REPAIR/ REPLACEMENT OF ELECTRIC POLES, CONDUCTORS, ETC AND OTHER EXTERNAL ELECRIFICATION WKS FROM SANKOO SUBSTATION TO THE MIL STN GARRISON KHUMBATHANG UNDER GE KHUMBATHANG

Amount

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth and getting it out for laying of cable / pole etc in hard/dense soil

Returning, filling in, including spreading, leveling watering, and well ramming in layers not exc 25 cm in hard/dense soil all as directed.

Removing excavated material n.exc 50m and depositing where directed at a level exc. 1.5 cm above the starting point all as directed.

M&L for stone dust sand cushioning to UG cable laid in trenches all as specified and directed.

Supplying and laying unreinforced precast concrete cable cover, class HV, type 1 flat of size 300mm x180mm x 40mm placed perpendicular of the cable complete.

Supply laying & testing in repair cable XLPE insulated screened PVC bedded, galvanized steel strip armoured, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts grade, earthed system of size 3 core 120 sq mm.

Supply & fixing HT cable route marker made out of cast iron including PCC(1:3:6) 15 cm x 15 cm x 15 cm for the foundation of markers all as specified by Engineer-in-Charge.

S&F in repairs cable end joint 120 to 185 Sqmm 3 core XLPE 11KV HT Cable heat shrinkable indoor type complete all as specified and directed.

S&F in repairs cable end joint 120 to 185 Sqmm 3 core XLPE 11KV HT Cable heat shrinkable outdoor type complete all as specified and directed.

S&F in repairs cable straight through joint 120 to 185 Sqmm 3 core XLPE 11KV HT Cable heat shrinkable complete including necessary excavation and earth work all as specified and directed.

M&L for services for HT overhead conductor fault location for 11 KV, 3 phase manually complete all as directed

M&L for services for cable fault location for 11 KV, 3 core XLPE Cable 95 sqmm to 185 sqmm with the help of HT cable fault detector machine complete all as directed

Taking out the HT 11 KV metalclad Vaccum circuit breaker of capacity 630 A, 11000 volts,3 ph, 50 Hz, 350 MVA of any make and type from the cubical panel, for repairs/overhauling and servicing including replacement of wornout parts comprising the following works. (a) Removing the complete fixed contacts, moving contacts, cleaninig the contacts,removing the fittings and fixing back to the breakers after adjusting the pressure (b) Checking charging motor, motor relay, anti pump relay of the breaker, lubricate and align properly for smooth and perfect operation (c) check and service the operating mechanism closing mechanism, and tripping mechanism including spring pressure, position etc (d) checking, setting of the movement of the trolly of breaker lubricate it adjust the stopper bolt/lever for proper functioning of the breaker (e) check the auxilliary switch, shunt trip assembly, closing / Trip solenoid, limit switch and complete contol wiring of the breaker and repair the same for effective functioning of the breaker (f)Testing of IR value with the help of meggar and commissioning the HT vaccum circuit breaker all as specified and as directed by Engr-in-charge Note:- VCB spares shall be measured and paid seperatly under relevent item. However other than mentioned spares in this schedule if required for smooth functioning of VCB, cost of the spares deemed to be included in quoted rates.

Supply & Fixing the following parts to the vaccum circuit breaker of cap 630 A , 3 phase, 11000 volts, 250 MVA all as per exsisting make and type

(a) Moving contact

(b) fixed contact

(c ) Arc Shield

(d) Charging motor

(e) Auxiliary switch

(f) latch switch assly

(g) Closing soleniod

(h) loading Spring

Over hauling and testing of secondary injection of over current and earth fault relay of HT VCB 11 KV panel on each multiple setting , readjustment and calibration the same complete, checking of control wiring including testing on completion all as specified .

Overhauling and testing of primary injection by artificial load through CTs on each multiple setting of over current and earth fault relay of HT VCB 11 KV, testing CTs polarities , relay calibration, cordination of relays complete and checking of control wiring including testing on completion all as specified

Taking down unserviceable lightning arrestor and S&F lightning arrestor non linear resister type (Surge) suitable for 33000 volt grade conforming to IS-3070 Part-I with discharge capacity 65 kilo Amps including stranded coloured sleeved jumper connection with PG clamps mounted on steel mounting fabrication of MS clamps, bolts, nuts, washers etc all as specified and directed.

M & L for replacement of earthing continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/piope or fixed to poles or any other indicated situation for loop earting etc as required 32x6 mm galvanised iron strip .

Earthing complete with galvanised iron earth plate electrode 600 mm x 600 mm x 6mm as earthing lead buried directly in ground vertically to a depth not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 Mtr below normal ground level connected to and including galvanised iron strip 32X6 mm as earthing lead by means of bolts, nuts, check nuts & washers etc made of GI and connected to earthing test point all as shown in electrical plate No. 3 of SSR Part I of 2009.00 & as specified or indicated and testing on completion including exaction/earth work in any type of strata PCC ( 1:3:6 ) type C1 earthing chamber, pre cast slab 50 mm thick in cement concrete ( 1: 2 : 4 ) type B 1 ( reinforced with welded steel wire fabric (XPM) weight not less than 4 Kg / Sqm), funnel with wire mesh, I watering pipe of 20 mm bore medium grade and lugs, including galvanised iron strip 32X6 mm with GI protection pipe of 40 mm medium grade 7.5 meter long, etc complete all as specified.

