eshkol power station

Senior Vice President for

Planning, Development and Technology

Energy Resources & Technology Sector

Electrical R&D Laboratory

ESHKOL POWER STATION

SPECIFICATION C.P.RL-366/3.20

IMPRESSED CURRENT CATHODIC

PROTECTION SYSTEM FOR

NEW OFFSHORE & ONSHORE PIPELINES

BETWEEN ESHKOL POWER STATION AND THE

OFFSHORE FULE TERMINAL

THE ISRAEL ELECTRIC CORPORATION LTD.

September, 2015

'lownil nun Israel Electric

SPEC. NO S.RL - 366 I 3.20

Senior Vice President for Planning, Development and Technology Energy Resources & Technology Sector


! ISSUE 1 SUBJECT: IMPRESSED CURRENT CATHODIC ~~~------~------------~

DATE 1/09/2015 PROTECTION SYSTEM FOR NEW OFFSHORE & 1-'.P=--A-G=--E=-2----O-F-2-4-i--=--=--=--=-----'-'------j ONSHORE PIPELINES BETWEEN ESHKOL POWER

STATION AND THE OFFSHORE FULE TERMINAL

TABLE OF CONTENTS

1. Purchaser 2. Name of Project 3. Location of Project 4. Scope of Work

4.1 Scope of Supply 4.2 Contractor Services

5. Terminal Connections 6. Standards and purchaser's drawings 7. Quality Control 8. Technical Documentation

8.1 "As Made" Drawings 8.2 Instruction and Maintenance Books

9. Spare and Renewal Parts 10. Technical Requirements

10.1 Anodels bed 10.2 Backfill 10.3 Cables 10.4 Cable conduits 10.5 Insulating Joints 10.6 Polarization Cells 10.7 Test Stations 10.8 Support components 10.9 DC Power Supply unit 10.10 General 11. Warranty

