REPAIR, MAINTENANCE AND CALIBRATION OF 11 KV HT LINE AND SWITCH GEARS, VCB,RALAYS, BATTERY BANK AT IRDE UNDER GE(I) R N D DEHRADUN

Amount

Excavation in trenches in any type of soil not exceeding 1.5 metre deep and not exceeding 1.5 mtr width and getting out soil including forming bottom surface to required slope/gradient for laying cables/pipes etc. including removing cable protection covers/ bricks complete all as specified and directed. Notes : (i) Excavation shall be made carefully in order to avoid damage of existing cables and brick protection. (ii) The excavation work may be carried out in short lengths for locating fault in under ground cables at different locations

M&L for Returning, filling in, including spreading leveling, watering and well ramming the excavated soil in layers not exceeding 25 cm thick complete all as specified and directed.

M&L for Removal of surplus excavated soil to a distance not exceeding 50 Mtr distance and depositing as directed at a level not exceeding 1.5 mtr above starting point complete all as specified and directed.

Material & labour for sand filling with clean dry fine sand unwashed including gently punning around cables in trenches/ducts for cable protection complete all as specified and directed (NOTE : Thickness after punning shall be measured for payment)

Supplying & Laying un-reinforced pre cast flat concrete cable protection cover of class HV, type I, size 300mm x 180mm x 40mm, factory made, complete all as specified and directed .

Fixing / laying only old un-reinforced pre cast flat concrete cable protection cover of any description complete all as specified and directed . Note :- Old concrete cable protection cover retrived under item No.01 herein above shall be reused.

Supplying, Laying, testing and commissioning in replacement of UNSV XLPE insulated, PVC sheathed (heavy duty) armoured shielded cable with aluminium conductor for working voltage upto 11KV (Earthed) ,conforming to IS 7098 Part-II amended upto date complete, having cross sectional area under mentioned size of cables laid in trenches/fixed on pole/wall / passed through pipe including making necessary connection with VCB/OCB/ 4 pole/2 pole structure etc. complete all as specified and directed. Make:Havells/CCI/ICL/GLOSTER/Incab/Nicco/Polycab/Plaza) (NOTE: Earth work, sand cushioning, pipe, clamps for holding cables and PCC protection shall be measured and paid separately )

95 Sqmm 3core

120 Sqmm 3core

185 Sqmm 3core

Re-laying HT cable Obtained form Item No 1 ( Any size)

Supplying, laying & jointing in replacement of UNSV GI water tubing, under mentioned bore, light grade as in sleeving etc laid in trenches / ducts etc. complete all as specified and directed by Engineer-in-Charge.(MAKE : TATA/JINDAL/TT SWASTIK)

100 mm bore

80 mm bore

Disconnecting and taking out old Unserviceable HT joint complete and Supply , jointing and testing cable jointing kit of 11 KV (Earthed) grade cable for indoor termination, heat shrink type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sq mm complete all as specified and ditected.

Disconnecting and taking out old Unserviceable HT joint complete and Supply , jointing and testing cable jointing kit of 11 KV (Earthed) grade cable for outdoor termination, heat shrink type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sq mm complete all as specified and ditected.

Disconnecting and taking out old Unserviceable HT joint complete and Supply , jointing and testing cable jointing kit of 11 KV (Earthed) grade cable for outdoor termination, heat shrink type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sq mm complete all as specified and ditected.

Disconnecting and taking out old Unserviceable HT joint complete and Supply , jointing and testing cable jointing kit of 11 KV (Earthed) grade cable for indoor termination, heat shrink type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sq mm complete all as specified and ditected.

Disconnecting and taking out old Unserviceable HT joint complete and Supply , jointing and testing cable jointing kit of 11 KV (Earthed) grade cable for straight through, heat shrink type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sq mm complete all as specified and ditected.

Disconnecting and taking out old Unserviceable HT joint complete and Supply , jointing and testing cable jointing kit of 11 KV (Earthed) grade cable for straight through, heat shrink type complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sq mm complete all as specified and ditected.

