAIL

Copper/Copper Sulphate Vendor to state Copper (99,99% purity) Copper Sulphate crystals in deionised water ± 5 mV over design life Vendor to state for permanent cell Vendor to state Vendor to state Vendor to state, if applicable for permanent cell Vendor to state, or as per requirements

INSPECTION & TESTING ACCURACY VISUAL INSPECTION

On Certificate of Conformity On Certificate of Conformity

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A.5.2.


Silver/silver chloride (Ag/AgCl) – permanent/ portable DATA SHEET SILVER/ SILVER CHLORIDE REFERENCE ELECTRODE


Reference electrode for Cathodic Protection As per assigned project specification As per assigned project specification As per assigned project specification

ELECTRODE DATA TYPE MODEL MATERIAL TYPE ELECTROLYTE ACCURACY PROJECTED DESIGN LIFE ELEMENT LENGTH ELEMENT DIAMETER GEOMETRIC SURFACE AREA ACTUAL SURFACE AREA CASING LENGTH/DIAMETER CASING MATERIAL PLUG PRE-PACAKAGING CABLE TAIL

Silver / Silver Chloride Vendor to state Sintered Silver – Supplier to advise concentration Sintered Silver – Supplier to advise concentration ± 10 mV over design life (< 3 µamp load) Vendor to state for permanent cell Vendor to state Vendor to state Vendor to state Vendor to state Vendor to state Vendor to state Vendor to state, if applicable for permanent cell Vendor to state, or as per requirements


A.5.3.


Zinc – permanent DATA SHEET ZINC PERMANENT REFERENCE ELECTRODE


Permanent reference electrode for cathodic protection As per assigned project specification As per assigned project specification As per assigned project specification

ELECTRODE DATA TYPE MODEL ELEMENT TYPE WEIGHT DIMENSIONS PRE-PACKAGING CABLE TAIL & CONNECTION

Zinc Vendor to state Zinc (99,99% purity) Vendor to state Vendor to state Vendor to state, if applicable for cell Vendor to state, or as per requirements



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A.6.


Junction boxes - GRP, stainless steel, carbon steel (painted), galvanized steel enclosures DATA SHEET JUNCTION BOXES

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP.

Junction boxes for cathodic protection As per assigned project specification As per assigned project specification As per assigned project specification

DISTRIBUTION BOX DATA MAKE/TYPE ENCLOSURE MATERIAL DEGREE OF PROTECTION DIMENSIONS WEIGHT MOUNTING TYPE CIRCUITS CIRCUIT RATING DOOR SECURITY INTERNAL BOLTED FIXINGS FIXING BOARD

Vendor to state Vendor to state, or as per requirements IP65 min (non-hazardous), IP67 min (hazardous) Vendor to state Vendor to state Vendor to state Number and type to be stated, including resistors/shunts Vendor to state in Watts Vendor to state type, hinged, removable etc. Padlockable handle and 3 point latch Brass, double nuts and spring washers Phenolic, 6 mm (1/4 in) thick

CABLE ENTRY DETAILS TYPE BOTTOM ENTRY

Un-drilled gland plate Vendor to state type, e.g. glands, hub/conduits

IDENTIFICATION TERMINALS

Engraved traffolyte or equivalent

A.7.

Test facilities – Post and flush mounted – polycarbonate, concrete, metallic DATA SHEET TEST FACILITY – POST AND FLUSH MOUNTED


Test facilities for cathodic protection As per assigned project specification As per assigned project specification As per assigned project specification

TEST STATION DATA MAKE/TYPE ENCLOSURE MATERIAL DEGREE OF PROTECTION TERMINATIONS DIMENSIONS WEIGHT SECURITY

Vendor to state Vendor to state Vendor to state, or as per requirements Vendor to state, number and type Vendor to state Vendor to state Vendor to state

ANCILLARY ITEMS CONDUIT DETAILS

Vendor to state, if applicable

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A.8.

Isolation devices/ surge protection & earthing

A.8.1.