. Prepared by: Name: I Si nature Checked by: Name: I Si nature Approved by: Name: I Si nature

~~~-=-~-------------------~

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SPEC. NO

S.RL – 366 / 3.20

SUBJECT : IMPRESSED CURRENT CATHODIC

PROTECTION SYSTEM FOR NEW OFFSHORE &

ONSHORE PIPELINES BETWEEN ESHKOL POWER


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SPECIFICATION FOR

IMPRESSED CURRENT CATHODIC PROTECTION SYSTEM FOR

NEW OFFSHORE & ONSHORE PIPELINES

BETWEEN ESHKOL POWER STATION AND THE OFFSHORE FULE

TERMINAL

1. PURCHASER: The Israel Electric Corporation Limited (IEC).

2. NAME OF PROJECT: Eshkol Power Station Offshore Fuel Terminal – New

Pipelines

3. LOCATION OF PROJECT: Near Ashdod.

4. SCOPE OF WORK:

4.1 Scope of Supply:

4.1.1 The Scope of Supply includes surveys, design, development, manufacturing,

preservation, packing, supply of material, installation, erection, commissioning,

testing, monitoring, conducting all the necessary surveys and furnishing DDP the

power station site Impressed Current Cathodic Protection Systems for New Offshore

& Onshore Pipelines, between Eshkol Power Station and the Offshore Fuel Terminal

(hereinafter: the “ CP System”).

The complete implementation of CP system should be carried out under supervision

of experienced CP engineers.

The Permanent CP System (which will include: impressed current anodes, DC power

Supply, distribution cabinets, cables, cable’s conduits test stations, and other support

components as required) shall be supplied complete with appurtenances and

accessories, to form a complete CP system, which will achieve and assure safe and

reliable operation with best overall performance.





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Temporary CP System shall be applied for pipelines protection during construction

phase. The design life of the Temporary CP shall be for period of one (1) year or

construction period (whichever is later).

Contractor shall give performance guarantee for the CP system. Compliance with this

specification and/or any of the contractor's documents shall in no case relive the

contractor of his contractual obligation.

- The CP System shall be designed to achieve a Protective Potential of:

• (-800 ÷ -1050) mV, "Instant off", against standard reference electrode

Ag/AgCl, along all the offshore section of the pipelines.


Cu/CuSO4, along all the onshore section of the pipelines.

- The CP System should supply uniform protective potential along all offshore and

onshore pipelines.

- The maximum Current Density of the protective current shall be no more than

0.01 mA/m2.

- The design of CP System shall comply with Purchaser’s requirements and with the

standards specified in Para. 6.

- The design should consider nearby underground facilities including pipelines, tanks,

and other buried metal structures existing and planned at the site, with and without

cathodic protection system. The maximum positive potential change at any

pipelines/structures resulting from interference shall not exceed 20 mV.

- The life expectancy of the CP System shall be designed to keep its protective potential

for a continuous operating period (24 hours) for a minimum of thirty (30) years.

- The CP System shall be built in such a way to enable easy required measurements and

maintenance.

All components, appurtenances and accessories shall be of proven design.

4.1.2 The work will consist but shall not be limited to the following (temporary and

permanent systems):





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1) Preliminary tests and surveys.

2) Design and technical documents.

3) Temporary CP System.

4) Supply of equipment and materials.

5) Installation.

6) Start Up operation and achieving specified characteristics.

7) Preparation of “as made” drawings.

8) Extensive test of Permanent CP System.

9) Final Acceptance test

4.1.3 A consistent nomenclature shall be used project-wide in naming all component parts

within the Scope of Work. This shall apply to all drawings, Instruction Books, Bill of

Materials, special instructions etc. The cost of correcting inconsistent nomenclature

shall be borne by the Contractor.

4.1.4 Changes in the Purchaser’s “Approved to Continue document" are normally not

accepted. However, if such changes become necessary on an exceptional basis, the

Contractor shall obtain the Purchaser’s approval prior to introducing any changes.

4.1.5 Items that are herein specified in regard to manufacturer, model and type shall be

considered as the standard of supply. It is not intended that the scope of work shall be

limited solely to the specified product, and the Contractor may make an adequate

substitution. All substituted products offered by the Contractor shall be noted as

exceptions to this Specification and are subject to the review and general approval of

the Purchaser.

4.1.6 In cases of problems or lack of clarity, the Contractor will arrange meetings between

designers and IEC’s representatives to clarify and solve all the problems or comments

regarding the cathodic protection design, test and/or surveys.





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4.2 Contractor Services

The Contractor shall prepare the CP System design based on the information

submitted by Purchaser forming part of this Specification, IEC information and by

conducting preliminary tests and surveys.

4.2.1 Preliminary Tests and Surveys

