Creation of 250 KVA Substation along with Its HT/LT network at Brari Nambal lagoon Baba Demb

Supply, installation, testing and commissioning of:

9 mts steel tubular pole post 410 (SP-33) IS 2713 (part-II) 1990 as per REC Standard

MS Channel iron(ISLC 75 designation) 100x50x50x6 mm 9' long (2 No) duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paintas per REC Standard .

MS Channel iron(ISLC 75 designation) 75x40x40x6 mm 9' long (8No) duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paintas per REC Standard .

MS Channel iron(ISLC 75 designation) 75x40x40x6 mm 6' long (2 No) duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paintas per REC Standard .

MS Angle iron braces (ISA 5050 designation) 50x50x6mm 6' long (4 No) duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paint as per REC Standard

Providing of Chemical Earthing of Sub-Station for neutral earthing 2 mtr long 50mm dia GI to copper with additional 1 length GI pipe 38mm connected with chemical earthing and with extension of GI strip 25*3mm upto all equipments.Earthing has been laid through insulators to avoid with the existing structure for LA.

Galvanized Nuts & Bolts & washers of sorts. (Galavinsied as per IS-2633/1986)

GI Strip for Earthing 25x5mm as per REC Standard

300 mm² PVC single core LT cable connforming to IS 1554 (part -I) 1988 for incoming and outgoing circuits to be connected with LT Network including thimbling with 300 mm sq Al lugs

Bi matellic Clamps19mm².

11KV 400 AMP Gang Operated switch gear

Drop-out set (Horn-gap type) as per REC standard F6

11KV Lighting Arrester Set (Station type) as per REC standard fonforming to IS 3070 part -III and as per REC standard

11/0.433kV, 3-phase Distribution Transformers with Bimetallic Terminal Connectors Energy Level-2, ( Copper wound 250kVA or higher kVA ratings) , and with LV Cable Box having detachable Aluminium Gland plate approved by the Department including earthing of Transformer along with fixing of flat iron strip to be fixed on earthling insulating boots of Sub Stations on two poles structure as per REC Standard F1,F2, F3 F4 &F10

LT Distribution Box for 250 kVA DTR with MCCB for incomer & SFU's for Outgoing Circuits

11KV pinwith insulators Brown glazed porcelain insulator confirming to IS-731/1971 Amendments 1 to 5 type B with 320mm minimum creepage distance and with lead/Zinc thimbles suitable for use with G.I forged pin having small steel heads as per IS-4l86 (P.I) 1993 and IS-2486 (P.II)1989 and revision with latest amendments if any as per REC Standard C-1

Danger plate as per REC Standard

Earthing Rods as per REC Standard (J-1) (Spiral Type)

Earthing insulating boots

Providing, Erection, testing & commissioning of MS Angle iron for Transformer Belt (ISA 5050 designation) 50x50x6mm 10' long duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paint as per REC Standard

Anticlimbing Device as per REC Standard

Sign Board

Cement bottoming of pole structures as per REC

Painting of poles/ structure with 2 coats of Al. & red oxide paint and painted of orange colouras per REC Standard

Supply, installation, testing and commissioning of:

11 mts steel tubular pole post 410 (SP-56) IS 2713 (part-II) 1990 as per REC Standard

9 mts steel tubular pole post 410 (SP-33) IS 2713 (part-II) 1990 as per REC Standard

MS Channel iron(ISLC 75 designation) 75x40x40x6 mm 6' long (4No) duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paintas per REC Standard .

