Tender For Repair/Maintenance Of Ht Oh Line, God/Do Fuse, Ht Vcbs, Ug Cable And Allied Works In Bhagat Line Under Age E/M (E/S) At Ge (U) Meerut Cantt.; 1 Excavation in trenches n.exc 1.5mtr wide and not exc 1.5mtr depth and getting out insoft/loose soil and n.exc 10 Sqm on plan and leveling of bottam complete all as specified anddirected. 2 Returning and filling in of excavated soil including spreading,levelling,watering and well ramming in layers not exceeding 25 cm each complete all as specified anddirected. 3 Removal of surplus soil not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified anddirected. 4 M & L for good quality dry sand cushioning to under ground electric cable on layer of 8 cm thick before laying the cable and second layer of 15 cm thick after laying the cable all as specified in clause 19.75 of MES Schedule part-I (2009) after punning the thickness of sand shall be 18 cm complete all as specified and directed.Note :Sand shall be fine sand as specifed and punned thickness shall be measured and paid all as specified anddirected. 5 Supplying and laying in replacement of un-reinforced precast concrete cable cover factory made as per IS 5820-1970, class HV, type 1 , size 300mm x 180mm x 40mm complete all as specified anddirected. 6 Supply ,laying , testing & commissioning in replacement ofHT UG cable, XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cable(heavy duty) with stranded aluminium conductor 11 KV grade (Earthed system cable) as per IS 7098 Part-II, of following sizesall as directed including dismantling and taking out from trenches old one.Note:- (a) Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection for road crossings, HT termination jointswill be measured and paid separately complete all as specified anddirected :- 7 3 core 185 Sqmm 8 3 Core 120 Sqmm 9 3 Core 95 Sqmm 10 Supply and fixing in replacement of GI tubing light grade galvanised with all fittings laid in trenches/ on pole/ wall/ floor etc for protection of cable complete all as specified and directed of following sizes:- 11 100 mm bore 12 80 mmbore 13 M & L in replacement of cable jointing kit for11 KV (Earthed) grade XLPE cable for straight through cold shrinkable type joint complete with jointing material and accessories suitable forfollowing sizes including testing after jointing complete all as specified anddirected :- 14 3 core 50 sqmm to 95 sqmm. 15 3 Core 120 sqmm to 185 sqmm 16 M & L cable jointing kit for11 KV (Earthed) grade XLPE cable for outdoor end termination cold shrinkable type joint complete with jointing material and accessories suitable forfollowing sizes including testing after jointing complete all as specified and directed :- 17 3 core 50 sqmm to 95 sqmm 18 3 core 120 sqmm to 185 sqmm 19 M & L cable jointing kit for11 KV (Earthed) grade XLPE cable for indoor end termination cold shrinkable type joint complete with jointing material and accessories suitable forfollowing sizes including testing after jointing complete all as specified and directed :- 20 3 core 50 sqmm to 95 sqmm 21 3 core 120 sqmm to 185 sqmm 22 M & L cable jointing kit for33 KV (Earthed) grade XLPE cable for indoor end termination cold shrinkable type joint complete with jointing material and accessories suitable for sizes 120 sqmm 3 core including testing after jointing complete all as specified and directed. 23 M&L for painting with two coats of synthetic aluminium paint on complete steel structure after scrapping the old paint from steel structures of 33 KV yard MRS Bhagat line structure complete all as specified and directed. 24 M & L replacement of ACSR conductor of any size as ordered by Engr-in-charge including tightening and bindingh with new binding wires to insulators all as directed complete all as specified anddirected. 25 M & L Disctype insulator vitreous, white, brown, or green insulator includig one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut 150 mm height, 150 mm dia for 33 KV volts grade complete all as specified and directed. 26 M&L for replacement of PG clamps, parallel grove clamps, tee clamps & GI nut, bolts of required size other connectors for connecting ACSR dog conductors for jumpring all as required at site complete all asspecified and directed. 