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| 1 | Supply, installation, testing and commissioning of step down ,transformer 11KV/433 volts 3 Phase 50 hz 100 KVA New Level-2 outdoor type,with off load tap changing arrangement on HT side to vary secondary voltage upto +5% to -5% in step of 2.5% including suitable cable entry boxes both on HT to upto 120 sqmm 3 core XLPE cable and on low voltage side to acomodate XLPE cable of size upto 120 sqmm 3.5 core complete in all respect with standard accesories and fitment confirming to IS-1180 Part -1 of 2014 amended upto date primary side delta (HT) and secondary side star with neutral (LT) i.e vactor diagram Dyn11.Thesalient features of transformers are as follows:-(a) Transformer shall be oil immerse, ON AN cooled , double copper wound , core type with radiator cooled tank complete with first fill of transformer oil as per IS 335 amended upto date and di electric strenght more than 60 KV with colling system.The temperature more than 55 degree centigrade to ambient tempwhen measured by thermometer for top oil & 40 degree centigrade to ambient for winding when measured with resistance method, when tested in accordance with IS 2026(part 2).transformers shall be painted with PU paint as per relevant IS standards. |
| 2 | (b) (i)rating and diagram plate will contain all terminal specifications as per IS 1180 (part 1)(ii) earthing terminals 02 nos(ii) Lifting lugs (iv) thermometer pocket(v) air releasing device(vi) tap changer with locking provision(vii) Oil and winding temperature indicator(viii) dehyadration breather fitted with silica gel(ix) Drain cum simpling valve 3\"/4 nominl size thread IS 554 steel with plug(x) Pressure relief device on explosion(xi) conservator vent(c) energy efficiency shall be level II as per IS-1180 amended upto dateNote:- Drawing of transformer shall be got approved from GE. |
| 3 | Supply, installation, testing and commissioning of step down ,transformer 11KV/433 volts 3 Phase 50 hz 160 KVA New Level-2 outdoor type,with off load tap changing arrangement on HT side to vary secondary voltage upto +5% to -5% in step of 2.5% including suitable cable entry boxes both on HT to upto 120 sqmm 3 core XLPE cable and on low voltage side to acomodate XLPE cable of size upto 120 sqmm 3.5 core complete in all respect with standard accesories and fitment confirming to IS-1180 Part -1 of 2014 amended upto date primary side delta (HT) and secondary side star with neutral (LT) i.e vactor diagram Dyn11.Thesalient features of transformers are as follows:- |
| 4 | (a) Transformer shall be oil immerse, ON AN cooled , double copper wound , core type with radiator cooled tank complete with first fill of transformer oil as per IS 335 amended upto date and di electric strenght more than 60 KV with colling system.The temperature more than 55 degree centigrade to ambient tempwhen measured by thermometer for top oil & 40 degree centigrade to ambient for winding when measured with resistance method, when tested in accordance with IS 2026 (part 2). transformers shall be painted with PU paint as per relevant IS standards.(b) (i)rating and diagram plate will contain all terminal specifications as per IS 1180 (part 1)(ii) earthing terminals 02 nos(ii) Lifting lugs (iv) thermometer pocket(v) air releasing device(vi) tap changer with locking provision(vii) Oil and winding temperature indicator(viii) dehyadration breather fitted with silica gel(ix) Drain cum simpling valve 3\"/4 nominl size thread IS 554 steel with plug(x) Pressure relief device on explosion(xi) conservator vent(c) energy efficiency shall be level II as per IS-1180 amended upto dateNote:- Drawing of transformer shall be got approved from GE. |
| 5 | Supply, installation, testing and commissioning of 250 KVA Compact sub station along with all accessories complete all as specified and directed.A.HT Section11KV 630A Three way RMU Non extensible outdoor type (21KA, 3Sec) with 02 Nos Load Break Switch & 1 No SF6 VCB complete with all accesories single core CT ratio 50/1ARMU ,11KV, 2 No. Load Break Switch + 1No Vaccumm Circuit Breaker (L) altitude upto 1000 meter position Disconnector and Earth Switch1. Operation of LBS- Manual2. Load Break switch Rating-11 KV 630A 21 KA3. External cone threaded M 16 boltedbushings C Type, for cable ends , T Type4. Cable box provided5.Capacitor dividers and plug in voltage presence lamps with