PWD/SE/KEC/NIT-12/19-20

Amount

SUB-STATION WORK HT VCB PANEL: (1 Incomer & 2 Outgoing) SITC of Metal Clad, Indoor-type, single tier fully compartmentalized,free standing, Floor role type ,3 panel (1 Incomer +2 Outgoing),IAC for 25 kA for 1 sec, horizontal draw-out type 11 kV 800A Vacuuam Circuit breaker having following specifications. The scope shall be also included the necessary approval from Authority. The Panel shall be equiped with 1 No Power Pack of adequete rating. [Make : ABB /Schneider/ Siemens/Crompton Greaves].No system house panel is acceptable.Circuit breakers: Type: Air insulated VCB, Autoreclosing, System voltage : 11kV, 50 Hz ± 5%, 3 Phase Rated voltage : 12kV, Rated Current : 800A @ 50 °C ambient; Short time rating for 3 sec. : 26.3kA Short circuit making current :61.3kA; Insulation level (PF rms /impulse Peak) : 28kV/ 75kV System ground : Solidly Earthed; Duty cycle : O – 0.3sec – CO– 3min – CO. Break/ Make time : Not more than 4/ 5 Cycle. Range of auxiliary voltage for Closing/ Tripping/ Spring Charging : 85-110%/ 70-110%/ 85-110%. Circuit Breaker should withstand minimum 100 no Electrical operation at Full Short Circuit Current. [Make : ABB /Schneider/ Siemens/Crompton Greaves]. Bus Bar:Rated Current : 800A @ 50°C ambient. Material : Silver Plated/Tinned, High conductivity electrolytic Copper Bus Bar sleeve: Heat shrinkable PVC Sleeve with joints having full voltage soft PVC shrouded Short time rating for 1 sec. :26.3kA 1 Set. C.T.:Voltage class : As specified in Circuit Breakers; Type: Cast resin type, Dual Core, Dual Ratio, Barden : 15VA; Class of insulation : Class 'E' or better. Protection core : 5P10, Metering Accuracy class : 0.5, Short time rating for 1 sec. : 26.3 kA Ratio: For Incomer 100- 50/1-1A & Outgoings 50/1-1A.(Make : As per manufacturer's standard). P.T.: [Line PT] In Incomer Feede: Rated Voltage : Primary - 11000/√3, Sec. - 110/√3; Type : Cast resin, draw out type, 3- phase, 3-limb complete with HV fuses. Barden : 100VA per phase; Class of insulation : Class 'E' or better, Accuracy Class : 0.5; Rated voltage factor : 1.2 continuous, 1.5 for 30 Sec. PT should be draw out type and mounted on Breaker trolley.(Make : As per manufacturer's standard). Relays for protection and control: Incomer & Outgoings:Type : Flush mounted, Draw out, Numerical and multifunctional (with 3:O/C , 1:E/F & 3:VT I/P-Incomers & with 3:O/C , 1:E/F - Outgoings ) with self & remote monitoring features Communication port : RS232 for local pc and RS485 for remote operation Comm. Protocol : MODBUS Memory : Inbuilt memory capable of registering relay fault and disturbance (at least 25 fault records and 75 events records each with 1 m sec accuracy) with waveform during fault. RTC : in-built. Display : Alphanumeric LCD display with keypad for navigation and setting. Other features: 2 Setting groups, multshot reclosure, CB maintenance & Trip circuit supervision, at least 4 programmable LEDs [Make : As per manufacturers standard]......1 Set. Trip Circuit Supervision relay (VAX – 31) - 3 Set / Inbuilt Feature of NR High Speed Master Trip relay (VAJH – 13), 3 Set 6 Window Annunciation Facia.with ACCEPT, REST & TEST Push Button- 1 Set for Incomer. 8 Window Annunciation Facia.with ACCEPT, REST & TEST Push Button- 2 Set for Outgoing. Auxiliary relay for Transformer faults - VAA33 - 1 set for Outgoing. Metering:For Incomer - Digital Ammeter, Digital Voltmeter 1 Set each. For Outgoing - Digital Ammeter -- 1 set for each outgoing. Multifunctional Meter Type : Flush mounted, sealed dustproof construction (Front - IP5X, Rear - IP 4X), multifunctional. Display : Alphanumeric LCD display having capability to display 3 parameters simultaneously with auto scaling scaling capabilities for Kilo, Mega, Giga Display Parameters : Voltage, Current, PF/ Frequency and all energy & power parameters with auto scrolling. Accuracy Class : 1.0. Keypad : Front Panel keypad with auto keypad lock and password protection for setup parameters. Communication port : RS485. Communication Protocol : MODBUS. Memory : Inbuilt memory for keeping back-up of Integrated. Data Other features: Programmable CT/PT Ratio, Built-in Phase analyzer. (Make : As per manufacturer's standard) - 3 Sets. Installation & commissioning of the above 11 kV VCB 3 Panel with P.T & all the accessories, incl. carriage, by placing in position, assembling, lining up, levelling and checking all instruments, relays, correctly set according to requirement.

