REPAIR/MAINTENANCE OF TRANSFORMER HT LINE AND HT PROTECTION SYSTEM AND CONNECTED WORK AT BAKLOH CANTT

Amount

Dismantling ACSR or AAC conductor complete of any type and size and removing unservicable conductor from site, complete all as specified.

Excavation in trenches, not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. not exceeding 10 Sqm on plan and not exceeding 1.5 mtr in depth and getting out in hard and dense soil, complete all as specified and directed.

All as per Srl Item No 2 above but depth exceeding 1.5m but not exc 3.00 metres and getting out complete all as specified and directed.

Returning filling in (soil) including spreading, levelling, watering and well ramming in layers n.exc 25cms thick in any type of soil complete all as specified and directed.

Removing excavated materials/ soils, not exceeding 50mtrs and depositing where directed at a level not exceeding 1.50mtrs, complete all as specified and directed.

PCC 1:3:6 (nominal mix) type C-2 (using 40mm graded crushed stone aggregates) as in foundation filling and mass concrete complete all as specified and directed.

Plain cement concrete 1:2:4 ( nominal mix ) type B-1 (using 20 mm graded crushed stone aggregates) as in in lintels upto 1.5m clear span, cills, steps; seismic and other similar ands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs , water troughs and the like including weathering, slightly rounded or chamfered angles and throating, including necessary formwork where required complete all as specified and directed.

XLPE LT insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 1100 volts (Earthed), grade cross sectional area 95 sqmm 3.5 core, laid in trenches or passing through pipes/ ducts or fixed to walls/ poles complete including testing and taking out old unservicable cable, cable covers complete all as specified and directed. Note:- Excavation & Earth work, brick cable cover, GI pipe and sand cushioning shall be measured and paid separetly.

XLPE LT insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 1100 volts (Earthed), grade cross sectional area 120 sqmm 3.5 core, laid in trenches or passing through pipes/ ducts or fixed to walls/ poles complete including testing and taking out old unservicable cable, cable covers complete all as specified and directed. Note:- Excavation & Earth work, brick cable cover, GI pipe and sand cushioning shall be measured and paid separetly.

XLPE HT insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts (Earthed), grade cross sectional area 95 sqmm 3 core, laid in trenches or passing through pipes/ ducts or fixed to walls/ poles complete including testing and taking out old unservicable cable, cable covers complete all as specified and directed. Note:- Excavation & Earth work, brick cable cover, GI pipe and sand cushioning shall be measured and paid separetly.

Relaying of XLPE HT 11 KV cable of size 95 sqmm 3 core in trench/duct/pipe obtained from ser item no 6 as above.

Sand cushioning to protection of underground cables, laid 8 Cm before laying and 15 Cm after laying of cable, and punned to form an overall layer of 18 Cms thick, complete all as specified and directed Note: Punned thickness shall be measured.

Sub class ‘B brick, old size, brick covering laid dry, flat, transversally along the length of cable on sand cushioning, with width equal to the length of the brick including taking out old bricks, complete all as specified and directed.

Mild steel galvanised iron tubing light grade for cable protection as in road crossing, along poles, walls, floors, drain of 80mm size fixed with MS clamps, nuts and bolts required complete all as specified and directed.

Supply and laying of 40mm graded crushed stone aggregate including levelling/spreading complete surrounding /under 2/4 pole structure and panel as directed by Engr-in-Charge. (Note:- Rates are deemed to be included for bricks reqd for retaining the aggregate)

Steel tubular swaged poles complete with base plate 8mm thick welded with pole, finial taper plug, bolt, nut and screws as specified type 410 SP-55 (11m long) including one coat of red-oxide zinc chrome primer and two coats of aluminium paint on surfaces exposed to view and making 30cm wide strips (total 5 Nos) with yellow and black paint alternately on external surface above PCC benching including numbering with black paint and painting with bituminous paint internally complete and externally for portion embedded in PCC including dismantling of old type of poles any length, complete all as specified and directed. Note:- Earth work & excavation and PCC shall be measured and paid under respective Items of BOQ.

Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with mild steel clamps, bolts and nuts of approved size, for HT, 25x20cm size, complete all as specified.

