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| 1 | Excavation in trenches in hard / dense soil not execeeding 1.5 m wide & not exceeding 1.5 m in depth and not exceeding 10 Sqm on plan for laying cables in trenches / erection of pole / stay assembly and getting out complete all as specified anddirected. |
| 2 | Returning filling in trenches, spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick completecomplete all as specified and directed. |
| 3 | Removing of suplus excavated soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above starting point complete all as specified and directed. |
| 4 | M&L sand cushioning to under ground cable with dry sand complete all as specified and directed.Note. Punned thickness of sand to be considered for measurement purpose. |
| 5 | Supply and laying un-reinforced precast concerete cable cover, class HV, type 1 flat size 300 mm x180 mm x 40 mm for cable protection complete all as specified and directed. |
| 6 | Supply and laying un-reinforced precast concerete cable cover, class LV, type 1 flat size 250 mm x150 mm x 40 mm for cable protection complete all as specified and directed. |
| 7 | M&L cutting of road, hard standing made of concrete or premix carpet, WBM, soling and morrum filling and including necessary excavation for laying of cable / pipe,making good the road / hard standing by using all old / new materials and with PCC (1:2;4) etc, required to match with the existing surface complete all as specified and directed. |
| 8 | Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire rmoured, electric power cables (heavy duty) withstranded aluminium conductor, 1100 volts grade for the following sizes complete all as specified and directed :-. |
| 9 | 3.5 core x 400 Sq mm |
| 10 | 3.5 core x 300 Sq mm |
| 11 | 3.5 core x 35 Sq mm |
| 12 | Supply and lay in trenches/drawn through pipes or in road crossings/ paths/drains/ducts/floors/along poles/ equipments etc., of HT cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 11000 volts earthed grade confirming to IS· 7098 (Part-2) 2011 of cross sectional area 95Sqmm x 3core including connecting up using suitable size aluminium lugs testing and commissioning complete all as specified and as directed.Note : Excavation earth work, sand cushioning and brick protection shall be measured separately under relevant items. |
| 13 | Supply and lay in trenches / drawn through pipes or in road crossings / paths / drains / ducts /floors / along poles / equipments etc, of HT cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, heavy duty electric cable with aluminium conductor, 11000 volts earthed grade confirming to IS· 7098 (Part-2) 2011 of cross sectional area 185 Sqmm x 3 core and including connecting up using suitable size aluminium lugs testing and commissioning complete all as specified and directed.Note : Excavation earth work, sand cushioning and cable protection shall be measured and paid separately under relevant items. |
| 14 | Supply and errection of steel tubular swaged poles with cast iron base plate of size 300 mm x 300 mm x 6 mm, type 410, SP-55, 11 m long, staying in a truely vertical position till the foundations are properly set with the help of crane complete with cast iron base plate, finial taper plug, bolts, nuts and screws and including drilling of holes to pole for clamps & hooks for running earth wire / strip, painting with two coats of aluminium paint over one coat of red oxide primer on all exposed surfaces and tarring with black bituminous paints to embedded portion in PCC, marking zebra crossings up to a height of 1.0m above the coping with black and yellow strips of synthetic enamel paint, three coats of white washing to the coping and numbering of poles, in yellow paint over black painted back ground at a height of 2 m from bottom of pole with 5 cm large bold letters 2\" (inch) wide etc., complete all as specified and directed. Note: The quoted rate shall be deemed to be include for earth work excavation in any type of soil, RFR, removal, PCC 1:2:4 foundation and coping. |