Dismantling & taking out unserviceable steel & iron items from poles i.e cross arms, bracing, supports, clamps and back plates etc. including nuts & bolts complete and Supply & fixing cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections including nuts & bolts , washers , welding bending cold or hot , drilling holes for bolts in any shape or size as indicated or directed and inclusive of two coats of aluminium paint over a coat of red oxide primer complete all as specified and directed.

Disconnecting, dismantling,and taking out of unserviceable stay assembly complete and M&L for stay assembly for 11 KV comprising of 20mm dia, 1.80 mtr long galvanized stay rod , having stay bows of galvanished mild steel 400 mm long made out of 14 mm dia galvanized bars, 7 / 4.00 mm GI stay wire stranded and 300mm X 300mm X 6mm thick MS stay plate, complete all as shown on electrical plate No 1 of SSR, Part-I with and including all necessary fittings/accessories like loop type insulator with 90 mm height 140 mm dia clearance hole 25.5 mm , shackle & stay clamps, necessary excavation and earth work in any type of soil and PCC works in (1:3:6) type C-2 (using 40mm graded stone aggregate) and disposal of surplus soil to a distance not exc 50 m complete all as specified and directed . (Excavation and concrete measured separately)

Supply and fixing in rteplacement of UNSV Steel tubular swaged poles complete with cast iron base plate, final, taper plug bolt, nuts & screws of type 410 SP-55 (11 M long) complete, all as directed all as specified. Note :- Earthwork, cement concrete in foundation, coping, cross arms ACSR conductors will be measured and paid separately under relevant items.

Supply , Install and testing in replacement of unserviceable insulators pin type porcelain, vitreous, white, brown or green insulators,for working pressure 11000 volts of size 150mm height and 150 mm dia including one galvanized mild steel spindle two galvanised iron washers and one galvanised iron nut, etc for HT lines fixed on poles complete all as specified and directed.

Supply , Install and testing in replacement of unserviceable disc type porcelain, vitreous, white, brown or green insulators,for working pressure 11000 volts of size 145mm height and 255 mm dia including Single disc assembly for tension with tension clamps for conductors, etc for HT lines fixed on poles complete all as specified and directed.

Supply , Install and testing in replacement of unserviceable HT 11kV vertical swing triple pole gang operated air break switch (GOD) consisting of twelve insulator (3 insulators in each phase and one each for DO fuse). Mounted over the MS channel frame, operating mechanism, operating handle GI medium grade 25 mm bore, 5 mtr long with locking arrangement system connected with operating handle and 7 leaver lock of Godrej, moving and fixed jaws, copper jumpher strip etc suitable for 11000 volt 200 Amp current rating all as specified and directed at site..

Dismantling and taking down existing unserviceable lightning arrestor of any capacity and any description and Supply, fixing, commissioning & testing of distribution class lighting arrestor of rating 12 KV capacity and 10 KA NDC(Peak) confirming to to IEC-99.4 including brackets, clamps, bolts, nuts and washers complete all as specified and directed.

Supplying,Straightening and Stringing in replacement of UNSV aluminum conductor steel reinforced (ACSR) conductor off size including jointing the conductor with new conductor on existing HT pole and binding to insulator with the new aluminium wire binding wire 2 mm dia making and connecting jumper connections etc including connecting commissioning and testing complete, all as specified and as directed by Engr-in-Charge.

Supplying, Straightening and Stringing in replacement of UNSV Guard/ cradles hexagonal/ rectangular, fabricated in replacement of UNSV galvanized steel wire 3.15 or 4mm dia . all as specified and as directed by Engr-in-Charge.

Restringing of HT existing over head line of ACSR conductor after disconnecting from the insulators & jumpers to the required tension & sag & binding up & connecting to insulators & jumpers properly testing complete, including chopping off tree branches (coming in the way line) all as directed by Engr-in-Charge.

Description all as per item No 24 above here-in before, but for GI wire complete, all as specified. Notes:- For item No 22 to 25 (i) The quoted rate is inclusive of the cost of Setting /adjusting of cradles in positions. Adjusting & tighting of stay assembly where ever required. (ii) The quoted rate is inclusive of the cost of old serviceable jumper of ACSR conductor shall be reused and fixed. (iv) The quoted rate is inclusive of the cost of Cutting/trimming of tree branches along with the exisitng HT overhead line 2 mtr clearence from all sides of ACSR conductor including removal from the site.