After Contract award, approved experienced engineers shall conduct a preliminary

test/survey to establish the information necessary for the CP System design

including: ground characteristics, nearby existing and planned infrastructure, with or

without cathodic protection system, and other fundamental parameters required for

the CP System design.

The contractor shall submit a detailed preliminary tests and surveys procedure for the

purchaser “Approved to continue".

After the purchaser has received the preliminary tests and surveys procedure, the

purchaser shall submit an “Approved to Continue document” or comments. In the

case of comments the preliminary tests and surveys procedure shall be upgraded until

the procedure shall be "Approved to continue" by the Purchaser’s Engineer.

This preliminary test and survey shall be carried out in the presence of the Purchaser

or his authorized representative.

4.2.2 Design and technical documents

After the preliminary tests and surveys, the contractor shall prepare data interpretation

report and principle a conceptual design of CP system (including all relevant) for

Purchaser review and “Approved to continue".

As a guideline, the design shall be included (but no limited):

• Result of the preliminary tests and surveys have been carried out;

• A description of the basis of the design with reference to relevant

specifications, codes and standards;

• Pipelines parameters (material, length, diameter, thickness, coating, etc.);

• Ground and sea water conditions (ground and sea water properties, depth,

etc.);

• The design life of the system;

• Detailed calculations of surface area to be protect, current requirement, anode

parameter (mass, maximum current density output, resistance, number, etc.);





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• A schematic diagram of the proposal CP System, pipeline attenuation

calculations and an overview of the CP System capacity;

• Requirements on cathodic protection system and/or materials;

• Interference between the new pipelines and all adjacent, existing and planning,

pipelines and/or metallic structures (onshore and offshore);

• Monitoring facilities, frequencies and procedures.

After the purchaser have receive the report of the principle a conceptual design of CP

system, the purchaser shall submit an “Approved to Continue document” or

comments of the principle a conceptual design of CP System. In the case of comments

the conceptual design shall be redesign until the design shall be "Approved to

continue" by the Purchaser’s Engineer.

After the Purchaser's “Approved to Continue document”, the contractor shall prepare

detailed design documents of CP system for Purchaser review and "Approved to

continue".

As a guideline, the detailed design shall be included (but no limited):

• Final detailed design calculation based on anode's manufacturer/suppliers data

sheet;

• Complete list of materials to be used for the installation of the CP System,

including technical data sheet, manufacturer, quantities, and spare parts

required for maintenance of the system during the first five (5) years of

operation;

• A complete set of design drawings, in sufficient detail, including anode

distribution, detailed anode design and construction;

• A wiring diagram and component and installation detailed;

• Description of type and acceptance tests for each component;

• Installation procedures;

• Detailed Start up procedures;

• Detailed extensive test/survey procedures;

• Operation and maintenance manual, including final monitoring plan.

After the purchaser have receive the report of the detailed design of CP System, the

purchaser shall submit an “Approved to Continue document” or comments of the

detailed design System. In the case of comments the contractor shall redesign the

system until satisfaction detailed design shall be "Approved to continue" by the

Purchaser’s Engineer.





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4.2.3 Temporary CP System

During construction phase Temporary CP System shall be installed for pipelines

protection.

The design life of the Temporary CP shall be for period of one (1) year or

construction period (whichever is later).

The temporary system can be Impressed CP or Galvanic CP in order to achieve the

required level of cathodic protection during construction phase.

The contractor shall submit a detailed installation procedure, of the temporary system,

for the purchaser "Approved to continue".

The contractor shall conduct a periodically measurements of the installed pipelines

section to assure that protective potential are achieve with the implementation of the

Temporary CP System. In case of low level of protection remedial action shall be

done until minimum protection level have been achieved and approved by the

Purchaser’s Engineer

4.2.4 Supply of equipment and materials (herein "items")

All the supply items shall be inspection and tested by the contractor.

The contractor shall submit a test certificates with sufficient information of each item

performance for the purchaser "Approved to continue".

The tests shall confirm to requirements as defined in the relevant code and standards

of the item.

After the purchaser have receive the report of the detailed items tests results, the

purchaser shall submit an “Approved to Continue document” or comments on the

results. In the case of comments the contractor shall upgrade or replace the item until

