WBSIDCL/42 elec of 2019-20 Sl 1

Amount

Section I: PACKAGE SUB-STN, HT & LT CABLES AND ACCES. 11 KV 630 KVA COMPACT SUB-STN Supply, installation, testing and commissioning of 630 KVA out-door canopy type sheet steel (3 mm thick) enclosed weather proof 'Compact Substation' (Make- C&S/ ABB/ schneider) as per specification and drawing. The sub-stn shall have 11kV SF6 Gas insulated RMU with 11 kV, 630A 21kA for 3 Sec VCB, 630 KVA, 11/0.433kV copper wound , Tap: +5% to -5% @ 2.5% Resin Cast Dry type Transformer and LT Power Dist. Panel in separate compartment and comprise of following:

11 kV SWITCHGEAR COMPARTMENT 11 kV SF6 gas insulated RMU with 630A 21KA for 3 sec Vacuum Circuit Breaker with 'manually operated spring charged closing mechanism' and release for tripping . The VCB shall control the incoming supply to a 630 KVA 11 /0.433kV Transformer. The 11 kV VCB shall be complete with-

Each VCB Feeder consists of following : Manually spring charging arrangement and manual close & open push buttons, ON / OFF indication: 1 No., Self powered O/C & E/F relay type CSPR with Single core cast resin type CT (Protection Core – 2.5VA & CL-5P10): 1 set, Manually operated 630A load breaker switch with built-in earth switch having full making capacity : 1 No., Mechanical position indicator. Switch ON/OFF/EARTHED 1 No Live Cable Indication 1 No Cable compartment cover interlocked with earth switch. 1No Cable termination bushings suitable for 3 no. 1CX300mm2 XLPE cable 3No Cable termination cover boots (Push on type 1set

630 KVA TRANSFORMER COMPARTMENT 1 no. 630 KVA 11kV/433V Dyn11 Resin Cast Dry type transformer with provision for off-circuit tappings on HV side of range +5.0% to -5.0% @2.5% and complete with all accessories including WTI( alarm/trip contact) as per specification and standard. Class of insulation shall be "F". NLL & FLL shall be 450 Watt & 1945 Watt. Winding Temperature Indicator 1No

LT POWER DIST. PANEL COMPARTMENT Sheet sleel enclosed, floor mounting, free standing, front operated, compartmentalised, cubicle type 'LT POWER DIST. PANEL' 1200A 3Ph 4W Cu. bus-bar to receive power directly from Transformer and suitable for 415V, 3 Ph, 4W 50Hz AC. The panel shall be complete with switchgears like ACB, CTs, Meters, Protection, Indication, Control equipments and other accessories as required as per specification and Drawing. The panel shall comprise of following incoming and outgoing feeders:

LT Switchgear 433V LT Switchgear with 1200A Copper busbars. Interconnection between Transformer and LT Switchgear shall be using Copper Busbar. 1 nos Incoming cum Outgoing : 1000A FP 50KA ACB for O/L S/C protection: 1 no. Indication lamps with protection MCB: 1set Outdoor Enclosure Outdoor type enclosure having modular construction of Galvanised Sheet Steel in corrugated type wall design for better heat dissipation and providing robust construction. The Enclosure shall have IP54 degree of protection for HT & LT switchgear compartment & IP23 degree of protection for Transformer compartment. The enclosure exterior shall be painted with epoxy based powder paint ( colour RAL 7032 ). Each compartment will be provided with the door and pad locking arrangement. Doors of transformer compartment are fitted with Arc reflectors from the inside for providing better safety. The Compartment illumination lamp with door operated switch shall be provided for each compartment. 1set

Outdoor Enclosure: Outdoor type enclosure having modular construction of Galvanised Sheet Steel in corrugated type wall design for better heat dissipation and providing robust construction. The Enclosure shall have IP54 degree of protection for HT & LT switchgear compartment & IP23 degree of protection for Transformer compartment. The enclosure exterior shall be painted with epoxy based powder paint ( colour RAL 7032 ). Each compartment will be provided with the door and pad locking arrangement. Doors of transformer compartment are fitted with Arc reflectors from the inside for providing better safety. The Compartment illumination lamp with door operated switch shall be provided for each compartment.