Supply and install drop out lift OFF HT 11 KV, 200 Amps fuse link consisting of channel iron base having 11 KV post type insulators in stack & 2 stack per phase complete with fuse carrier of SRBP tube with heavily tinned non ferrous metal parts and spring loaded phosphor bronze contact complete manufactured as per IS 9385 complete all as specified and directed. Make:- Pactil/ Crompton/ ATLAS

Renewal of vertical type air break switch, gang operated, tripple pole, mechnically operated, outdoor type, with all fittings and accessories mounted on and including HT 11 KV porcelain insulators and steel channel frame, GI operating rod 25 mm dia of suitable length to worked from ground, including locking arrangements , suitable for 11000 volts, 200 Amps current rating complete including dismantling existing air break switch all as specified and as directed.

Supply and straining of Aluminum conductor steel reinforced (ACSR) of any size on HT over head line including necessary binding work, jumpering, maintaining proper sag as per IE rule including cutting of tree branches around the ACSR conductor within area of 5mtr complete all as specified & directed

Unbinding from insulators ACSR conductor any size of HT over head line for repairs, restretching of ACSR conductor to achieve proper sag and rewinding to the insulators using aluminium/ GI wire all as required at site or directed. Note:- Distance between two poles irrespective of distance and no of lengths of conductor shall be considered as a single span.

Cutting/ trimming of tree branches clearing 5 metres horizontal and 5 metres vertical distance from both sides of HT conductor including removing branches from site, complete all as specified & directed. Note:- (i) Clearing branches from both sides of conductor in between two consequtive poles shall be considered as one span irrespective of distance between poles. (ii) Cost of T&P required for cutting and removing branches shall be deemed to be included in rate quoted by bidder.

Structural steel work as in cross arms, bracings, supports, clamp and back plate fabricated from steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed by Engineer-in-Charge and applying two coats of aluminium paint over one coat of red oxide zinc chrome primer including preparation of surfaces and dismantling old structural steel work in cross arms and stacking at site, complete all as specified & directed.

Supplying and laying synthetic Rubber insulated mats 2.5 mm thick for voltage 11 KV HT line for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of size 2m x 1m complete all as specified & directed..

Renewal of cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm to 120sqmm including cutting and removing existing unserviceable joint, including earth work complete, near 2 pole structure / HT Panel board / transformer and taking out loop cable from trench and refilling the trench with excavated material all as specified and as directed.

Renewal of cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95sqmm to 120sqmm including cutting and removing existing unserviceable joint, including earth work complete, near 2 pole structure / HT Panel board / transformer and taking out loop cable from trench and refilling the trench with excavated material all as specified and as directed.

Renewal of cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95sqmm to 120sqmm including cutting and removing existing unserviceable joint, including earth work complete, near 2 pole structure / HT Panel board / transformer and taking out loop cable from trench and refilling the trench with excavated material all as specified and as directed.

Disconnecting the electric supply from the existing RMU/VCB/Transformer/HT poles and meggering the HT under ground cable for its IR value and ensuring the servicebility by HT megger,locating the faults by HT fault finder instrument for any distance and reconnect the HT cable. NOTE:- Earth work included in the quoted rate (ii) Joint kit and HT UG Cable shall be measured and paid separetly.

Renewal of pin type insulator porcelain, vitreous, white/brown or green including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 150mm dia and 150mm height for working pressure 11000 volts grade includng taking down existing insulators and removing from site, complete all as specified.

All as per Srl Item No 29 above but post type insulator includng taking down existing insulators and removing from site complete all as specified and directed.

Renewal of disc type insulator, 145 mm height 255 mm dia suitable for 11000 volts HT grade porcelain vitreous white,brown or green including galvanized mild steel sectional straps 38X5mm, insulator bolts dia 20mm, washers and nuts includng taking down existing insulators and removing from site complete all as specified and directed.

M & L for overhauling i.e greasing, cleaning of GOD and adjustment of its operation complete all as specified and directed by Engineer-in-Charge.

M&L for fixed type top contact for DO fuse units for 11 KV in replacement complete all as specified and directed. Make:- Pactil/ MEI/ ATLAS

M&L for fixed type bottom contact for DO fuse units for 11 KV in replacement complete all as specified and directed. Make:- Pactil/ MEI/ ATLAS

S&F following spares of vertical type GOD 11 KV grade, 200 Amps rating of make - M/s Pactil/ ATLAS/ MEI in position as in repairs including testing after repairs:-

Male contact

Female contact

Tinned copper flexible jumper

MS Jumper carrier

Back connector plate

Renewal of lightning arresters (Set of three) expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp for 11000 volts including taking out old unservicable arrester and removing from site complete all as specified and directed.

