CA NO CWE SGNR 57 Of 2021-22 REPAIR/MAINT OF 33/11 KV SUB STATION HT OH LINES, CABLE AND OTHER CONNECTED WORKS AT MIL STATION LALGARH JATTAN (2ND CALL)

Amount

Disconnecting the incoming and out going electric cable from both sides of burnt/defective transformer of any make and any type, upto 400 KVA including all acessories, from pole (pole mounted), plinth (plinth mounted ) by any means like mechnical pully or crane including loading into road vehicle, transporting from site to workshop for repair, draining out the transformer oil, dismantling complete and taking out the core assly and removing burnt out winding, dehydrating the core assly, reassembling transformer after rewinding and repair, replacement of complete gasket set, refilling the oil duly filtered/ dehydrated, topping up with new oil, carrying out routine & bring back to site after repair, unloading at site including re-installation connections, testing and commissioning complete as per site requirement all as directed by Engineer-in-Charge Note: (i) Replacement of major spare parts copper wire shall be measured and paid separetely under respective item here-in-after. (ii) If any damage to transformer/OH line/ cables occur during handling, transportation or during hosting/ lifting the same shall be rectified by the contractor without any extra cost to department.

M & L for rewinding of HT/LT coils of transformer with super enamelled best quality copper winding wire of appropriate gauge alongwith allied material complete all as specified & directed by Engineer-in-Charge.

M & L for rewinding of HT/LT coils of transformer with cotton braided Aluminium winding wire/strip of appropriate gauge alongwith allied material complete all as specified & directed by Engineer-in-Charge.

S&F in replacement of Transformer HT bushes 11 KV with rod assembly of metallic alloy (brass gun metal) of suitable dia and length with nuts , washers, packing, oil sealing bushes for transformer of following capacity complete all as specified and directed by Engineer-in-Charge.

25 KVA to 100 KVA

125 KVA to 250 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

S&F in replacement of Transformer LT bushes, 440 Volt with rod assembly of metallic alloy (brass gun metal) of suitable dia and length with nuts , washers, packing, oil, sealing bushes for transformer of following capacity complete all as specified and directed by Engineer-in-Charge.

25 KVA to 100 KVA

125 KVA to 250 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

S&F cork sheet gasket( for top cover) of transformer of any capacity complete all as specified and directed by Engineer-in-Charge.

Dehydration and filtration of existing transformer oil for transformer of any capacity using centrifugal plant to eliminate foreign particles and to improve di-electric strength not less than 60 KV for 1 minute in 2.5 mm electrode gap as per relevant IS dielectric strength complete all as specified and directed by Engineer - in - Charge. Note :- Transformer oil required for topping up shall be measured and paid for separately under respective item of BOQ.

Supply and filling of fresh transformer oil confirming to IS 335 having di electric strength not less than 60 KV in existing transformers installed at different locations complete all as specified and directed by Engineer-in-Charge.

Material and labour for replacement of breather assly transparent plastic body with top and bottom portion pressed with metallic cover, filled with silica gel blue in colour and suitable for fixing on existing pipe of size 15/20/25 mm dia with suitable reducer/ connectors etc as per site requirement/ capacity of transformer complete all as specified and directed by Engineer-in-Charge. NOTE :- Rate quoted shall be deemed to include the cost of modification if any required to fix on existing MS pipe.

Supply and fixing in replacement of defective Gun Metal stop cock/gate valve 25mm dia and plug fixed to drain pipe of transformer of any capacity including testing against leakage to the entire satisfaction complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in replacement of transformer temperature gauge 110mm dia heavy duty 0-100 degre centigrade with thermostat built in switch complete all as specified and directed by Engineer-in-Charge

Supply, fixing, testing and commissioning in replacement of air release plugs suitable for existing transformer of any size and any make complete all as specified and directed by Engineer-in-Charge.

Supply, laying, jointing testing and commissioning of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade of cross-sectional area 120 Sqmm, 3 core, IS 7098 marked, suitable for HT 11 KV(E) system , laid in trenches / ducts / encased in GI pipe / fixed to pole complete all as specified and directed by Engineer-in-Charge. Note : Excavation and earth work, PCC Cover protection, sand cushioning and GI protection pipes shall be measured and paid separately under respective item of BOQ.

Excavation in trenches, not exc 1.5 m wide and n. exc 1.5 m depth; or n exc 10 Sqm on plan and n exc 1.5 m in depth for foundations of poles, struts, stays etc. or laying underground cable etc. in soft/loose soil, & getting out complete all as specified and directed by Engineer-in-Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers n.exc 25cm thick complete all as specified and directed by Engineer-in-Charge

Removal of excavated surplus soil to a distance n.exc 50m and depositing where directed at level not exceeding 1.5 m above the starting point complete all as specified & directed by Engineer-in-charge .

S&F un-reinforced precast concrete cable cover class HV, type-1, with peak, size 300mm x 180mm x 40mm laid flat length of cover across the length of cable complete all as specified and directed by Engineer-in-Charge.

M & L for sand cushioning with locally available sand to under ground cable below & around the cable gently punning after laying the cable complete all as specified and directed by Engineer-in-Charge. Note : Thickness after punning shall be considered for payment.

Supply, fabricating, fixing structural mild steel channel angle iron, flat iron and brackets etc for fabrication of cross arms, bracings, supports, D- clamps stiffners, eye hooks, bolts, pole clamp and back plates incl nuts, bolts and washers welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed complete all as specified and directed by Engr-in-Charge. Note :Unexposed surface of steel sections shall be applied one coat of red oxide primer and exposed surface shall be applied one finishing coat of aluminium over a coat of red oxide primer. cost of the same is included in the unit rate of the item.