phase concor dance predisposition.6. with supply of touch proof termination Kit suitable for CSS having incoming and lopping cable IR*3C*300 sqmmFunction type: 3 position Vacuum circuit breaker in series with 3 positions independent operation disconnector-*outgoing feeder1.Operation of Vaccum circuit breaker -Motorised2.Vaccum circuit breaker rating-11 KV 630A 21 KA/3 sec3. self powered series trip Microprocessor based numerical Over current +Earth fault relay (IDMT+ Inst) for protection4. Tap Wound Protection current transformer of single core (CTR:50/1A, 2.5VA) for protection5. Capacitor divider and plug in voltage presence lamps with phase concor dance predisposition.6.1 No Disconnector switch open close earth7.1 No Emergency push botton8. Open/close mechanical indication. |
| 6 | RMU Accesories:-Manual operation Handle-01 NoStandard ManometerAuxiliary relay (3 element)24DC power packAcknowledge Push botton96sqmm HooterDP MCB 10KA for control |
| 7 | B. Transformer Section250 KVA Transformer (Manufactured as per IS 1180 New Level -2)Type: ONAN Oil filled1. Ratio: 11/.433 KV2. Capacity: 250 KVA3. Vector group: Dyn 11, 3 Phase4. Off load Tap link: +5% to -10% in steps of 2.5%5. Winding copper6. Corrugated Type Hearmitically sealed type7. Ambient Temperature- 50 Degree C8.Average Temperature rise in the winding over ambient temperature 40 deg C measured by resistance method -95 Deg C9.Bulb Holder10. Door Limit Switch |
| 8 | C. LT Section:a. Transformer- Incommer400A FP Manual fixed type MCCB 50KA Microprocessor BasedwithOC SC EFDigital Ammeter & VoltmeterDigital Multifunction meterCT s 400/5AIndication Lamps (RYB)Indication Lamps ( ON OFF)Control MCB\"sOutgoing100A FP MAnual fixed MCCB 36 KA Indication lampControl MCBD.InterconnectionInterconnection between HT & LT section & Transformer through Al. XLPE 95 cable, Transfromer & LT section through Aluminium Bus Bar. |
| 9 | Supply, install, testing and commissioning of silent type Diesel Engine driven generating set of min 250 KVAcapacity 3 phase, 4 wire, 415 V, 1500 RPM conforming to relevant IS Codes, AC power supply with power factor 0.8 coupled directly to alternator mounted on a common ed Plate with sturdy design,Bed plate shall be suitable for mounting on anti viberation mounting system, load factor 0.85, complete with integral acoustic enclosure-sound proof canopy (should have silent features as per latest CPCB IV norms), fuel tank having facility for easy cleaning, SuitableBattery Charging unit incl battery & standard accessories, and at least 2 year warranty. |
| 10 | (A) ENGINE :Liquid Cooled, electric Self start, 4 Stroke, min 6 cylinders cold starting, Naturaly aspirated /TCI aspirated( as per manufacturer standard), compression ignition, totally enclosed diesel engine , 1500 RPM suitable for 250 KVA alternator under NTP conditions as per ISO 8528 Part-I capable oftaking 10% over load for 1 hours in every 12 hours continues running confirming to IS: 10000/10002/ISO 3046/ BS: 649/ BS: 554 amended up to date, the Engine shall consist of the following :-(i) Dynamically balanced fly wheel or as per manufacturer\"s standard(ii) Coolant cooling system complete(iii) Air cleaner as per manufacturer\"s standard(iv) Fuel injectors and fuel pump as per manufacturer\"s standard(v) Electronic governor as per manufacturer\"s standard to maintain engine speed at all conditions of load(vi) Fuel service tank of suitablecapacity fabricated from MS sheet with, inlet outlet connections, air vent tap,drain plug, Caliberated level indiactor(gauge), MS fuel piping from tank to engine with valves, unions, reducers, flexible hose connections, mounting pedestals, fuel filters incl all as per manufacturer\"s design. (vii) Dry exhaust manifold with suitable exhaust residential grade, Asbestos rope of suitable size shall be provided as per manufacturer desires for silencer to reduce noise level as per CPCB norms.(viii) Static Battery charging unit suitable for 90 Ah battery/battery array 12/24 volt having float, trickle and boost charging feature. Charging should be from utility supply/generator supply as directedby Engr in charge. (b) one/two battery of total capacity 180 Ah connected with copper lugs and minimum 50 sqmm cable placed inside the acoustic enclosure.(ix) Gear driven oil pump for lubricating oil, priming of engine bearing, as well as fuel systems as per manufacturer\"s recommendation.(x) Natually aspirated/turbo charger as per manufacturer\"s standard.(xi) Lubricaton oil coolers and filters with replaceableelements as per manufacturer\"s standard |