M&L in replecement of UNSV jumper with weasel conductor suitable for HT, 11000 volts grade required at site with suitable size of luge on both end including proper crimpinf etc.complete, all as specified and directed by Engr-in-charge.

Disconnecting HT supply and taking out HT 11 KV OCB 400/800 amps de-assembling components, decarburizing contacts servicing & calibration complete HT OCB as per manufacturers instructions, cleaning / lubricating moving parts of trolley checking wiring of numerical over current & Earth falt relay type aux voltage 20 to 110 volts AC/DC, CT rating 1A or 5A , with inbuilt master trip & TCS feature. Relay should have minimum 4 digital Binary Inputs and 6 Digital output contacts suitable for AC/DC operation universel type complete, alongwith control panel and control wiring, protection system and relays by primary & secondary injection system bank/battery chargers/DC system completetripping coils, checking of tripping system placing in the trolley back testing commissioning all as specified on load all as directed by Engineer-in-Charge. Note : (i): Any parts required for replacement to make the breaker serviceable will be measured and paid separately under appropriate item of Sch ‘A’ as supply only but fixing charges of the parts replaced/repaired is deemed to be included in these item (ii) calibration & testing will be carried out by machine which will be arranged by the contractor under his own arrangement.

Supply only the following items / spare parts suitable for existing 11 KV OCB, 200/800 Amps capacity of any make, dismantled/fixed under Sch ‘A’ item N0.27 here in above complete all as specified and directed .

Set of six Nos fixed arcing contract suitable for 400 Amps 250 MVA HT OCB (11 KVA) complete

Moveable Contact threaded type suitable for 400 Amps 250 MVA OCB complete

Epoxy spout insulator of assembly fixed with HT compound seal suitable for 11 KV 400 Amps 250 MVA capacity OCB complete

Set of two Nos actuating spring complete

Contact block complete

Contact collar complete

Lifting cross bar assembly complete

Set of 02 Nos oil tank liners complete

Oil tank gasket complete

Disconnecting and taking out existing HT 11KV VCBs from housing and cleaning, rubbing and overhauling the mechanical parts incl Greasing oiling replacement of UNSV trip coil, breaker charging motor, gear panion, roller switch, Big gear etc and re-assembling the same after replacement as required and made the VCB serviceable including making all electrical connection and testing & calibration (IR Test, Continuity test, Tripping test of earth fault and Over current of panel )alongwith control panel and control wiring, protection system and relays by primary & secondary injection system bank/battery chargers/DC system complete complete all as specified and directed by Engr-in-charge. Note :- (i): Any parts required for replacement to make the breaker serviceable will be measured and paid separately under appropriate item of Sch ‘A’ as supply only but fixing charges of the parts replaced/repaired is deemed to be included in these item (ii) calibration & testing will be carried out by machine which will be arranged by the contractor under his own arrangement.

Supply only the following items / spare parts suitable for 11 KV VCB, 200/800 Amps capacity of any make, dismantled/fixed under Sch ‘A’ item No. 29 here in above complete all as specified and directed .

Vacuum Interrupter

Bushing (Female)

flexible connectors

Closing coil assembly 30/24 volts DC.

Tripping coil assembly 30/24 volts DC.

Heating element with thermostat switch 150 Watt compact type

Motor cut off limit switch.

Spring charge motor, single phase suitable for spring charge motorised mechanism

Auxilary switch (6 NO + 6 NC ).

11 KV bus insulator of suitable for 11 KV VCB/OCB Panel complete

Taking down, testing and calibration of numerical over current & Earth fault relay type aux voltage 20 to 110 volts AC/DC, CT rating 1A or 5A , with inbuilt master trip & TCS feature. Relay should have minimum 4 digital Binary Inputs and 6 Digital output contacts suitable for AC/DC operation universel type complete with checking of trip circuit by secondary injection set. The setting of relays to off trip match as per the CTs ratio and complete all as specified and directed by Engr-in-Charge.