27 S & F in replacement of disc type insulator, porcelain, vitreous 145 mm high and 255 mm dia ball and socket type white, brown or green, single disc assembly for tension with tension clamps for conductors, working pressure 11000 Volts complete all as specified anddirected. 28 S & F in replacement of danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts, nuts of approved size for HT 25x20 cm sizeincluding dismantling old one complete all as specified and directed. 29 S & F in replacement of HT lightening arrestor metal oxide type (gap less) heavy duty triple pole for 33 KV overhead line ,36 KV rated highest system voltage, long duration distribution discharge class type,IP 55 Degree of protection, 100(kVp) at 65 kAHigh current impulse withstand with normal discharge current of 10 KA complete with all fittings conforming to IS: 3070 part-3effectively connected with earthing system complete all as specified and directed. 30 M &Lin replacement of Earthing complete with galvanized steel earth plate electrode 60cmx60cmx6 mm thick buried directly inground (Earth pit not less than 2.25 Mtr deep below normal ground level )with topedge of the plate not less than 1.5 Mtr belownormal ground level connecting with galvanizediron iron strip 32x6mm as earthing lead by means ofbolt nut check nuts and washersof galvanized iron and provision of GI tubing medium grade (ISI marked)of size 15mm for protection of GI earth wire upto test point, 20mm dia GI light grade watering pipe with funnel and wire mesh, RCC pit cover of size 300x300x40mm reinforced with XPM having weight not less than 4Kg/sqmm including 6mm thick MS bar handle made to shape, PCC pit with 1:3:6 type C1 with angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate, excavation , earth work in soft / loose soil, removal of excavated soil and returning filling in all as required at site complete all as specified in plate No 3 of SSR Part-I and all as specified orindicatedincludingtesting on completion.NOTE :-Rates inclusive of necessary excavation in soft / loose soil, earth work, PCC pit, RCC cover, funnel with watering pipe, GI earth strip upto 7.5 m long for connecting totest point etc. all as required at site for complete earthing) and dismantling old defective earthpit complete all as specified and directed. 31 Cutting bushes, levelling the areaaround E/M installation, sub stations, pole structure etc including surface excavation not exceeding 30 cm deep and avearaging 15 cm deep and getting out roots etc and throw away not less than 50 mtr from the site and making good complete all as specified and directed. 32 Supply , install, testing and commissioning in replacement of existing unsv outdoor type, 33 KV gang operated switch, rotary type, double break of current rating upto 400 Amps, triple pole each pole consisting of galvanised steel base, HT insulators as per IS, non ferrous knife and spray, loaded contacts, arching horns of adequate section to break magnetizing current of the transformers, horizontal pipe of adequate length for phase seperation adequate length of GI pipe for operation from ground level and operating handle with locking arrangement complete in both ON and OFF position. All ferrous parts hot dipped galvanised and non ferrous heavily tinned to with stand weather suitable for vertical mounting complete all as specified and directed. 33 M & L for boring in any type of soil under road 1.5 Mtr below the top surface of road by convential method complete for passing through 80mm to 100mm dia GI pipe and filling earth after laying of pipe including disposal of surplus soil complete all as specified and directed.NOTE :- Pipe will be measured and paid forseparately . Any damage to existing cables of any type and road will made good by the tenderer without any extra payment. 