| 11 | (xii) Crank case heater with manufacturer\"s recommendation.(xiii) All moving parts of the engine shall be mechanically guarded in such a manner that a human finger cannot touch any moving part.(xiv) Radiator as per manufacturer\"s standard.(xv) Engine control panel having digital display complete with :- (aa) Start/stop key switch. (ab) Lubricating oil pressure indication. (ac) Lubricating oil temperature indication. (ad) Water temperature indication. (ae) RPM indication. (af) Engine hours indication. (ag) Battery charging indication. (ah) Low lub oil trip indication. (aj) High water temp indication. (ak) Over speed indication.(xvi) Any other item not included/specified but is a standard design of the manufacturer |
| 12 | (B) ALTERNATOR(i) Alternator of capacity 250 KVA , 1500 RPM, 0.8 lagging power factor, 3Ph, 415 V, 50 Hz, H Class insulated winding, IP-23 protection, Close-direct-coupled,brushles self-excited and self-regulated type, SPDP enclosure, mounted on rigid MS sheet channel base frame,alternator shall be confirming to IS: 13364, IS: 4722,IS 4889 , IEC: 34 and suitable for tropical condition.(ii) Type : Brushless Self excited self regulated with automatic voltage regulator (electronic type).(iii) Rating : 250 KVA at 0.8 PF lagging 4 pole horizontal at NTP condition.(iv) Speed : 1500 RPM. (v) System : 415 Volt +/- 5 % AC 3 phase 4 wire 50 Hz. (vi) Connection : 4 wire star connected.(vii) Enclosure : Screen protected drip proof. (viii) Ventilation : Self ventilated. (ix) Anti friction bearings.(x) AVR output voltage within +/- 1%.(xi) Frequency in range 50+/- 3 %. (xii) Over load capacity and duration: 10 % for 1 hour after each 12 hour continuous operation, 50% for 15 sec |
| 13 | (C) Acoustic Encloser:(i) shall have Anti viberation mountings for direct mounting of engine alternator assembly.(ii) should be designed to meet CPCB-IV norms for noise level (75dB at 1 mtr).(iii) Construction shall be such ,it prevnets entry of rain water splashing in to the enclosure and allows quick flow of rain water to ground in event of heavy rains.(iv) suitable no of doors shall be privided for easy servicing and part replacment of DG set.(v) it shall be suitable to be dismantled during overhaul of DG.(vi)It shall be suitable for cable entry upto 3.5 core 185 Sqmm XLPE cable.(vii) Inside of enclosure shall be provided with 2x 12 watt lead lamps cotrolled by 5 amp switch supplied from load side of AMF Panel. |
| 14 | (d) CONTROL PANEL : The control panel is to be inside canopy and fabricated out of 1.6 mm thick CRCA sheet cubicle type totally enclosed, powder coated, IP-53 protection, equipped with MCCB/cuircuit breaker of suitable capacity, voltage metering & safety, frequency meter metering & safety, ampere metering & safety, fuel level gauge in % metering , Lub oil pressure metering, high water temp metering, engine RPM metering, Power metering, Power factor metering, set of suitable CTs, toggle switch, indicating LED lamps , incoming and outgoing terminals all as specified by manufacturer and directed by Engr-in-Charge.(a) Following engine shutown and alternator protection provisions shall be provided in control panel:(i) Engine:(aa) Low lubercating oil pressure shutdown. It shall be inoperative during starting and accelerating period of engine.(ab) High coolant temp shutdown.(ac) Engine overspeed shutdown.(ii) Alternator:(aa) Overload.(ab) Short circuit.(ac) earth fault.(ad) Over voltage.(b ) Monitoring and measuring Facility:(aa) Necessary energy analyser unit for visual monitoring of Mains ,Alternator and load E11voltage, current,Frequency,power factor,KWH, KW etc.(ab) Visual monitoring lamp indication for load on DG set, Load on Mains, engine shutdown for overspeed, over load trip, earth fault trip, engin lockout and failure to start, all with audio and visual alarm. |
| 15 | Foundations :- A PCC 1:2:4 M-20 graded foundations of weight 2.5 times the operating weight of genset with enclosure or as recommended by Genset manufacturer OEM/OEA which ever is higher is required to be provided. 300 mm of this foundation height should be above ground level. Length and Breadth of foundations shall be atleast 1 mtr more on all sides than size of enclosures. Design as per recommendation of manufacturer shall be submitted by contractor and get approved before execution of work. Depth of foundation shall be 400 mm.Note :- Rate for foundation shall be included in the quoted rate. |