Painting to four pole structure made out of steel tubular HT poles, 11m long including cross arms, channels, angle iron support, bracings, clamps, XPM jalli etc. with two coats of aluminum paint superior quality of approved make on surfaces exposed to view above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed.

Painting to two pole structure made out of steel tubular HT poles, 11m long including cross arms, channels, angle iron support, bracings, clamps, XPM jalli etc. with two coats of aluminum paint superior quality of approved make on surfaces exposed to view above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed.

Painting to existing steel tubular HT poles, 11m long including cross arms, channels, angle iron support, bracings, clamps etc. with two coats of aluminum paint superior quality of approved make on surfaces exposed to view and making 30cm wide strips (total 5 Nos) with white and black paint alternately on external surface above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed

Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 metre deep below normal ground level) with top edge of plate not less than 1.5 metre below ground level, connecting to galvanised iron strip 32 x 6mm size (as earth lead strip), by means of bolt, nuts, check nuts and washer of galvanised and earth wire protected by provision of galvanised iron pipe light grade, 40 mm bore including provn of concrete pit in plain cement concrete M-15 type B-1 using 20mm graded crushed stone aggregates with 40mm thick cover of rainforced cement concrete M-15 reinforced with XPM (weight not less than 4 kg/Sqm) and frame of angle iron 25x25x3mm with lugs 2 Nos and with 6mm dia mild steel bar handle made to shape, galvanised iron medium grade 20mm bore pipe for watering perforated at bottom 1.75 metre long placed on top edge of earth plate, common salt and charcoal filling, test point made out of phosphorous bronze with fixing arrangement, funnel, wire mesh and including earth work in any type of soil, returning filling in and removal of surplus soil to a distance not exceeding 50 metre, all as per electrical plate No. 3 of SSR 2009 Part-I and connection to earth test point all as specified and testing on completion.

M & L in replacement for Earth continuity conductor or main earthing lead fixed to walls on batten or recess or chases or buried in ground or drawn in conduit/pipes or fixed to poles or any other indicated situation for loop earthing etc as required 32X6mm galvanised iron strip all as specified.

Dehydration, filtration, heating and refilling of old transformers oil after testing the same for dielectric strenghth not less than 50 KV. Note:- (a) Dehydration and filtration can be carried out at site by dehydration machine otherwise the same shall be got done from the manufacturing workshop of transformers complete all as specified.(b) Contractor shall ensure no wastage of transformer oil.(c) Safety of transformer during filteration shall solely be the responsibility of contractor and any damaged caused to transformer during the operation of filteration shall be made good by contractor at his own and no claim for any expanditure on this account shall be entertained during execution of work or later stage.(d) Contractor shall ensure that the conservator tank are full before starting the dehyderation.(e) Testing of transformer oil for BDV and acidity as per IE rules all as specified and directed.(f) Test results shall be submitted to Engineer-in-Charge equipment wise.

Supply and top up of transformer insulating oil HV grade having die-electric stength not less than 60 KVA. Make: Transoil/Power Oil Savita

M&L for cutting and fixing of chequered plate for 7mm thick for inside sub station/DG panel room openable cable duct with complete fixing arrangement all as specified and directed.

M&L for Do fuse Element stranded silver/Tin coated copper wire soldered joint with ferrule and fire resistant tube type rating 2.5 to 15 Amps complete all as specified.

- ditto- as per srl item No. 45, but rating 20 Amps.

- ditto- as per srl item No. 45, but rating 25 Amps.

Dismantling top cover alongwith conservator tank for filteration of Transformer oil and after draining out transformer oil up to terminal level in situ by disconnecting LT/HT cable copper busbar of earthing strips,replacement of LT/HT bushing and terminal rod of brass gasket, nuts, bolts & washers etc. Refitting top cover & conservator tank after cleaning and filteration, removing the sludge , reconnecting HT/LT cable/conductor and earthing strips,& filteration of tranformer oil including toping up of transformer oil by adding new transformer oil having 60 KV dielectric strength and charging/testing the transformer on load complete all as directed by Engineer-in-charge,for transformer of rating upto 63 KVA capacity. Note : (i) Contractor should make his own arragement of filteration plant at each transformer sites for filteration of transformer oil including provision of electric supply to the filteration plant. (ii) New transformer oil shall be measured and paid separately. (iii) Cost of HT/LT bushing and terminal rod wiil be measured and paid separately . (iv) Filteration of oil will be measured separately.