the tested item shall be "Approved to continue" by the Purchaser’s Engineer.

4.2.5 Installation and Start Up operation

Before the CP System facilities are put into start-up operation necessary tests shall be

carried out (to the pipelines and to the CP System) to establish that all the equipment,

devices, wiring and connections have been correctly installed, connected are in good

working condition as required for the intended operation.





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As soon as the Contractor’s Engineer has certified that the installation of the pipelines

and the CP System has been completed, the Contractor shall operate the CP System

for a period of two (2) weeks of continues operation (Start Up) during which it will

conduct measurements and current regulation to achieve the required protective

potential, current density and good working system.

The cost of “Start Up” including, but not limited to expenses for personnel, tools and

equipment, shall be borne by the Contractor and are included in the price of the

project.

The Start Up tests shall be carried out in the presence of the Purchaser or his

authorized representative.

The contractor shall submit a detailed “Start Up test report” to the Purchaser.

As a guideline, the Start Up test report shall be included (but no limited):

• As Made drawings;

• Result of holiday detector test of all the pipe section proximate to laying the

pipe section at the final site;

• Result of holiday detector test of all the anode lead cable proximate to laying

the cable at the final site;

• Result of Direct Current Voltage Gradient (DCVG) of along the onshore

pipelines;

• Result of Drainage Test;

• Rectifier parameters;

• Pipelines protective potential at the test station and at the edge of the offshore

pipelines;

• Instruction manual of the CP System.

After the purchaser have receive the “Start Up test report”, the purchaser shall submit

an “Approved to Continue document” or comments. In the case of comments

remedial action shall be done, by the contractor, until proper performance of the

system have been achieved and approved by the Purchaser’s Engineer.

4.2.6 Extensive test/survey

After the purchaser approval that the start-up has been satisfactorily completed and

after a period of four (4) weeks of continues satisfactorily operation has passed, the

contractor shall conduct an extensive test/survey.

As a guide line, the test/survey shall include:





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• Close Interval Potential Survey along all the onshore and offshore parts of the

pipelines;

• DC Power Supply measurement parameters (mode of operation, current,

voltage);

• Interference between the new pipelines and the adjacent pipelines and/or

metallic strictures.

The test shall be carried out in the presence of the Purchaser or his authorized

representative.

The Contractor shall submit a detailed “extensive test/survey report” to the purchaser

and may apply for “Provisional Acceptance document” of the works.

After the purchaser has received the report of the extensive test/survey, the purchaser

shall submit a “Provisional Acceptance document” or comments of deficiencies or

deviations from the required characteristics of the System. In the case of deficiencies

the extensive test shall be repeated until proper performance of the system have been

achieved and approved by the Purchaser’s Engineer.

4.2.7 Final Acceptance test

After one (1) year of continuous operation of the Permanent CP System, the

Contractor shall perform a Final Acceptance test/survey.

The contractor shall submit a detailed Final Acceptance test/survey procedures for the

purchaser general approval.

As a guide line, the final test/survey shall include (but no limited):

• Close Interval Potential Survey along all the onshore and offshore parts of the

pipelines;

• DC Power Supply measurement parameters (mode of operation, currents,

voltages);

• Interference between the new pipelines and the adjacent pipelines and/or

metallic structures.

• Anodes working parameters.

The test shall be carried out in the presence of the Purchaser or his authorized

representative.





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The contractor shall submit a detailed “Final Acceptance test report” to the Purchaser

after reviewing the Final Acceptance test/survey.

After the Final Acceptance test/survey has been satisfactorily completed, and the

Final Acceptance test report has been accepted by IEC, the Contractor may apply for

“Final Acceptance document” of all the work which confirms that the equipment and

services were finished in accordance with the project requirements.

4.2.8 Supply of Instruments and Accessories for Maintenance Work

4.2.8.1 All measuring instruments, indicators, other apparatus and all on-site work shall be

provided by the Contractor at his own cost and are included in the Contract price.

4.2.8.2 All measuring instruments shall be certified as having been calibrated.

4.2.8.3 All deficiencies or deviations from the required characteristics of the CP System

disclosed by the tests shall be corrected by the Contractor and the tests repeated, as

necessary, until proper performance of the system, as specified above, have been

achieved and accepted by the Purchaser’s Engineer.

4.2.8.4 Contractor shall furnish all special equipment and instruments required for test and

maintenance of the CP System.

