Supply, Installation, Testing and Commissioning of Electrical System to receive and Distribute power from HT line at IISER TIRUPATI Main Campus, Jangalapalli Village, Yerpadu Mandal, Tirupati

Amount

SUB HEAD 1: (HT SUB STATION) Indoor Type - 33KV VCB

TRANSFORMER Supply, installation, testing and commissioning of 630 KVA, 33kV/0.433 kV, 3 Phase, 4 wire, 50 Hz., ON- AN Transformer, Dyn11 Vector group, outdoor type, Off load tap changer on HV Side range -15%, 0, +5% in the steps of 1.25% per step, type transformer. Cable box connection including cable adapter box at primary and secondary end (LT side) shall be connected through cable, complete with all accessories including first filling of oil, double float buchholz relay protection, high winding emperature, oil temperture sensors and gauges etc. confirming to IS-1080 (Part -1 & Part -2 ) ammended upto date, interconnection of control cables and accessories etc complete. Note-Transformer will have metering CT & PT of class 0.5 or better. including interconnection of control cables as per detailed technical specifications and as required. Transformer losses must be as per ECBC norms ammended up to date.

HT CABLE Supply of following sizes of 33 kV grade multicore aluminium conductor XLPE armoured and overall HR PVC seathed power cable as per IS : 7098. 3 Core, 120 sq mm

Laying of one number XLPE power cable of 33 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. upto 120 Sq mm

Laying of one number XLPE power cable of 33 KV grade of following size in the existing RCC/ HUME/ METAL pipe as required. upto 120 Sq mm

Laying of one number XLPE power cable of 33 KV grade of following size in the existing masonry open duct/cable tray as required. upto 120 Sq mm

Supplying and making end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size 3 Core, XLPE aluminium conductor cable of 33kV grade as required. 120 sqmm 3 core (Heat Shrunk Type) Indoor Type

120 sqmm 3 core (Heat Shrunk Type) Outdoor Type

Providing, laying and fixing following dia RCC pipe NP2 class (light duty) in ground complete with RCC collars, jointing with cement mortar 1:2 (1 cement : 2 fine sand) including trenching (75 cm deep) and refilling etc as required. 300 mm dia

Double Pole Structure Design, supply & Erection , fabrication and erection of 33 KV D.P. Structure with RS Joist 200X200mm x 11Mt Poles including cost of MS materials as per Technical specification and conforming to APSPDCL requirement and with the following Equipment's and all necessary accessories. 33KV triple pole, Double brake AB switch of 600 Amps capacity, Solid core, 100% hot dip, horizontal gang operated switch, 33KV HG fuse set as APSPDCL specification, 30KV, 10 KA, station type lightning arrestor as per standard, Jumpers.33KV Jumpering with “O” SWG level HDB Copper wire to connect 33 KV AB switch, 33 KV lighting arrestor, 33 KV HG fuse set etc.,. and including stay sets, 3 Mtr Length CI earth pipes and eartning connections (50X6 GI & 25X6 copper) with necessary HT cable Joint Kits and any other requirement of site conditions.

CABLE ROUTE MARKER Supplying and fixing cable route marker with 10 cm x 10 cm x 5 mm thick G.I. plate with inscription there on, bolted /welded to 35 mm x 35 mm x 6 mm angle iron, 60 cm long and fixing the same in ground as required.

SAFETY EQUIPMENT Providing and fixing HT (33 kV) danger notice plate of 250 x 2000 mm made of mild steel, atleast 2 mm thick and vitreous enameled white on both sides and with inscription in signal red colour on front side as required.

Providing and fixing MV danger notice plate of 200 x 150 mm made of mild steel, atleast 2 mm thick and vitreous enammelled white on both sides and with inscription in signal red colour on front s

GI buckets, 4 no of 5 Litres Capacity duly painted white inside and red oxide paint out side and with 'FIRE' witten in white paint & Filled with Dry sand and mounted on MS angel iron bracket of Size 50 x 50 x 6 mm thick and 1200 mm long including grounting in walll / floor etc as required .

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. 450 mm width x 62.5 mm depth x 2.0 mm thickness

600 mm width x 62.5 mm depth x 2.0 mm thickness

Construction of chProviding and fixing fencing to a height of 2.1 metres with chain link mesh/welded mesh (made of 8 SWG GI wire with 50 mm x 50 mm mesh size) welded to angle iron frame of 50 mm x 50 mm x 5 mm to form a "T" section (The angle iron width not more than 1.5 metre and assembled at site to form the required fencing. All the vertical members of frame shall be extended by 90 cm for errection in ground) including erection of the angle iron frame in 1:2:4 cement concrete of size 0.20 m (L) x 0.20 m (B) x 0.90 m below ground & 0.2 m above ground including excavation, painting with aluminium paint etc., as required (to be measured on linear basis).amber for 100mm sluices valve

Providing and fixing Pre-fabricated gate for transformer yard consisting of two leaves of size 2.1 metre (height) x 1.25 metre (width) (total width 2.5 metre) fabricated out of angle iron frame work with 50 mm x 50 mm x 5 mm angle iron equally spaced across the height of the gate, including welding wire mesh made of 8 SWG GI wire having 50 mm x 50 mm nominal mesh size) for each leaf welded to the two frames on both sides to a channel iron support made of each 3 metre long MS channel of of designation ISMC 100 (9.2 Kg/mtr.) using a suitable suspension arrangement heavy duty hinges providing locking arrangement erection of the vertical support in 1: 3: 6 cement concrete (1 cement : 3 coarse sand : 6 graded stone aggregate 40mm nominal size) of size 0.2m (L) x 0.2m (B) x 0.5m below ground & 0.2m above ground in such way as to ensure proper alignment etc., as required.

