Tender No.:- RITES/CO/B&A/EE/CUK- Gulbarga/External/E-2/2012.

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1 Amendment No. 1. Sub. : Tender: Supply, Erection, Testing & Commissioning of 11kV/440 V substation, Transformers, DG Sets, HT/ LT panels, HT/LT Cables, Street Lighting etc at University Campus at Khadaganchki Village Aland Taluka Gulbarga District in Karnataka. Tender No.:- RITES/CO/B&A/EE/CUK- Gulbarga/External/E-2/2012. Table No- 1:- Pertaining to Tender Documents S. No. Reference/ Page No./Clause No. As per tender Document Amended and to be read as:- 1 Part-I - Technical Bid/ Page No -03/ S.No.- 2/ Date of Tender Submission & Opening f) Date of Tender Submission: 14:00 hours on g) Date of Tender Opening: 14:30 hours on f) Extended Date of Tender Submission: 14:00 hours on g) Extended Date of Tender Opening: 14:30 hours on No -33/ Item 61/ Capacitor panel - 500KVAR e) 3 sets of 210 amps heavy duty contractors and 5 sets of 100 KVAR heavy duty double die electric capacitor bank. f) 5 Set of 110A capacitor duty Contractor and 50KVAR heavy duty double die electric capacitor bank. g) 6 Sets of 70A capacitor duty Contractor and 25 KVAR heavy duty double die electric capacitor bank. e) 3 sets of 210 amps heavy duty contactors for capacitor application. f) 5 Sets of 110A heavy duty Contactors for capacitor application. g) 6 Sets of 70A heavy duty Contactors for capacitor application. The Panel shall also be made suitable to accommodate the Capacitor Banks The Panel shall also be made suitable to accommodate the heavy duty double die electric Capacitor Banks

2 with all interconnections. The quote should include supply, banking and installation of each Capacitor Banks inside the Panel. with all interconnections. The quote should include supply, banking and installation of each heavy duty double die electric Capacitor Banks inside the Panel. 3 No -36/ Item 63/ Capacitor panel - 200KVAR d) 2 Set of 110A capacitor duty Contractor and 50KVAR heavy duty double die electric capacitor bank e) 6 Set of 70A heavy capacitor Contractor and 25KVAR heavy duty double die electric capacitor bank. Note:- The panel shall be with 500 KVAR capacitor banks and shall have provision to extend to 700 KVAR. The capacitor banks shall be placed inside the panels. 7% detuned reactor for capacitor shall also be provided. d) 2 Sets of 110A heavy duty Contactors for capacitor application. e) 6 Sets of 70A heavy duty Contactors for capacitor application. The Panel shall also be made suitable to accommodate the Capacitor Banks with all interconnections. The quote should include supply, banking and installation of each capacitor banks inside the panels 100KVAR 2Nos. 50 KVAR 4Nos. The Panel shall also be made suitable to accommodate the heavy duty double die electric Capacitor Banks with all interconnections. The quote should include supply, banking and installation of each capacitor banks inside the panels 50 KVAR 2Nos. 25 KVAR 4Nos Note: - The panel shall be with 200 KVAR capacitor banks and shall have provision to extend to 250 KVAR. The capacitor banks shall be placed inside the panels. 7% detuned reactor for capacitor shall also be provided.

3 4 No -38/ Item 64/ There shall be one set of Metering compartment incorporated with the There shall be one set of Metering compartment having Energy Meter and shall also be incorporated with the 5 No -39/ Item 65/ There shall be one set of Metering compartment incorporated with the There shall be one set of Metering compartment having Energy Meter and shall also be incorporated with the 6 No -40/ Item 66/ There shall be one set of Metering compartment incorporated with the There shall be one set of Metering compartment having Energy Meter and shall also be incorporated with the 7 No -41/ Item 67/ There shall be one set of Metering compartment incorporated with the There shall be one set of Metering compartment having Energy Meter and shall also be incorporated with the 8 No -42/ Item 68/ There shall be one set of Metering compartment incorporated with the There shall be one set of Metering compartment having Energy Meter and shall also be incorporated with the 9 No -42/ Item 69/ Pillar Boxes 10 No -43/ Item 70/ Pillar Boxes 11 No -46/ Item No -47/ Item Amp TP Switch fuse Unit with rewritable fuse. 300 Amp TP Switch fuse Unit with rewritable fuse. 400 Amp TP Switch fuse Unit with rewritable fuse. 200 Amp TP Switch fuse Unit with rewritable fuse. Earth pit with 40NB 4.5 m length C.I. pipe electrode With 11m Height swagged 100/80/50 mm dia MS Pole with single arm bracket. 400 Amp TP Switch fuse Unit with HRC fuse. 300 Amp TP Switch fuse Unit with HRC fuse. 400 Amp TP Switch fuse Unit with HRC fuse. 200 Amp TP Switch fuse Unit with HRC fuse. Earth pit with 40NB 4.5 m length G.I. pipe electrode With supply & installation of 11 m Height, 410 SP-55, Steel Poles confirming to IS 2713 with supports, clamp, Nuts & Bolts. Base plate (300X300X10mm). A hole of 14mm dia shall be provided in each pole at a height of 450mm above the planting depth for earthing arrangement. The pole should be buried along with necessary 1:2:4 concrete foundation and inclusive

