Military Engineer Services-MES has published Tender For Repair And Maint Of 11 0.415 Kv Xlpe Underground Cable Lt Steel Tubular Poles Pole Box Assembly Led Street Light Fittings And Connected Items At Manekshaw Marg Urban Village Mall Road Polo Road Church Road Tigris Road Cassel Road Station R. Submission Date for this Tender is 08-06-2024. Street Lighting Tenders in New Delhi Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in softloose soil for laying / taking up/ taking down of cablesand getting out and leveling of bottom surface to required level complete all as specified and directed by the Engineer- in- Charge. |
| 2 | Returning filling in, Including spreading, leveling, Watering and well ramming soil in layers not exceeding 25 cm thick complete all as specified and directed by the Engineer- in- Charge. |
| 3 | Removing excavated material (i.e. soil) from site to a distance n. exec 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point complete all as specified and directed by the Engineer- in- Charge. |
| 4 | S & F common burnt bricks as mechanical protection of this cables using old size sub class ‘B’ bricks laid dry flat over the cable width equal to the length complete all as specified and directed by the Engineer- in- Charge. |
| 5 | M&L for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified and directed by the Engineer- in- Charge. |
| 6 | Supplying and laying un-reinforced precast concrete cable cover, class HV, type 1, flat size 300mmx 180mm x 40mm complete all as specified and directed by the Engineer- in- Charge. |
| 7 | All as per srl item No 06 here-in-before but using old cable cover complete all as specified and directed by the Engineer- in- Charge. |
| 8 | Supply, laying, jointing, testing and commissioning in replacment of LT underground cables 1100 volts grade, PVC insulated XLPE and PVC sheathed, heavyduty armoured, with multistranded aluminium conductors, IS-1554 marked, laid in trenches complete all as specified and directed. Cables of the following sizes:- Note:- Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately. |
| 9 | 16 Sqmm 4 core |
| 10 | 25 Sqmm 4 core |
| 11 | 35 Sq mm 3.5 core. |
| 12 | 50 Sq mm 3.5 core. |
| 13 | 70 Sqmm 3.5 core |
| 14 | 95 Sqmm 3.5 core |
| 15 | 120 Sqmm 3.5 core |
| 16 | 185 Sqmm 3.5 core |
| 17 | Supply, fixing and testing straight through joint heat shrinkable type with jointing kit suitable for cable PVC/XLPE insulated armoured heavy duty aluminium conductor 1100 Volts grade complete all as directed for the following sizes :- |
| 18 | 25-50 Sqmm x 3.5 core/ 4 core |
| 19 | 70-120 Sqmm x 3.5 core |
| 20 | M&L for re-painting of LT Steel tubular poles of any sizes by applying of 2 coats of aluminium paint including rubbing with wire brush/sand paper & writing pole Nos in appropriate size of letters including making yellow and black strips upto height of 1.5 mtr above from ground level complete all as specified and directed by the Engineer- in- Charge. |
| 21 | M&L for re-painting of LT Panels/feeder pillarsof approx size 2 to 4 Sqmwith 2 coats of super enamal paint over a coat of red-oxide with sparygun including writing of feeder pillar numbers in appropriate size of letters complete all as specified and directed by the Engineer- in- Charge. |
| 22 | S&F in replacement KIOSK box wheather proof made out of one piece mounted SMC base, pole mounted with hinged door, size 333x233x120mm out side and 300x200x105mm inside dimensions comprising of aluminium bus bar 4 strips for 3 phase and neutral 63 Ampsincluding embossing/painting of danger notice of size not less than 10cm x 7.5cm with letters, figures and conventional skull and bones in signal red colour on front face of KIOSK box body Incluiding MS clamp of size 25x3 mm with suitable size nut,bolts & washer etc complete all as specified and directed by the Engineer- in- Charge. |
| 23 | Boring of hole under road/pavement/hard standing or any other situation by manual means and suitable for passing of GI pipe 80 to 100 mm bore and making good both ends complete all as specified and directed by the Engineer- in- Charge. |
| 24 | S&F in replacement GI Pipe (light grade) with necessary accessories/ fittings for cable protections/pole for crossing of culverts/nallah of following bore sizes complete all as specified and directed by the Engineer- in- Charge. |
| 25 | 50 mm |
| 26 | 80 mm |
| 27 | 100 mm . |