| 15 | M&L pin type porcelain, vitreous, white, brown or green insulator and including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 50 mm height, 65 mm dia for 550 volts grade complete all as specified and directed. |
| 16 | M&L shackle type, porcelain, vitreous, white, brown or green insulator and including galvanised mild steel straps, washers, insulator bolts, washers and nuts complete all as specified and directed. |
| 17 | M&L anti-climbing device, spikes type fabricated out of M.S. bars (round, square and flat) and including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified and directed. |
| 18 | S&F cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections and 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 one primer coat, one under coat and one finishing coat of paint complete all as specified and directed. |
| 19 | M&L danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures andconventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for LT, 20 x 15 cm size complete all as specified and directed. |
| 20 | All as per Sl. Item No. 16 above but HT 25 x 20 cm size. |
| 21 | M&L stay assembly complete with accessories as shown in electrical plate No. 1 (loop type insulator, stay clamps, excavation and concrete measured separately) for 20 mm dia stay rod complete all as specified and directed. |
| 22 | S&F triplepole mechanically operated, air break gang operated switch mounted on insulator and steel frame, with operating mechanism working from ground level complete in all respect such as gun metal moving contacts and spring loaded gun metal fixed jaws, knife copper jumper strip etc, suitable for 11000 Volts grade, 50 Hz, with 9 insulator of rating upto 200 Amps for current rating upto 200 amps etc., complete all as specified and directed. |
| 23 | M&L lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 11 KV, 65 kilo amp complete all as specified and directed. |
| 24 | Supply, Installation, testing & commissioning of factory made 11 kV, 630 Amps, 21 kA for 3 Seconds, AFLR, SF6 Insulated, Motorised, Outdoor 5 Way RMU Consisting of 1 No. VCBs as Incoming and 4 No. of LBS as Outgoing and shall comprise of the following complete all specified and directed : Make: ABB / Schneider / SiemensThe make of Vacuum Interrupter & VCB of same make as the Ring Main unit.Note The RMU should be manufactured, tested, dispatched from OEM factory in whose name type test reports shall be furnished. Panels manufactured by system integrators franchise partners of OEM are not acceptable. |
| 25 | 12 KV SF6 Insulated Compact Ring Main Unit (RMU)Wherever applicable, offered 12KV SF6 Outdoor Ring Main Unit (RMU), should comprise of required number of 630A Load break Switches & 630 A Vacuum “T” OFF Circuit Breaker with Self Powered (3 O/C & 1E/F) Relays with RS-485 port for communication on MODBUS. RMU shall be one side extensible for facilitating quick addition of future loads. Further provision shall be available in product portfolio for extension of RMU so as to create combinations according to site requirement. |
| 26 | Load break switch (630A) Load break switch comprising of the following:- (i) Motorized Load Break switch for 12 KV, 630 A andearthing switch with making capacity(ii) “Live Cable” LED Indicators through Capacitor Voltage Dividers mounted on the bushings(iii) Mechanical ON/OFF/EARTH Indication(iv) Anti-reflex operating handle(v) Cable Testing facility after opening the cable covers after doing the earthing suitably and without disconnecting the Cable terminations.(vi) Cable boxes suitable for 1x3Cx300 sq mm XLPE Cable with right angle Cable Termination Protectors(vii) Cable Door should be arc proof and interlocked with respective Earthing Switches. For safety of operator it should not be possible to open the cable Door unless the earth Switch is ON. |