4 13 No -48/ Item No -48/ Item No -48/ Item No -51/ Item 97 With 11m Height swagged 100/80/50 mm dia MS Pole with single arm bracket. 6m height swagged MS pole with Single arm bracket for fixing of fitting including necessary SMC Junction box with 6A SP MCB and 3 core 2.5 sq.mm flexible cable from SMC Junction box to fitting and painting work. fixed on 1.5 Mts Gate Pole with Single arm bracket for fixing of fitting including necessary SMC Junction box with 6A SP MCB and 3 core 2.5 sq.mm flexible cable from SMC Junction box to fitting and painting work. Supplying, erecting, connecting and commissioning the Advanced Ionosphere, with the and necessary foundation plate, mounting screws / bolts, another associated accessories to complete the system to function. 75KV 36mm dia special of one primer coat, and one finishing coat with single arm bracket of suitable length (as approved by engineer incharge) With supply & installation of 11 m Height, 410 SP-55, Steel Poles confirming to IS 2713 with supports, clamp, Nuts & Bolts. Base plate (300X300X10mm). A hole of 14mm dia shall be provided in each pole at a height of 450mm above the planting depth for earthing arrangement. The pole should be buried along with necessary 1:2:4 concrete foundation and inclusive of one primer coat, and one finishing coat with double arm bracket of suitable length (as approved by engineer incharge) 6 m Height, 63 mm dia B class GI pole with 250 X 250 X 6 mm thick base plate for fixing of fitting including necessary SMC Junction box with 6A SP MCB and 3 core 2.5 sq.mm flexible cable from SMC Junction box to fitting. The pole should be buried along with necessary 1:2:4 concrete foundation. 1.5 Mts., 50 mm Dia, B class GI Pole with 250 X 250 X 6 mm thick base plate Gate pole fixing of fitting including necessary SMC Junction box with 6A SP MCB and 3 core 2.5 sq.mm flexible cable from SMC Junction box to fitting. The pole to be mounted on gate post or other civil structure as required. Supplying, erecting, connecting, Testing and commissioning the Advanced Ionosphere Lightening Arrestor having Protection level-1, 102 Mts. radius coverage area. The Lightening protection system shall be provided with the items/ accessories required to commission the system. The cost shall be inclusive of

5 copper cable ( only meant for these applications) in GI pipe for protection of the cable with necessary accessories as required. Earth Gel in the Earth Electrode with necessary accessories as required by the system. a Lightning Event Counter of digital type in weather proof enclosure with necessary accessories. Testing and commissioning of the System (Lump sum). SITC of items/ accesories. a) Necessary foundation plate, mounting screws / bolts, other associated accessories to complete the system to function. b) 75KV, 36mm dia special copper cable (only meant for these applications) in GI pipe for protection of the cable with necessary accessories as required. Maximum building height is G+3 level. c) Earth Gel in the Earth Electrode with necessary accessories as required by the system. d) a Lightning Event Counter of digital type in weather proof enclosure with necessary accessories. e) Necessary pole for the mounting the arrestor to cover the specific area (102 Mts radius). 17 No -53/ Item 109 Control Cabling Control cabling for both DG sets ( 1500kVA & 500kVA) 18 No -53/ Item 110 Structural supports on walls, slab, in trenches etc for exhaust piping, fuel piping, pumps Structural supports (for both 1500kVA & 500kVA DG sets) on walls, slab, in trenches etc for exhaust piping, fuel piping, pumps. Unit - LS Unit - Kgs Qty - 1 Qty Technical Bid/ Page No / Approved Make a) Vacuum Circuit Breaker Areva/Schneider/Crompto n/abb/siemens and their system house channel partner a) Vacuum Circuit Breaker Areva/Schneider/Crompton/ABB/Siemens / Kirloskar and their system houses channel partners. b) LT Panel : Advance/Adlec/Risha Control/Neptune/Tricolite b) LT Panel : Advance (Noida)/Adlec /Risha Control/Neptune/Tricolite c) Street Light Pole c)street Light Pole

