REPAIRS TO LT DISTRIBUTION SYSTEM, UG CABLES, PANELS, MCCBS AND OTHER MISC WORKS AT AF STN PUKPUI, LUNGLEI UNDER AGE (I) KUMBHIRGRAM

Amount

Material and Labour for taking out old unsv cable of any size , GI pipe protection, bricks including separeting serviciable bricks & set aside and removing unsrviceable bricks and set aside for reuse complete all as specified and as directed

Supply and laying or passing through pipe XLPE cable insulated galvanised steel strip or wire armoured, electric power cable (heavy duty) 1100 volt grade with stranded aluminium conductor of size 95 sqmm 3.5 core complete all as specified and directed. Make: Polycab/Richa/Mescab

All as per srl item No 2 but size 70 Sqmm 3.5 core

All as per srl item No 2 but size 25 Sqmm 3.5 core

All as per srl item No 2 but size 10 Sqmm 2 core

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth and getting out in any type of soil complete all as specified and directed.

Returning, filling in including, spreading, levilling,watering and well ramming in layers not exe 25 cm thick each complete all as specified and directed.

Removing excavated material to a distence not exc 50m and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed.

Material & Labour for Sand cushioning to under ground cable providing with a layer 8cm thick before laying the cable and 15 cm thick after laying the cable complete all as specified in clause 19.75 of SSR 2009 Part-I ( Specifications) complete all as specified and directed

Supply and laying for sub class B brick of size 225mm x 115mm x 65mm for protaction of UG cable with width equal to length of bricks as mechanical protection laid dry and flat complete all as specified and as directed.

Reifixing of existing bricks/ cable cover any type of good condition after the cleaning complete all as per specified and directed

Re-laying only LT cable any sizes obtained from item No 01 with all fixing & connecting accessories such as Alluminium cable lugs, cable gland, nut, bolts, washer etc complete as specified and as directed.

Supply and fix GI Tubing (light) grade with all fittings, laid in trenches, or fixed along with walls/poles including brackets, nuts & bolts etc. bore of pipe 40 mm complete all as specified and directed.

Supply, fixing and testing of heat shrink LT cable straight through jointing kit suitable for 1100 volts grade 70-120 Sqmm, 3.5/4.0 core, complete all as specified and as directed. MAKE: RAYCHEM/3M/DENSONS

Supply, fixing and testing of heat shrink LT cable straight through jointing kit suitable for 1100 volts grade 25-50 sqmm 3.5/4.0 core cable complete all as specified and as directed Make : Raychem/ 3M / Densons.

Supply, fixing and testing of heat shrink LT cable indoor/out door jointing kit suitable for 1100 volts grade 25-50 sqmm 3.5/4.0 core cable complete all as specified and as directed Make : Raychem/ 3M / Densons.

Supply, fixing and testing of heat shrink LT cable indoor/out door jointing kit suitable for 1100 volts grade 70-120 sqmm 3.5/4.0 core cable complete all as specified and as directed Make : Raychem/ 3M / Densons.

Dismantling of earth GI wire/ACSR conductor any size/type from service feeder or distributor panel/concrete pole or steel tubular pole.

Supply and fixed in replacement ACSR aluminium conductor. steel re-inforced for LT lines on concrete poles,stretching without kinks and bends binding with and including binding wire complete all as specified and directed.Note-wessel type ACSR for phase RYB & Squirrel type ACSR for Neutral complete all as per specified and directed

Refixing of ACSR Item no 18 as per side requirment complete all as specified and directed.

Material and labour for gang operated device( GOD) HT 11 KV outdoor type suitable for vertical mounting fixed type complete with 12 insulators and frame with operating mechanism( including GI pipe medium grade 25mm dia pipe,necessary supports) worked from ground level complete with locking arrangements including pad locks with key of rating 200Amps after taking out unsv one complete all as specified and directed. (Make Jayashree/Jayapuria/BHEL/GODREJ)

Supply and fix pin type, porcelain, vitreous, brown, including one galvanised mild steel spindle, two galvanised iron washer and one galvanised iron nut, 100mm height and 65 mm dia for 1100 volts grade all as specified and directed.

Material and labour for restraining of overhead ACSR conductor of any size of 5 conductor on pole after disconnecting all jumpering connection & binding of insulators and redoing all jumpering connection and insulator binding with aluminium conductor providing required T&P all as specified and directed

Material and labour for preparation of old painted surfaces of steel tubular pole incl cross/arms and painting with two coat of aluminium paint over a coat of red oxide primer after cleaning/scrapping of existing rusted surface incl cross arms, clamps etc for 8.5/9.00 meter long single pole complete including marking of pole No with white paint on black colour background with all arrangement for ladder etc all as specified and directed.

Material & Labour for painting of LT panel outdoor/indoor /LT feeder pillar boxes off sizes removing existing old paint with the help of sand/emery paper etc. Preparing surfaces externally including cleaning etc. Applying externally one coat synthetic enamel grey paint. including cleaning and surface dressing upto 25cm depth around 1 mtr of the panels complete all as specified and directed by Engr-in-charge.

Material and labour for repair to any type of existing LT Panel board (indoor/ outdoor) with cutting necessary rusted portion of MS Sheet Plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment with riveted, bolted or welded attachment providing MS Sheet of 2mm/3/15 mm of existing size and hinges to broken doors etc fixed with welding complete all as directed.

Material and labour for repair to any type of LT Panel board with Joist, channel, angle, or tee sections, fixed independently, without connecting plates, etc fixed with welding complete all as directed.

