REPAIR/REPLACEMENT OF BUILDING SERVICES CONNECTION IMPROVEMENT OF EARTING AND CONNECTED WORKS AND EARTHING LIGHTING ARRESTOR AND ALLIED WORKS AT CENTRAL ZONE OFFICERS MD ACCN AND OTM ACCN AREA UNDER GE NORTH BINNAGURI

Taking out old unserviceable cable of any size carefully from trenches after disconnecting electric connection, GI pipe protection, with and including separating serviceable bricks & set aside and removing un-serviceable bricks from site complete all as specified and as directed. Note : The Excavation and earth work shall be measured and paid separately under relevant items of Schedule.

Supply, laying, jointing & testing in trenches or passing through pipe, 1100 volts grade, XLPE insulated PVC bedded, galvanized steel strip or wire armored LT electric power UG cables, heavy duty with stranded aluminum conductor of cross sectional area 16 sqmm 2 core with and including all fixing & connecting accessories such as Aluminum cable lugs, cable gland, nut, bolts, washer etc complete as specified and as directed. (NOTE: GI pipe, bricks for protection etc shall be measured and paid separately under relevant items of this schedule 'A').

All as per ser item No 2 above but of cross sectional area 16 sqmm 4 core

All as per ser item No 2 above but of cross sectional area 25 sqmm 4 core

All as per ser item No 2 above but of cross sectional area 50 sqmm 3.5 core

Digging out incoming and outgoing cables of any sizes from loops near junction box/ feeder pillar box in trenches, cutting burnt out uninsulated portion of cable and relaying /refixing in trenches & returning, refilling the excavated soil and connecting the cables with bus bars including provision of suitable size of aluminum lugs complete all as specified and as directed.

Relaying in trenches or passing through pipe, 1100 volts grade, LT electric power UG cables, of any type/Size with and including all fixing & connecting accessories such as Aluminum cable lugs, cable gland, nut, bolts, washer etc complete as specified and as directed. (NOTE: GI pipe, bricks for protection etc shall be measured and paid separately under relevant items of this schedule 'A').

M&L for Heat shrinkable straight through joint for 3.5 / 4 core cable 25sqmm to 50 sqmm complete all as specified and as directed.

Excavation in trenches in soft/loose soil not exc. 1.5 metre wide and not exc. 1.5 metre in depth and getting out for taking up / laying under ground electric cable complete all as specified and as directed.

Returning, filling in, including spreading leveling watering and well ramming in layers not exceeding 25 cms in depth complete all as specified and as directed.

Removing surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and as directed.

Supply and lay dry river sand filling for under ground cable protection with a layer of 8cm deep before laying and 15cm covering above the top edge of cable after laying complete all as specified and as directed.

Supply and laying sub class B bricks of size 23cmx12.5cmx7.5cm (+/-10% tolerance) for protection of UG cable with width equal to length of bricks as mechanical protection laid dry and flat complete all as specified and as directed.

Laying only Old serviceable bricks obtained from item no:-01 of schedule for protection of LT UG cable complete all as specified and as directed.

M & L for horizontal boring of suitable for 50mm bore steel tubing across the existing road without disturbing the road surface for inserting GI pipe complete all as specified and as directed. Note :- (i) Removal of surplus soil shall be deemed to be include in the unit Rate. (ii) GI pipe will be measured and paid separately under relevant item of Sch 'A'.

M&L for 50 mm bore steel tubing light grade ISI marked for protection of cable including necessary joints complete all as specified and as directed.

M&L for one run of 6 Sqmm 2 Core (Nominal Area) PVC Sheathed multi stranded unarmed aluminum conductor cable LT 1100 volt grade Conforming to IS 7098 FRLS (inner sheet) in existing position including taking down / dismantling of old existing unserviceable one complete all as specified

M&L for one run of 10 Sqmm 2 Core (Nominal Area) PVC Sheathed multi stranded unarmed aluminum conductor cable LT 1100 volt grade Conforming to IS 7098 FRLS (inner sheet) in existing position including taking down / dismantling of old existing unserviceable one complete all as specified

Dismantling of old U/S LT feeder pillar box/LT junction box including PCC/Brick works foundation after disconnecting of all electrical connection complete.