6 Bajaj, BPP, Philips d) XLPE HT/LT Cable Torrent/Nicco/KEI/Rallison /Havells/Gemscab e) Bus Duct No make. However pole should confirm to the technical specifications/items as per BOQ. d)xlpe HT/LT Cable Torrent/Nicco/KEI/Rallison/Havells /Gemscab/Cabcom/Gloster e) Bus Duct Schneider, C&S, L&T, Godrej Table No- 2:- Pertaining to General Modifications S. No. Reference/ Page No./Clause No. Description Modifications:- 1 RMU/HT Panels 2 LT Panels BOQ No. item a) Protection Class b) UPS Back up. c) Foundation d) Accessories & Type of relay a) Foundation b) Details of Relay c) Accessories & Type of relay a) All 11 KV VCB Panels / RMU are INDOOR TYPE. The protection class shall be 4X. b) No need of UPS Back up. Power pack shall be in contractor s scope. c) All the HT panels are placed indoor and placed on the trench. Hence necessary angles and other supports shall be considered for the erecting the same above the trench. d) All accessories and type shall be as per manufacturer s standard. a) All the LT panels are placed indoor and placed on the trench. Hence necessary angles shall be considered for the erecting the same above the trench. b) Upto 250Amps Thermo magnetic and above 250 Amps Microprocessor based. c) All accessories and type shall be as per manufacturer s standard. d) All MCCB s shall be with Front drive

7 3 Distribution Board d) Front drive kit e) All TPN MCCB f) Degree of protection Thickness, IP Protection etc. kit. e) All TPN MCCB shall be provided with TP + Solid Neutral bus bar link for MCCB s. f) Degree of protection shall be IP-42 for all LT panels except for pillar boxes (item no. 69 & 70). For Pillar Boxes (item no. 69 & 70) degree of Protection shall be IP-54. It shall be as per CPWD specifications. 4 BOQ item No. 12,13,14,15,16,17,18 and 19 Laying of Cables Follow CPWD specification. 5 BOQ No. 24 item Excavation of Trench in Hard Soil Follow CPWD specification. 6 HT/LT cable Specification Specification of HT/LT cables shall be as per CPWD or relevant IS. 7 LT Cable Nos. of compression glands. Nos. of compression glands shall be as per CPWD Specification. 8 Conduit Thickness Thickness of conduit shall be as per CPWD Specification. 9 Pole Specification Specification of street light pole shall be as per relevant IS. 10 DG SET- 1500kVA & 500kVA a) Size, thickness and dia of exhaust pipe. b) Whether it is self supporting structure or supported along building wall. a) The approx. height of exhaust pipe is mentioned in the BOQ. Based on the same, the size & thickness of the exhaust pipe to be arrived by the vendor as per manufacturer s standard and also meeting the statutory requirement. b) Supported along Substation wall for 1500 KVA DG Set. 500 KVA DG set is placed outdoor. The

8 exhaust pipe will be left as it is from the silencer. 11 Approved make c) Mineral wool density Clarification regarding brand of material specified in Tender BOQ, Specification & list of approved make. c) Since the 1500 KVA DG Set is placed inside the room, the room should be acoustically treated by the bidder. The sound level should be as per CPWD / CPCB norms. Based on the same, the thickness of mineral wool should be decided by the vendor. Brand of material shall be used as mentioned in the list of approved makes in Tender documents. 12 Lightening protection System Specification Enclosed with this amendment in pages 02 Nos.