Monolithic isolating joint DATA SHEET MONOLITHIC ISOLATING JOINT

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY CONSTRUCTION DATA TYPE/MODEL COMPONENTS

PRESSURE RATING AGGRESSIVE FLUIDS SPECIFICATION DATA TEST PRESSURE DIELECTRIC STRENGTH ELECTRICAL RESISTANCE WELDING AND NDT OPERATING TEMPERATURE

Pipeline isolating joint As per assigned project specification As per assigned project specification Type 1 – single pair of “O” ring seals Type 2 – double pair of “O” ring seals Pipe pups to API 5L C-steel sections (forgings or rings) to ASTM A694 (F 52) Sealing gasket – nitrile “O” rings Insulating rings – glass or fabric reinforced epoxy Dielectric filler – epoxy resin External coating/ internal lining – epoxy resin 150 µm (6 mil) dry film thickness (DFT) PN25 – PN400 (ASME Class 150 – 2500) Special carbon and Stainless steels available for aggressive fluids including wet sour gas and low temperatures 1,5 times design pressure > 2,5 kV in dry air with minimal current leakage and no reduction in resistance 5 MΩ at 1 000 V in dry air As per assign project specification –20 to 85°C (–4 to 185°C). Up to 150°C (302°F) possible with specialised non-metallic materials

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A.8.2.


Gasket isolation kit DATA SHEET GASKET ISOLATION KIT

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY CONSTRUCTION DATA TYPE COMPONENTS PER SET

PRESSURE RATING SPECIFICATION DTA WATER ABSORPTION (24 HOUR IMMERSION) DIELECTRIC STRENGTH INSULATION RESISTANCE FLEXURAL STRENGTH AT 20°C (68°F) (B949F/ B949) COMPRESSIVE STRENGTH FLATWISE AT 20°C (68°F) (B949F/B949) COMPRESSIVE STRENGTH FLATWISE AT 80°C (176°F) (B949F/B949) DENSITY

A.8.3.

Flange insulation kit As per assigned project specification As per assigned project specification Type ‘F’ (raised face), Type ‘E’ (full face), Type ‘D’ (ring type joint, RTJ) One neoprene coated reinforced phenolic gasket, or phenolic ring type joint One phenolic or MYLAR sleeve per bolt Two reinforced phenolic washers per bolt Two Zinc plated mild C-steel washers per bolt 10,3 – 172,4 Bar (150 – 2 500 psi) 0,5% 30 kV flatwise, 15 kV edgewise 105 MΩ as received, 105 MΩ after water immersion 190/ 180 Mpa (27 600/ 26 100 psi) 450/ 350 Mpa (65 300/ 50 800 psi)

300/ 250 Mpa (43 500/ 36 300 psi)

1,35 g/cm3 (0,78 oz/in3)

Spark gaps DATA SHEET SPARK GAPS

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP. TECHNICAL DATA MAKE/TYPE NOMINAL DISCHARGE CURRENT (8/20) LIGHTNING IMPULSE CURRENT AC SPARKOVER VOLTAGE (50 Hz) 100% LIGHTNING IMPULSE SPARKOVER VOLTAGE (1,2/50) PHYSICAL DATA DEGREE OF PROTECTION/ APPROVAL ENCLOSURE CONNECTION DIMENSION

To be used across isolating pipe joints As per assigned project specification As per assigned project specification As per assigned project specification EXFS L 100 kA In accordance with DIN 48810 ≤ 1 kV ≤ 2.2 kV

Special degree of protection (Ex) is in accordance with DIN VDE 0171, § 49, temperature class G4. Die-cast zinc plastic M10 (3/8 in) screw or connecting cable (NSLFF 25 mm²) with terminal lug and M10 screw and nut Ø 63 mm (2 ½ in), 90 mm (3 ½ in) long

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A.8.4.


Polarisation cell DATA SHEET POLARISATION CELL


Earthing in conjunction with cathodically protected structures As per assigned project specification As per assigned project specification As per assigned project specification

TECHNICAL DATA MAKE/TYPE RATED CAPACITY FOR ONE-HALF SECOND MAXIMUM RATED STEADY STATE CAPACITY OPERATING TEMPERATURE RANGE PHYSICAL DATA POLARISATION PLATE MATERIAL NUMBER OF POLARISATION PLATES (PAIRS) ELECTROLYTE CONDUCTOR SIZES TOTAL WEIGHT OPTIONAL ENCLOSURES FOR OUTDOOR USE

A.8.5.