5. TERMINAL CONNECTIONS

Contractor shall terminate its installation and wiring works at the following

terminals/location:

a. Terminals at the DC Power Supply.

b. Alarm terminals at the Electric room.

All other installation and wiring works, which are not specified, above are in the

Contractor’s Scope of Works.

The electrical installations shall comply with the standards and codes of the “Israel

Electric Corporation” (Purchaser).





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6. STANDARDS AND PURCHASER’S DRAWINGS

6.1 Contractor shall base his design in addition to the Purchaser’s requirements on the

following Standard and Purchaser’s drawings which form part of this Specification.

- I.EC. Drawings regarding the new offshore and onshore pipelines.

- BS 7361: part 1991 – “Cathodic protection code of practice for land and marine

application” (not attached).

- NACE SP0169: 2013 – “Control of External corrosion on underground or submerged

metallic piping system” (not attached).

- ISO 15589-1:2003 – "Petroleum, petrochemical and natural gas industries

- "Cathodic protection of pipeline transportation systems - Part 1: On-land pipelines"

(not attached).

- ISO 15589-2:2012 – "Petroleum, petrochemical and natural gas industries -- Cathodic

protection of pipeline transportation systems - Part 2: Offshore pipelines" (not

attached).

- BS EN 12473:2014- "General principles of cathodic protection in seawater" (not

attached).

- BS EN 12474:2001- "Cathodic protection for submarine pipelines" (not attached).

- BS EN 12954:2001- "Cathodic protection of buried or immersed metallic structures.

General principles and application for pipelines"(not attached).

6.2 In the event of a variance between the general requirements of standard and the

particular requirements of the Project Specification, the specific requirements in this

Project Specification supersede and take precedence.

6.3 Standards and Codes referenced in this Specification form an integral part of this

Specification to the extent specified herein. All such Standards and Codes are

applicable, including all amendments, supplements etc., current as of the date of the

Contract, unless otherwise indicated.

6.4 The Equipment that is provided under this Specification, including all appurtenances

and accessories, shall be designed, fabricated, inspected, tested and preserved to the

extent indicated and to the Standards and Codes as specified herein.

6.5 All component parts not so specified shall be designed, fabricated, inspected, tested

and preserved, as applicable, to currently recognized industrial and/or Contractor’s

Standards, whichever are tighter and more restrictive.





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6.6 Contractor may propose Standards and Codes as alternates for, or additions to those

specified herein. A copy of each proposed Standard and code, if any, should be

submitted for review and approval.

7. QUALITY CONTROL

7.1 Material

7.1.1 Material test reports containing actual values should be sent to the Purchaser no later

than one (1) month prior to shipment. Reports shall be signed and attested, and shall

be subjected to Purchaser’s review and acceptance.

7.1.2 All materials used in manufacturing of the Equipment shall conform to the

Specification, approved drawings, and accepted Standards. Use of alternate materials

and subassemblies is not accepted unless a specific and documented authorization is

granted in writing by the Purchaser.

7.1.3 When subcontracting part of the Works, Contractor shall submit copies of his

unpriced orders to his Subcontractor(s) for materials, services and parts, clearly

marked with the Purchaser’s name and Contract no. These shall be submitted on

Purchaser’s demand and shall specifically indicate Contractor’s quality requirements

from his Subcontractor(s).

7.1.4 Manufacturing shall not commence prior to general drawing approval by the

Purchaser.

7.1.5 Any Equipment non-conformance to drawings, specifications or other purchase order

requirements which are considered by the Contractor as “acceptable as is” or for

“repair”, shall be submitted to the Purchaser for "Approved to continue", with their

recommended dispositions. All such non-conformance’s shall be approved by the

Purchaser, shall be documented, and a copy of the approval shall accompany each

shipment.

8. TECHNICAL DOCUMENTATION

In addition to the above mention the following related documentation shall be

submitted to the purchaser:





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8.1 "As-Made” Drawing

The “as-made” drawings shall cover the works (under this Contract) as completed on

the site, incorporating all modifications carried out during manufacture or after testing

at the Contractor’s or Subcontractor’s and Manufacturer’s work and all modifications

carried out in the course of the installation and commissioning and testing of the

plant. In addition, each item of electrical equipment shall be provided with a

schematic drawing and a wiring drawing. The schematic drawing shall show the

connections in a schematic form to be used for checking the operation. The wiring

drawing shall show the individual components, approximately in their actual relative

positions, the electrical connections being shown exactly as wired at site. This will

be used to locate a particular component or connection in the actual equipment

Every connection shall be numbered and the number given for a particular connection