Supply, install, testing and commissioning in replacemen of UNSV tripping coil DC 30 V for 11 KV VCB complete suitable on existing panel, all as specified and directed by Engr-in-charge

Supply, install, testing and commissioning in replacemen of UNSV closing coil, DC 30V for 11 KV VCB complete suitable on existing panel,all as specified and directed by Engr-in-charge

Supply, install, testing and commissioning in replacemen of UNSV Trip push button for 11 KV 400 Amps OCB complete suitable on existing panel ,all as specified and directed.

Supply, install, testing and commissioning in replacemen of UNSV Voltmeter square type Digital of size 144Sqmm of capacity 0 to 15 KV PT Ratio 11KV/110Volt for panel complete suitable on existing panel all as specified and directed by Engr-in-charge

Supply, install, testing and commissioning in replacemen of UNSV 11 KV panel indicating lamp fitting LED type suitable for 24 volt/30volt DC complete with base complete suitable on existing panel, all as specified.

Preparation of surfaces of VCB/OCB Panel Board cubical in shape applying two coat of synthetic enamelled paint of approved colour including supplying and fixing PVC name plate indicating different cable/switch and other accessories, connections complete all as specified and directed.

Supply, install, testing and commissioning in replacemen of unserviceable numerical over current & Earth falt relay type aux voltage 20 to 110 volts AC/DC, CT rating 1A or 5A , with inbuilt master trip & TCS feature. Relay should have minimum 4 digital Binary Inputs and 6 Digital output contacts suitable for AC/DC operation universel type including wiring of the relay with 1.5 Sqmm PVC insulated unsheted copper wire with numbering tags, thimble, insulation material, nut bolts etc complete suitable on existing panel, all as specified and directed.Cat part No.MC61A of make L&T or equivalent model in specified makes ie siemens/Alstom/ABB/JVS as approved by GE

M&L for fixed contact with insulator 800 amps, 11000volt for 11 KV VCB panel complete suitable on existing VCB, all as specified and directed

M&L for movable contact with insulator 800 amps, 11000 volt for 11 KV VCB panel complete suitable on existing VCB, all as specified and directed

M & L in repelacement of UNSV Power factor meter digital type with auxiliary supply voltage 230volt.complete uitable on existing panel, all as specified and directed.

M & L in repelacement of UNSVFrequency meter 47 to 52Hz digital type with auxiliary supply voltage 230 Volt.complete suitable on existing panel,all as specified and directed.

Supply, and filling/topping up of transformer insulating oil EHV grade having dielectric strength 65 KV/40 KV (R.M.S) at 2.50mm gap high viscosity confirming to IS – 335 of 1983 in various capacity of transformer 33 /11KV, and 11/0.433 KV /OCB's respectivelly complete all as specified and directed .

Material and labour for cleaning and preparation of all existing steel surfaces of pole structure of straight steel tubular poles 11 mtrs long for painting including mild steel cross arms, clamps and anti clibing device,protection pipe etc and applying one coat of aluminium paint all round the exposed steel surfaces of existing steel tubular poles structure of any description and in any position above the height of 1.50 mtr from the plinth of the pole and applying one coat of synthetic enameled paint of different colours in strips of 150mm width upto the height 1.5 mtr from the plinth of poles including writing pole No and other sign works with white paint over black painted base in the pattern and style as approved by the Engineer-in-Charge complete all as specified & directed.Note : Size of black painted base for numbering shall be 100mmx25mm and the size of numbers shall be not exceeding 10cm height.

M & L for PCC 1:2:4 type B1 with 20mm grade stone aggregate as in foundation for outstanding around pole near feeder pillar/LT panel foundation of stays, including form work, fair finishing to exposed surface complete all as specified and as directed by Engr-in-Charge.

M&L for PCC 1:4:8 type D2 with 40 mm graded stone aggregate as in foundation for hard standing around pole & near feeder pillar/LT panel foundation of stays, including form work, fair finishing to exposed surface complete all as specified and as directed by Engr-in-Charge.

M&L for PCC 1:3:6 type C2 with 40 mm grade stone aggregate for coping of poles,stays incl. form work complete all as directedby Engr-in-Charge.