| 27 | Circuit Breaker (630A) Circuit Breaker comprising of the following:- (i) Motorized Vacuum circuit breaker for 630A and Earthing Switch with making capacity (ii) Fault arc Interruption should be in Vacuum only. (iii) Auxiliary contacts 2NO and 2NC (iv) Anti-reflex operating handle(v) “Live Cable” LED Indicators thru Capacitor VoltageDividers mounted on the bushings.(vi) 3O/C + 1E/F self powered relay with Low and high set for Over current and Earth Fault.Relay should have facility to trip the breaker from remote commands without requiring shunt trip coil. (vii) Mechanical ON/OFF/EARTH Indication (viii) Cable boxes suitable towards front/rear side, for 1 X 3C x 300 sq mm XLPE Cable with rightangle Cable Termination protectors |
| 28 | Metering Air insulated module The dedicated metering cubicle with each RMU comprising of the following: (i) 3 nos. Single Phase PTs - 11kV/V3/110/V3 ,Cl-0.5, 50 VA (ii) Space Heater with thermostat (iii)Terminal Blocks (iv) Digital Multi Function Meter ,Cl-0.5 for individual outgoing transformers (v) Battery/Charger . Input Voltage of 230VAC for the battery charger shall be provided at site. (vi) Auxiliary relays for OTI,WTI, Bucholz -Alarm & Trip for all VCBs. (vii) 8 Window Alarm Annunciator (viii) Hooter |
| 29 | Metering Air insulated moduleThe dedicated metering cubicle with each RMU comprising of the following:- (i) 3 nos. Single Phase PTs - 11kV/V3/110/V3 ,Cl-0.5, 50 VA (ii) Space Heater with thermostat (iii) Terminal Blocks (iv) Digital Multi Function Meter, Cl-0.5 for individual outgoing transformers (v) Battery / Charger Input Voltage of 230VAC for the battery charger shall be provided at site. (vi) Auxiliary relays for OTI,WTI,Bucholz -Alarm & Trip for all VCBs. (vii) 8 Window Alarm Annunciator (viii) Hooter |
| 30 | GENERAL TECHNICAL REQUIREMENTSService Conditions (i) The Ring Main unit shall be suitable for operations at a height of 1000 meters above sealevel, IEC 60120. (ii) The RMU shall be capable of operating normally within the following temperature ranges: (iii) Maximum air temperature: +40 deg C (without current deration) (iv) Maximum value for 24 Hr mean: +35 deg C (v) Minimum air temperature:- 20 deg C (vi) The Ring Main Unit shall be capable of being exposed to high relative humidity (max95%) and ambient air pollution. (vii) The Ring Main Unit shall be capable of being operated in electrically exposed locations |
| 31 | Design ParametersRing Main Unit, Electrical dataRated voltage KV 12 KV 1 Power frequency withstand voltage KV 28 2 Impulse withstand voltage KV 75 3 Rated frequency Hz 50 4 Rated current busbars A 630 5 Rated current (cable switch) A 630 6 Rated current (T-off) A 630 Breaking capacities 7 active load A 630 8 closed loop (cable switch) A 630 9 short circuit breaking current (T-off VCB) kA 21 10 Rated making capacity kA 52.5 11 Rated short time current 3 sec. kA 21 12 Internal Arc AFLR rating 1 sec. kA 21 |
| 32 | General data 1 Standard to which Switchgear complies IEC 2 Type of Ring Main Unit Outdoor, Metal Enclosed, bolted type. 3 Number of phases 3 4 Whether RMU is type tested in accordance with latest IEC Yes 5 Whether facility is provided with pressure relief Yes 6 Insulating gas SF6 7 Nominal operating gas pressure 1.2 bar abs. 20° C 8 Gas leakage rate / annum % 0.1 % per annum 9 Expected operating lifetime 30 years10 Whether facilities for gas monitoring- Yes,temperature compensated manometer shall be provided11 Material used in tank construction- Robotically welded, non -ferrous non-magnetic Stainless steel sheet, min 2.5 mm (cast resin, manual weleding or any other old techology is not permissible) |
| 33 | Note :-1. An operator situated in front, lateral and rear [A-FLR 21 KA-1 Sec. Downwards Exhaust, for Tank as well as Cable Compartment] of the RMU Switch board during an internal fault shall not be exposed to the effects of Arcing. Internal Arc Type Test Report for IAC AFLR 21 kA for 1 Sec for both Tank & Cable Box shall be for minimum as per OEM standards.2. All operations shall of the RMU shall be as per OEM standards.3. Copy of the Type Test reports as per latest IEC shall be submitted along with drawings for approvals.4. Factory Inspection will be carried out before Dispatching the item by AGE E/M / GE or as detail by Accepting officer. Neccessary arrangment will done by the contratcor for testing.5. After Installation Testing and commisioning carried out in Presence of SEI |