shall be the same on the schematic drawing, on the wiring drawing and as tagged on

equipment.

8.2 Instruction and Maintenance Book

The Contractor shall provide the Purchaser instruction books and drawings as may be

required for installing, operating and maintaining the Equipment. In case the

Purchaser rejects all or part of the instruction manuals or of the drawings, the

Contractor shall amend them to meet the Purchaser’s requirements.

The instruction manuals shall cover the commissioning, testing, operation and

maintenance of each individual part of the System. Special care shall be given to

completeness and clarity of presentation.

It is emphasized that a collection of standard pamphlets of a general nature,

unaccompanied by drawings and descriptive matter, relating to the System, as

installed, will not be acceptable.

In particular, information supplied by subcontractors and manufacturers employed by

the Contractor shall be coordinated into the comprehensive manual. Cross-references

in a descriptive matter, drawings and spare part lists shall be complete.

The manuals shall be in English/or Hebrew.

The instruction manuals shall describe the installation as a whole and shall give a

step-by-step procedure for any operation likely to be carried out during the life of the





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plant, including its erection, commissioning, testing, operation, maintenance,

dismantling, and repair.

Maintenance instructions shall include charts showing checking, testing and

replacement procedures to be carried out daily/weekly/monthly, or longer intervals, to

ensure trouble-free operation. A separate section of the manual shall be devoted to

each size and type of equipment and to each part of the system.

9. SPARE AND RENEWAL PARTS

9.1 The Contractor shall indicate in the Proposal the life duration of the Equipment as a

whole and the normal replacement cycle of the component part.

9.2 The Contractor shall propose detailed lists of spare parts, recommended for:

- Commissioning

- The first five (5) years of operation;

- Long term operation (30) years.

9.3 The lists shall include for each item

- Item designation;

- Type;

- Recommended possible manufacturers;

- Necessary catalogue data for separate order;

- If the supply is from stock or by manufacturing after order.

9.4 All spare-parts shall be functioning properly, new and unused in all cases.

9.5 The Contractor shall identify the materials and items which have critical effects of CP

System Reliability and items that require special maintenance treatments.

10. TECHNICAL REQUIREMENTS

The CP System will be used to catholically protect the New Offshore & Onshore

Pipelines, between Eshkol Power Station and the Offshore Fuel Terminal.





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The system shall be designed to achieve a Protective potential of:


Ag/AgCl, along all the offshore section of the pipelines.

• (-850 ÷ -1150) mV, "Instant off" against standard reference electrode

Cu/CuSO4 along all the onshore section of the pipelines

The maximum Current Density of the protective current shall be no more than

0.01 mA/m2.

The maximum positive potential change at any pipelines/structures resulting from

interference shall not exceed 20 mV.

The CP System shall keep the capability of current output for at least thirty (30) years.

The CP System shall include (but not be limited to) the following parts/components:

10.1 Anode/s bed

10.1.1 The anode ground bed shall supply a uniform current distribution, along all the

structure.

10.1.2 The anodes shall be designed for supplying the maximum design current for at least

thirty (30) years.

10.1.3 The anodes shall be impressed current anodes such as Mixed Metal Oxide (MMO) or

equal material with equal characteristics.

10.1.4 Each anode shall be installed with an individual lead wire cable. The cable shall be

long enough for connecting the cable directly to the test station without any other

connections.

10.1.5 Each anode shall have an adequate tool to enable current adjustment.

10.1.6 Each anode shall have an individual shunt for measuring individual anode current.

10.1.7 Potential gradient around the bed shall be with safety requirements with regard to

interference on foreign strictures.





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10.2 Backfill (for anodes groundbed onshore installation)

10.2.1 The anodes backfill should be made of high conductivity carbon backfill or equal

backfill with equal characteristics.

10.2.2 The carbon backfill will be in such a manner as to enable maximum performance at

the ground bed.

10.2.3 The backfill shall be suitable to the selected anodes.

10.3 Cables

10.3.1 The cable supplied with each anode should be with proper mechanical and insulation

characteristic necessary in such installation.

10.3.2 The connection between the cable and the anode shall have mechanical strength and

insulation property.

10.3.3 The cable supplied with each anode shall be long enough for connecting the cable

directly to the test station without any other connections.

10.3.4 The cable insulation shall be made of HMWPF or equal material with equal

characteristics.

10.3.5 All the cables between the D.C. power supply to the anode groundbed and to the

pipelines connections at site and from the D.C. power supply to the electric room shall

be supplied and installed by the contractor.