Supply ,fabrication, installation and testing of LT out door type factory made,CPRI Approved, junction box of size 900mmX600mmX400mm (over all dimension) made out of 3.15 mm thick CRCA sheet dully supported with mild steel angle iron of size 25X25X5mm vertical frame and legs with mild steel flat iron 25X5 mm in horizontal sides of the frame with front and back side openable ,single hinged door / shutter with locking arrangement and powder coated finish both internal and external steel surfaces after necessary preparation of steel surfaces including providing PCC (1:3:6) type C2 foundation of size 0.80m X 0.6m X 0.90m depth (0.30m below ground level and 0.60m above ground level ) and connections of all outgoing / incoming existing cable of any size drawing / digging out cable from loops in trenches inclusive of necessary excavation and earthwork as required and relaying the cables including the following fitment accessories all complete as specified and as directed. (a) Copper bus bar of size 600 Amp wrapped with PVC sleeves with maintained the colour code and provision of making holes as required with nuts, bolts & washers for cable connections including hydrographic insulators with nuts & bolts at both ends = 04 nos. (b) Enameled iron danger notice plate of 1.60 mm thick mild steel sheet of size 200 mm X 150mm , white with letters , figures and conventional skull and bones in signal red and fixed with nuts and bolts on door / shutter of JB for LT -01 No.

Supply and fixing aluminum strip of size 25x3.15 mm for earth continuity conductor fixed on PCC block complete all as specified as directed complete all as specified and as directed.

Supply and fixing Copper strip of size 20x3.15 mm for earth continuity conductor fixed on PCC block complete all as specified as directed complete all as specified and as directed.

Dismantling of existing unserviceable loose/disturbed Aluminum strip/GI Strip/Termination rod of any sizes on roof/down conductor fixed on wooden guities /directly on roof including screws etc complete.

Supply & fixing in repairs for 32 x 6 mm galvanised iron strip,earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or fixed to poles or roof with saddle and screw current complete all as specified and directed.

Supply and fixing porcelain insulator of size 65x31 mm and height 30mm with three nos hole including GI bolts and nuts of required size and two nos washer on PCC, fixing strip complete all as specified and as directed.

M & L for PCC work providing PCC type B1 (1 : 2 : 4) with 20 mm graded aggregate in foundation for panel and finishing the surface even and smooth without using extra cement including breaking of old PCC.

Disconnecting electric connection and Taking down of all UG cable from LT Panel/JB of any capacity and model removing of unserviceable spares / accessories for repair/replacement of the same including reconnection of all UG Cable connection with suitable lugs ,nuts & bolts etc. to existing LT Panel/JB and testing complete all as directed. The unit Rate shall be deemed to be included for the following nature of work:(i) Contractor shall provide one Electrician and two helper along with tools. (ii) Spares/Parts for repair will be measured and paid separately as supply only under relevant item of this schedule.

M & L for GI tubing, 20 mm dia bore, Light grade with all fittings laid in trenches including taking down of existing pipes and removal from site complete all as specified and directed.

M & L in repairs Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles/Bldg/panel or any other indicated situation for loop earthing etc. as required 4.00 mm dia galvanised iron or steel wire complete all as specified and directed

Taking down old unserviceable Earthing pit of any type with accessories including removing of demolished material from work site at any distance out side MD land complete all as specified and as directed.

