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Pipelaying Tender-VOL IV - WorleyParsons.com

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EPMC SERVICES FOR REWARI – KANPUR PIPELINE<br />

SPECIFICATION FOR PIPELINE CONSTRUCTION<br />

4.10.1 The coating of field joints or repairs to damaged coating shall be at least as equal in<br />

effectiveness to the coating applied over the main body of the pipeline. All such field joints and repairs<br />

must be inspected with the use of the holiday detector in the presence of Owner's representative.<br />

4.10.2 Application of coating in the field shall be as per General Specification MH2145-C000-PL-SPC-<br />

00XX "Field Joint Coating (Heat Shrink Sleeves)".<br />

4.10.3 Any coating material which in the opinion of OWNER has been damaged by atmospheric<br />

conditions, reheating, overheating, or other operations shall not be use and must be reported to<br />

Owner's representative.<br />

4.10.4 The CONTRACTOR shall notify OWNER in advance of any and all cleaning, coating, and<br />

wrapping operations.<br />

4.11 Testing for Holidays<br />

CONTRACTOR shall pass a Stearns Electronic Holiday Detector or equal type of holiday detector, set<br />

at a voltage (maximum of 15000 volts) per mil of coating thickness as re<strong>com</strong>mended by coating<br />

manufacturer, over pipe after all pipe is coated and just ahead of the lowering operation. If the coated<br />

and wrapped pipe has been laid on skids, the coating and wrapping must be checked at each point of<br />

contact with the skids. All holidays shall be plainly marked immediately after detection and shall be<br />

patched to the satisfaction of the OWNER. OWNER reserves the right to have the CONTRACTOR<br />

repass the Holiday Detector over any section of the pipeline when, in the opinion of the OWNER, it is<br />

necessary.<br />

4.12 Protection of Coated Pipe<br />

Sections of coated pipe shall be carried and not dragged. Extreme care shall be taken when coating<br />

may be damaged by movement. When the OWNER deems it necessary by reason of hot weather,<br />

CONTRACTOR shall furnish materials and whitewash any loops, slack loops, or spans. At all times<br />

coated pipe shall be handled by belt slings. The width of the belt slings shall be equal to approximately<br />

one (1) diameter of the pipe. Care shall be used to prevent damage to coating when belt is removed<br />

after pipe is lowered.<br />

4.13 Lowering-In<br />

This shall include all work necessary to lower pipe into trench after coating operation has been<br />

<strong>com</strong>pleted.<br />

4.13.1 All brush, skids, pipe, metal of any kind, rocks, large clods, sticks, projecting rocks, and other<br />

hard objects shall be removed from the trench into which the pipeline is to be lowered so that the<br />

protective coating shall not be punctured or abraded.<br />

4.13.2 The trench shall be made wide enough where slack loops are lowered into the trench so that no<br />

coating will be rubbed off.<br />

n:\513-mh-2145-rkpl\11 engineering\11.8 pipelines\06 spec\specification for pipeline construction\mh2145-c000-<br />

pl-spc-0001.doc<br />

MH2145-C000-PL-SPC-0001 RevA Page 20 of 32

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