| 16 | Note :-(i)Genset/Engine shall fulfill/confirm to latest CPCB emmission noise norms. The contractor shall produce/issue the certificate from manufacturer wrt. to compliance duly approved from agencies as approved by Govt of India. (ii) Payment shall be released only after receipt necessary of certificate.(iii)Necessary RECD device if required shall be deemed to be included in quoted rate. |
| 17 | Supply and fix heat shrinkable 11 KV End termination kits and accessories of following capacities and type:- |
| 18 | Supply and fix end joint kit for 1.1 KV grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3.5 core XLPE armoured Al conductor cable of size70 to 120 sq mm complete all as specified and directed by Engr-in-Charge.NOTE:- Item rate quoted including required T&P/Refixing & Refilling in the panel/pole. |
| 19 | Supply and fix end jointing kit for 11 KV grade cable for out door end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size120 sq mm complete all as specified and directed by Engr-in-Charge.NOTE:- Item rate quoted including required T&P/Refixing & Refilling in the panel/pole. |
| 20 | Supply and fix end jointing kit for 11 KV grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size120 sq mm complete all as specified and directed by Engr-in-Charge.NOTE:- Item rate quoted including required T&P/Refixing & Refilling in the panel/pole. |
| 21 | M & L for transformer plinth of size 3.0 x3.0 x 1m high from GL including excavation and earth work in trenches in any type of soil ,PCC 1:5:10 type E2 for foundation, brick work in cm 1:6 PCC, 1:2:4 type B-1 as in copping, plaster of 10mm thick in cm 1:6 on bricksurface/complete with 75 mm thick PCC 1:4:8 type D-2 (40mm graded crushed stone aggregate) as in sub base of floor with topping of, PCC 1:2:4 type B-1(20mm graded crushed stone aggregate) 100 mm thick in floor and finished fair (without using extra cement) returning filling in and removal of surplusto a distance n.exc 50m chain link fencing for the transformer plinth of1.8 m high made out of 4 mm dia GI wire 150x100 mm mesh with ms angle iron 50x50x6mm as in fencing post and embeded inPCC 1:2:4 type B-1 (20mm graded crushed stone aggregate) 30X30X30cm block at 2 m interval each side as approved with 1 No steel gate (3.5 m clear) span with locking arrangement made out of 15 mm dia ms rod50x50x6mm angle iron frame and painting the steel surface with two coats of aluminium paint over a coat of red oxide primer and three coats of white washing on cement work including ISMB 100 mm chanel 2 Nos for fixing transformer complete all as specified and directed by Engr-in-Charge. |
| 22 | M&L Earthing complete as per electrical plate No 5 of MES SSR Part I with galvanised steel plate earth electrode 60 cm x 60 cm x 6.0 mm, burried directly vertically in ground in a pit of depth not less than 2.5 metres below ground level with the top edge of earth plate at a depth not less than 1.5 m below normal ground level connected to and including galvanised iron or steel earth strip 32 x 6 mmby means of bolts, nuts, check nuts and washers of galvanised iron or steel. Earthing strip protected by galvanised iron or steel pipe 50 mm bore medium grade and connected to continuous earth wire on pole/ test point.Watering pipe shall be 20mm bore GI medium grade. The earthing shall be inclusive ofexcavation and earth work in any type of soil, charcoal, salt, funnel , PCC pit and RCC cover complete all as specified & directed by Engr-in-Charge.Note 1- following items deemed to be included in quoted rate(a) Earth electrode.(b) Main earthing lead from earth electrode to test point and further to equipment to be earthed upto 7.5 metre.(c) Material and labourfor connecting earth electrode and earthing lead as specified.(d) Adequate quantity of charcoal, dust, common salt and ground enhacement material as required to bring the earthing resistance as per direction. (e) All labour involved including testing of earth net work. (f) Excavation and earth work or drilling hole for electrode. (g) P.C.C. pit and C.I. cover. (h) Funnel with watering pipe, wire mesh and copper lugs etc. as specified. (j) G.I. protection pipe of size ordered specified for protection of earthing lead from mechanical injury or tempering.Note 2 - On testing after completion if the desired earth resistance is not obtained the earthing will be redone at no extra cost. |