10.3.6 Each wire of the anode and the pipelines connections at site shall be marked for

identification by the contractor.

10.4 Cable Conduits

10.4.1 The above and underground cables shall be inserted in suitable pipe conduits as

necessary for such industrial environmental conditions.

10.4.2 All necessary cable conduits shall be supplied, installed, tested and applied to function

by the Contractor.





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10.5 Insulating Joints

10.5.1 Each pipeline should have two (2) insulating joints; one (1), above ground, nearby the

entrance/outage of the pipeline near the power station and one (1), underground, near

the shore line.

10.5.2 The insulating joint should be monolithic joint, one type for above ground installation,

and one type for underground installation.

10.6 Polarization cells

10.6.1 Over each insulating joint a solid state polarization cell should be installed.

10.6.2 The polarization cell parameter should be applicable to the location of installation and

the surrounding facilities.

10.6.3 The solid state polarization cell, which located outside of the power station site, shall

be installed in a way to protect against vandalism

10.7 Test Stations

10.7.1 Test stations shall be located along the costal part of the pipelines for monitoring the

cathodic protection performance at location such as:

- insulating joint;

- crossing or nearby adjacent pipeline;

- Adjacent underground metallic structure with CP system.

- Locations were interference is expected.

Test Station shall be provided at addition location if required.

10.7.2 Two cables shall be provided from the pipeline at any test station.

10.7.3 The Test Station should be suitable to the surrounding environment. The Test Station,

which located outside of the power station site, shall be installed in a way to protect

against vandalism.

10.7.4 The location of the test stations shall be marked with their connection schemes and

other relevant information on the "As Made Drawings".





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10.8 Support Components

The Contractor shall add to his specific design any support components, as necessary,

according to the environmental conditions

10.9 D.C. power supply unit

10.9.1 The Contractor will supply, install, connect and put into operation power supply

(adequate for indoor installation) including distribution cabinet (for outdoor

installation), all cables, wires, terminal boxes, fittings, lightning protection, earthing

connections, etc.

10.9.2 The power supply unit shall include two (2) main cabinets

- Power supply cabinet which will be placed indoor;

- Distribution cabinet which will be placed outdoor near the anodes groundbed.

10.9.3 The power supply unit shall meet the relevant international specification.

10.9.4 The delivered equipment will be current / voltage stabilized.

10.9.5 The power supply shall be 1 phase 230V or from 3 – phase network 400V with

neutral wire, while the frequency is 48-51 Hz and the maximal voltage deviation from

its average is +10% -15%.

10.9.6 The delivered equipment will be able to operate in any of the following modes:

a. Constant voltage

- The output D.C. voltage range shall be determined according to the system

requirements;

- The output D.C. voltage shall be continuously adjustable between 1V ÷ max required

voltage;

- The output D.C. voltage shall be maintained constant with precision of max 1% in the

whole range of D.C. output current and the input voltage deviation range.





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b. Constant Current

- The output D.C. current shall be continuously adjustable between 0.01A ÷ max

required current;

- The output D.C. current shall be maintained constant with precision of max 1% in the

whole range of D.C. output voltage and the input voltage deviation range.

10.9.7 Power supply cabinet

The power shall include (but not be limited to) the following:

- A suitable digital voltmeter with a suitable voltage regulator which enables the

adjustment and monitoring of the D.C. output voltage;

- A suitable digital Ampermeter with a suitable current regulator which enables the

adjustment and monitoring of the D.C. output current;

- Current stabilized / voltage stabilized selector;

- Main A.C. input Automatic circuit breaker with contact trip (protection against over-

current);

- Main D.C. output automatic circuit breaker with contact trip (protection against over-

current in the output);

- Hour counter which enables counting of the power supply operation hours;

- Led / lamps: Red for – main circuit breaker is at “on” position

Green for - alarm

10.9.8 The following alarm parameter shall be provided:

- One of the Anodes does not supply current;

- Internal failure / trouble of the rectifier;

All the above alarms shall be combined into one local alarm which:





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- Light a green led which exist on the front panel of the power supply;

- Operate a remote alarm contact for 125 VDC – 0.1 Amps.

10.9.9 The power supply unit shall include appropriate devices to enable remote monitoring

of the current and voltage parameter and for general failure.

10.9.10 All the components should have a suitable labeling which should be approved by the

Purchaser.

10.9.11 The system shall be equipped with lightning protection in the following places:

- Anode output;