| 28 | Supplying, laying, jointing testing and connecting in replacementXLPE insulated, screened, PVCbedded, galvanised steel strip or wire armoured,electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade, IS 7098marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole, including jointing & testing complete all as specified and directed of following sizes :- |
| 29 | 95 Sqmm 3 core. |
| 30 | 120 sqmm 3 core |
| 31 | 185 sqmm 3 core. |
| 32 | 240 Sqmm, 3 core. |
| 33 | 300 Sqmm3 core. |
| 34 | Supply andfixCable 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 armored aluminum conductor cable complete all as specified and directed by the Engineer- in- Charge offollowing size :- |
| 35 | 95 Sqmm 3 core. |
| 36 | 120 to 185 sqmm 3 core |
| 37 | 240 to 300 sqmm 3 core. |
| 38 | Supply andfix 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 armored aluminum conductor cable complete all as specified and directed by the Engineer- in- Charge of following size :- |
| 39 | 95 Sqmm 3 core. |
| 40 | 120 to 185 sqmm 3 core |
| 41 | 240 to 300 sqmm 3 core. |
| 42 | Supply andfix 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 armored aluminum conductor cable complete all as specified and directed by the Engineer- in- Charge of following size :- |
| 43 | 95 Sqmm 3 core. |
| 44 | 120 to 185 sqmm 3 core |
| 45 | 240 to 300 sqmm 3 core. |
| 46 | Supplying, installation, commissioning and testingof 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type,of 13.1 KA/Sec having ratio 300/150/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VAfor metering andassociated wiringincluding taking down old UNSV CTs complete all as specified and directed by the Engineer- in- Charge |
| 47 | Supplying, installation, commissioning and testingof 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type,of 13.1 KA/Sec having ratio 250/125/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VAfor metering andassociated wiringincluding taking down old UNSV CTs complete all as specified and directed by the Engineer- in- Charge |
| 48 | Disconnecting electrically and mechanically outdoor transformers upto 630 KVA capacity, lowering down from 4/6 pole structure carefully for major/minor repairs complete all as specified and directed by the Engineer- in- Charge |
| 49 | Disconnecting electrically and mechanically indoor/outdoortransformersinside the substation or outdoor type onoutside plinth upto 630 KVA capacity, carefully for major/minor repairs complete all as specified and directed by the Engineer- in- Charge |
| 50 | M&Llifting of core assembly by opening of top cover and other items for checking of faults/repair and lowering and refixing the same in its original position after inspection to make it ready for transportation to carry out rewinding work in workshop including transportation of unservicieable transformer upto 630 KVA capacity to workshop ( rate is deemed to be inclusive of transportation, T&P and men power ) complete all as specified and directed by the Engineer- in- Charge |
| 51 | M&L for transportation of transformer of capacity upto 400 KVA from MES Yard to site location using Hydra/Crane and truck as per requirement to replace defective transformer including installation, testing and connecting at site and to deposit the same to MES Yard after receipt and installation of repaired transformer at site complete all as specified and directed by the Engineer- in- Charge Note:- Contractor must arrange for transportation and installation for replacement of transformer at site immediately after receipt of verbal/telephonic/written complaint from JE/Engr-in-Charge within 1 day. Any delay beyond 1 day post receipt of complaint shall be penalized @ Rs 2500/- per day and shall be recovered from next due RAR. |
| 52 | M&L for alternative arrangement by hiring, transportation of transformer of capacity 500 / 630 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specified and directed by the Engineer- in- Charge. Notes:- (i) Contractor must arrange hired transformer including transportation and installation at site immediately after receipt of verbal/telephonic/written complaint from JE/Engr-in-Charge within 1 day. Any delay beyond 1 day post receipt of complaint shall be penalized @ Rs 3500/- per day and shall be recovered from next due RAR. (ii) Repairing of transformer must be completed within 15 days after receipt of verbal/ telephonic/ written complaint from JE/Engr-in-Charge. In case of any delay, no extra claim will be entertained towards hiring charges beyond 15 days and the contractor shall not be allowed to shift the hired transformer until replaced by repaired transformer.In case of any kind of fault / defect occurred in hired transformer, the contractor shall have to arrange further replacement without any additional cost and shall repair the defect from his own expenses. (iii)Contractor should check the available infrastructure and to be sure regarding safety of hired transformer before installation.The rate quoted is deemed to be including transportation cost, earthing lead etc. |