| 23 | M&L Earthing complete as per electrical plate No 5 of MES SSR Part I with copper earth plate earth electrode 60 cm x 60 cm x 3.15 mm, burried directly vertically in ground in a pit of depth not less than 2.5 metres below ground level with the top edge of earth plate at a depth not less than 1.8 m below normal ground level connected to and including cupper earthing strip 20 x 3 mmby means of bolts, nuts, check nuts and washers of galvanised iron or steel. Earthing wire protected by galvanised iron or steel pipe 50 mm bore medium grade and connected to continuous earth wire on pole/ test point.Watering pipe shall be 20 mm bore GI medium grade. The earthing shall be inclusive ofexcavation and earth work in any type of soil,charcoal, salt,funnel , PCC pit and RCC cover complete all as specified & directed.Note 1- following items deemed to be included in quoted rate (a) Earth electrode. (b) Main earthing lead from earth electrode to test point and further to equipment to be earthed upto 7.5 metre. (c) Material and labourfor connecting earth electrode and earthing lead as specified. (d) Adequate quantity of charcoal dust and common salt as per direction. (e) All labour involved including testing of earth net work. (f) Excavation and earth work or drilling hole for electrode. (g) P.C.C. pit and C.I. cover. (h) Funnel with watering pipe, wire mesh and copper lugs etc. as specified. (j) G.I. protection pipe of size ordered specified for protection of earthing lead from mechanical injury or tempering.Note 2 - On testing after completion if the desired earth resistance is not obtained the earthing will be redone at no extra cost. |
| 24 | M&L forgalvanised Iron Strip 32x6mm with Saddles and fixing Screws for Roof/Earth Conductors and Down Conductors, complete all as specified and as directed by Engineer-in-Charge. |
| 25 | M&L forcopper Strip 20x3.15mm with Saddles and fixing Screws for Roof/ Earth Conductors and Down Conductors above Ground, complete all as specified and as directed by Engineer-in -charge. |
| 26 | M&L fortest Point Terminal Block made of Gun Metal or Phosphorus Bronze size 75x75x25mm, drilled and screwed including 3 No. 8mm dia, 25mm long hexagonal Head Screw, complete all as per specified and as directed by Engineer-in -charge |
| 27 | Supplying, laying, jointing, testing and commissioning HT under ground electric power cableCrossed linked polyethylene (XLPE)insulated, screened PVC bedded,galvanised steel strip or wire armoured electric power cable (heavy duty) with aluminium conductor, 11000 Volts grade suitable for earth system of 3 core 120 Sq mm cross sectional area size, ISI marked as per IS 7098 Part-2, laid in trenches/ laid under floor/ laid in ducts or fixed on poles etc. complete all as specified and directed by Engineer-in -charge. |
| 28 | Supply and LayingCable XLPE insulated screened PVC bedded galvanized steel strips or wire armoured,cable of size95 sqmm 3.5 core complete cables (heavy duty) ISI marked with stranded aluminium conductor, 1100 volts grade and connecting and testing in trenches, under floors/ roads or on wallscomplete including taking down old complete all as specified and directed by Engr-in-Charge. Note :-Earth work, excavation shall be measured & paid separately under respective item of Schedule and wherever cable laying on walls and uses of thimbles, Clamps, fastner,nut,bolt and washers etc rates shall deemed to be included in the quoted rates). |
| 29 | Supply , testing and commissioning of air break gang operated switch, triple pole mechanically operated out door type with all fittings/accessories mounted on and including 11 KV HT 15 Nos porcelain insulators of rating up to 200 Amps completewith drop out fuse assy having fuses of rating 40 Amps and steel channel frame, GI operating rod 25 mm dia of suitable length with operating mechanism worked form ground level, vertically operated including locking arrangement & operating handle, with and includingpadlockcomplete all as specified and as directed byEngineer-in -charge. |
| 30 | M&L for 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, in any shape or size as indicated or directed andinclusive of one primer coat, one under coat and one finishing coat of paint complete all as specified and as directed by Engineer-in-Charge. |
