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but the overall flange is found shorted, indicating a shorted gasket, the same <br /> process will be repeated with the other flange. All insulating flanged joints shall <br /> be coated as shown on the drawings and specified below. <br /> B. Coating of Buried Insulating Flanges: Surfaces shall be cleaned of all dirt, <br /> grease, oil and other foreign materials immediately prior to coating. Remove <br /> loose rust, paint and other foreign matter in accordance with SSPC SP2 or SP3. <br /> A prime coating shall be applied in a uniform coating over the entire surface to be <br /> wrapped. A liberal coating shall be applied to threads, cavities, shoulders, pits <br /> and other irregularities. A fill coating shall be molded and packed onto irregular <br /> surfaces such as flanges, valves or flexible couplings to create a smooth profile <br /> prior to wrapping. A wrap coating shall be spirally wrapped using a minimum of <br /> 55 percent overlap to ensure a double thickness of material. At the completion of <br /> each roll the overlaps shall be smoothed by hand in the direction of the spiral to <br /> ensure sealing of the overlap. A 2-inch overlap shall be maintained when <br /> overlapping one roll with the end of a new roll. Overlap shall occur on the top <br /> half of the pipeline. A guard coating shall be spirally over-wrapped using a 55 <br /> percent overlap to ensure a double coating. <br /> C. Install the insulating joint test station (IJTSA, IJTSPRA, and IJTSRA) as shown <br /> on the drawings. This will include the post mounted junction box and PCR <br /> device. The terminal end of each cable shall be identified with the structure <br /> identification using the permanent cable identification tags. All cables shall be <br /> terminated utilizing heavy duty tinned copper, compression type ring terminals. <br /> An approved crimping tool shall be utilized. <br /> 3.11 JOINT BONDING <br /> A. All non-welded rubber gasket joints, mechanical joints, flange joints and threaded <br /> joints shall be bonded with stranded copper cable as indicated on the drawings. <br /> The overall length of the conductor shall permit maximum movement of the pipe <br /> joint without transferring any tensile stress to the cable, per pipe manufacturer's <br /> recommendations. <br /> 3.12 GPS COORDINATES <br /> A. The "as-built" GPS coordinates of all components such as test stations, existing <br /> and new, junction box, insulating joints, etc. shall be mapped by the <br /> CONTRACTOR with sub-meter accuracy and provided in a tabular form. <br /> 3.13 ENERGIZING AND TESTING <br /> A. After the contractor has completed the installation of the cathodic protection <br /> system, the system will be energized, tested, and adjusted by the Project <br /> Corrosion Consultant to assure conformance with the specifications. The tests <br /> will include electrical continuity of the pipeline utilizing the circulating current <br /> method, electrical isolation with laterals and other structures as shown on the <br /> drawings, pipe-to-soil potential measurements, anode current output, etc. All <br /> insulating flanges shall be tested with a flange insulation tester such as Gas <br /> Electronics Model 601, or equal prior to backfilling. All bonded pipe sections shall <br /> be tested for electrical continuity prior to backfilling. Any and all deficiencies shall <br /> July 2007 Division III-146 NEI Phase II Water and Sewer <br /> CIP Nos. 7468, 7589, 7590 <br />