Material and labour for Chemical earthing complete with copper earth plate electrode of size 90cmx60cmx5.0mm buried directly in ground (earth pit not less than 2.25 m deep below the normal ground level) with top edge of plate not less than 1.5m below normal GL connected to copper earth strip 32x6mm,all as shown on electrical plate No. 4 of SSR Part - 1, using 5 Nos alternate layers of charcoal and salt crystal and a final layer of Magnesium sulphate of 5 cm thickness to be provided and connected to earth test point including 25 mm dia GI med grade pipe for watering with funnel and wire meshed and 63 mm dia GI light grade pipe for protection of earth strip and providing water supply connection from nearest water supply point and testing complete all as specified and as directed. Note : (i) The unit rate shall deemed included for earth work in hard / dense soil, PCC (1:2:4) type B-1 chamber, RCC (1:1.5:3) cover 50mm thick reinforced with 8mm dia TMT bars @ 150mm c/c both ways, funnel with watering pipe 25mm dia medium grade, GI protection pipe light grade 63mm dia, and wire mesh complete in addition to item No. 1 (a) to (e) of preamble (notes) under sub - heading earthing, specified on SI. page No. 422 of SSR Part-II. (ii) The earthing pit should be provided with proper earth pit and pit cover. Pit cover should be painted with synthetic enamel paint of approved colour and pit number to be marked on a GI plate above 45 cm from GL as per colour code followed in Station. (iii) If the desired earth resistance is not achieve during testing as per IS the complete earthing shall be carried out by the contractor at his own cost and no extra claim shall be admissible.

M&L for Earthing complete with Copper earth plate electrode 600x600x3.15 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below the ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level, connected to Copper earth strip 20x3 mm dia by means of bolts, nuts, check nuts and washers of brass/copper all as shown in electrical plate No 3 of SSR part-I 2009 connected to lightening conductor all as specified and testing on completion including. Necessary excavation, earthwork, PCC works and CI earth pit cover with watering pipe 20mm dia GI pipe medium grade, funnel with wire mesh and lugs and GI pipe 40 mm dia of light grade, for protection of earth strip complete all as specified and directed. Note: Excavation/PCC/Earth work/Charcoal/ Salt shall be deemed to be include in this unit rate.

M&L for Earthing complete with galvanised steel earth plate electrode 600x600x6.0 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below the ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level, connected to galvanised earth lead wire 4.0 mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or of steel all as shown in electrical plate No 3 of SSR part-I 2009 connected to pole/LT Panel all as specified and testing on completion including. Necessary excavation, earthwork, PCC works and CI earth pit cover with watering pipe 20mm dia GI pipe medium grade, funnel with wire mesh and lugs and GI pipe 40 mm dia of light grade, for protection of earth strip complete all as specified and directed. Note: Excavation/PCC/Earth work/Charcoal/ Salt shall be deemed to be include in this unit rate.

M&L for Earthing complete with galvanised steel earth plate electrode 600x600x6.0 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below the ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level, connected to galvanised earth strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or of steel all as shown in electrical plate No 3 of SSR part-I 2009 connected to pole/LT Panel all as specified and testing on completion including. Necessary excavation, earthwork, PCC works and CI earth pit cover with watering pipe 20mm dia GI pipe medium grade, funnel with wire mesh and lugs and GI pipe 40 mm dia of light grade, for protection of earth strip complete all as specified and directed. Note: Excavation/PCC/Earth work/Charcoal/ Salt shall be deemed to be include in this unit rate.

Taking down old unserviceable Earthing pit of any type with accessories including removing of demolished material from work site at any distance out side MD land complete all as specified and as directed.

Material and labour for earthing with copper earth plate electrode 600 mm x 600 mm x 6 mm thick, (3.15) buried directly in ground vertically to a depth of not less than 2.25 mtr below ground level connected to copper strip of size 20 x 3 mm as earthing lead means of nut, bolts and washers made out of galvanised iron mild steel and 40 mm dia GI pipe "light grade" for protection of earth lead and connected to control board or main switch or as directed by Engr -in-Charge including earthing pit in PCC (1:3:6) type C-1, pre-cast reinforced cover with MS XPM Jalli, RCC 1:1.5:3 cover slab of size 300 x 300 x 100 mm with one handle made out of 8 mm dia round bar 20 mm dia GI pipe light grade for watering funnels , wire mesh and provided charcoal or coke of alternative layers of 15 cm including necessary earth work complete shown in electrical plated No 3 and testing complete all as specified and as directed.

