Supply, Installation, Testing and Commissioning of AC Interference mitigation measures for 681 Km of WRPL Pipelines Gp01 Chaksu to Mathura

Group-1 Chaksu-Mathura section

Solid State Decoupling Device: Supply of Solid State Diode Decoupling Device (min 5 kA @ 30 cycles) of approved make including required length of cable as per specifications

Installation of solid state decoupling device as per specifications including terminating the cables in the TLP box with cable lugs, sealing material, laying of cable, testing & commissioning of Zinc anodes etc. all complete with required material, excavation, backfilling etc. as per specification and directions of Site Engineer/ Engineer-in-Charge. Solid State Decoupling Device

Test Lead Point - Type DAC (With Ingress Protection IP:55) :Supply, installation, testing & commissioning of Test Lead Point (TLP) fabricated MS Sheet with hinged front door, Heavy Guage MS pipe 100 mm nominal diameter, Phenolic laminated terminal plate, brass terminal bolts, neoprene gasket for front door, vandal proof concealed lock, etc as per latest revision of Standard AFC drawing (9200-99900-404-603-00 : STD-483). The work includes providing requisite concrete foundation of 600 mm x 600 mm x 800 mm at site, including MS hard pipe for cable entry through foundation, erection of the TLP over concrete foundation, termination of cables to the brass terminal bolts inside TLP box, jointing the cables to pipe (using cad welding/ pin brazing technique), repairing the damage to coat & wrap (with coating repair etc.), back filling the trenches, cleaning the site, applying epoxy paint / powder coating etc. The work also includes supply, installation, laying & termination of all XLPE, Cu cables of required length (as per site conditions) and size, lugs etc. The work includes supply and fixing of a non-corrosive name plate containing the details like KM location, identification, TLP No., direction of flow, connection scheme, type etc., on the side of the TLP box, etc. The name plate shall also include the details of corrosion coupon wherever installed, all as per the direction and specification detailed in the document complete with tools, tackles & other necessary requirement. The work complete in all respects including all materials, tools, tackles, labour as per tender specifications, AFC drawings & directions of the Site Engineer/Engineer-In-Charge.

Corrosion Coupon:Supply and Installation of prefabricated CS corrosion coupon with 1 sq. cm bare metal with 2 numbers 4 sq. mm lead of minimum 10 m long lead in a sdistance of 0.5 m from the pipeline inclusive of cable & terminating the cable in the TLP terminal. The corrosion couponf are to be installed with specified test lead points for which prior apporval to be obtained from owner. The item also incluseds supply, installation, laying & termination of all CU cables of required length (as per site condition) and size as mentioned in the standard drawing, toggle switch, cable glands and lugs etc. , complete in all respect as per the direction and specification detailed in the documetn complete with all tools , takles & other necessary requirement for preparation of the coupon . The work complete in all respect shall include supply of all the labours, tols etc. compete as per the direction of site engineer/engineer in charge.

Supply,Laying, installation, testing and commissioning of Copper Mitigtor of size 6 AWG (Equivalent to 16 mm2) and specifications mentioned in SCC-A Technical. Work Shall include excavation in all kinds of soil, both wet & dry condition (except hard rock requiring blasting, chiselling / pneumatic drilling) for trenches, pits etc. up to pipeline depths (botttom of pipeline) including shoring, strutting (if necessary), trimming of sides of the trenches, dressing, ramming and levelling the bottom of the trenches correct to level, grade etc. including backfilling the trench, job complete in all respects, including all labour and materials complete as per drawings, specification and directions of Site Engineer / Engineer-in-Charge.

Supply of XLPE insulated , PVC sheathed cable, 1100 v grade conforming to IS: 7098 (P-1) as per specifications and approved make : Copper Cable size 1cx25 sq.mm Armoured

Cable Laying Laying of all type of cables LT (PVC / XLPE / Armoured/Unarmoured/Power/ Control/ Signalling) in trenches, in cable racks, in trays, in protective pipes, poles,columns, in conduits, in panels and on structures etc.;including the supply and installation of all required materials such as fixing clamps ,screws, cable straps, tags etc. as required (other than the supply of the conduits, cables, pipes, cable racks, trays, poles, structures and panels) complete in all respect, including cost of all labour, tools, consumable materials etc. and cutting the cables in required lengths as per drawings, specification and directions of Site Engineer / Engineer-in-Charge: Power cables LT : OD above 20 mm and upto 40 mm

EARTH STRIP / WIRE / ROPE / CABLE - Supply, installing and testing of earthing strip/wire/rope/cable for completely making the earthing grid system by supplying, laying the GI / Cu strip and making all the necessary welding joints, connecting to the earthing electrodes and existing earthing grid etc., complete as per drawings, specifications and directions of the Site engineer/Engineer-in-charge, including the cost of all labour, tools, materials, etc. complete in all respect: 40 mm X 5 mm G.I. earthing strip