Electrical installation works

Amount

Supply & Delivery of Indoor-type, floor mounted,metal clad, single tier, fully compartmentalized,free standing,630A 11 kV VCB Panel with 3 Nos VCBs (1 Incomer + 2 Outgoing), totally enclosed and fully interlocked , horizontal drawout, horizontal / vertical isolation type breaker as per IS 13188, as ammended upto date and as per detail specification attached ( uploaded in the specification section) , suitable for use on 11 KV, 3 Phase,50 Hz AC supply to energise Two nos 500 KVA Oil Type Transformers. [ Make : ABB / Siemens / CGL].

Installation & commissioning of the above 11 kV VCB 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.

Supply & Delivery of Indoor type Sealed Tank design 500 KVA 11kV/433V, 3 phase, 50 Hz, Dyn11, KNAN type Sealed type Copper wound Transformer with Off Load Tap Changing Arrangement on HV side in steps of 2.5% , +5 to -10% having cable end boxes on HV side suitable for 3 Crore X 300 Sq. mm. XLPE cable of 11 kV grade on HT side and 3RX4CX240 sq. mm in LV side complete with all accessories incl.

first filling of filtered dehydrated K Class natural Ester Oil bioTransol (as per IS 16659) and confirming to IS 1180 and losses shall be as energyefficiency Level 2 only i.e at 50% load 1.51 KW(max) & 100% load 4.3 KW(max) with an impedence of 4.5% i/c as per specification attached complete in all respects as required at site. Design ambient to be considered as 50 Deg C. All the balance parameter like temp rise, Basic insulation level, flux density etc shall be strictly in accordance with IS 1180 Part - 1 only. as per detailed specification attached ( uploaded in the specification section).

Installation & commissioning of 11 KV/ 433 volt, two 500 KVA Oil type distribution transformer incl. carriage to the substation building within a lead of 30mtr by placing in position and fixing after leveling fitting all components, connecting, checking & set of all instrument, relays according to requirement as instructed by the EIC incl. S&F base channels etc.

SITC of floor mounted Indoor type extensible cubical MV switchboard, fabricated by CPRI approved panel maker having compartmentalized design, fabricated out of 14 SWG (2.0 mm) nominal thickness CRCA sheet steel,front and back openable, hinged, single shuttered, with incoming ACBs & Outgoing MCBS and all accessories as per size, design & drawing to be approved by EIC and conforming to IS with latest modification and as per detail specification attached (uploaded in the specification section) [LT MAIN PANEL IN THE SUBSTATION]

Making testing arrangement and submitting the test report for high voltage testing of specified voltage incl. checking & testing of all HT / LT equipments by authorized firm of Directorate of Electricity & commissioning the installation after obtaining the Approval of Directorate of Electricity.The scope shall be also included the necessary approval from Authority also.

Supply & fixing 75x45 mm "C" channel having length of 2 mtr. each channel incl. nuts, bolts and washer etc.

HT/ LT CABLING IN SUBSTATION

Supplying of 11KV (UE) Grade XLPE Aluminium conductor, PVC sheathed, armoured cable conforming to IS 7098, of earthed system of following size. [ From Supplier HT Gear to Consumer HT Gear and to Transformer]. [Make : Nicco / Gloster / Polycab / Havells / Crystal]

a) 3 Core x 240 Sq.mm

Making heatshrinkable joints indoor type to the ends of the following XLPE HT cable at the transformer end as well as at the VCB ends supplying with necy. jointing kits (Raychem), sockets, sleeves, anti-corrossive paste, wires, solders, jointing compounds, rubber sheets etc. incl. supplying of necy. tools & tackeles for crimping the end sockets, soldering irons & making of glands at the both end of the cable as per directions of EIC

a) 3 Core x 240 Sq.mm

Laying of 1 No. 11KV (UE) Grade XLPE Aluminium conductor, PVC sheathed, armoured cable confirming to IS 7098, of earthed system of following size in the existing Masonary Open Duct as required.

a) 3 core 240 sqmm 11KV XLPE HT cable

EARTHING

S& laying 240 sq. mm. single core multistrand PVC insulated flexible Cu wire in suitable size of PVC flexible pipe (reinforced) from nutral earth busbar to transformer point as required (for Transformer /Generator neutral earthing) including Socketing both sides by Cu Socket.

Earthing with Copper plate (610 x 610 x 3mm size) having weight of 9.84 Kg and 1 No. 25 x 5mm 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 as per detail specification attached (uploaded in the specification section) [FOR TRANSFORMER NEUTRAL AND DG SET EARTHING]

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

Extra treatment of soil by using salt & charcoal for plate electrode as to G.S.