TRANSFORMER: Supply & Installation of three-phase VPI 500 KVA dry type indoor type Transformer – 11KV/415V, Dyn11, AN cooling as per IEC 60076-11/ IS 11171. The transformer will be of environmental class minimum E2 and of climatic class C2 as defined in IEC 60076. E2 and C2 classes will be indicated on the rating plate. Fire behavior class F1 as defined in IEC 60076-11 will be indicated on the rating plate. Off circuit tap @2.5%,+5% to - 5%. Make: ABB/Raychem-RPG/CGL/Energypac/voltamp Boroda/Universal Magnetics. [CPRI test certificate for similar nature of same or higher capacity of product should be submitted] Rated power 500KVA Cooling AN rated frequency 50 Hz rated primary voltage 11KV rated primary insulation level 12KV basic Impulse Level (BIL). 75kVp Off-circuit tapping @2.5%,+5% to -5%Secondary voltage at no load - between phases 415V -Vector group D yn11(1)Losses shall be as per ECBC 2017 revised in 2018 for dry type transformer guideline Load loss @ rated load & 75 degree celcius : - 7250 Watts (Max), % Impedance 4.5% (IS tol)Maximum ambient temperature 50 °C; Max Temp. Rise 90 °C over 50 °C ambient.Maximum altitude 1000 mHV winding temperature class FLV winding temperature class FEnclosure Yes Index of protection : IP31Thermal protection relay, electronic converter type : to be providedPrimay Side Termination : Cable Termination Secondary Side Termination : Terminals for Multiple Cable Termination with cable termination box. Installation & commissioning of 11 KV/ 415 volt, 500 KVA distribution transformer incl. carriage to the substation building within a lead of 30mtr by placing in position including S & F 150 X 75 mm C channel of required length and fixing after leveling fitting all components, connecting, checking & set of all instrument according to requirement as instructed by the EIC.

Earthing with 80 mm dia GI pipe (TATA-Medium)x 3.0 Mts.long and 1 No. 65 mm x 8 mm galvanized (Hot Dip) steel strip (4 Mts. long), 20 mm dia x 125 mm long galvanized bolt, double nuts, double washers including finishing both ends by making holes etc. and S & F 80 mm dia GI pipe (ISI-M) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts. [6 Nos for transformer neutral, 8 Nos for equipment body earthing and 3 Nos for Neutral earthing and 4 Nos for body earthing of DG set]. (As per PWD Sc Item No.2(e) of Page- G/1 of November, 2017)

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe. (As per PWD Sc Item No.3(a) of Page- G/2 of April, 2014)

Extra for treatment of soil by using salt & charcoal or coke for pipe electrode.(As per PWD Sc Item No.3(b) of Page- G/2 of November, 2017)

Supply and fixing of 80mm dia GI pipe (ISI-M) for protection of 65mm X 8mm GI strip in UG trenh as per direction of EIC (As per PWD Sc Item No.11(f) of Page- F/6 of November, 2017)

CABLING WORKS (HT):- Supply of 11 KV grade 3 core 300 sq.mm. XLPE(E) HT cable with Al. conductor (Make - Polycab/ Glostar / Crystal) confirming to IS:7098/(Part-II) 1985 with latest ammendment. And Laying only above HT cable from supply Co's gear to consumer's gear and consumar gear to 2 Nos transformer to be laid through masonery trench as per G.S. as per direction of EIC.(As per PWD Sc Item No.4.(b) of Page- F/3 of November, 2017)

Jointing of H.T. cable of 11 KV grade 3 core 300sq.mm. XLPE (UE) cable incl.supply of necy. jointing materials & compound (Heat shrink cable jointing kit of approved make) for switch gear & transformer terminations on H.T. sides incl. testing as per G.S.