MS Angle iron braces (ISA 5050 designation) 50x50x6mm 6' long (4 No) duly fabricated as per site requirement and painted with two coats of Red oxide and Al. Paint as per REC Standard

Galvanized Nuts & Bolts & washers of sorts. (Galavinsied as per IS-2633/1986)

Danger plate as per REC Standard

Earthing Rods as per REC Standard (J-1) (Spiral Type)

50 mm ²ACSR as per REC Standard. Conductor(rabbit ) IS 4826/1979 and laid as per REC standard

100 mm ²ACSR as per REC Standard. Conductor(dog) IS 4826/1979 and laid as per REC standard

LT Shackles Insulators brown glazed 90X75MM along with mukki clamps clamp

Pole clamps fabricated out of MS channel

Cement bottoming of pole structures as per REC

Painting of poles/ structure with 2 coats of Al. & red oxide paint and painted of orange colouras per REC Standard

Supply, installation, testing and commissioning of:

11kV Pilfer resistant metering cubicle for 3phase 4 wire metering system made of MS Sheet steel thickness not less than 2mm duly power coat painted suitable for indoor as well as outdoor as per the site requirement. The cubicle shall be painted through 7-tank process. The External dimensions should be adequate. Panel having two compartments upper Meter compartment and lower CT/PT compartment. Provided with synthetic or semi synthetic gasket firmly glued to the sufrace, Dust, weather and Vermin proof and shall comply degree of protection IP 65 both the chambers having one sided hinged door arrangments. The metering panel shall be provided with two No MS channels of size 100 x50 mm on the front and rear sides duly welded and 4 No of lifting hooks. It should be possible to take meter reading manually, through CMRI and computer without opening the LV chamber door.

Single Phase, Single core, single ratio, Epoxy resin Cast Current Transformers suitable for 11kV, copper wound primary type with rated burden 5VA and accuracy class 0.5 or better and conforming to IS 2705 (part-I & II) amended upto date. ISF shall be upto 5 CT ratio 25/5 for 250kVA DT

11kV/ 110 V, Three phase epoxy resin cast PT with rated burden 15VA per phase and accuracy class 0.5 or better and conforming to IS:3156 (part-I&II) amended upto date withproper colour coded identification. PTs shall be of uniform insulating and withstand separate source 23kV pf for one minute.

Bus Bar details: CTs bus bar:- 40x6 mm copper strip or adequate size PTs bus bar: Copper wire 8 SWG or 30x0.6mm copper flat strip to connect PT terminal or adequate size duly insulated by the monoplast tape

PVC Copper wire flexible multi-strand of required size for secondary connections for CT wiring the minimum wire size shall be 4 mm2 (RYB) and for PT wiring minimum wire size shall be 2.5 mm2 (RYB).

Copper Lugs preferably ring type duly crimped for termination of wires and tapes

Grounding bus of minimum 40mm copper, 25cm long fixed to the unit in HV chamber. The CTs, PT meter and 11kV Cable sheath shall be grounded to the bus through grounding wire (green) of min size 10mm2

3Ph3 Wire HT CT/PT operated Fully static Smart Tri-Vector Energymeters DLMS Compliant Category 'C' with RS232 port for modem compatibility. 11kV/110V, Ph-Ph (3P,3W) meters for measurement of different electrical parameters including Active Energy (kWh/ MWh), Reactive Energy (kVArh/MVArh), Apparent Energy (kVAh/ MVAh) etc. (make L&T, Secure,ABB)

Independent flexible PVC pipes for CT wiring and PT wiring of appropriate size from HT compartment to meter compartment

Pedestal made out of MS Channel of size 75 x 40 mm or angle iron of size 65 x 65 x 5 mm,duly painted as per site requirement for mounting of metering panel including concrete foundation wherever required including cost of nuts and bolts

3 Core 11 kV Aluminium cable XLPE armoured 35 mm2 including cost of clamp for its fixing where ever required

Cable termination kits suitable for 3 x 35 mm2 XLPE Cable (indoor/outdoor)

Earthing 40 mm GI Pipe or 20 mm GI rod, 2.5 mtr for metering unit. Earthing of metering cubicle through two No 25 x 5 mm flat iron.

Laiba electrical Suppliers and mechanical work

I.T ELECTRIC SUPPLIER

AYMAN ELECTRIC SUPPLIERS