K-5A/ K-25/ K-50 K-5A: 5 000 A, K-25: 25 000 A, K-50: 50 000 A K-5A: 30 A, K-25: 175 A, K-50: 350 A –40°C to 46°C (–40°F to 115°C) Stainless Steel K-5A: 5, K-25: 12, K-50: 25 30% Potassium Hydroxide solution (ships dry) K-5A: 10-35 mm² ( AWG), K-25: 35-125 mm² ( AWG), K-50: 50-250 mm² ( AWG) K-5A: 2,7 kg (6 lb), K-25: 33,5 kg (74 lb), K-50: 40,8 kg (90 lb) Models 5-1/5-1L/5-2L/5-3L/5-4L/5-5/5-6L, IP32 (NEMA 3R/3S), available in 0,81/ 1,63/ 2,31 mm (0,032/ 0,064/ 0,091 in) thick galvanised C-steel

Polarisation cell replacement – solid state DATA SHEET POLARISATION CELL REPLACEMENT (PCR) – SOLID STATE

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP. TECHNICAL DATA TYPE/USE MODEL THRESHOLD VOLTAGE FAILURE MODE ALLOWABLE LIGHTNING FAULT CURRENT RATING AC FAULT CURRENT RATING 50 Hz

STEADY-STATE CURRENT RATINGS HAZARDOUS AREA CLASSIFICATION ENVIRONMENTAL PROTECTION TEMPERATURE RANGE CABLE TAILS (OPTIONAL) CABLE CONNECTORS

Earthing in conjunction with cathodically protected structures As per assigned project specification As per assigned project specification As per assigned project specification Solid state, polarisation cell replacement PCR-3.5 KA/ PCR-9 KA/ PCR-14 KA –3/+1 V d.c. Short Circuit 100 kA crest, 8 x 20 µs waveform PCR-3.5 KA – cycles 1/ 3/ 10/ 30 – 6 100/ 4 700/ 3 900/ 3 500 A. PCR-9 KA – cycles 1/ 3/ 10/ 30 – 19 000/ 14 000/ 11 000/ 9 000 A. PCR-14 KA – cycles 1/ 3/ 10/ 30 – 33 000/ 25 000/ 20 000/ 14 000 A. All models – 50 Hz/ 60 Hz – 45 A/ 50 A at 20°C (68°F) All models – 50 Hz/ 60 Hz – 35 A/ 40 A at 65°C (149°F) NFPA 70: Class I, Division 2, Groups B, C, D IP66 –45°C to 65°C (–49°F to 149°F) 2 x 70 mm² flexible cable – length as required Bolted or lug connection to suit specific application

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A.8.6.


Over voltage protector – solid state DATA SHEET OVER VOLTAGE PROTECTOR (OVP)

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY SOLAR EXPOSED TEMP. CONSTRUCTION DATA TYPE/USE MODEL THRESHOLD VOLTAGE FAILURE MODE ALLOWABLE LIGHTNING FAULT CURRENT RATING AC FAULT CURRENT RATING 50/60 Hz HAZARDOUS AREA CLASSIFICATION EC COMPLIANCE ENVIRONMENTAL PROTECTION MAX. CONTINUOUS AMBIENT CABLE TAILS CABLE LUG/CONNECTOR

INSPECTION & TESTING OPERATION VISUAL INSPECTION

Earthing in conjunction with cathodically protected structures As per assigned project specification As per assigned project specification As per assigned project specification Solid state, spark gap replacement Vendor to state –2/ +2 V d.c., or –3/ +1 V d.c. Short Circuit 100 kA crest, 8 x 20 µs waveform > 6 000 A, 1 cycle. > 3 500 A, 30 cycles NEC, CSA: Class I, Division 1 & 2, Groups A, B, C, D Independent EC certification IP66 55°C (131°F) 2 x 25 mm² flexible cable – 300 mm (12 in) length 10 mm (3/8 in) diameter hole in galvanised C-steel brackets for attachment to isolating joints On Certificate of Conformity On Certificate of Conformity

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A.9.

Testing equipment

A.9.1.

Digital multimeter and clamp meter DATA SHEET DIGITAL MULTIMETER

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP.

