Name of Work: < Enter Name of Works Details> Trenching,PLB laying ,OFC Pulling & other associated works for NOFN Project connecting in Gram Panchayats Chilak East and Chilak Westin HIRANAGARBLOCK of District Kathua(ON BEHALF OF BBNL)
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Item Description
1
Excavation of trenches inNormal/Soft soil to astandard depth of 1.65m as specified in laying practices of OF Cable, and backfilling the excavated trenches after laying the PLB pipe with or without protection
2
Excavation of trenches inSoft Rocky soil to astandard depth of 1.65 m as specified in laying practices of OF Cable, and backfilling the excavated trenches after laying the PLB pipe with or without protection
3
LAYING OF PLB UPTO 50mm DIAMETER AND JOINING WITH COUPLER (Material to be supplied by BSNL)1stPipe
4
Pulling of O.F. Cable, and allied works (viz., Replacingcouplers and Back filling in case of Manholes, Sealing of PLB ends, refilling sand, Refixing RCC cover and backfilling in case of Joint chamber/ Manhole). No charges to be paid for opening of Manholes/Joint chambers. upto 48F
5
DWC Pipe (Upto 100mm O.D) laying in trenches
6
DWC Pipe Laying & fixing with GI clamps (on bridge & culverts or external walls of building) as per specifications along with supply of GI clamps (4mm thickness, 25mm width) and all installation materials. Clamp spacing should be approx 1M to take care of the load.
7
Providing CC protection of size20 cmx20 cm in the ratio of 1:2:4 for encasing PLB Pipe / GI Pipe/DWC pipe in Roads, bridges, Crossings and Culverts and forlow depth protection, or on wheel guard of bridge as specified in the construction practices of OF cable construction, including material.
8
JOINTING CHAMBER/HAND HOLESSupply and fixing of pre-cast RCC joint chamber with size 1.2M inner dia x 0.8M depth and ring thickness of 40mm made of standard 1:2:4 concrete mix. It should have split RCC cover (with two halves) of thickness 40mm made of cement concrete mix of 1:2:4. Base should be circular RCC plate 40 mm thick made of cement concrete mix of 1:2:4. Scope includes required excavation, backfilling with clean sand and all above operations including supply of materials. Details as per specification.
9
Supplying, fixing and concreting of routes/joint indicator, painting and sign writing of Route/Joint Indicators, as per specification.
10
Splicing of all the fibers of OF cable laid at every joint within specified splicing loss range (<= 0.02 dB) and making termination at the ends. All materials and labours except Joint Closure to be supplied by Bidder/Vendor (for 24 F)
11
Documentation of Route Index Diagram in Soft and hard copies ( Three sets of each)
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