SUB HEAD II : (MAIN LT PANEL) Supply, installation, testing and commissioning of LT Panel, Type Tested Assembly (TTA), panel cubicle type, totally enclosed, free standing type, dust ,damp and vermin proof panel, powder coated, made up of CRCA sheet, complete with aluminum busbars, danger notice plate, interconnections with suitable capacity aluminum leads/solid aluminum strips/rods, necessary interlocking, and having incoming and outgoing switchgears as mentioned below. Complete as per technical specifications and as required. Note : i). All ACBs shall have spare contacts ii).All relays to operate at 240Volts, Single phase, 50Hz., AC supply through UPS. UPS of suitable Rating is also in the scope of Supply iii).Intellignet Panel Meter: Flush mounting, 96 x 96 mm size class 1 accuracy and LCD display. Panel meter should be suitable for true RMS reading. Meter should measure line and phase voltage, current of all 3 phasees and neutral, HZ, PF, KW, KWH, KVAR, KVARH, KVA, KVAH, Voltage and current including one set of CT. Meter should be EMI/ EMC complaint. All ACBs shall have 50 KA for 1 second. All ACBs should have Icw =Ics=Icu=100% All MCCBs shall have Ics=Icu=100% Separate fault indication for O/L, S/C, & E/F to be provided on Panel Door for all Microprocessor Based outgoing MCCB INCOMER: i) 2 No. ACB each having following: 1250 A, 415 V, Motorised, Fully Drawout type (EDO), Four Pole, Air Circuit Breaker with microprocessor based overload, short circuit, Instantaneous & Earth Fault trip including under voltage release and lockable trip push button. ACB should have Icw=Ics=Icu=50 KA for 1 sec. Indicating lamps (LED Type) with 6A protection MCBs to indicate OPEN, CLOSE, TRIP for ACB. Push button to Close the ACB. R, Y & B Phase indicating lamps (LED type) with 6A control SP MCBs. Intellgent Panel Meter as mentioned above with one set of CTs One set of dual core dual ratio CT of 3200/1600/5/5A for capacitor panel. BUSBARS: 2500 Amps TPN busbars of aluminium with temperture rise of 40 ° C over and above Ambient temperture of 45 Degree Celsius. BUS COUPLER: i) 1 No. ACB Panels each having following: 1250A, 415 V, Motorised, Fully Drawout type (EDO), Four Pole, Air Circuit Breaker with microprocessor based overload, short circuit, Instantaneous & Earth Fault trip including and lockable trip push button. The ACB should have Icw=Ics=Icu=50 KA for 1 sec. Indicating lamps (LED Type) with 6A protection MCBs to indicate OPEN, CLOSE, TRIP for ACB. Push button to CLOSE the ACB. 1 Set of Ammeter with ASS and CTs. OUTGOING: 2Nos. MCCB feeder as per following details/ specifications: 630 Amp, 415 volts, 50 KA, Four Pole, Microprocessor release based MCCB with variable current settings and having O/L, S/C & inbuilt E/F protection. Extended rotary operating mechanism with door interlock, defeat feature and padlock facility. MCCB should be with spreader link and phase barriers. Indicating lamps (LED Type) with 6A protection MCBs to indicate ON, OFF, TRIP. Intellgent Panel Meter as mentioned above. 3 Nos. MCCB feeder as per following details/ specifications: 250 Amp, 415 volts, 50 KA, Four Pole, Microprocessor release based MCCB with variable current settings and having O/L, S/C & inbuilt E/F protection. Extended rotary operating mechanism with door interlock, defeat feature and padlock facility. MCCB should be with spreader link and phase barriers. Indicating lamps (LED Type) with 6A protection MCBs to indicate ON, OFF, TRIP. Intellgent Panel Meter as mentioned above. 3 Nos. MCCB feeder as per following details/ specifications: 125 Amp, 415 volts, 50 KA, Four Pole, Thermal magnetic based MCCB with variable current settings and having O/L, S/C & inbuilt E/F protection. Extended rotary operating mechanism with door interlock, defeat feature and padlock facility. MCCB should be with spreader link and phase barriers. Indicating lamps (LED Type) with 6A protection MCBs to indicate ON, OFF, TRIP. Intellgent Panel Meter as mentioned above.

Feeder Pillar Panel SUPPLY & INSTALLATION OF OUTDOOR FABRICATED PANEL STAND MOUNTED. WITH, 125A 4P MCCB -1 NOS- In-Coming , 63A 4P MCB-1NO.-Out-Going, 32A 4P MCB-4NO.-Out-Going, 25A SP MCB-4 NO.- Out-Going including all accessories as required.