Material and labour for Chemical earthing complete with copper earth plate electrode of size 90cmx60cmx5.0mm buried directly in ground (earth pit not less than 2.25 m deep below the normal ground level) with top edge of plate not less than 1.5m below normal GL connected to copper earth strip 32x6mm,all as shown on electrical plate No. 4 of SSR Part - 1, using 5 Nos alternate layers of charcoal and salt crystal and a final layer of Magnesium sulphate of 5 cm thickness to be provided and connected to earth test point including 25 mm dia GI med grade pipe for watering with funnel and wire meshed and 63 mm dia GI light grade pipe for protection of earth strip and providing water supply connection from nearest water supply point and testing complete all as specified and as directed.

Taking out of old GI Tubing of any grade and size in trenches/floor/fixed to pole for earth protection complete all as specified and directed.

Supply and fixing GI tubing, 32 mm dia bore, light grade with all fittings laid in trenches or fixed to wall including taking down of existing pipes and removal from site complete all as specified and directed.

Supply and fixing test point terminal block made of gun metal or phosphorous bronze, size 75mm x 75mm x 25 mm thick, drilled and screwed including 3 Nos. 8 mm dia. 25 mm long hexagonal head screws, including MS box 2 mm thick of suitable size for protection of test point terminal, including dismantling of old unserviceable test point complete all as specified and directed.

Material and labour for cutting existing steel tubing for additional/ alteration (each cut measured) of size 50 mm dia complete all as directed.

Material and labour for screwing existing steel tubing 50mm dia for taking new branch connection complete all as directed.

Supply and fixing 20mm dia bib tap, self closing type of cast iron or malleable cast iron, galvanised screw for fixing to iron pipe of size 20 mm dia including taking down of existing bib tap and removal from site complete all as specified and directed.

Excavating in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for taking out/laying of under ground cable and getting out in soft/loose strata complete all as specified and as directed

Returning filling in including spreading watering leveling and well ramming in layers not exceeding 25 cm in soft/ loose soil complete all as specified and as directed

Removing surplus excavated soil nexc 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and as directed

Material and labour for checking of existing old earthing pits and lightening conductors and repairs/replacement of GI/Aluminum strips where found corroded and repairs to pits and testing of earth resistance value and pouring salt/charcoal for obtaining earth value below 5 ohm complete all as specified and as directed

Supply and fixing porcelain insulator of size 65x31 mm and height 30mm with three nos hole including GI bolts and nuts of required size and two nos washer on PCC, fixing strip complete all as specified and as directed.

Supply and fixing in repairs Air termination, single pointed, copper rod 12mm dia and 300mm long fixed on copper strip for earth conductivity to ground complete all as specified and as directed

All as per item no 50 above but fixing in repair only

M & L for GI tubing, 20 mm dia bore, Light grade with all fittings laid in trenches including taking down of existing pipes and removal from site complete all as specified and directed.

All as per item no 52 above but of size 25 mm dia

M & L for GI tubing, 40 mm dia bore, Light grade with all fittings fixing on top of the building for fixing of Air terminal including taking down of existing pipes and removal from site complete all as specified and directed.

M & L for Earth pit marking sheet made of MS black sheet of size 150 mm x 150 mm x 6 mm including 16 mm dia rod welded to sheet all as spec and directed

Material and labour for earthing pit in PCC (1:3:6) type C-1, pre-cast reinforced cover with MS XPM Jalli, RCC 1:1.5:3 cover slab of size 300 mm x 300 mm x 100 mm thick, with one handle made out of 8 mm dia round bar including necessary earth work complete all as specified and as directed.