All as per Srl Item No 48 above but for transformer of rating 100 to 160 KVA.

All as per Srl Item No 48 above but for transformer of rating 200 to 250 KVA.

All as per Srl Item No 48 above but for transformer of rating 300 to 315 KVA.

All as per Srl Item No 48 above but for transformer of rating 400 KVA.

Supply only the following spare parts of transfomer 11 /0.433 KV operated in item no 49 To 54:

HV Bushings for transfomer 11 KV from 63 KVA up to 160 KVA capacity .

HV Bushings for transfomer 11 KV from 200 KVA up to 400 KVA capacity .

HV terminal rod with nut bolts, caps etc for transfomer 11 KV from 63 KVA up to 160 KVA capacity .

HV terminal rod with nut bolts, caps etc for transfomer 11 KV from 200 KVA up to 400 KVA capacity .

LV Bushings for transfomer 11 KV from 63 KVA up to 160 KVA capacity .

LV Bushings for transfomer 11 KV from 200 KVA up to 400 KVA capacity .

LV terminal rod with nut bolts, caps etc for transfomer 11 KV from 63 KVA up to 160 KVA capacity .

LV terminal rod with nut bolts, caps etc for transfomer 11 KV from 200 KVA up to 400 KVA capacity .

LT Brass connectors 12mm .

LT Brass connectors 20mm .

Disconnecting HT/LT and earth termination connections from transformer, taking down the transformers from plinth/platform and loading into the vehicle; transporting the same to workshop for carrying out necessary repairs and back ,reconnecting HT/LT connections at site and charging the transformer on load, commissioning and testing including meggar test at site all as directed by Engineer - in - Charge

Draining out transformer oil, dismantling top cover alongwith conservator tank, taking out core assembly after disconnecting connections, rewinding with same size and type of copper conductor and number of turns and insulating material such as paper insulator sleeves, heating etc. Putting back the core assembly into the tank after removing sludge and replacement of HT & LT bushing complete with brass terminal, refixing top cover and conservator including replacement of gasket, nut, bolts & washers (filling new transformer oil having 60 KV dielectric strength and carring out type tests as per IS 2026 in presence of Engineer - in - charge for capacity 315 to 400 KVA. Note:- (i) New transformer oil and its filling shall be measured and paid separately under relevant items of schedule. (ii) Cost of rewinding material, insulation material and spares of transformer shall be measured and paid separately under relevant item of Sch . (iii) Replacement of spares will be on required basis all as directed by Engr-inCharge.

Painting of transformer externally (indoor/ outdoor type) with one coat of smoke grey colour synthetic enamel paint using spray gun over the existing paint after cleaning and removing the dust and dirt and cleaning with thinner and scrapper/ sand paper and preparing surface for painting complete including writing SM Nos on transformer body with letters 50mm high with white synthetic enameled paint complete for transformer of capacity upto 63KVA without disturbing the supply including preparing surfaces of plateform and applying one coat of colour wash complete all as specified and directed. Note: Write with white paint on body of transformer " Date of Dehydration". ............................, "Date of Top Up of Transformer Oil".

All as per Srl Item No 56 above but 100 to 160 KVA transformer.

All as per Srl Item No 56 above but 200 to 250 KVA transformer.

All as per Srl Item No 56 above but 300 to 315 KVA transformer.

All as per Srl Item No 56 above but 400 KVA transformer.

S & F in replacement of breather assembly with silica gel suitable in situ for suitable of 63 to 250 KVA transformer of any rating as directed by Engineer-in-Charge.

M&L for replacement of self-indicating Orange to Green Silica Gel granules from transformer breather assembly.

Material for reinsulation of copper windings (LT and HT), Class B, with Electrical Grade Insulating Kraft paper all confirming to IEC-60554-3-5 (1984) with same numbers/grade of copper enamelled conductor with same size of turns as per manufactures's specification and testing and commissioning transformers complete all as directed.

Material for replacement of burned or rusty core with 53 grade imported CRGO material.

Upkeep of HT out door structure by removing grass, shrubs, trimming branches of trees near to structure removing cleaning, screening for mud etc and relaying of same stone aggregate complete all as specified and directed.

Deduct Credit Amount as per Schedule of credit as details given on Srl Page No 27 of tender doucments.

M/S JATINDERA ENTERPRISES

JCC ENGINEERS PRIVATE LIMITED