- Power supply input.

10.9.12 The power supply unit shall include a condensation preventing heater with a suitable

switch.

10.9.13 The system shall include built- in interrupter for the total output voltage / current

which enable to interrupt the total output voltage / current with a time interval of 0.1

sec ÷ 1 sec. the interrupter should be placed at the inner front side of the power

supply.

10.9.14 The internal power supply unit cables shall be free halogen as required at I.E.C.

Standard.

10.9.15 Mechanical requirements

- The delivered D.C. power supply shall have enclosure protection of IP-45, floor

mounted, entrance of the cables through gasket removable.

- The front of the power supply cabinet shall include door with transparent hardening

glass window (to withstand scrapes) which enables all the operational panel and/or

display to be seen.

- The cabinet cooling shall be natural cooling, the cooling, the cooling entree shall have

an adequate mean which will comply with the protection degree requirements.





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- The contractor should get final approval for the dimension of the cabinets and for the

components location at the power supply cabinet and distribution cabinet.

10.9.16 Distribution cabinet

10.9.16.1 The distribution cabinet shall be provided for each anode groundbed to connect

anode cable to the DC positive supply cabling;

10.9.16.2 The distribution cabinet shall withstand outdoor installation and shall comply with

IP65 and shall keep their characters for at least thirty (30) years. The outdoor current

distribution part may have an enclosure protection of IP-65 with two ventilation vent

at each side;

10.9.16.3 The distribution cabinet shall be marked, according to the general design of the CP

System, permitting easy detection of the required connection;

10.9.16.4 The distribution cabinet shall have an external, marked grounding bolt;

10.9.16.5 For easy maintenance and repair, all the distribution cabinet shall be placed in easily

accessible places for the maintenance personnel;

10.9.16.6 Each distribution cabinet shall be delivered fully assembled, wired and tested, ready

to be applied to function, at the installation site;

10.9.16.7 The distribution cabinet shall include (but not be limited to) the following:

- Automatic circuit breaker for each anode to enable connecting and disconnecting to

from the power supply and for protection against anode short circuit;

- Suitable shunt;

- Adequate component to enable current adjustment for each anode;

- Suitable digital voltmeter with suitable selector switches which enable measuring

each anode output current.





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10.10 General

10.10.1 This specification is for Impressed Current Cathodic Protection System for

protection of New Offshore & Onshore Pipelines, between Eshkol Power Station and

the Offshore Fuel Terminal.

10.10.2 The system shall be designed to achieve a Protective potential of:

- (-800 ÷ -1050) mV, "Instant off", against standard reference electrode Ag/AgCl, along

all the offshore section of the pipelines;

- (-850 ÷ -1150) mV, "Instant off" against standard reference electrode Cu/CuSO4,

along all the onshore section of the pipelines.

10.10.3 The CP System should supply uniform protective potential along all offshore and

onshore pipelines.

10.10.4 The maximum Current Density of the protective current shall be no more than

0.01 mA/m2.

10.10.5 Each design of the System shall comply with Purchaser’s requirements as with the

Standards and drawing specified in para. 6.

10.10.6 The design should consider nearby underground facilities including pipelines,

tanks, and other buried metal structures existing and planned at the site, with and

without cathodic protection system. The maximum positive potential change at

any pipelines/structures resulting from interference shall not exceed 20 mV.

10.10.7 The life expectancy of the CP System shall be designed to keep its protective

potential for a continuous operating period (24 hours) for a minimum of thirty (30)

years.

10.10.8 The CP System shall be built in such a way to enable easy required

measurements and maintenance.

11. WARRANTY

11.1 Materials and equipment shall be the best of their respective kinds, and shall be new

and unused in all cases and shall meet the performance and other requirements of the

Contract including the Specification.





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11.2 The Contractor warrants that the work will be of the best quality and satisfactory to

the Purchaser. The Contractor agrees promptly and at his own expenses to repair,

remedy or replace any part of the work which within the warranty time period proves

in any way defective as to design, material or workmanship or otherwise unsuitable

for the purposes contemplated by the Contract.

11.3 The Warranty period shall commence from the date of Final Acceptance by IEC and

shall run for a period of eighteen (18) months.

11.4 If the Contractor does not repair, remedy and/or replace any such work within

reasonable time after written notice by the Purchaser, the Purchaser may repair,

remedy and/or replace it at Contractor’s expenses without prejudice to any other

rights of the Purchaser.

11.5 The above warranties shall also apply to any replacement parts.

eshkol power station

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