| 31 | Supply and Fixing of lightning arresters expulsion type complete (Each Set -03 Nos ) with all fittings,transmission class, discharge capacity 65 kilo amp and hight current with stand 100 KA outdoor type for 11000 volts, including clamps, nuts and bolts, washers and connection to earth with 32 mm x 6 mm GI strip to Lightning arrester complete all as specified and directed by Engineer-in-Charge. |
| 32 | Supply and errect steel tubular, swaged pole, 11 m long type 410-SP-55 complete with cast iron base plate, finial taper plug, bolts, nuts and screws duly painted with two coats anti corrosive paint internally complete and externally upto planting depth alternate black and yellow straps of synthetic enamel paint 30 cm each up to 1.5 mtr from GL and remaining pole painted with aluminium paint including writing No complete all as specified and directed byEngineer-in-charge. |
| 33 | Excavation in trenches not exceeding 1.5 meter wide and not exceeding 1.5 meter deep and getting out in soft/loose orany type of soil including boulder for taking up or laying of cable complete all as specified and directed by Engineer-in-charge. |
| 34 | Excavation in trenchesexceeding 1.5 meter wide and not exceeding 3.0 meter deep and getting out in soft/loose or any type of soil including boulder for taking up or laying of cable complete all as specified and directed by Engineer-in-charge. |
| 35 | Returning filling in soils including spreding, leveling, watering and well ramming in layers not exc. 25 cm thick complete all as specified and directed by Engr-in-Charge. |
| 36 | Removing surplus soil to a distance not exceeding 50 meter and sepositing where directed at a level not exceeding 1.5 meter above the starting point complete all as specified and directed by Engr-in-Charge. |
| 37 | Supply and laying new dry sand or Dry coarse sand as cushioning to cable 8 cm below the cable and 15 cm above the cable and punned to 18 cm as cable cushioning and coverning all as specified and as directed by Engineer-in- Charge.Note:- Punned quntity will be measured and paid at this item. |
| 38 | Supply and laying in replacement of un-reinforced precast concrete cable cover, class HVP, type 1 with peack, size 300mm x 180mm x 40 mminluding taking down old UNSV cable cover complete all as specified and directed by Engineer-in-Charge. |
| 39 | Supply and fixing of Brick tiles; common burnt clay building /ducts bricks’ sub-class `B’ Designation 75 (230mmx115mmx75mm)complete all as specified and directed by Engr-in-Charge. |
| 40 | M&L for GI tube light grade of size 80 mm with all fittingslaid in trenches or fixed to walls and ceiling or laid in floor for cable crossing including cutting of bitumen roads/PCC and making good after laying of cable including taking down old complete all as specified and directed by Engr in charge. |
| 41 | GI tube light grade of size 100 mm with all fittingslaid in trenches or fixed to walls and ceiling or laid in floor for cable crossing including cutting of bitumen roads/PCC and making good after laying of cable complete all as specified and directed by Engr in charge including taking down old. |
| 42 | M & L for cutting of Road and Concrete surfaces upto 300 mm depth and 300 mm wide for laying of cable / pipe in any type of soil, returning and filling in and spreading, leveling, watering and well ramming in layers not exceeding 25cm thickremoval of surplus soil and provision of 150 mm thick PCC type B-1, 1:2:4 with 20mm graded crushed stone aggregate on top layer all as specified and directed by Engineer-in-Charge. |
| 43 | M & L Danger notice plate made of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters , figures and conventional skull and bones in signal red colour and fixed with M.S clamps , bolts and nuts of approved size, for HT, 25mmX20mmX 1.6mm size complete all as specified and directed by Engieer-in-Charge. |
| 44 | M & L for PCC1:3:6type C2 with using 40 mm graded aggregate as in foundation of pole with necessary form work complete as specified and directed by Engr-in-Charge. |
| 45 | M&L for type PCC 1:2:4 type B-1 using 20 mm graded stone aggregate in copingfor HT pole including necessary form work complete all as specified and directed by Engr-in-Charge. |