| 53 | Takingout the unserviceable copper windingfrom transformer of capacity upto 250 KVA after opening top cover,and carrying out the following workcomplete all as specified and directed by the Engineer- in- Charge :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse.. (b)Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank oil fins, removing of sludge, and making the inside surface of tank dry by blowing of hot air as directed and specified. (e)Painting of outside surfaces of transformer complete by means of spray machine as directed. |
| 54 | All as per item No 26 here-in -beforebut capacity of transformer 315 to 630 KVA complete all as specified and directed by the Engineer- in- Charge. Note for Item No 26 & 27 : - In case the defective transformer not repaired & installed at site within the specified period of 15 days from the date of handing over of defective transformer/complaint to contractor, a penalty recovery @ Rs 2500/- per day will be charged from his dues. |
| 55 | (a)Repairsto the transformer of capacityupto 250 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed. (iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with new one by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (viii)Filling/topping up of new transformer oil of required quantities . (b) M&L fortransportation of repaired transformer to the original position (from where taken-down), disconnecting the alternative transformer, taking down the same, Re-installation of repaired indoor/outdoor transformer on 4/6 pole structure/plinth/inside sub station, connecting electrically and mechanically, testing and commissioning complete all as specified and directed. Note :-HT/LT leg coils copper wire/stripand transformer oilrequiredshall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. |
| 56 | All as per item No 28 here-in -beforebut capacity of transformer 315 to 630 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 57 | Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance complete all as specified and directed by the Engineer- in- Charge. |
| 58 | Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance complete all as specified and directed by the Engineer- in- Charge. |
| 59 | M&L for ON load Centrifuging and dehydration includingfilteration and cleaning of transformer oil by dehydration machine of 11/0.433 KV transformer installed at various site on plinth/4/6 pole structure of any capacityand topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed by the Engineer- in- Charge. Note :-Deficient quantity of Transformer oil required for top up shall be measured and paid separately under respective item as supply only. |
| 60 | Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5mm gap for filling in transformer or for topping up complete all as specified and directed by the Engineer- in- Charge. |
| 61 | Supplying and fixing in replacement, Porcelain Transformer bushing on LT (440 Volt) side, including brass stems conical bush and gasketafter disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 160 KVA andre-connecting electrically and mechanically, including testingcomplete all as specified and directed by the Engineer- in- Charge. Note. :-The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil,opening of top cover by unscrewing nut, bolts washers and provision ofpadtype bus bar almuminium of approppiate size /capacities of transformers withnut bolt &washers. |
| 62 | All as per Serial item No 34 here-in-before butcapacity 200 KVA to 315 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 63 | All as per Serial item No 34 here-in-before but capacity 400 KVA to 630 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 64 | Supplying and fixing in replacement, Porcelain Transformer bushing on HT (11 KV) side, including brass stems conical bush and gasketafter disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 160 KVA andconnecting electrically and mechanically, including testingcomplete all as specified and directed by the Engineer- in- Charge. Note. :- The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil,opening of top cover by unscrewing nut, bolts washers andconnections. |