| 34 | Supply and installation Testing and commissioning of double wound copper transformer step down of capacity 500 KVA, outdoor type, platform/plinth mounted complete with standard fittings, primary voltage of HT 11000 Volts and secondary LT 433 volts, 3 phase 4 wire with frequency 50 c/s. Provided with suitable No of off load tappings on HT side to vary secondary voltage within range of +5% to -10% (in steps of 2.55%), star deleta connections with vector group of Dyn 11, Impedance of 4.5% and including first filling of transformer oil as per IS : 335 and colour coating with one coat of primer and two coats of BS grey colour Losses all as per IS : 1180 (part-l) : 2014 amended upto date Energy Efficiency level - 2 i.e Max valve of Total losses @ 50% load- 670W and @ 100% load-2100w with all standered accessiories required proper functioning of transformer including the following complete all as specified and directed :- |
| 35 | (a) Rating and Terminal marking plate- one(b) Earthing Terminal - Two(c) Lifting Lugs - Two(d) Drain valve with Blanking plate - one(e) Filter Valve with blanking plate- one(f) Conservator - one(g) Oil Level indicator with minimum marking(h) Dyhydrating breather - one(j) Air Release devise - one(k) Thermometer pocket - one(l) Pressure relief valve - one(m) Roller unidirectional - - four(n) Both side (HV and LV) cable Box(o) Separate Brought out Neutral Terminal(p) off Circuit Tap Changer (q) 100 MM dia stem type Thermometer |
| 36 | Note:(i) Commissioning of the transformer to be done by SEI/EI as detailed. Contractor should intimate one month in advance for commissioning of the same. Necessary arrangement for testing to be done by the contractor Rates for the same deemed to be included in the quoted rate.(ii) Foundation for Transformer will be measured and paid Seperately.(iii) Coated Rates Including Fansing for Transformer. |
| 37 | M&L construction of transformer foundation of size 1.80 m x l.50 m x l.50 m (above GL) and 2.20 m x l.90 m x l.0 m (below GL) including excavation in any type of soil, PCC 1:4:8 type D2 bed concrete , Random Rubble stone masonry in CM 1:6 for foundation, plastering in CM 1:4, 20 mm thick and including 100 mm thick PCC 1:2:4 coping, RFR, removal of surplus soil and applying three coats of white wash complete all as specified and directed. |
| 38 | Supply and install 250 KVAR with 6 steps (2 x 25 + 4 x 50) APFC Panel with MD-XL Capacitor and MCCB as incomer complete all as specified and directed. |
| 39 | S&F cable jointing kit for 11 KVgrade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 3 core 95 sqmm complete all as specified and directed. |
| 40 | S&F cable jointing kit for 11 KVgrade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 3 core 95 sqmm complete all as specified and directed. |
| 41 | S&F cable jointing kit for 11 KVgrade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 3 core 185 sqmm complete all as specified and directed. |
| 42 | S&F cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 3 core 185 sqmm Indoor / outdoor complete all as specified and directed. |
| 43 | M&L electrical earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground vertically (earth pit not less than 2.25 m deep below normal GL) with top edge of the earth plate at a depth not less than 1.5 m below normal GL and including connected to galvanised earth strip size 32 x 6 mm by means of bolts, nuts, washers madeof galvanized iron connected to earthing to body of equipment / DBs, GI wire protected by 15 mm dia light grade GI pipe upto connecting point and watering arrangements with 20 mm dia GI pipe medium grade and GI funnel all as specified and shown in Electrical Plate No. 3. of MES Schedule (SSR) Part I complete all as specified and directed. |