9 Technical specifications for Advanced Lightning Protection 1. General The Advanced Lightning Protection system shall include components as follow: airtermination(s), mechanical support(s), down-conductor(s), performance recording equipment(s) (optional) and a low impedance grounding system. Installation procedures of the entire lightning protection system shall be governed by the IS: 2309, the IEC or the NFC standard. The manufacturer of the air-termination shall provide designs and instructions for the installation as per the former standards. Prior to the installation of the system, a risk assessment survey shall be conducted to determine: the level of protection required for the structure (according to standards) and the adapted solution and design to be chosen. The Advanced lightning protection system shall be mounted adequately rated for wind shear loading. Guying kits shall be provided as appropriate to local environmental conditions, or based on mast arrangement selected. Each air terminal must be connected to the earth termination system by at least onedown-conductor. Two down-conductors are required when a) The horizontal projection of the conductor is larger than its vertical projection, b) When the structure is higher than 28m. 2. Air termination Manufacturing process of the air-terminal shall be ISO: 9001 certified The air terminal shall have been tested in a High-Voltage laboratory with a standardized waveform: 8/20µs or 10/350µs. The protection area of the air-terminal shall be determined using an acceptable method given in the standards IS: 2309, IEC and NFC (Rolling Sphere Method) The air terminal shall be made of non-corrosive materials. It shall be equipped with a central rod made of copper, copper alloy or stainless steel. The rod and the air-terminal tip shall have a conductive cross-sectional area larger than 120mm² The air-terminal shall guarantee a full electrical continuity between the tip and the down-conductor The air-terminal shall be able to support a 100kA current or more No external power supply shall be required The air-terminal shall be active only during a storm The air-terminal shall ensure the emission of a streamer (ionisation of the air around the tip) when a lightning strike is occurring in the protection area claimed The intensity and potential of the streamer shall be controlled by the air-terminal to ensure sufficient values (above 10A and 2000V) so it can develop properly and intercept the lightning The air terminal shall emit a streamer only when a lightning strike is occurring (provoking lightning strikes can induce surges!!!) Performances of the air-terminal shall not be affected by extreme climatic conditions 3. Air termination support 3.1 The air terminal support shall consist of a minimal 2m Galvanized steel (GI) or steel elevation pole with a minimal diameter of 30mm. The air terminal shall be screwed on the top of this elevation pole. 3.2 The air termination support shall be fixed securely on the structure to enable the air termination and mast system to withstand maximum locally recorded wind velocities. Guy wires might be necessary to secure the system properly.

10 4. Down-conductor 4.1 Down-conductors consist of strips, braided cables or round sections. 4.2 Materials to be used: Bare or tin-plated copper (recommended), stainless steel or aluminium 4.3 Minimal cross-sectional area must be 50mm² 4.4 Down conductors shall be routed to the earth termination as direct as possible. Sharp bends and upward sections (40cm max with a 45 slope max are acceptable) are to be avoided. 4.5 Down conductors shall be attached on the basis of three fixing per metre 4.6 Down conductors shall eventually be protected against the risk of impact by installing sleeves up to height of 2m above ground level 4.7 The down conductors shall be directly connected to the base of the air termination system and to the earth termination system by the mean of a test clamp. 5. Earth Termination 5.1 One earth termination system is to be provided for each down-conductor 5.2 Resistance value should be 10 ohms or less (5 ohms or less when the structure contents sensitive materials) 5.3 Material to be used: Bare or tin-plated copper (recommended), Copper-plated steel, stainless steel or galvanised steel 5.4 Bonding of the earth termination to the electrical earth of the building, to metallic parts of the building, to the structural reinforcing steel of the building and to arriving services is strongly recommended. 6. Performance recording equipment (optional) Each protection system shall be supplied with a lightning flash counter The lightning flash counter shall register a strike for every discharge where the peak current exceeds 1000A The lightning flash counter shall have been tested and certified in a high-voltage laboratory with a 8/20µs waveform. The lightning flash counter shall be installed directly on the down-conductor and as per the manufacturer instructions 7. Maintenance As per the standards (IS: 2309, IEC and NFC ), the lightning protection system shall be inspected at least every 2 years. A visual inspection shall be performed to make sure that: a) No extension or modification of the protected structure calls for the installation of additional lightning protective measures, b) the electrical continuity of visible conductors is correct, c) all components fasteners and mechanical protectors are in good condition, d) no parts have been weakened by corrosion Measure of the earth termination resistance shall be realized to ensure it is still below 10 ohms (or 5 ohms) Air termination system shall be checked to ensure a) It is still properly connected to the down conductor(s), b) The tip has not melt, c) The system is still in operating conditions (tester might be used), d) It is still properly installed on the support and it can withstand high wind velocities (relatively to the local conditions).

BILL OF QUANTITIES - PROJECT ELECTRICAL WORK OF PH-I FOR ASSAM RIFLES, DWARKA, NEW DELHI

Page 1 BILL OF QUANTITIES - PROJECT ELECTRICAL WORK OF PH-I FOR ASSAM RIFLES, DWARKA, NEW DELHI-110075 I. INSTALLATION OF SUB-STATION EQUIPMENT The rates shall include the following : 1. Assembling loose