34 Maintenance & complete overhauling of 11 KV Breaker &Control Panelincluding dismantling of operating mechanism parts, well cleaning with petrol and replacing minor parts, reassembling of parts including well cleaning and complete panel board main bus bar, de- carbonizing all joints bus bar CT, PT, spouts metal parts and making breaker perfect operation in manual and electric mode including all routine and preventive maintenance complete all as specified and directed ( Spare parts will be measured and paid separately) INCLUDING Complete Calibration of11 KV Transformer control and relay panel complete such as ANN-annunciator, Master trip relay, Aux external trip relay, Trip CKT supervision relay,overcurrent & earth fault relay, auxillary relays etcand settings as per site conditions and manufacturers instructions by applying AC/DC to voltage coil unit and measuring the time taken by relay to have trip command etc including replacement of old /burnt wiring complete all as specified and directed.Note : (a) In case of major repairs/replacement in Breaker which can not be undertaken at site theBreaker shall be shifted at civil workshop and the cost shall be paid separately under relevant items.(b) Cost ofother necessary repairs shall be measured and paid separately under relevant item. Contractor shall bring the mechanic at site for first inspection of the Breaker after thatshall be shifted at workshop complete all as specified and directed. 35 Dismantling of old damaged racking mechanism & Supply, fix, testing & commissioning of four position racking mechanism for a circuit breaker in a cubicle or housing providing Connected, Test, Disconnect and Out positions with following specifications Racking lead screw is mounted in the circuit breaker structure in its own support, rear end of the racking screw is threaded to engage and move a travelling nut which rides in guide slots. The outer ends of the travelling nut engage a pair of connecting links which rotate a pivoted roller bracket. The roller bracket carries a racking roller which engages a cam slot in a member extending from the rear portion of the cubicle or housing. The shape of the cam slot plus the increasing lever arm of the connecting links around the pivot pin on the nut provide a variable racking force which is needed for primary disconnect contact engagement. The central positioning of the racking mechanism makes it suitable for existing 11 kV of circuit breaker.racking mechanism must be interlocked with the closing mechanism; releasable locking means and interlock means are provided to limit the operation of the racking mechanism to conditions which are safe for the operator; thus, the unlocking of the racking mechanism after the breaker is tripped will hold the trip mechanism and hold it trip free as long as the racking mechanism is unlocked. An indexing element for the slide for the locking mechanism is provided for all the positions of the circuit breaker complete all as specified and directed. 36 Dismantling of old damaged Vacuumed interrupter & Supply, fix, testing & commissioning of 11 KV Vacuum Interrupters of capacity upto 1600 Amp (as per sample) for vacuum circuit breakerswith Technical specification no under the following site/climatic conditions:Max. ambient temperature 60C , Min. ambient temperature (-)50C , Minimum Relative Humidity ( %age) 26 3.4 Max. Relative Humidity (%age) 100 3.5 Average no. of rainy days per annum Nearly 120 days 3.6 Average no. of Dust Storm days per annum 35 , Avg. annual rainfall 900 mm 3.8 Maximum wind pressure 195 kg/m2 , Isokeraunic Level 45 ,latitude above mean sea level 1000 m ELECTRICAL RATINGS ( 3 Phase Symmetrical Basis ) Rated Frequency 50/60 Hz Rated Maximum Line to Line Voltage 12 kV , r.m.s. Rated Power Frequency withstand Voltage : Air 36 kV , r.m.s. Rated Impulse withstand Voltage : Air 95 kV Peak Rated Normal Current 2000 A,r.m.s. Rated Short Circuit Current ( 3 Phase Symmetrical Basis ) 26.3 kA , r.m.s. Percentage D. C. component of Rated S.C. Breaking Current (max) 50 % Rated Short Circuit making Current 67 kA , Peak Rated duration of Short time Current 3Sec Rated Short time withstand Current 26.3 kA , r.m.s. Maximum Contact Resistance at Minimum Closing Force < 30 Micro ohms Contact resistance after opening 1 X10^6 M-Ohms Capacitor Switching capacity (Single Bank) 400A, r.m.s. Degree of vacuum interrupter inside bottle Make CG/ABB as per site requirements complete all as specified and directed. 