| 65 | All as per Serial item No.37here-in-before but200 KVA to 315 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 66 | All as per Serial item No 37 here-in-before but 400 KVA to 630 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 67 | Supplying and fixing in replacement,all unserviceable gasketafter disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 160 KVA andre-connecting electrically and mechanically including testing complete all as specified and directed by the Engineer- in- Charge. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil,opening of top cover by unscrewing nut, bolts washersetc. |
| 68 | All as per Serial item No 40 here-in-before but200 KVA to 315 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 69 | All as per Serial item No 40 here-in-before but 400 KVA to 630 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 70 | S&F in replacement, Silica Gel Breather assembly including vent pipe and Silica Gel for indoor/outdoor transformers of capacityupto 160 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 71 | All as per Serial item No43 here-in-before but of capacity 200 KVA to 315 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 72 | All as per Serial item No 43 here-in-before but of capacity 400 KVA to 630 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 73 | S&F in replacement Thermometer of transformer of upto capacity 630 KVA complete all as specified and directed by the Engineer- in- Charge. |
| 74 | M&L for painting of transformer installed on plinth/4/6 pole structures at various siteof capacity upto 200 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SM No, MES and capacity of transformercomplete all as specified and directed by the Engineer- in- Charge. |
| 75 | M&L for painting of transformer installed on plinth/4/6 pole structures at various siteof capacity 250 to 630 KVAwith existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SM No, MES and capacity of transformercomplete all as specified and directed by the Engineer- in- Charge. |
| 76 | Earthing complete in replacementwith galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 3.5 m below normal ground level) with top edge of earth plate not less than 2.5mbelow normal ground level, connected to galvanized iron strip 32X6 mm by means of electric arc welding of galvanised iron or steel as shown in electricalplate No 3 of SSR Part I, connected to earth test point and the equipment on the other side complete all as specified, including testing and commissioning complete all as specified and directed by the Engineer- in- Charge. Note : - (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe light grade etc. (b)The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI earthing and protection pipe upto 7.5 meter beyond the earth plates electrode. |
| 77 | M&L for servicing /testing ofbreaker/control panelincludingCT, PT and relays in control panelof VCB of capacity 1250 /800/630 Amps and rating 11 KVcomplete as details mentioned as under:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear.(v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation.(vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing.(x) Checking of control circuit & tighten the connections if any.(xi) Check close & trip coil.(xii) Checking of Jaw Contacts Conditions and repair/adjust.(xiii) Replace the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish.(xv) Replacement of Dashpot/shock absorbers .(xvi) Replacement ofcarbon brush of spring charging motor. (b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT(ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance(vi) Tripping coil resistance. (c) Testing of following relays of control panelwith Secondary Injection Kit ,checking andprogramming of relay:- (i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay.(ii) Master trip relay |
| 78 | Supplying, fixing &testing in replacement master trip relay, 50/24 Volt DC in control panel including wiring complete all as specified and directed by the Engineer- in- Charge. |
| 79 | Supplying ,fixing &testing in replacement Trip circuit supervision relay, 50/24 Volt DC in control panel including wiringcomplete all as specified and directed by the Engineer- in- Charge. |
| 80 | Supplying ,fixing &testing in replacementDC supervision relay relay, 50/24 Volt DC in control panel including wiring complete all as specified and directed by the Engineer- in- Charge. |
| 81 | Supplying ,fixing , testing ofSF 6 gas pressure supervisionrelay, 50/24 Volt DC in control panel including wiringcomplete all as specified and directed by the Engineer- in- Charge. |