Multimeter for cathodic protection As per assigned project specification As per assigned project specification As per assigned project specification

SPECIFICATION DATA TYPE/USE MODEL VOLTAGE DC VOLTAGE AC CURRENT DC CURRENT AC RESISTANCE CAPACITANCE FREQUENCY BATTERIES SIZE/WEIGHT OPERATING TEMPERATURE

Digital Multimeter with temperature reading Vendor to state 1 000 V max, 0,1 mV resolution, ±(0,09%+2) 1 000 V max, 0,1 mV resolution, ±(1,0%+3) 10 A max, 0,01 mA resolution, ±(1,0%+3) 10 A max, 0,01 mA resolution, ±(1,0%+3) 50 MΩ, 0,1 Ω resolution, ±(0,9%+1) 10 000 µF max, 1,0 µF resolution, ±(1,2%+2) 100 kHz max, 0,01 Hz resolution, ±(0,1%+1) Alkaline, 200 hours life (typical) Vendor to state –10 to +50°C (14 to 122°F)

INSPECTION & TESTING OPERATION ACCURACY

On Certificate of Conformity On Certificate of Conformity DATA SHEET CLAMP ON AMMETER

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP. SPECIFICATION DATA TYPE/USE MODEL VOLTAGE DC

Clamp on Ammeter for Cathodic Protection As per assigned project specification As per assigned project specification As per assigned project specification

BATTERIES SIZE/WEIGHT OPERATING TEMPERATURE

Clamp on Ammeter Vendor to state 1 000 V max, 100 mV/ 1 V resolution (400/600 V range), ±(1,0%+3). Crest factor 6 for V < 1 000 V peak. 1 MΩ impedance 1 000 V max, 100 mV/ 1 V resolution (400/600 V range), ±(1,0%+3). Crest factor 6 for V < 1 000 V peak. 1 MΩ impedance 40/200 A range, 200 A d.c. max. or a.c. peak, 10/100 mA resolution (40/200 A range), ±(1,3%+3). Crest factor 6 maximum for True RMS measurements 9 V Alkaline, 40 hours life (typical) Vendor to state 0 to +50°C (32 to 122°F)

INSPECTION & TESTING OPERATION ACCURACY


VOLTAGE AC CURRENT AC/DC

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A.9.2.


Earth resistivity tester and insulation tester (radio frequency) DATA SHEET EARTH RESISTIVITY TESTER

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP.

Earth resistivity tester for cathodic protection As per assigned project specification As per assigned project specification As per assigned project specification

SPECIFICATION DATA TYPE/USE MODEL RESISTANCE RANGES ACCURACY TEST FREQUENCY TEST CURRENT

INTERFERENCE MAX. OUTPUT VOLTAGE MAX. VOLTAGE PROBE RESISTANCE TEMPERATURE EFFECT OPERATING RANGE ENVIRONMENTAL PROTECTION INSPECTION & TESTING OPERATION ACCURACY

Earth resistivity/ Megger tester Vendor to state 0,01 to 19,99 Ω, 0,1 to 199,9 Ω, 0,001 to 1,999 kΩ, 0,01 to 19,99 kΩ (auto ranging) ±2% of readings ±3 digits 128 Hz 20 Ω range 10 mA a.c. r.m.s. 200 Ω range 1 mA a.c. r.m.s. 2/20 kΩ range 100 µA a.c. r.m.s. Max. effect 40 V pk-pk 50 Hz nominal Interference voltage is ±1% of reading in 20 Ω to 2 kΩ ranges 50 V 75 kΩ ±0,1%/°C over operating temperature range –20°C to +45°C, 90% RH max. at 45°C Ingress Protection rating IP54 On Certificate of Conformity On Certificate of Conformity

DATA SHEET INSULATION TESTER (RADIO FREQUENCY) ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP.

Testing of above ground pipeline insulators As per assigned project specification As per assigned project specification As per assigned project specification

SPECIFICATION DATA TYPE/USE MODEL TEST FREQUENCY OPERATING RANGE ENVIRONMENTAL PROTECTION METERS/READ-OUT BATTERY PROBES DIMENSIONS WEIGHT

Insulation Tester (radio frequency) RF/IT 221 kHz with internal band-pass filter –20°C to 45°C (–4°F to 113°F) IP54 LCD analogue style meter with audible alert 6 x Alkaline ‘AA’ cells, with 10 minutes auto power-off 2 x detachable 203 x 102 x 76 mm (8 x 4 x 3 in) 0,9 kg (2 lb)

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A.9.3.