Interconnection & Earthing: Interconnection Between HT switchgear & Transformer using Al. Armoured XLPE Single core cable & Interconnection between Transformer & LT switchgear using Busbars. Internal earthing connections by 50 x 6mm GI strips. 1set

Note: The HT VCB, Transformer & LT ACB shall be interconnected through bus bar of 1200Amp cross section. Suitable provision to be kept for termination up to 3C x 240 Sq. mm.11 kV Earthed Grade incoming cable at HT side and 1.1 kV Grade 300 sq.mm XLPE Arm. copper conductor outgoing cables of above mentioned sizes. Illumination lamps and Plug/socket with switches to be provided inside the canopy for maintenance. Package Sub-Station is outdoor plinth mounted type. All type of civil work, construction of foundation, unloading, Erection, testing and commissioning for package substation will be in scope of work. The Foundation as per approved drawing will also be in the scope of work. All type test & routin test report as per latest IS/IEC is to be submitted. Package Sub-station will be complete with the internal interconnections & earthing. Accessories required for the external connections of HT & LT cables like termination kits , lugs , glands etc & extending of earth bar to earth pits will also be in the scope of supply.

11 KV HT CABLES LAYING AND TERMINATION Supply, Laying, dressing, clamping, testing and commissioning of 11 kV earthed Grade, stranded Aluminium conductor, XLPE insulated, extruded PVC inner sheathed, armoured, PVC type ST-2 outer sheathed cable conforms to IS 7098 (Part-II) of size 3C x 240 Sq. mm. in ready concrete/brick trenches on trayfloor or through GI/Hume pipe as per relevant standered and specification. (Make: Polycab/Gloster as approved by EIC)

The scope of work for laying includes -

i) Laying of cable in 'Masonary Trench' /Hume pipe as per relevant standard and practice /norms.

ii) Fabrication and fixing of cable brackets / supports as per drawing /standard / norms as applicable.

iii) Covering the cable trenches with RCC slab / chequired plate (with necessary fabrication)

iv) Supply and filling of trench (after laying) with dry sand.

v) Minor civil work as required.

vi) Testing of insulation resistance before and after laying.

3C X 240 Sq.mm.-11KV (E) XLPE

11 KV HT CABLE- END TERMINATION

Supply of meterial and end termination and connection of 11 KV Earthed grade 3Cx240 Sq. mm. Al conductor armoured XLPE insulated cable by using (Reychem make) suitable heat shrink type cable jointing kits and accessories as recommended by cable/kit manufacturer. The cable termination/jointing shall be done by experienced and approved HT cable jointer. The scope includes supply of all consumable and accessories.

The scope of erection work for termination/jointing includes-

i) Supply of all accessories including termination kit.

ii) All arrangement (temporary/permanent) required for the job.

iii) Termination work to be done by experienced and approved/licensed HT cable jointer.

iv) Minor civil work as required.

End termination of 3C X 240 Sq.mm. 11 kV (E) grade cable (Indoor)

LT POWER CABLE (SUPPLY & LAYING) Supply, laying, testing & commissioning of 1.0 C x 300 Sq. mm. (Aluminium) 1.1 kV Grade Aluminium conductor, XLPE insulated, PVC inner sheathed, PVC type ST-2 outer sheathed and Galvanized wire/strip armoured LT Power Cables conform to IS 7098 Part-I (latest edition). The cables shall be laid along ready concrete/brick trenches on tray/floor or through GI/Hume pipe as per relevant standered and specification. The scope of laying includes dressing, anchoring, fixing/clamping/marking including supply of cable clamps, cable identification tags etc.. The job shall be executed to the satisfaction of engineer of client. (Make: Polycab/Gloster or as approved by EIC) NOTE: Lengths of different cables are tentative. Actual length to be measured at site after finalization of location of 'CSS' and LT Panels. Procurement to be done accordingly.

Supply of material and end termination & connection including dressing and clamping of 4.0 C x 300 Sq. mm. 1.1 kV Grade XLPE insulated, aluminium conductor armoured LT Power cables of following sizes using heavy duty single compression brass cable gland, crimpping type socket & other consumables as required. The scope includes supply of all consumable and accessories.

EARTHING WORK Earthing with Copper plate (610x610x3mm size) having weight of 9.84 Kg and 1 No. 25x5mm Copper strip (3.20 mt long) & 1 no. 6 sqmm PVC insulated stranded Copper wire (4 Mt long) incl. S & F 15 mm dia GI pipe (ISI-Medium) protection (4 mt. long) to be fillied with bitumen, partly under the ground level & partly above ground level to an average depth of 3.65 Mts. below the ground level and restoring the surface duly rammed incl. providing 3.0 mt long, 25 mm dia GI pipe (ISI-Medium) for periodic treatment, incl. providing masonery enclosure on the top of the earth electrode of overall size 86.36x86.36x46cm 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 36.56x35.56cm with locking arrangement, GI reducer and treatment of soil by using salt & charcoal or coke for plate electrode