SUB HEAD III : (LT CABLES) Supplying of XLPE insulated and PVC sheathed armoured aluminium power cable of 1.1 kV grade confirming to IS 7098(Part 1) ammended upto date of following sizes cable complete as required 4 core 10 Sqmm.

4 core 16 Sqmm.

3.5 Core 50 Sqmm.

3.5 Core 120 Sqmm.

3.5 Core 240 Sqmm.

Laying of one number XLPE insulated and PVC sheathed power cable 1.1kV grade direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc. as required Up to 35 sq.mm

Above 35 Sq mm and upto 95 Sq mm

Above 95 Sq mm and up to 185 Sq mm

Above 185 Sq mm and up to 400 Sq mm

Laying of one number XLPE insulated and PVC sheathed power cable 1.1kV grade direct in the existing RCC/ Hume/Stoneware/Metal pipe as required Up to 35 sq.mm

Above 35 Sq mm and upto 95 Sq mm

Above 95 Sq mm and up to 185 Sq mm

Above 185 Sq mm and up to 400 Sq mm

Laying of one number additional PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size direct in ground in the same trench in one tier horizontal formation including excavation, sand cushioning, protective covering and refilling the trench etc as required. Up to 35 sq.mm

Above 35 Sq mm and upto 95 Sq mm

Above 95 Sq mm and up to 185 Sq mm

Above 185 Sq mm and up to 400 Sq mm

Supplying and making end termination with suitable size Aluminium lugs including double compression glands of following sizes of 1.1 kV grade multicore aluminium conductor XLPE insulated and PVC sheathed 4 Core 10 Sqmm

4 Core 16 Sqmm

3.5 Core 50 Sqmm.

3.5 Core 120 Sqmm.

3.5 Core 240 Sqmm.

SUB HEAD IV : (EARTHPITS) Supply & fixings of standard Copper Plate Earth station, with 600X600X3mm thick copper plate & 20mm dia 2100mm long GI pipe including construction of brick pedestal, providing meshed funnel, CI cover and other civil Engineering works, spreading a homogeneous mixture of salt charcoal around the plate etc, completely as per IS 3043, 1987 or latest revision.

Supply & fixing of standard C.I. Pipe Earth station, with 100mm dia. 2500mm long C.I. pipe including construction of brick pedestal, providing meshed funnel, CI cover and other civil Engineering works, spreading a homogeneous mixture of salt charcoal around the pipe etc, completely as per IS 3043, 1987 or latest revision. (Tx, DG sets, all Panels Body earthing & Fenceing)

Supplying and laying 25mmX5mm GI strip at 0.5m below ground level as strip earth electrode, including soldering etc. as required.

Supplying and laying 50mmX6mm GI strip at 0.5m below ground level as strip earth electrode, including soldering etc. as required.

Supplying and laying 25mmX5mm Copper strip at 0.5m below ground level as strip earth electrode, including soldering etc. as required.

Supplying and laying 50mmX6mm Copper strip at 0.5m below ground level as strip earth electrode, including soldering etc. as required.

Providing & fixing 6 SWG G.I. wire on surface or in ground for loop earthing for street poles

SUB HEAD V : (STREET LIGHTS) Supply & fixing of of 6.0Mtr height Single arm GI Street light Pole. The pole shall be with base plate of 300mmX300mm 12mm thick with 1no 70W LED Light Fixture (IP 66) along with Junction box with 1no 6A SPMCB, Connectors and wiring upto terminal box from fitting with 1.1 KV grade PVC insulated multi strandred 3 x 2.5 Sq.mm multi strand copper conductor cable, and 2nos of 40mm Dia Class B GI Pipes for cable entry. The pole shall be erected on existing PCC/Grouting Base plate and Fixing bolts, nuts etc shall be included and complete as required.

Supply & fixing of of 3.5 Mtr height Single arm GI Street light Pole. The pole shall be with base plate of 300mmX300mm 12mm thick with 1no 35 W LED Light Fixture (IP 66) along with Junction box with 1no 6A SPMCB, Connectors and wiring upto terminal box from fitting with 1.1 KV grade PVC insulated multi strandred 3 x 2.5 Sq.mm multi strand copper conductor cable, and 2nos of 40mm Dia Class B GI Pipes for cable entry. The pole shall be erected on existing PCC/Grouting Base plate and Fixing bolts, nuts etc shall be included and complete as required.

SUB HEAD VI : (Misc. Civil Works) Providing brick work (in width 225 mm or more) with F.P.S. bricks of class designation 7.5 in cement mortar 1:4 (1 cement :4 coarse sand) at all levels.

Providing 15mm thick cement plaster of mix 1:4 (1 cement : 4 fine sand) at all levels.

Providing and laying in position cement concrete 1:3:6 (1cement : 2 coarse sand : 6 graded stone aggregate 20 mm nominal size) in foundation of pump, DG set etc including form work etc as required.

S.P ELECTRICAL INDUSTRIES

CHARAN ELECTRICALS