Supply & fixing earth busbar of galvanized (Hot dip) MS flat 65 mm x 8 mm on wall having clearence of 6 mm from wall incl. providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required. (As per PWD Sc Item No.4(d) of Page- G/2 of November, 2017)

Connecting the equipment body to earth busbar incl. S & F 50 mm x 6 mm galvanized (Hotdip) M.S. flat on Wall/floor woth G.I. saddle as required and making connection to equipments with incl. drilling holes, nuts, bolts & washers as per G.S. (As per PWD Sc Item No.5(e) of Page- G/3 of November, 2017)

Supply & Installation of TEST LINK for earthing system using porcelain insulator fixed on wall with 65X8mm GI flat (300mm long).

Supply & Installation of TEST LINK for earthing system using porcelain insulator fixed on wall with 50X6mm GI flat (300mm long).

BATTERY BANK: S&F battery bank and battery charger: SITC of battery bank having DC system voltage 110V consisting of 9 Nos 12 Volt 63 AH SMF Lead Acid (Make- Exide/ Panasonic) along with terminal connectors, still rack, rails other accessories as required and as per approval of EIC.

SITC of 110V 10 A auto/manual float cum boost charger for charging above battery bank complete with connector, cables and other accessories with DC DB 1No I/C 63A, O/G-8 Nos 6/10/16A SP MCB (Make to be approved by EIC).

S& laying 240 sq. mm. single core multistrand PVC insulated flexible Cu cable in following manners from individual neutral earth busbar to different transformer neutral point as required (for transformer neutral earthing) in suitable dimension PVC flexible pipe as per direction of EIC.

Different Test( Insulation, High Pressure, Earthing etc) of total system comprising of different substation equipments (viz HT & LT Cables, Transformers , HT Switchgears etc) including callibration & setting of all protective relays at site and Finally charging & commissioning the entire system after obtaining approval from the Directorate of Electricity.

Submission of a sub- station drawing which should have showing HT & LT cable ducts ,single line power diagram , E.I. layout, Earthing system etc.

LT CABLING WORKS Supply & laying of 1.1KV grade 4 core 240 sqmm XLPE/A Al. Cable as per comfirming IS:7089 (Part-I) 1988 as per latest ammendment (Make- CCI/Gloster/Polycab/Crystal) through under ground trench with brick protection as per GS (From DG set to LT panel board) (As per PWD Sc Item No.1(c) of Page- F/2 of November, 2017)

Supply & laying of 1.1KV grade 4 core 240 sqmm XLPE/A Al. Cable as per comfirming IS:7089 (Part-I) 1988 as per latest ammendment (Make- CCI/Gloster/Polycab/Crystal) through through masonary trench as per GS (From transformers to LT panel board) (As per PWD Sc Item No.4.(b) of Page- F/3 of November, 2017)

S&F compression type cable gland complete with brass gland, rubber ring, for dust and moisture proof entry of 4 core 240sqmm XLPE/A Al. Cable as to GS (As per PWD Sc Item No.7(c) of Page- F/4 ofNovember, 2017)

Finishing the end of 4 core 240 sqmm XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials (As per PWD Sc Item No.8(b) (xxii) of Page- F/5 of November, 2017)

Supply & laying of 1.1KV grade 4 core 150 sqmm XLPE/A Al. Cable through masonary trench as per GS (From main LT panel to 2 Nos APFC panel) (As per PWD Sc Item No.4(a) of Page- F/3 of November, 2017) (Make- Crystal/Gloster/Polycab/CCI).

S&F compression type cable gland complete with brass gland, rubber ring, for dust and moisture proof entry of 4 core 150sqmm XLPE/A Al. Cable as to GS (As per PWD Sc Item No.7(c) of Page- F/4 of November, 2017)

Finishing the end of 4 core 150 sqmm XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials (As per PWD Sc Item No.8(b) (xx) of Page- F/5 of November, 2017)

S&F 250V 300mm sweep 1420 RPM heavy duty AC exhaust fan complete with all accessories and suitable size GI Coul after cutting wall and making holes incl. S&F nuts, bolts, washers & GI louver shutter and providing necy. length of connecting copper wire and mending good the damages to original finish (Make- EPC) zs per direction of EIC.