(b) Earthing with 80 mm dia GI pipe (TATA-Medium)x 3.0 Mts. long and 1 x 19/8 stranded GI (Hot Dip) wire (4 Mts. long), 25 mm dia x 150 mm long galvanized bolt, double nuts, double washers including socketing at both ends of stranded GI (Hot Dip) wire by crimping sockets/ thimbles and S & F 40 mm dia GI pipe (ISI-Medium) 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 (For Sub-station Neutral/Equipment earthing) :

Excavation of soil for installation of Earth Electrode and filling & ramming.For Soft Soil

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

(b) Extra for treatment of soil by using salt & charcoal or coke for plate electrode

a) Neutral Earthing for 'Transformer of CSS' & '250 KVA Proposed DG' - @ 2 nos. each x 2 = 4 nos. b) Body earthing for 'WBSEDCL HT RMU', 'CSS', '250 KVA DG & AMF', ' 2 nos. LT Panels (LT Dist Panel + DG Dist Panel) & 'Fire Panel' - @ 2 nos. each x 6 = 12 nos. Total - 16 nos.

Supplying, laying, jointing and connection of earth continuity conductor for equipotential bonding, interconnecting system Neutral/ equipment body and earthing station. The scope includes supply & fittings of accessories like earthing clamp, saddle etc. and jointing of cable/strips by socketing/welding/ brazing/soldering etc.

For 'CSS' Neutral (2 lengths) & Body (4 lengths), 'WBSEDCL VCB Room earth bus' (2 lengths), '250 KVA DG Neutral & body' (4 lengths) - Total 12 lengths

COPPER STRIP

50x6 mm. Copper strip for neutral earthing. (Hot dip galvanised)

GI STRIP

ii) 65x8 mm. 'Hot dipped' GI earth strip.

For interconnection between earth stations/equipotential bonding & earth bus in side WBSEDCL VCB room

iii) 50x6 mm 'Hot dipped' GI earth strip

For earth bus in electrical rooms & body earthing of LT panels.

NOTE: Lengths of different 'Earth continuity conductors' are tentative. Actual length to be measured at site after finalization of location of eart stations and associated equipments. Procurement to be done accordingly.

MISC EARTHING WORK

Supply, fabrication and erection of earth bus 'test link' by 65 x 8 mm. GI strip, drilling hole, grouting on wall and connection with earth station.

Supply of material and earthing of doors and windows of WBSEDCL VCB room with braided copper/cu wire as per rule/norms.

SAFETY EQUIPMENTS

Supply and Installation of following safety items

i) 11KV Grade Chequered Rubber Mat (2 Mtr. x 1 Mtr.) x 12 mm Thick.

ii) 415V Grade Chequired Rubber Mat (2 Mtr. x 1 Mtr.) x 6 mm. Thick

ii)11 KV Grade Rubber Hand Gloves

iii) 4.5 Kg. Carbon Di-oxide type Fire Extinguisher

iv) 3 Nos. Fire bucket with Stand

v) HT & LT Danger Plate/Board

vi) Shock Treatment Chart (in wooden frame)

vii) First Aid Box with Medicine

SERVICE JOBS

High pressure testing of equipments of 'CSS' like HT VCB, Transformer, Incoming HT Cable and LT Panel and submission of test report to the office of the relevant statutory authority and obtaining approval of the same for commissioning of the system.

LT PANELS:

Supply, Installation, Testing and Commissioning of sheet sleel enclosed, floor mounting, free standing, dust and vermin proof, front operated rear openable, compartmentalised, cubicle type 'MAIN DIST. PANEL' complete with 1200A TPN Cu. bus-bar and suitable for 415V, 3 Ph, 4W 50Hz AC. The panel shall be fabricated out of 3 mm. thick sheet steel (CRCA), suitable for indoor installation and shall be complete with switchgears like ACB, main switch, CTs, Meters, Protection, Indication, Control equipments, name plate etc. and other accessories as required as per specification and Drawing. The panel shall comprise of following incoming & outgoing feeders including inter connection with cu. bus bar and all other allied work.

INCOMING FEEDERS

BUS BAR: 415 V, 1200 A Cu. 4 Bars

OUTGOING FEEDERS

400A Switch-Disconnector unit: 3 Nos. 415V TPN S-D open execution in existing cubical with nuts, bolts etc incl. Handle Assembly, Extended Rom & 3 nos. HRC fuse as per rating.

250A Switch-Disconnector unit: 5 Nos. 415V TPN S-D open execution in existing cubical with nuts, bolts etc incl. Handle Assembly, Extended Rom & 3 nos. HRC fuse as per rating.

200A Switch-Disconnector unit: 3 Nos. 415V TPN S-D open execution in existing cubical with nuts, bolts etc incl. Handle Assembly, Extended Rom & 3 nos. HRC fuse as per rating.