| 82 | S&F in replacement MCCB 4 pole , 63Amps, 16 KA ,50 Hz,415 Volts Complete all as specified and directed by Engr-in-Charge |
| 83 | S&F in replacement MCCB 4 pole , 100Amps,10 KA,50 Hz,415 Volts Complete all as specified and directed by Engr-in-Charge |
| 84 | S&F in replacement MCCB4 Pole ,125 Amps 16 KA Complete all as specified and directed by Engr-in-Charge. |
| 85 | S&F in replacement MCCB4 Pole ,160 Amps 25 KA Complete all as specified and directed by Engr-in-Charge. |
| 86 | S&F in replacement MCCB4 Pole ,200Amps 36 KA Complete all as specified and directed by Engr-in-Charge. |
| 87 | S&F in replacement MCCB4 Pole ,250Amps 36 KA Complete all as specified and directed by Engr-in-Charge. |
| 88 | S&F in replacement MCCB4 Pole ,400Amps 36 KA Complete all as specified and directed by Engr-in-Charge. |
| 89 | S&F in replacement MCCB4 Pole ,630Amps 50KA Complete all as specified and directed by Engr-in-Charge. |
| 90 | S&F in replacement on load change over switch open execution of capacity 400 Amps, 4 pole , 415 volt , 50 Hz fixed in any type of existing LT panel/Feeder piller including taking out old existing unserviceable change over from panels etc Complete all as specified and directed by Engr-in-Charge. |
| 91 | All as per item No 63 above but 250 Amps 4 pole Complete all as specified and directed by Engr-in-Charge. |
| 92 | All as per itemNo 63 above but 200 Amps 4 pole Complete all as specified and directed by Engr-in-Charge. |
| 93 | S&F in replacement of LED Street light fittings of capacity 60 Watt Complete all as specified and directed by Engr-in-Charge. |
| 94 | Supply and fixig in replacement of LED Street light fittings of capacity 70 Watt Complete all as specified and directed by Engr-in-Charge. |
| 95 | Supply and fixig in replacement of LED Street light fittings of capacity 90 Watt complete all as specified and directed by the Engg-in-Charge. |
| 96 | Supply and fixig in replacement of LED Flood light fittings of capacity 100 Watt complete all as specified and directed by the Engg-in-Charge. |
| 97 | Supply and fixig in replacement of LED Street light fittings of capacity 120 Watt complete all as specified and directed by the Engg-in-Charge. |
| 98 | Supply and fixig in replacement of LED Street light fittings of capacity 200 Watt complete all as specified and directed by the Engg-in-Charge. |
| 99 | Testing the cables with high voltage DC testing machine and locating the fault in the cables by fault locating machine to pin point exact position of fault, disconnecting faulty 11 KV HT cables of differentsizesfrom both ends, removal of Fault,Re-connections and testing of cables after removal of fault complete all as specified and directed. Note: (a)11 KV HT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable cable cover/brickswill be laid in trenches for cable protection. If extra PCC cover/bricks and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule. |
| 100 | All as per item Ser No 72 above butfor 1100 Volt LTcables complete all as specified and directed by the Engg-in-Charge. |
| 101 | Supply installation & commissioning in replacement of 24V, 40A Float Cum Boost Battery Charger unit includingbattery bank comprising 02 Nos of 12 Volts, 00 AH sealed maintenance free batteries.The CCCV battery charger consisting ofcopper wound,air cooled transformer, 01 Set single phase full wave bridge rectifier consisting ofdiodes andSCRs, liberally rated mounted on heat sink andcomplete with resistor/condenser network for surge supperssion .During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DCdigital ammeter,DC digitalvoltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility forfuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom .The battery charger shall be divided into two compartments.The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:- (a) Input working voltage-180 -270 Volts(b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor- > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f)Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j)Float charging -2.15 V/Cell (k)Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l)Reverse polarity -No damage will caused .A visual indication for reverse polarity will appear with an audio alarm. (m)Short circuit-MCB protecton provided. |
| 102 | Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work orderand shall be verified by the Eng-in-charge |
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