OHE maintenance activities at NTPC siding at Barh in the jurisdiction of SSE/TRD/BKP & MKA at Danapur division for a period of 01 year (2025-26).

Checking & maintenance of cantilever assembly.

Checking & maintenance of 25KV isolator (SP/DP) including earthing heel arrangement if any.

Checking & maintenance of turn outs.

Checking & maintenance of 25 KV OHE on cross over.

Checking & maintenance of section insulator assembly.

Checking & maintenance of Auto Tensioning Device(ATD).

Checking & maintenance of feeder wire

Checking and maintenance of feeder termination and fixed termination anchor.

Checking & maintenance of overlaps(IOLs) & (UIOLs)

Checking & maintenance of all types 25KV OHE jumpers not covered in other items.

Checking & maintenance of Anticreep arrangement. Per Track

Checking & maintenance of 25KV OHE conductors by tower wagon

Checking & maintenance of bonds of various types including cleaning of muffings at OHE mast.

Checking & maintenance of 25 KV OHE free from foreign body including bird nest from portal booms and drop arms etc

Checking & maintenance of all additional insulator.

Erection of Section insulator assembly complete in all respects.

Erection of contact wire splice.

Erection of catenary wire splice.

Erection of various types of insulators.

Cleaning of Insulators.

Supply of structure bond (4.75 m) with nut-bolt.

Erection of structure bond (4.75 m) with nut-bolt.

Supply of rail bond (1.5 m) with nut-bolt.

Erection of rail bond (1.5 m) with nut-bolt.

Supply of Inter track bond (5m) with nut-bolt.

Erection of Inter track bond (5m) with nut-bolt.

Supply of earthing electrode with switching station.

Erection of earthing electrode with switching station.

Supply of Porcelain Stay insulator.

Erection of Porcelain Stay insulator.

Supply of Porcelain Bracket insulator.

Erection of Porcelain Bracket insulator.

Supply of Porcelain 9 Ton insulator.

Erection of Porcelain 9 Ton insulator.

Foundation with muff.

Supply of 160 sqmm different type of jumpers.

Erection of 160 sqmm different type of jumpers.

Drilling of hole of bonds.

Supply of Caution Board, Un-wired Board, Engine Stop Board etc other similar Board.

Erection of Caution Board, Un-wired Board, Engine Stop Board etc other similar Board.

Supply of Retro reflective 25 KV danger Caution board.

Erection of Retro reflective 25 KV danger Caution board.

1 - (C) Hiring of movable crane.

Lumpsum Hiring of crane (10 Ton Capacity).

1 - (D) Foot Patrolling of OHE assets.

Checking & maintenance of 25KV OHE by foot patrolling .

1 - (E) Tree Trimming in all over Division.

Trimming of tree branches to maintain a minimum clearance of 05 to 06 metres from OHE (1 Big Branch consisting of 05 small subbranches).

Breakdown attention by a gang for restoration of 25KV OHE during accidents/unusual occurrences for checking of OHE parameters(one gang consists of 7 staff)

Erection of single bracket assembly with SPS in PB.

Erection of double bracket assembly with SPS in PB.

Erection of Guy rod assembly including mast anchor/guy rod attachment in PB.

Erection of Regulating equipment 3-pulley type with counter weight assembly huide tube for conventional OHE in PB.

Erection of 25KV single pole isolator Assembly in PB.

Transfer of equipment from one mast/support to another in PB.

Adjustment of existing OHE and tower wagon checking in PB.

Dismantling of cantilevers in PB.

Dismantling of Guy rod assembly in PB.

Dismantling of regulating equipment with counter weight assembly in PB.

Dismantling of isolator(SPI & DPI) in PB.

Erection of railway supplied contact wire by dismantling of existing catenary wire under FOBs & ROBs, adjustment & droppering

Concrete for foundation & plinth in other than hard and rocky soil, Erection in NPB.

Supply of PG clamp-1030-3.

Supply of PG clamp-1041

Supply of Retro reflective number plate for OHE structure as per RDSPO specification no ETI/OHE/33A(12/97) REV.8 of size 340x310 mm.

Erection of Retro reflective number plate with supply of MS plate strip & painting & 04 nos. GI Nut bolt & washer at each location.

Supply of galvanised fabricated steel structure for traction masts / TTC/ portals & dwarf masts.

"Erection of galvanised fabricated steel structure for traction masts / TTC/ portals & dwarf masts. "

Supply of Fabricated steel (SPS) work other than OHE Mast.

Erection of Fabricated steel (SPS) work other than OHE Mast.

Foundation(1:3:6) with core filling.

POH of Regulating equipment.

Supply of CU Jumper (50 sqmm - 6m).

Erection of CU Jumper (50 sqmm - 6m).

Supply of dropper .

Erection of dropper .

Marking of rail level, writing of location number at mast, writing implantation stagger and height of contact wire on the OHE mast & Temperature marking of ATD movement (during winter & summer seasons) on masts having ATD.