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

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.

Insulating the 65 x 8 mm M.S. flat incl. S&F black heat shrink PVC sleeves etc. The PVC tube sleeve to be inserted on the GI flat and heat shrinked by heating apparatus by skilled technician carefully without damaging the PVC sleeve as per direction of the EIC (for transformer neutral earth bus bar).

Providing and fixing 50 mm X 6 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

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

b) Medium Voltage - size 200mm x 150mm

Providing and fixing carbon dioxide (CO2) type fire extinguishers conforming to IS 15222-2002 and cylinders fully charged of following capacity (4.5 Kg ) [Make - Fire Shield / Ceasefire]

Supply and fixing of foam fire extinguishers conforming to IS 4989-2006, Portable type 9 lit capacity hanged on wall with bracket complete as required. [Make - Fire Shield / Ceasefire]

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 set of 4 nos. 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 13115-1991.

Supply and fixing shock treatment 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 33 KV dielectric strength as per IS 15652-2006.

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 15652-2006.

S/F of 860 mm wide and 8 mm thick M.S checker plate including painting for covering the trench.

LT CABLE

Supplying of PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade conforming to IS 7098 of following size in the existing Masonary Open Duct. [ From TR & DG set to main panel, Main Panel to Building Panel & to VTPN].[ Make : Nicco / Gloster/Polycab / Havells/Crystal ]

a) 4Core x 240 sq.mm

b) 4Core x 120 sq.mm

c) 4Core x 70 sq.mm

d) 4Core x 50 sq.mm

e) 4Core x 35 sq.mm

f) 4Core x 16 sq.mm

Laying of cable through existing covered masonry trench incl. taking out RC covers, setting them in order, mending good the damages filling the trench with fine dry sand incl. supplying sand [4/F3]

a) 4Core x 240 sq.mm

Laying of one cable in underground trench 460 mm wide x 760 mm average depth, with brick protection on the top of the cable with 8 (eight) Nos. bricks per metre, including filling the space between the brick & cable and also the trench with shifted soil, leveling up and restoring surface duly rammed [1 / F2]

a) above 35 sqmm and upto 185 sqmm

b) above 185 sqmm

Laying of two cables in an underground trench in single tier formation (horizontal), the trench size : 680 mm x 760 mm average depth, with brick protection on the top of each cable 8 (eight) Nos. bricks per Mtr. and 4 (four) Nos. bricks per Mtr. as separator between the bricks and cables and also trench to be filled up with shifted soil, levelling up and restoring surface duly rammed [2/F2]

a) above 185 sqmm

Laying of cable on wall/surface incl. S & F MS saddles with earthing attachment & making holes etc. as necy. mending good damages and painting as below:

a) upto 3/4 core 25 sqmm with earthing attachment in 10 SWG GI (Hot Dip) Wire

b) from 3/3½/4 core 35 sqmm to 50 sqmm with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire

c) above 3½ / 4 core 50 sqmm and upto 3½ / 4 core 90 sqmm with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire

d) above 3½ / 4 core 90 sqmm and upto 3½ / 4 core 150 sqmm with earthing attachment in 2 x 10 SWG GI (Hot Dip) Wire

Laying of cable as below, after cutting floor/pavement/wall/ and making holes incl., embedding the cable at an average depth as below and mending good the damages to original finish incl. removing the rubbish [5/F3]

a) Up to 35 Sqmm at an average depth of 75 mm

b) above 35 sqmm and upto 95 sqmm at an average depth of 100 mm

c) above 95 sqmm at an average depth of 100 mm

Supplying and installing following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required. (i) 300 mm width X 50 mm depth X 1.6 mm thickness

Laying of following cable as below, on existing Cable Tray and binding with suitable size GI wire including earthing attachment by S&F 2x10 SWG GI (Hot Dip) Wire

a) upto 4Core x 70 sq.mm

Supplying and making end termination with Brass compression gland and aluminium lugs for the following sizes of PVC insulated and PVC sheathed aluminium conductor cable of 1.1 KV Grade as required

a) 4Core x 240 sq.mm

b) 4Core x 120 sq.mm

c) 4Core x 70 sq.mm

d) 4Core x 50 sq.mm

e) 4Core x 35 sq.mm

f) 4Core x 16 sq.mm

Supplying & fixing medium gauge GI Pipe ( ISI-Medium) Protection with necessary fittings and jointing metarials as required as per G S :-