| 44 | Note : The quoted rate is deemed to be inclusive of the cost of earth work exavation on any type soil and removal of surplus soil to a distance of 50 m, PCC 1:2:4 type B1 for earth pit cover 6 nos. 8 mm dia TMT bars on both direction, earth lead protection GI pipe medium grade with suitable size from earth plate electrode to main switch, GI earth strip up to 7.50 m will measured as one unit |
| 45 | M&L electrical earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground vertically (earth pit not less than 2.25 m deep below normal GL) with top edge of the earth plate at a depth not less than 1.5 m below normal GL and including connected to GI wire4 mm dia by means of bolts, nuts, washers madeof galvanized iron connected to earthing to body of equipment /DBs, GI wire protected by 15 mm dia light grade GI pipe upto connecting point and watering arrangements with 20 mm dia GI pipe medium grade and GI funnel all as specified and shown in Electrical Plate No. 3. of MES Schedule (SSR) Part I complete all as specified and directed. |
| 46 | Note : The quoted rate is deemed to be inclusive of the cost of earth work exavation on any type soil and removal of surplus soil to a distance of 50 m, PCC 1:2:4 type B1 for earth pit cover 6 nos. 8 mm dia TMT bars on both direction, earth lead protection GI pipe medium grade with suitable size from earth plate electrode to main switch, GI wire length up to 7.50 m will measured as one unit |
| 47 | M&L earth continuity conductor or main earthing lead, 32 x 6 mm galvanised iron strip fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc.complete all as specified and directed. |
| 48 | S&F drop out fuse single pole mounted on insulator, 11000 Volts grade double pole steel frame of current rating 50 Amps complete all as specified and directed. |
| 49 | S&F cable route indicator made of GI round plate 100 mm dia (marked with HT 11 KV Cable) fixedon and including GI angle 25 x 25 x 5 mm (total length 500 mm), height 200 mm above GL and 300 mm below GL shall be inserted on pit of size 200 x 200 x 300 mm, grouted in PCC 1:2:4 type B1 complete all as specified and directed.Note: The quoted rate is deemed to be include for necessary earth work and PCC. |
| 50 | Fabricate, supply, install, test and commission LT feeder pilar box / panle, outdoor type, fabricate with 3.15 mm CRCA sheet mounted on 50 x 50 x 6 mm MS angle, 3 phase 4 wire,440v, AC, 50 HZ, with TPN aluminium bus bar of suitable capacity with pvc heat shrink sleeves, mounted on porcellin insulators and including volt and amp meter, selectro switch with all accessories and consisting of the following switch gear (main LT Panel) complete all as specified and directed :- |
| 51 | 1. ACB 4 Pole Manual Drawout type with microprocessor release 1000 Amps 50 KA-01 No (Incoming)2. MCCB 4 Pole 500 Amps 36 KA-01 Nos (outgoing for APFC)3. MCCB 4 Pole 320 Amps 36 KA-03 Nos (outgoing for Simulator Bldgs 1,2, 3,)4. MCCB 4 Pole 250 Amps 25 KA-01 Nos (outgoing forSimulator Bldg 4 )5.MCB TPN 10 Amps 10 KA-01 Nos (outgoing for St Lt) |
| 52 | Fabricate, supply, install, test and commission LT feeder pilar box/panle, outdoor type, fabricate with 3.15 mm CRCA sheet mounted on 50 x 50 x 6 mm MS angle, 3 phase 4 wire, 440 v, AC, 50 HZ, with TPN aluminium bus bar of suitable capacity with pvc heat shrink sleeves, mounted on porcellin insulators and including volt and amp meter, selectro switch with all accessories and consisting of the following switch gear (LT Panel 1,2) complete all as specified and directed :-1. MCCB 4 Pole 400 Amps 36 KA-01 Nos (Incoming)2. MCCB 3 Pole 63 Amps 25 KA-01 Nos (outgoing for Bldg)3. MCCB 3 Pole 63 Amps 25 KA-11 Nos (outgoing for Simulators with spare) |
| 53 | Supply and lay 100 mm bore GI tube \"light grade\" ISI marked with all fittings, complete, fixed to walls, pole ceiling or laid in trenchesfor cable protection at road crossing / on poles etc, complete all as specified and directed. |