Supply & Fixing of 250V Timer DB (equivalent of 8 way SPN DB in size) with steel sheet enclosure double door , phosphitised powder coated , neutral bar, Din Rail with IP-43 protection comprises with 1 no.25A DP MCB ('C' Curve, 10 kA,),1 No daily Time Switch with and 1 no.25A Power contactor complete with internal wiring by suitable size of copper wire including 1 no. Auto Mannual bypass MCB Changeover Switch and provision for earthing attachment including LED indication light for running condition with locking arrangement (Make:- L&T/ABB/ Legrand/ Simens) for exhaust fan.

S&drawing 1.1KV grade 7 core 2.5 sqmm stranded armoured insulated copper control cable from transformer's WTI relay to VCB WT relay for power and control supply.

S&Drawing 1.1KV grade 2 core 2.5 sqmm stranded armoured insulated copper control cable from power DB to VCB and transformer's marshalling box.

S&F of following sizes compression type cable gland complete with brass gland, rubber ring, for dust and moisture proof entry of XLPE/A Al. Cable (a) 7 core 2.5 sqmm (As per PWD Sc Item No.7(c) of Page- F/4 of November, 2017)

Do----Do----- (b) 2 core 2.5 sqmm (As per PWD Sc Item No.7(a) of Page- F/4 of November, 2017)

Finishing of the PVC insulated wire ends by socketting with pin/ring type copper sockets and insulated tapes etc., including supplying sockets, tapes. (a) 2.5 sqmm (As per PWD Sc Item No.9(i) of Page- F/5 of November, 2017)

Making necessary inter connection from transformer winding temperature relay to WBVCB WT relay and power DB to VCB incl. Making connection etc. Complete by expert HT personal.

SAFETY EQUIPMENT Providing & fixing danger plates made of mild steel at least 2mm thick & vitreous enameled white on both sides & with inscription in signal red colour on front side as required. (a) High Voltage - size 250mm x 200mm

Do----Do----Do (b) Medium Voltage - size 200mm x 150mm

Supply and fixing safety instruction chart in word duly framed with 5mm thick glass as required (approx. Front area 1.20 sq.mt.)

Providing of 9.5 litre capacity GI bucket painted in post office red colour with prior coat of red-oxide paint and written with white paint 'FIRE' and mounted on MS angle iron frame with bracket and suitable base of appropriate size & capacity I/c filling sand etc.

Providing First Aid Box as approved by St. John Ambulance Brigade / Indian Red Cross conforming to IS 2217-1963.

Supply and fixing shock treat chart duly mounted on a wooden frame with 5mm thick glass as reqd. (approximate front area 1.20 sq.metre).

Providing of rubber mat 2 mtrs Length x 1 m. wide and 12mm thick to withstand 12 KV dielectric strength as per IS 5424-1969.

Providing of rubber mat 2 mtrs Length x 1 m. wide and 6mm thick to with stand 3.3 KV dielectric strength as per IS: 5424-1969.

Compound Lighting S&F street light luminarie IP 66 PDC Street light aerodynamically designed with better thermal management Make Philips-BRP360 LED 295 CW HO SLC S1 PSU GR SPD /similar specification of it in all respect of wipro/Crompton Graves)

S&F of 3" dia 2 mt minipole with baseplate to be fixed on rooftop incl .S&F 1.5 mtr long arm bracket (removle type) incl CC muffing (600X600X750) with neat cement finish & painting incl.S&F 200x150x100 mm 16 SWG CI loop box as directed by EIC

Supply & Laying only 1.1KV grade 4core 10 sqmm XLPE armoured Al. Cable recessed in wall as per direction of EIC

S&F compression type cable gland complete with brass gland, rubber ring, for dust and moisture proof entry of 2 core 6 sqmm XLPE/A Al. Cable as to GS

Finishing the end of 4 core10 sqmm XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials

Supply & Fixing of 250V Timer DB (equivalent of 8 way SPN DB in size) with steel sheet enclosure double door , phosphitised powder coated , neutral bar, Din Rail with IP-43 protection comprises with 1 no.25A DP MCB ('C' Curve, 10 kA,),1 No daily Time Switch with and 1 no.25A Power contactor complete with internal wiring by suitable size of copper wire including 1 no. Auto Mannual bypass MCB Changeover Switch and provision for earthing attachment including LED indication light for running condition with locking arrangement (Make:- L&T/ABB/ Legrand/ Simens) for Compound Light.

Supplying and laying of 1.1kV Gr.4 core 70 sqmm cable Ar/Al XLPE armoured cables with 2 nos. 8 SWG G.I. In existing masinery tench and partly underground trench.including necessary connection.as per direction of EIC. (for Lift).