37 Maintenance & complete overhauling of 33 KVBreaker & Remote Control Panelincluding dismantling of operating mechanism parts, well cleaning with petrol and replacing minor parts, reassembling of parts including well cleaning and complete panel board main bus bar, de- carbonizing all joints bus bar CT, PT, spouts metal parts and making breaker perfect operation in manual and electric mode including all routine and preventive maintenance complete all as specified and directed. INCLUDING Complete Calibration of33 KV Transformer control and relay panel complete such as ANN-annunciator, Master trip relay, Aux external trip relay, Trip CKT supervision relay,overcurrent & earth fault relay, auxillary relays etcand settings as per site conditions and manufacturers instructions by applying AC/DC to voltage coil unit and measuring the time taken by relay to have trip command etc including replacement of old /burnt wiring complete all as specified and directed. 38 Dismantling of old burnt contacts & Supply, fix, testing and commissioning of Main contacts as per sample and shall have ample area and contact pressure for carrying the rated continuous and short time currents of the existing 11 kV breaker without excessive temperature rise which may cause pitting or welding with Main contacts shall be the first to open and the last to close so that there will be little contact burning and wear with rated current upto 1600 Amp impulse stand voltage with heat proof metal having electrolytic copper complete all as specified and directed. 39 Dismantling old defective/peeled of Insulating Matand M/L for Elastomer Insulating Mats for Electrical Purposes Class A/voltage grade upto 33 KV (AC) as per IS : 15652:2006 with ISI mark of thickness 3 mm+ 10% of approx width 1 mtr along with suitable adhesive /chemibound resin waterproofing compound and sealing material all as per SSR Part -I clause 19.23 A1 to 19.23 A-7 including dismatling of old difective / peepled of insulating material complete all as specified and directed. 40 M & L for checking and finding out pin point location of fault in HT 11 KV undergroung cable with the help of fault locating machine complete all as specified and directed. Note:- (i) Rate for the rent of fault locating mobile machine, charges for operator, engineer, electrician etc are deemed to be included in the quoted rate. 41 S & F in replacement installation, testing and commissioning Cast Resin Three phase Potentail Transformer of ratio 11KV/√3/110V/√3/110 V/√3 , 50VA , Class 0.5- 3, Burden with desired capacity PT Fuses complete all as specified and directed. 42 S&F in replacement of existing 33KVout door Type Single Phaseoil cooled Potentail Transformer IS:3156 rated voltage 33KV peak voltage 36 KV 50Hz frequency Basic insulation Level primary:36kv/70kv/170kv(p)secondry :3kv for 1 minute class of insulation A type creepage distance 900mm (minimum) Ratio 33000/√3:110/√3-110/√3Volt Burden core-I100VA,core -II 100VA. complete all as specified and directed. 43 M&L for hard core using broken stone or bolders of gauge exc 63 mm but not exc 100 mm, diposited, spred and levelled in layers n.exc. 15 mm thick, watered and rolled / rammed to true surface complete all as specified and directed. 44 M&L 75 mm thick PCC 1:3:6 type C2 (Using 40 mm Graded stone aggregate) as in sub base in floors etc complete including necessary form work complete all as specified and directed. 45 Supply and lay Graded coarse aggregate of size 20 mm dia in outdoor sub-station yards completed all as specified and directed. 46 Removal old broken (U/S) Earthing pits at site and M & L for PCC (1:3:6) type C-1 (using 25mm graded black trap/granite/Basalt stone aggregate) for earth pit with 40 x 40 x 6mm mild steel angle iron frame for cover, pre cast 40mm thick RCC coverof (1:2:4)type B-1 (using 20mm graded black trap/granite/Basalt stone aggregate), rainforced with 8mm dia TMT bars 3 Nos both way with 12mm dia MS round bar handle etc.for construction of damaged earth pits etc. complete all as specified & directed. 47 Material & labour for earth pit cover, pre cast RCC (1:2:4)type B-1 using 20mm graded black trap/granite/Basalt stone aggregate, 320mm x 320mm x 40mm thick,cover reinforced with 8mm dia TMT bars 3 Nos both way with 08mm dia MS round bar handle with and including necessary form work complete all as specified & directed.