Supply and fixing in replacement of MCCB 4 pole 200 to 250 Amps 36 KA, thermal megnetic release for replacement of MCCB/Main Switch connected with suitable thimbles with nuts,bolts and washers etc including additional/alternation for fixing and connection of MCCB all as directed by Engr-in-Charge. Make : L&T/Legrand/Havells/ABB

All as per srl item No 28 but 125 to 160 Amps

All as per srl item No 28 but 43 to 63 Amps

Supplying and fixing 1100 volts grade heavy duty cable PVC insulated aluminium conductor, served with inner sheathing of PVC tape and overall PVC sheathed in service connections suspen ded by insulating hangers not more than 1 metre apart including4mm suspension wire, one twin core cable flat or circular size 10 Sqmm complete all as per specified and directed

All as per srl item No 31 but size 16 Sqmm

Centrifuging (filteration/dehydration) of transformer oil including checking initial and after filteration Dielectric Strength of oil for transformers, Isolation transformers and voltage stabilizers located in various places of technical and domestic area with suitable machine having filteration, heating and pumping facility to improve the dielectric strength/insulation value of oil. Note :- (i) Di electric strength of oil after filteration/dehydration shall not be less than 50 kv. (ii) Oil for toping up shall be measured and paid separately under relevant item of this schedule (iii) The contractor will take shut down orders in writing atleast two days before from Engr-in-chagrge before commencement of work. (iv) The dielectric strength of oil shall be tested before and after filtration and necessary test results shall be submitted to the Engr-in-chaerge. (b) Filtration /dehydration of transformer oil shall be carried out at the location where transformer is installed under the Lunglei and necessary filter/dehydration plant having pressure gauge, hour meter, temperaturature gauge to be brought at site by contractor including electric supply arrangement to run the dehydration equipment and rate deemed to be included in the quoted rate.

Material and labour for topping up/replacement of transformer oil with new transformer oil suitable for working voltage 11000 volts grade including necessary dehydration to achieve dielectric strength min 60 KV at 2.5 mm gap complete all as specified and directed.

Material and labour for replacement of breather assembly made with polycarbonate base and clear acylic glass of size min 50mm dia, min 120 mm long or suitable size as per site requirement for transformer complete all as specified and directed.

Material and labour for replacement of transformer temperature gauge dial type having temp range 0 to minimum 120 degree celcius complete all as specified and directed.

Material and labour for openning of top cover at situ or at wksp by unscrewing all nuts, bolts & washers, draining out transformer oil upto required level and keeping in clean container for replacement of HT/LT bushings, for lifting of core assy, for cleanning/repair and refixing complete with new cork sheet gasket, existing/new nuts, bolts & washers for transformer indoor/outdoor type, refilling of oil all as specified and directed for transformer capacity upto100 KVA, 11/0.433 KV volts grade. (Note:- HT/LT bushings, Studs, Brass stud, Nuts, bolts & washers required shall be measured and paid separately under relevant items of the schedule)

Material and labour for replacement of transformer porcelain bushing outdoor/ indoor type in situ/wksp suitable for 11 KV grade complete with brass studs, rubber bush, washers, nuts, checknuts and cork sheet gasket for the rating of 100 KVA,11/0.415 KV transformer complete all as specified and directed.

Material and labour for replacement of transformer LT porcelain bushing indoor/outdoor type in situ/wksp suitable for 1100 volts grade complete with rubber bush, washers, nuts, checknuts and cork sheet gasket for the rating of 100 KVA, 11/0.433 KV transformer complete all as specified and directed. Note:(i) Brass Stud shall be measured and paid separately under relavant item

Material and labour for replacement of brass stud suitable for HT 11000 volts grade with con & rubber washer, double Brass nuts & brass washer at both end of stud for Tfr cap 100 KVA

Taking out manually defective transformer of capacity 100 KVA portation by vehicle to workshop n. exc 40 KM and reinstallation at original position after repair or Shiting of transformer from present location to original location including connection of all HT/LT cabes, earthing and earthing strip and testing all as specified and directed. (Note: a) Rate deemed to included for disconnecting and reconnecting of necessary HT/LT cable/ACSR, earthing connection before and after installation)

Material and labour for lifting the transformer core carefully after dismantling terminal connections from core to HT/LT bushings, tap changer assy, drainout all oil and keeping in clean container, dismantling defective HT & LT coils from core for rewinding, and reassembling complete with HT/LT coils to core, required necessary numax paper insulation, insulating press board, precompressed board size of 6mm/3mm/1.5mm/1mm, varnishing, heating to achive insulation level not less than 1000 megaohms at both HT & LT side, core at transformer chamber, tap changer assy, terminal connection, top cover with new cork sheet gusket, required existing/new nuts, bolts & washers, filling transformer oil, testing after repair complete all as specified and directed for the 100 KVA, 11/0.415 KV transformer. Note:- (i) Opening of top cover, Rewinding of HT/LT coils, transformer oil, nuts, bolts & washers, HT/LT busings, required shall be measured and paid separately under relavant items of the schedule. (ii) Test result shall be kept in record duly signed by all concerned (iii) Testing record will be prepared by contractor.

Material and labour for rewinding of HT coils suitable for 11000 volts grade with new DPC/super enamelled copper wire having Class-F insulation as per existing size and turns for capacity of transformer 100 to 400KVA

Material and labour for rewinding of LT coils suitable for 1100 volts grade with new DPC /super enamelled copper strip having Class-F insulation as per existing size and turns for capacity of transformer 100 to 315 KVA

MS AFTAB LASKAR (BID ID -3174403)