| 46 | Supply, installation, testing and commissioning of 11KV 400A switch disconnector outdoor panel for protection of 63 KVA Transformer andabove. |
| 47 | The Load break switch shall use low pressure SF6 gas for current interruption and shall require no maintenance. Leakage rate shall not be over 0.1% per year, for life span of at least 30 years.It shall have three positions (closed, open and earthed). The switching device shall be suitable for three-phase systems operating at 12 kV and 50/60 Hz. The rated voltage shall be at least 12 kV. The short-time withstand current shall be 25 kA - 1 s / 12 kV. |
| 48 | LBS panel should be provided with fuse trip assembly and HRC fuses of appropriate rating for protection of 63 KVAtransformer.The operating mechanism should have following functions. (a) Switch function: independent-operation closing by lever. Operating energy is provided by a compressed spring which, when released, causes the contacts to close. independent-operation opening by push-button (O) or trip units.(b)Earthing-switch function: Independent-operation closing and opening by lever. Operating energy is provided by a compressed spring which, when released, causes the contacts to open or close. (c)Opening releases- shunt trip |
| 49 | Switch:The switch shall use low pressure SF6 gas for current interruption and shall require no maintenance. The switch enclosure shall be mounted horizontally within the cubicle and the position of the main and earthing contacts shall be clearly visible from the front of the cubicle. The position indicator shall be placed directly on the contact-operating shaft. The switch enclosures shall be made of cast epoxy resin.The mechanical endurance of the switch operating mechanisms shall ensure at least1000 operations class M1. |
| 50 | LBS Panel: Medium voltage switchgear shall comply with the latest issues of the IEC recommendations: IEC 62271-200. Switchgear shall be Free standing, Floor mounted, metal enclosed suitable for Outdoor use. The frame of individual vertical panels shall be minimum 2 mm CRCA. Degree of protection shall not be less than IP55. All hardware shall be corrosion resistant. Busbar shall be high conductivity Copper supported on insulators made of non-hygroscopic, non-inflammable material. Panel shall be provided with earth busbar of copper of suitable size rated for short time rating of switch board and Provision for receiving incoming or outgoing power cable through rear bottom entry. All metal surface shall be thoroughly cleaned, processed under 7 tank treatment. Make of Panel Schneider/Abb/Siemens/dvepl/Panel shall be powder coated with final colour shade RAL 7032/eqvt shade. |
| 51 | Earthing of the Power Circuit:Cable earthing shall be carried out by an earthing switch with a short-circuit making capacity, in accordance with IEC 62271-102 recommendations. It shall be possible to operate the earthing switch when the switch or disconnector is open.Mechanical interlocking systems (rotating switch with 3 positions )shall be provided to prevent incorrect operations such as the closing of the earthing switch with the switch or disconnector in closed position |
| 52 | Control Wiring: The wiring shall be carried out using multi-strand copper conductor super flexible PVC insulated wires of 650/1100V Grade for AC Power. Control terminals shall be screw type for auxiliary wiringMinimum 10% spare terminals shall be provided for control circuitNote:- Extra 02 nosadditional set of HRC fuses suitable for protection of 63 KVA transformer shall be provided by the contractor |
| 53 | Supply, installation, testing and commissioning of cubical compartmentized outdoor type LT panel vermin proof, weather proof, front and rear door openable with locking arrangement fabricated out of 3.15 mm thick CRCA sheet steel and base channel and suitable for operation on 415 volts, 50 Hz Ac supply with switchgear and accessories as given below complete with pad locking sealing arrangement earthing stud lebeling, painting, inter/connections providing of danger plates etc as per specifications and comprising with following:- INCOMING : (a)MCCB 160 amps , 36 KA 4 pole, Ics= 100% of Icu, adjustable type with overload setting 0.8 ln to 1.0 In,Qty- 01 no(b) volt meter digital type, 0-500 volts, 96 mm square dial with inbuilt selector switch- 01.