Brickwork with subclass ‘B’ bricks, straight or curved on plan to any radius in half brick thick walls built in cement mortar 1:6 complete all as specified and directed by Engr in Charge.

Rendering 15mm thick on fair faces of brick work or concrete surfaces in cement plastering 1:4 complete all as specified and directed by Engr-in-Charge.

M & L for spreading crushed/hand broken 20/ 40 mm graded sand stone aggregate around and under 4 pole/ 2 pole structure/11 KV Yard uniformally complete, all as specified and directed. Note :- (i) Excavation of earth work will be measured & paid separately under relevant items. (ii) Spread thickness of aggregates shall be measured and cubical content shall be worked out with deduction of 50% for voids for arriving at net qty.

M&L in replacement of UNSV danger notice board and Supply and fixing new danger notice board size 250mmx200 mm made out of 1.6 mm thick mild steel sheet, suitable for 11KV HT line and applying two coats of synthetic enameled paint (red colour) over a coat of red oxide primer including writing letters,figures and conventional skull and bones of suitable size on board in standard pattern as per IS fixed with and including MS clamps made out of mild steel flat iron,bolts ,nuts and washers etc complete, all as specified and directed by Engr-in-Charge

Dismantling and taking out old PVC flooring of any description and removing old unserviceable floowing of any type and M&L for supplying and fixing nominal 2.5 mm (+ 10% tolerance) thick electric insulated P.V.C. synthetic sheet viz “insulatica 2000” conforming to IS-15652 of 2006 alongwith suitable adhesive/chemibound, having leakage current tested to meet requirement of IS-8437, IS-3043, break-down strength 40 KV having no adverse impact of mineral oil, high insulation resistance including material for water proofing of floor and sealing of all joints as required, suitable for floor covering around electrical apparatus for voltage not exceeding 11 KV (AC) to ground complete all as specified and directed .

Disconnecting, dismantling,and taking out of unserviceable current Transformer from HT complete & Supplying installing commissioning and testing of new current transformer,indoor epoxy type, ratio 180/0.578 conforming to IS 2705 part I of 1981, 50 Hz for HT 11 KV having insulation level class1-P10, IL-28/75kv , burden of 15VA and breaking capacity 18.4 KA for 1.0 second and necessary thimbles nut bolts etc complete all as specified and directed

Material and labour for earthing complete with galvanized steel earth plate electrode 600mm X 600mm X 6mm buried directly in ground vertically to a depth not less than 2.25 meter below normal ground level (with top edge of earth plate not less than 1.5 meter below ground level) connected to galvanized iron earth lead 32X 6 mm GI strip, (main earthing lead ) by means of galvanized bolts, nuts and washers all as shown in electrical plate No . 3 of MES Schedule Part-I (2009) with connected to earth test point & to main switch board with & including adequate quantity of charcoal dust and common salt alround earth plate & 40 mm dia GI pipe light grade for earth lead protection pipe for suitable length and GI pipe 20 mm dia light grade for watering pipe with funnel & wire mesh incl necessary excavation and earth work in any type of soil, and PCC (1: 3 : 6) type C-1 (using 20 mm graded black trap/ granite/ Basalt stone aggregate) for earth pit with 40x40x6 mm mild steel angle iron frame for cover and 40 mm thick precast RCC cover in 1 : 2 : 4 type B1(using 20 mm graded black trap/granite/ basalt stone aggregate) with 3 Nos 8 mm dia TMT bars both ways with 12mm dia round bar handle, complete all as specified & directed .

Disconnecting and taking down carefully old unserviceable GI strip of any type and size and Material and labour for laying along the wall/roof GI strip of size 32mm x 6mm complete with all accessories such as porcelain insulators, saddles and fixing screw etc for conductor complete, all as specified and directed by Engr-in-Charge

M&L for two coat of white wash over a coat of primer including prepaation of new surfaces complete, all as specified and directed by Engr-in-Charge.

M&L for one coat of synthetic enamel paint including preparation of old surfaces of steel surfaces complet, all as specified and directed by Engr-in-Charge.

MAHADEV ELECTRICALS

KAPOOR ELECTRICALS

M/s Ram Chander Gupta