M & L for PCC (1:4:8) type D-2 using 40mm graded stone aggregate as in foundation & mass concrete including necessary form work and fair finishing to exposed surfaces complete all as specified and directed by Engineer-in-charge

M&L for PCC (1:3:6) type C-1 using 20mm graded stone aggregate for coping of poles / struts/ stays etc including necessary form work complete all as specified and directed by Engineer-in-Charge.

Material and labour for HT 11KV XLPE cable fault finding with the help of fault finding pin point location machine complete all as specified and as directed. (Note: Fault will be located and measured in 500 meter irrespective of number of fault located) complete all as specified & directed by Engineer-in-Charge.

M&L end termination cable jointing kit for 11 HV (earthed) grade cable end termination heat shrinkable outdoor type cable jointing kit suitable for 11 KV (E) 50 sqmm to 95 sqmm x 3core XLPE armoured aluminium conductor complete all as specified & directed by Engineer-in-Charge.

M&L end termination cable jointing kit for 11 HV (earthed) grade cable end termination cold shrinkable outdoor type cable jointing kit suitable for 11 KV (E) 120 sqmm to 185 sqmm x 3 core XLPE armoured aluminium conductor complete all as specified & directed by Engineer-in-Charge.

M&L cable jointing kit for 11 HV (earthed) grade cable for indoor termination heat shrinkable indoor type cable jointing kit suitable for 11 KV (E) 120 sqmm to 185 sqmmx 3 core XLPE armoured aluminium conductor complete all as specified & directed by Engineer-in-Charge.

M&L cable jointing kit for 11 HV (earthed) grade cable for straight through jointing kit suitable for 11 KV (E) 120 sqmm to 185 sqmm x 3core XLPE armoured aluminium conductor complete all as specified & directed by Engineer-in-Charge.

M&L cable jointing kit for 11 HV (earthed) grade cable for straight through jointing kit suitable for 11 KV (E) 50 sqmm to 95 sqmm x 3core XLPE armoured aluminium conductor complete all as specified & directed by Engineer-in-Charge.

Supply, install, testing and commissiioning in replacement of 11 KV outdoor type gang operated air break switch triple pole suitable for verticle mounting complete with explusion fuses, GI operating rod of suitable length for operating mechanism worked from groundlevel complete in both OFF and ON position, for current rating upto 200 Amp, each pole consist of galvanised steel base HT insulators as per BSS/ISS non ferrous knife and spriong loaded contacts, arcing horns of adequate section to brake magenetizing current of the transformers. All ferrous parts hot dipped galvanised and non ferrous parts heavelly tinned to withstand weathe complete all as specified & directed by Engineer-in-Charge.

Supply & Fix in replacement pin type insulator of 11 KV, 150mm height, 150mm dia including necessary hardware complete all as specified & directed by Engineer-in-Charge.

Supply & Fix in replacement Disc type insulator, ball and socket type, white brown or green for 11 KV, 150mm height, 150mm dia of bolt 20mm including necessary hardware.

Labour only for re-laying one layer of used cable protection cover of any size (Old cover obtained from item of taking out cable here-in-after) for cable protection, laid flat and dry in trenches over the cable , perpendicular to the direction of cable complete all as specified and as directed by Engineer-in-Charge.

Taking out old unserviceable under ground HT XLPE/PVC cable of any size from trenches/ wall/roof/road/pipe/pole including taking out of brick layer / cable covers from trenches etc including serviceable cable protection cover stack for reuse and relaying the same after detacting the fault complete all as specified and as directed by Engineer-in-Charge. (Earth work shall be measured and paid for separately under appropriate item).

Laying only old retrieved sand of any type from excavation of HT cable complete all as specified & directed by Engineer-in-Charge.

S & F replacement GI pipe light grade laid in trenches / fixed to pole / wall for cable protection of following size 50 mm complete all as specified & directed by Engineer-in-Charge.

S & F replacement for GI pipe light grade laid in trenches / fixed to pole / wall for cable protection of following size 80 mm complete all as specified & directed by Engineer-in-Charge.

Earthing complete with galvanised steel earth plate electrode 600mmx600mmx6 mm buried directly in ground vertically to a depth not less than 2.25 meter below normal ground level connected to GI strip 32x6 mm dia by means of bolts, nuts, check nuts and washers complete including earthing pit, Chemical compound, Earthing lead 32 x 6 mm dia up to 7.5 m, 20 mm dia medium grade GI watering pipe, G.I. protection pipe 40mm dia eath pit in PCC 1:2:4 type B-1 using 20 mm graded stone agggragate RCC pit cover including earth work complete all as shown electrical plate No-5 of SSR-2009 (Part-I) NOTE:- The unit rate shall include for excavation & earth work in any type of soil/strata, PCC 1:2:4 type B-I for pit & RCC 1:2:4 type B-I for cover with 8mm dia CTD Bar @150mm C/C both way, funnel with watering pipe 20 mm dia medium grade, 15mm dia light grade GI pipe up to 7.5 mtr long, complete all as specified & directed by Engineer-in-Charge.

Supply and fix in replacement 11 Kv polymer disc insulator on elctric pole complete all as specified & directed by Engineer-in-Charge.

Supply and fix in replacement 11 kv polymer Pin insulator on electric pole complete all as specified & directed by Engineer-in-Charge.

Supply and fix in replacement aluminum conductor steel reinforced ACSR conductor for jumpers and jointing HT OH line complete all as specified & directed by Engineer-in-Charge. ----------------------------------------------------------------------------------------------------------- Note : A sum of Rs. 115428.00 will be deducted on account of credit for taken down material. Please refer details on Srl Page No.22 (Schedule of Credit) of Tender documents.

GURDEEP SINGH AND COMPANY