(c) Ammeter 0-200 Amps with CT\"s 200/5A and inbuilt selector switch-01 set(d) LED type indication lights for ON, OFF, TRIP and three phase -01 set make AE/L&T. (e) Bus bar suitable for 200 Amps, mounted on insulators- 04 No\"s made of copper dulydrilled hole for cable connections. OUTGOING: (a)MCCB 100 amps , 16 KA 4 pole, Ics= 100% of Icu, adjustable type with overload setting 0.8 ln to 1.0 In,Qty- 02 no(b) MCCB 63 Amps, 16 KA 4 pole, Ics= 100% of Icu,adjustable type with overload setting 0.8 ln to 1.0 In,Qty- 02 no(c) All accessories prewired with suitable size copper conductor cable/strip including thimble/cable lugs with foundation of panel as required or recommended by manufacturerNote :- 1. Panel shall be installed at least 60 cm above ground 2. All civil/electrical work & material is deemed to be included in the quoted rates3.Drawing of Ltpanel shall be got approved from GE.4.panel shall confirm to IEC - 61439 updated to date.5. All MCCB\"s shall be confirm to ICS=100% of ICU. |
| 54 | Supply, installation, testing and commissioning of cubical compartmentized outdoor type LT panel vermin proof, weather proof, front and rear door openable with locking arrangement fabricated out of 3.15 mm thick CRCA sheet steel and base channel and suitable for operation on 415 volts, 50 Hz Ac supply with switchgear and accessories as given below complete with pad locking sealing arrangement earthing stud lebeling, painting, inter/connections providing of danger plates etc as per specifications and comprising with following:- INCOMING(a)MCCB 250 amps , 36 KA 4 pole, Ics= 100% of Icu, adjustable type with overload setting 0.8 ln to 1.0 In,Qty- 01 no(b) volt meter digital type, 0-500 volts, 96 mm square dial with inbuilt selector switch- 01.(c) Ammeter 0-200 Amps with CT\"s 200/5A and inbuilt selector switch-01 set. d) LED type indication lights for ON, OFF, TRIP and three phase -01 set . (e) Bus bar suitable for 400 Amps, mounted on insulators- 04 No\"s made of copper dulydrilled hole for cable connections. OUTGOING: (a)MCCB 160 amps , 36 KA 4 pole, Ics= 100% of Icu, adjustable type with overload setting 0.8 ln to 1.0 In,Qty- 02 no(b) MCCB 100 Amps, 16 KA 4 pole, Ics= 100% of Icu,adjustable type with overload setting 0.8 ln to 1.0 In,Qty- 02 no(c) All accessories prewired with suitable size copper conductor cable/strip including thimble/cable lugs with foundation of panel as required or recommended by Note :- 1. Panel shall be installed at least 60 cm above ground 2. All civil/electrical work & material is deemed to be included in the quoted rates3.Drawing of Ltpanel shall be got approved from GE.4.panel shall confirm to IEC - 61439 updated to date.5. All MCCB\"s shall be confirm to ICS=100% of ICU. |
| 55 | M&L Earthing complete as per electrical plate No 5 of MES SSR Part I with galvanised steel plate earth electrode 60 cm x 60 cm x 6.0 mm, burried directly vertically in ground in a pit of depth not less than 2.5 metres below ground level with the top edge of earth plate at a depth not less than 1.5 m below normal ground level connected to and including galvanised steel wire of dia 4.0 mmby means of bolts, nuts, check nuts and washers of galvanised iron or steel. Earthing strip protected by galvanised iron or steel pipe 50 mm bore medium grade and connected to continuous earth wire on pole/ test point.Watering pipe shall be 20mm bore GI medium grade.. The earthing shall be inclusive ofexcavation and earth work in any type of soil, charcoal, salt, funnel , PCC pit and RCC cover complete all as specified & directed by Engineer-in-Charge.Note 1- following items deemed to be included in quoted rate (a) Earth electrode.(b) Main earthing lead from earth electrode to test point and further to equipment to be earthed upto 7.5 metre. (c) Material and labourfor connecting earth electrode and earthing lead as specified. (d) Adequate quantity of charcoal, dust, common salt and ground enhacement material as required to bring the earthing resistance as per direction. (e) All labour involved including testing of earth net work. (f) Excavation and earth work or drilling hole for electrode. (g) P.C.C. pit and C.I. cover. (h) Funnel with watering pipe, wire mesh and copper lugs etc. as specified.(j) G.I. protection pipe of size ordered specified for protection of earthing lead from mechanical injury or tempering.Note 2 - On testing after completion if the desired earth resistance is not obtained the earthing will be redone at no extra cost. |