Close interval potential (CIP) survey equipment DATA SHEET CLOSE INTERVAL POTENTIAL (CIP) SURVEY EQUIPMENT

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP. SPECIFICATION DATA TYPE/USE SWITCHES AND DATALOGGERS

Potential measurement survey of buried pipeline As per assigned project specification As per assigned project specification As per assigned project specification Potential measurement survey equipment Maximum time error of ± 20 ms between any two switches during “ON” or “OFF” readings at the determined switching interval. Data loggers are similarly synchronised to switches and to each other with a maximum time error between any 2 data loggers or any data logger and any switch of ± 20 ms and that measurements of “Instant OFF” pipe/soil potentials are undertaken between 100 ms – 500 ms ± 20 ms of switching OFF; “ON” potentials are measured at the end of the ON period 100 ms ± 20 ms before switching “OFF”. The synchronisation accuracy of all data loggers and switches shall be maintained within ± 20 ms, one to another, or ± 10 ms to absolute time, throughout all survey work. The synchronisation between all switches and data loggers to ± 20 ms (or each unit to ± 10 ms to absolute time) at all times during survey operations may be achieved by using GPS time signals, radio time signals, or crystal oscillator clock systems of sufficient reliability and accuracy to meet the requirement at all times during the survey. If the synchronisation relies upon GPS or radio signals that can be interrupted or if the signals from which may be shielded in particular localities, the switches and data loggers shall be able to maintain their synchronisation accuracy to within ± 20 ms between all units for a minimum of 8 hours without receipt of any time signal from GPS or radio network. The synchronisation of switches and data loggers shall be demonstrated at the commencement and end of survey work each day by the use of oscilloscope or suitable data logger able to display 0,5 V to 2,5 V with a discrimination of 1 mV or better and a time discrimination of 1 ms or better All switches and data loggers shall be conclusively proven to be operating within the synchronisation accuracy of ± 20 ms between units. If any units are out with this synchronisation limit, any survey work undertaken since the previous successful synchronisation check shall be repeated with fully synchronised equipment and the unit(s) that were out with the synchronisation limits shall be quarantined and not used in the survey until proven to be rectified/operating within the ± 20 ms unit to unit limit.

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DATA SHEET CLOSE INTERVAL POTENTIAL (CIP) SURVEY EQUIPMENT PROBES

DATA LOGGER/ VOLTMETER SPECIFICATIONS

Designs of reference electrode, which utilise copper sulphate gel such as the types designed for permanent installation, shall not be used for CIP surveys, and should be of saturated Copper/ Copper Sulphate solution in demineralised water. The measurement shall be by a recording digital voltmeter (data logger) with the following minimum characteristics: Minimum of 1 independent channel, measuring simultaneously, with measurement time and period able to be synchronised to ±10 ms with other data loggers and switches stable for a minimum of 24 hours within ±10 ms. Measurement range ±3,5 V minimum with a sensitivity of 1 mV or better and an accuracy of ±0,25% of the measured value. Each channel, balanced input. Common mode noise rejection > 75 dB for d.c. inputs, > 100 dB for a.c. inputs 50-60 Hz. Normal mode noise rejection > 60 dB for a.c. inputs 50-60 Hz up to 10 V. Input impedance 10 MΩ or greater Measurement period, minimum 200 ms commencing a minimum 100 ms after synchronised switch OFF. Period after switch OFF adjustable over the range of at least 100 to 500 ms. The collection of many measurements with a measurement period (count period) of less than 100 ms and then selecting the least negative (or the second least negative or some other non-synchronised selection) as representing Instant OFF shall not be permitted. Real time measurement to ±1 second accuracy (maintaining ±10 ms synchronisation), each voltage data set to incorporate time. Feature codes (e.g. to represent roads, test points, etc) to be able to be entered at the data logger, during voltage measurement, and to be incorporated into the voltage data To facilitate analysis of the CIPS data, pipe/soil potential data from a static location, normally at the start of the survey section, is required for pipeline surveys by using an additional data logger positioned at the “static” location. It is essential that the static data can be accurately linked to the moving data; this is best achieved using the time signal from GPS.

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A.9.4.