M&L for removing HT/LT over head conductor from the insulator where ever required and restretching the same without any kink/bend upto permissible sag,binding it on insulator by means of binding wire and testing the HT overhead line after completion as directed.(Note: Three/four runs of HT/LT overhead conductor for three phases and neutral shall be measured and paid as one length.)

S&F in replacement of steel tubular poles complete with cast iron base plate, final taper plug, bolt, nuts & screws as specified type 410 SP-55 ( 11 mtr long ) complete all as specified and directed. Note: Excavation and PCC shall be measured and paid separately .

Cement concrete 1:2:4 type B-1 using 20 mm graded crushed stone aggregate in coping padestal to poles including provision of necessary form work finishing the exposed surface even and smooth complete all as specified.

Cement concrete 1:3:6 type C-2 using 40 mm graded crushed stone aggregate in foundation filling & mass concrete for poles/struts/stays assembly including provision of necessary form work finishing the exposed surface even and smooth in cement mortar 1:3 complete all as specified.

Cement concrete 1:4:8 type D-2 using 40 mm graded crushed stone aggregate in foundation filling & mass concrete for poles/struts/stays assembly including provision of necessary form work finishing the exposed surface even and smooth in cement mortar 1:3 and applying two coats of white wash to the portion of PCC muffs above ground level complete all as specified.

S&F in repair Aluminium conductor, steel reinforced, of size 6/211 to 6/3010 mm (Squirrel to Ferret) straining properly on insulators with and including aluminium tape/winding wire, clamps & jumpers etc. complete all as specified. Note : 3% for sag shall be added in measurement

S&F in repair Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending (cold or hot), drilling holes for bolts, bent to any shape or size as directed and inclusive of one primer coat of red oxide, one under coat of zinc oxide and one finishing coat of aluminium paint complete all as specified.

S&F in repair pin type insulator polymer 100 mm height and 100 mm dia for working pressure 33000 volts and dismantling of insulator any type complete all as specified.

M&L for disc type insulator,polymer 145 mm high and 255 mm dia ball and socket type,white.brown or green two in series assembly for tension clamps for conductors for working pressure 11000 volts grade,including taking out existing unserviceable insulator of any type/description etc complete all as specified and directed

S&F in repair stay assembly complete with accessories as shown in electrical plate No 1 and diameter of stay rod 16 mm (loop type insulator,stay clamps,excavation and concrete measured separately).

Supply and fixing in repair for stay wire galvanised strand size 7 X 3.15 mm complete all as specified and directed by Engr-in-charge.

Supply and fixing in repair large size loop type insulator, with over all dimension 90mmX140mm, clearance from hole should be 25.5mm complete all as specified and directed by Engr-in-charge.

Taking down defective unserviceable GOD from pole and supply and fix gang operated air break switches 12 insulators mounted on MS Channel with operating mechanism worked from ground level suitable 11000 volts, 200 Amps including GI pipe handle clamps bolts, nuts, jumper wire connecting with stranded conductors complete with locking arrangements.

S&F in repair danger notice plate of 1.6 mm thick mild steel sheet,vitreous enamelled white with letters,figures and conventional skul and bones in signal red colour and fixed with MS clamps,bolts and nuts of approved size,for HT,25x20 cm in size.

Servicing the 11 KV GOD by cleaning the contact disc/pin inaulator with CTC & applying petrolium jelly at the contact point/down rod links for smooth operation including replacing the rusted/corroded bolts nuts and defective insulator as required at site. (minor spares such as nuts, screw and washer deemed to be included in the rate rest items to be measured seperately).

Supplying and fixing in repair male/moving contact of GOD (set of three ) complete all as specifed and directed by Engr-in-charge.

Supplying and fixing in repair female/fixed contact of GOD (set of three ) complete all as specifed and directed by Engr-in-charge.

Supplying and fixing in repair copper tinned strip/belt of for connecting the male/female contact (set of three ) complete all as specifed and directed by Engr-in-charge.

Dismantling of old jumper and including supply and fixing of new jumper made out of ACSR conductor 6/1 X 3.00 mm (ferrit) inserted insde PVC pipe complete (length not exceeding 2 mtr), including testing on completion of the job complete all as specifed and directed.

Supplying and fixing in repair 11 KV insulation mat of size 1mtr X 2mtr, 2.5mm thickness shock proof antiskid ISI marked complete all as specifed and directed by Engr-in-charge.

Note:-The accepted amount will be arrived after deducting the Sch of credit i.e. Rs 65500.00 and any other reduction if any from quoted amount.

M/S WEB COMPNAY (BID ID -3321479)

M/S OSHO TRADERS (BID ID -3322728)

M/S LEO TRADERS (BID ID -3321815)