Extension of 33 kV Bay at MRSS for housing outgoing feeder for new hostel buildings in NIT Rourkela

Gantry structures made of Lattice structures of equal angles sections, flat as per the existing structure and approved drawings. State practices are to be adopted in the design. All structural steel members and bolts shall be galvanized after fabrication as per IS:4759 and zinc coating shall not be less than 610gm/sq. meter for all structural steel members. All L45x45x5 will have 23 mm back mark. All L50x50x6 will have 28mm back mark. 3.5mm spring washers are to be used under each nut, structural steel shall conform to IS 2026. All weld shall be 6mm filled weld unless specified otherwise. All nuts and bolts shall be of property class 5.6 of IS 1367. Plain washers shall be as per IS 2016 & spring washers shall be IS: 3063 as per technical specifications, scope of works and approved drawings as per site condition. THREE nos of Lightning Masts of height of 7700 mm (without lightning spikes)to be made alongwith all other structures for construction of two nos of bay in line with the existing structure.

36kV, 1250A, 25kA for 3 seconds, 3-ph, Outdoor type Vacuum Circuit Breaker along with 36KV, 3 CORE CT WITH 1 CORE OF 200/1A WITH CL-5P10,1 CORE WITH 200/1A CL-0.5, 10VA & 1 CORE WITH 200/1A CL-0.5, 10VA, 1 PHASE FOR BAY 3 Nos outdoor type Current Transformers along with junction box (1 no junction box for 3 no of 1- phase CTs), Jumpers, earthing, supporting structures, bi-metallic clamps, permanent maintenance platform, marshalling box etc required as per technical specifications, scope of works and approved drawings Make: ABB

SITC of 33kV, Indoor, Control Relay Panel made up of 2 mm M.S COVER FABRICATION WITH POWDER COATING PAINT along with Schneider make numerical non directional over current & earth fault relay type P1F1 (P111L) (Type: P1F1L1N3N92N0NN11N), ALSTOM/GE make tripping relay type VAJ (Master trip relay),10-125V DC,3NO 1NC HR (Type No: VAJH13YF0751ABA), ALSTOM/GE make trip circuit supervision relay type VAX31,Vx: 110-125/220-250V DC,2NO 2CO SR (Type No VAX31ZG0750BA), DISCONNECTING TTB, Digital MFM meter (96X96 mm),CTR-300/5, Cl-1, Aux supply-230V AC (Schneider METSEEM6400NGRSCL1), RED, YELLOW, BLUE, GREEN, WHITE Indicating lamps, 100 V AC TNC SWITCH, VCB CLOSE-OPEN INDICATOR, 6WINDOW ANNUNCIATOR, 3PH AMP METER CL-1 and VOLT METER CL-1 PLC, HMI Display, Control relays, 33 kV feeder VCB with Static Tri-Vector Energy Meter, etc as per approved drawings, specifications and scope of works

Supply and erection of 33KV, 800A, 25kA for 3 seconds, 3-ph double break center rotating type (DBCR), Gang Operated, isolator along with Support Insulators, Operating Mechanism, Base Channel down Pipe and all required accessories complete as per technical specifications, scope of works and approved drawings

Supply and erection of 33KV, 800A, 25kA for 3 seconds, 3-ph double break center rotating type (DBCR) with earth switch, Gang Operated, isolator along with Support Insulators, Operating Mechanism, Base Channel down Pipe and all required accessories complete as per technical specifications, scope of works and approved drawings

Supply and erection of single piece nonlinear resistor type lightning arrestor for 3 wire, 33 kV overhead lines with rated voltage 30 kV (rms) with a nominal discharge current rating of 10 kA (station class) and complete with galvanised clamping arrangement, jumpering from bus bar, hardware, etc as required as per technical specifications, approved drawings and scope of the works.

ACDB with Manual Changeover Panel: Incomer-1: 250A TP 50KA MCCB with O/L & S/C Thermal Magnetic Release, MCCB AUX. CONTACTs, Rotary Handle & necessary spreader links/Aluminium BusBar - 01 set (Make: SIEMENS VL/VA series or Legrand), Digital MFM meter (96X96 mm),CTR- 400/5A, 5VA Class: 1.0, Metering Current Transformer, Aux supply-230V AC with R-Y-B and ON-OFF indicating lamp along with required SP MCB control Incomer-2: 200A TP 50KA MCCB with O/L & S/C Thermal Magnetic Release, MCCB AUX. CONTACTs, Rotary Handle & necessary spreader links/Aluminium BusBar - 01 set (Make: SIEMENS VL/VA series or Legrand), Digital MFM meter (96X96 mm),CTR- 250/5A, 5VA Class: 1.0, Metering Current Transformer, Aux supply-230V AC with R-Y-B and ON-OFF indicating lamp along with required SP MCB control 250A ONLOAD CHANGEOVER: 250A ONLOAD CHANGEOVER SWITCH - 01 set Make: ABB/SOCOMEC Digital MFM meter (96X96 mm),CTR- 400/5A, 5VA Class: 1.0, Metering Current Transformer, Aux supply-230V AC with R-Y-B indicating lamp along with required SP MCB control OUTGOING: 100A 4P 36KA MCCB (Make: SIEMENS VL/VA series or Legrand) with O/L & S/C Thermal Magnetic Release, Rotary Handle, Aux supply-230V AC with R-Y-B indicating lamp, ON/OFF lamp along with required SP MCB control, - 01 set 63A TP 10 kA MCB: 06 sets, 40A DP 10kA MCB : 06 sets

110 Volts (or voltage as per state practices) Direct Curent Distribution Board (DCDB) Indoor floor mounted comprising of 2P/100A DC Switch Fuse Unit as incommer and 2P/40A switch fuse units for each individual outgoing circuit of indoor control panels, indoor/outdoor VCB panels, control room emergency DC lighting including 20% as spare as per technical specifications, approved drawings and scope of works. .

AAAC/ACSR Conductor for Bus-Bars & Jumpers/Droppers/Terminations including hardware fittings, hardware, T-clamps etc as per technical specifications and site condition, approved drawings and scope of works (This includes replacement of all existing ACSR/AAAC . 30/3.00 + 7/3.00 mm (200 mm² Al. Area) - Panther