Direct current voltage gradient (DCVG) equipment DATA SHEET DIRECT CURRENT VOLTAGE GRADIENT (DCVG) EQUIPMENT

ENVIRONMENTAL DATA APPLICATION TEMPERATURE HUMIDITY EXPOSED TEMP. SPECIFICATION DATA TYPE/USE SURVEY METER

PROBES (PAIR)

CURRENT INTERRUPTER

ACCESSORIES

Detection of buried pipeline coating defects As per assigned project specification As per assigned project specification As per assigned project specification Coating defect location equipment Input impedance 106 Ω Centre zero, and full scale deflection in ranges of; 10 mV, 20 mV, 100 mV, 200 mV, 500 mV, 1 000 mV, 2 000 mV, 5 000 mV Meter movement hermetically sealed and ruggedised High noise rejection, input protection against static over-voltages, current limited output meter. Water resistant case and switches. Batteries: 12 V, 500 mA NiCad lowing up to 80 hours continuous operation without recharging Handles with switchable bias voltage ranges from 30 mV to 1,3 V. Body of each probe is a Copper/ Copper Sulphate reference cell making contact to the ground through a porous wooden tip saturated with Copper/ Copper Sulphate solution 100 V/ 100 A d.c., solid state switching Switching speed 0,2 seconds ON, 0,8 seconds off Batteries: 12 V, 2,5 Amp-Hour sealed lead-acid allowing 7 days continuous operation Ruggedised transit case for meter and interrupter, and separate probe case

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Annex B (Informative)

BP concession request form BP P.O. No:

Equipment/Material Description:

Concession Request No.(1)

Supplier:

P.O. Item No. & Description:

Date Raised:

Sections above & below to be completed by Supplier A. Description of request:

B. Drawings/ documents affected by request:

C. Justification for acceptance:

Name and position:

Signed:

Date:

Sections below to be completed by BP D. Concession rejected (giving justification):

Name and position:

Signed:

Date:

E. Concession approved (outlining any special requirements):

Name and position:

Signed:

Date:

Approvals BP Specialist Engineer Position: Name: Signed:

BP Integrity Assurance Engineer Name: Signed:

BP Business/Project Rep. Position: Name: Signed:

Date:

Date:

Date:

Note 1: For the Concession Request No. Supplier should apply a 3 digit, unique, consecutive number per Purchase Order, commencing with: 001.

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Bibliography BP [1]

GP 06-10 Guidance on Practice for Corrosion Management

[2]

GP 06-31 Guidance on Practice for Cathodic Protection

Euro Norm (EN) [3]

EN 12473 General Principles of Cathodic Protection in Sea Water

[4]

EN 12954 Cathodic Protection of Buried or Immersed Metallic Structures - General Principles and Applications for Pipelines

Det Norske Veritas (DNV) [5]

DNV-RP-F103 Anodes

Recommended Practice Cathodic Protection of Submarine Pipelines by Galvanic

International Organization for Standardization (ISO) [6]

ISO 15582-2 Petroleum and Natural gas Industries - Cathodic Protection of Transportation Systems – Part 2: Offshore Pipelines

[7]

ISO 15589-1 Petroleum and Natural Gas Industries - Cathodic Protection of Transportation Systems – Part 1: On-Land Pipelines

NACE International (NACE) [8]

NACE RP0169 Systems

Control of External Corrosion on Underground or Submerged Metallic Piping

[9]

NACE RP0186

Application of Cathodic Protection for Well Casings

[10]

NACE RP0193

External Cathodic Protection of On-Grade Carbon Steel Storage Tank Bottoms

[11]

NACE RP0196 Galvanic Anode Cathodic Protection of Internal Submerged Surfaces of Steel Water Storage Tanks

[12]

NACE RP0285

Corrosion Control of Underground Storage Tank Systems by Cathodic Protection

[13]

NACE RP0286

Electrical Isolation of Cathodically Protected Pipelines

[14]

NACE RP0388 Impressed Current Cathodic Protection of Internal Submerged Surfaces of Carbon Steel Water Tanks

[15]

NACE RP0572 Groundbeds

Design, Installation, Operation and Maintenance of Impressed Current Deep

[16]

NACE RP0575

Internal Cathodic Protection Systems in Oil-Treating Vessels

NORSOK [17]

NORSOK Std M-503 Rev 2: 1997 Cathodic Protection

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GIS 06-311 - Procurement of Cathodic Protection Goods and Se

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