Supplying and laying of 1.1kV Gr.4 core 35 sqmm cable Ar/Al XLPE armoured cables with 2 nos. 8 SWG G.I. In existing masinery tench and partly underground trench.including necessary connection.as per direction of EIC. (for Lift).

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry.. Finishing the end of the same by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials as to GS for XLPE/PVC armoured cables as below: For 4 core 70 sqmm cable

Do----Do---- For 4 core 35 sqmm cable

Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. below the ground level incl. excavation approx 1mtr3 of soft soil & restoring surface duly rammed By ISI-Medium GI pipe as directed by EIC. (for Lift).

S&F 100mm dia 5.4mm thick heavy duty MS black pipe suitable for exhaust system of 40 KVA DG set including necessary fabrication cost at site and hiring charges of scaffoling as to GS.

S&F 100mm dia 5.4mm thick heavy duty MS black pipe bend having suitable for above exhaust pipe as per direction of EIC.

S&F 100mm dia 5.4mm thick heavy duty MS flange duly welded with exhaust pipe as per direction of EIC.

S&F 150mm dia 5.4mm thick heavy duty MS black pipe suitable for exhaust system of 40 KVA DG set including necessary fabrication cost at site and hiring charges of scaffoling as to GS.

S&F 150mm dia 5.4mm thick heavy duty MS black pipe bend having suitable for above exhaust pipe as per direction of EIC.

S&F 150mm dia 5.4mm thick heavy duty MS flange duly welded with exhaust pipe as per direction of EIC.

S&F MS clamp made of 40mm X 6mm MS flat suitable for 100mm dia heavy pipe with nuts, bolts, washers etc as per direction of EIC.

S&F MS clamp made of 40mm X 6mm MS flat suitable for 150mm dia heavy pipe with nuts, bolts, washers etc as per direction of EIC.

S&F MS tray for necessary supporting arrangment of 100mm dia exhaust pipe made of 2 Nos 40x40x6mm MS angle and 500mm long cross bar between main angle with 40x40x6mm MS angle duly welded between the main legs and cross bar and painting 2 coats of sythetic enamelt paint over Red lead primer after preparation of surface by emery paper as per direction of EIC.

S&F MS tray for necessary supporting arrangment of 150mm dia exhaust pipe made of 2 Nos 40x40x6mm MS angle and 500mm long cross bar between main angle with 40x40x6mm MS angle duly welded between the main legs and cross bar and painting 2 coats of sythetic enamelt paint over Red lead primer after preparation of surface by emery paper as per direction of EIC.

Supply and making of thermal insulation completed with 2" thick minarwool suitable for 100mm dia MS black pipe.

S&F MS structure supports for control panel of DG set and battery stand fabricated at site incl. Necessary welding as per direction of EIC.

S&darwing 1.1KV grade single core 120 sqmm PVC insulated flexible copper wire in suitable PVC flexible pipe from earth bus to brought out neutral terminal of the DG set as per direction of EIC.

S&drawing 1.1KV 10 core 2.5 sqmm XLPE armoured cable of copper conductor (Approved make) from AMF panel to control panel of DG set partly recessed in floor and partly in UG trech with brick protection as per direction of EIC.

S&Drawing 1.1KV grade 4 core 2.5 XLPE armoured cable of copper conductor (Approved make) from AMF panel to battery charger in masonary trench as per direction of EIC.

S&Drawing 1.1KV grade 2 core 4 sqmm PVC insulated un armoured work shop cable of copper conductor (Approved make) from battery charger to HT panel in masonary trench as per direction of EIC. N.B: (a) The Agency must procure the materials from the Manufacturer / OEM or from their authorized. Sales channel so that the standard warranty / support of the Manufacturer / OEM becomes applicable to the products to be delivered and installed by them. (b) Documents that authenticates such procurement from the Manufacturer / OEM or from their authorized sales channel and standard warranty / support should be sent from the e-mail of the Manufacturer / OEM / authorized sales channel to the e-mail of Engineer-in-Charge and hard copy of it to be submitted during execution of work / submission of bill. (c) If any refurbished material is supplied and installed, penal action will be taken as per existing rules.

S. A. ENTERPRISE

M/S N. C. HORE

SIKDER ENTERPRISE

PARTHA SARKAR

Mars Developments

RASH ELECTRICAL WORKS

GHOSH ELECTRIC WORKS