125A Switch-Disconnector unit: 1 No. 415V TPN S-D open execution in existing cubical with nuts, bolts etc incl. Handle Assembly, Extended Rom & 3 nos. HRC fuse as per rating.

Supplying and fixing MCCB SS enclosure with IP- 20/30 protection, pwder coated provision for housing Four pole (4P) MCCB, concealed in wall after cutting the wall & mending good the damages to original finish / on flat iron frame incl. painting, connection & provision for earthing attachment. (Make: L&T, Legrand, Siemens)

Supplying and fixing double door Vertical TPN MCB Distribution board for MCCB incomer with IP-42/43 protection, on angle iron frame on wall & mending good the damages to original finish incl. Inter connection with suitable size of copper wire and neutral link & provision for earthing attachment. (Make: Legrand/Seimens/L&T)

6 way Enclosure (SVTDBM6T1)

8 way Enclosure (SVTDBM8T1)

12 way Enclosure (SVTDBM12T1)

Supplying and fixing 415 V Four Pole MCCB of Breaking capacity 35kA with fixed thermal and fixed magnetic / adjustable thermal and fixed magnetic setting in existing DBs / enclosure and necessary connection. (Make: Legrand/Seimens/L&T) as Incoming of VTPN.

Supplying and fixing 240/415 V MCB of Breaking capacity 10kA & C characteristics on din rail of existing DBs and necessary connection. (Make: Legrand/Seimens/L&T) as outgoing of VTPN.

Supplying and fixing double door sheet steel (16SWG), powder coated cable end box for TPN DB horizontal / vertical enclosure with IP-42/43 protection, on angle iron frame on wall & mending good the damages to original finish with nuts bolts etc incl. provision for earthing attachment

Laying of cable 4 core 16 and 25 sqmm on wall/surface incl. S & F MS saddles with earthing attachment in 10 SWG GI (Hot Dip) Wire, making holes etc. as necy. mending good damages and painting

Laying of cable 3½ core 35 sqmm on wall/surface incl. S & F MS saddles with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire, making holes etc. as necy., mending good damages and painting

Laying of cable above 3½ core 90 sqmm and upto 3½ core 150 sqmm on wall/surface including S & F MS clams with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire, making hole etc. as necy., mending good damages and painting

Supply below mention power cable PVC insulated, Al. conductor, armoured (Make: Polycab/Gloster or equ. as approved by EIC)

3.5 core 185 sq.mm

3.5 core 120 sq.mm

3.5 core 95 sq.mm

3.5 core 35 sq.mm

3.5 core 25 sq.mm

4 core 16 sq.mm

Supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables as below :

3.5 core 185 sq.mm

3.5 core 120 sq.mm

3.5 core 95 sq.mm

3.5 core 35 sq.mm

3.5 core 25 sq.mm

4 core 16 sq.mm

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

3.5 core 185 sq.mm

3.5 core 120 sq.mm

3.5 core 95 sq.mm

3.5 core 35 sq.mm

3.5 core 25 sq.mm

4 core 16 sq.mm

Supply & Fixing of perforated GI cable tray with perforation not more than 17.5% suspended from ceiling incl. S&F GI connector, 6mm dia MS suspender, bolts & nuts, steel fastener etc. as required of the following size. Incl. Al painting of MS support. With 25x25x3mm angle iron support.

200x50x1.25mm (18SWG)

300x50x1.25mm (18SWG)

Supplying & fixing sheet metal (16 SWG) Iron Clad Busbar chambers on angle iron frame on wall, incl. earthing attachment and painting as required – (As per Drawing no. 470 of PWD Specification Book – May 1991): 4 bars 415 V, 315 A

Supplying and fixing Sub-Main Distribution board for MCCB incomer with IP-43 protection, on angle iron frame on wall & mending good the damages to original finish incl. Inter connection with suitable size of copper wire and neutral link & provision for earthing attachment (Make: L&T or as approved by EIC)

SMDB-TN250D, O/G 100A 12 ways - 1 no.

Side cabling Box - 2 nos.

Corner Box - 4 Nos.

Metering Extension Box - 1

Boyyom Cabling Box-1

Incomming- 250A MCCB - 1 no.

Outgoing - 63A MCCB - 12 nos.

250-5A CT - 3 Nos.

LED Indicationg Lamp - 3 nos.

Ammeter - 1 no.

Volt meter - 1 no.

Supplying and fixing Sheet steel Main Switches on angle iron frame on wall. (Make: L&T/Havells/Siemens)

415V, 100 A TPN with fuse on L&N

415V, 63 A TPN with fuse on L&N

415V, 32 A TPN with fuse on L&N

CHAKRABORTY ENTERPRISE