100 mm dia

LT POWER DISTRIBUTION

SITC of LT, Cubicle Type,Floor Mounted, totally enclosed, fully compertmentalized electrical control panel suitable for operation at 415 Volt, 50 Hz, as per size, design & drawing to be approved by EIC.The panel board will be fabricated by CPRI approved panel maker as per detail specification (Uploaded in the Specification Section). [LT PANEL FOR NORMAL SUPPLY FOR RARE & RIGHT BLOCK]

SITC of LT, Cubicle Type,Floor Mounted , totally enclosed, fully compertmentalized electrical control panel suitable for operation at 415 Volt, 50 Hz, as per size, design & drawing to be approved by EIC.The panel board will be fabricated by CPRI approved panel maker as per detail specification (Uploaded in the Specification Section). [LT PANEL FOR NORMAL SUPPLY FOR FRONT & LEFT BLOCK]

SITC of LT, Cubicle Type, Floor Mounted , totally enclosed, fully compertmentalized electrical control panel suitable for operation at 415 Volt, 50 Hz,as per size, design & drawing to be approved by EIC.The panel board will be fabricated by CPRI approved panel maker as per detail specification (Uploaded in the Specification Section). [MAIN LT PANEL FOR DG POWER SUPPLY ]

SITC of LT, Cubicle Type, Floor Mounted , totally enclosed, fully compertmentalized electrical control panel suitable for operation at 415 Volt, 50 Hz,as per size, design & drawing to be approved by EIC.The panel board will be fabricated by CPRI approved panel maker as per detail specification (Uploaded in the Specification Section). [LT PANEL FOR LIFT ]

INSTALLATION OF VTPN DBs

Supplying and fixing double door Vertical TPN MCB Distribution board for MCCB incomer with IP-42/43 protection, on angle iron frame on wall as per GS( Make - Legrand )

8 Way ( Up to 160 A )

Supplying and fixing 415 V Four Pole MCCB of Breaking capacity 25kA/35kA in existing Vertical DBs including necessary connection as per GS [ Make - Legrand ].

Supplying and fixing double door sheet steel (16SWG), powder coated cable end box for TPN DB vertical enclosure with IP-42/43 as per GS

Supplying and fixing 415V, 125A TPN on load front operated Changeover switch ( L&T) with Sheet Steel enclosure on angle iron frame on wall with nuts bolts etc

Supplying and fixing 415V, 63A TPN on load front operated Changeover switch ( L&T) with Sheet Steel enclosure on angle iron frame on wall with nuts bolts etc

EARTHING FOR LT DISTRIBUTION

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 as below: By ISI-Medium GI pipe

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

Extra treatment of soil by using salt & charcoal for plate electrode as to G.S.

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

Connecting the equipments body to earth busbar including S & F 25 mm x 6 mm galvanised (Hot Dip) MS flat on wall/floor with GI saddles as required and connection to equipments incl. drilling holes, with bolts, nuts, washers etc.

Supply , delivery at site on foundation , Testing & commissioning of one no. 250 KVA , 415V, 50Hz, 3Ø silent new DG Set, comprising of Engine, alternator, separate AMF panel with in built By Pass, Base frame, Fuel tank, Battery, CPCB-II approved Engine & Acoustic Enclosure (As per details specifications)

Making 5400mm x 2400mm x 1000mm (250mm below & 750mm above the ground level) PCC foundation (ratio 1:2:4) with 3mm thick smooth cement finish including construction of blue scope roofing shade supported onsteel stuucture consisting of atleast 4(four) vertical supports and adequate horizontal support made up of iron pipes with water prof painting on primer, capable of providing protection against rain for the DG having following dimension 4800mm x 1890mm x 2800mm (hight).

Supply & fixing of exhaust gas piping of suitable dia welded black MS class B pipe incl. all necessary bend supports , clamps, Rain protect Canopy, anti vibration mounting insulation of exhaust system with 50mm thick mineral wool covered with wire mesh and aluminium cladding ( from DG sets to top of the building plus 3mtr or as per CPCB) for 250 KVA DG set as per direction of EIC.

Terms and condition

The Agency must procure the materials from the Manufacturer / OEM or from their authorised sales channel so that the standard warranty / support of the Manufacturer / OEM becomes applicable to the products to be delivered and installed by them.

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.

If any refurbished material is supplied and installed, penal action will be taken as per existing rules

NARAYAN THAPA

BISPA INDIA

ORIENT ENGINEERING WORKS

CHAKRABORTY ENTERPRISE