Table-1: Clarifications and modification in tender s based on Pre-bid meeting discussion Sr. Ref Page. 1 4 Clause Site Preparation and Partitions walls 2 11 SLD 3 18 Batteries 4 18 Batteries 5 32 to 34 6 33 CCTV and DVR CCTV Color Monitor Features: 7 38 FM200 8 9 13 Fire Suppression Lighting and Comfort AC: Clarification Sought Tier 3 Standard as per TIA 942 guidelines specifies 1 hour fire rating for partitions. Kindly advice whether it is acceptable It is recommended to have 2 nos 10 KVA UPS system for redundancy in supply to BMS load Please clarify about Self extinguishing material for battery enclosure. Whether it should have fire resistant or Fire suppression property 12 V / 100 AH shall not support battery backup time of 30 minutes for 60 KVA UPS system. Kindly confirm whether back up time considering both banks should be 30 minutes OR each UPS should have battery backup of 30 minutes Whether Fixed dome camera or PTZ camera are required Picture Tube: 21 inch (53 cm) flat square tube) Layout provided in RFP is indicating 3 cylinders as against 2 nos mentioned in s. Kindly advice. FM200 / NOVEC1230 NIO would provide two raw electrical power distribution panels (Labeled as for Lighting and for Power ) at the first floor entrance area wall Customer's Response and approved change in tender All vendors are requested to quote for 2 hours fire rated materials only as per the tender requirement. The changeover facility could be provided from the second unit of the 60KVA UPS system which is also supporting the IT loads of other floors of the ITG building. Standard VRLA, SMF batteries is acceptable instead of batteries with self-extinguishing material. The tender is changed for this item with one year Warranty period. Each UPS system should have independent backup battery banks. Each UPS should have independent battery banks to support 30 minutes full load capacity as per the tender. Instead of number of batteries the is changed as follows: Battery banks for each 60 KVA UPS should have 60000 VAH capacity and 10 KVA UPS should be with 12000 VAH capacities. The CCTV camera type should be "IP based PTZ High Speed Dome Camera with built in motion detector" and also the DVR should be with IP connectivity for remote monitoring. Other s remain as per the tender. One camera should be installed in UPS room in the Ground floor. 21 inch LCD Monitor is acceptable Ref In Page 37: Design of the system shall be in accordance with NFPA 2001. Design calculation for the suppression system shall be done on UL listed, FM approved software. ASTM 106, Grade-B, Schedule-40 seamless pipes shall be used for this All vendors are requested to quote for NOVEC1230 gas based system only. Vendor would provide two raw electrical power distribution panels (Labeled as for Lighting and for Power ) at the first floor entrance area wall with required number of MCBs. 1
with required number of MCBs. The details for the DB & MCBs are as follows. 1- Providing & fixing of 4 way ETPN Distribution board with acrylic double door, IP 43 protection similar to Legrand Cat.. 6077 25 complete in surface manner. 2 s (1 For Lighting & 1 For Power A/C loads) 10 11 29 12 43 13 29 14 45 2- Providing & fixing of 6 to 32 amps. SP MCBs similar to Legrand Cat.. 603231 to 603237 in the existing Distribution Board.(Single Pole )- Required s as specified in SLD 3- Providing & fixing of 63 amps. FP MCB similar to Legrand Cat.. 6033 25 as incomer in the Power Distribution Board.- 1 4. Providing & fixing of 32 amps. FP RCBO similar to Legrand Cat.. 603398 in the Lighting Distribution Board. 57 Proposed Precision Air condition Units Emerson / APC / Uniflair 59 Manufacture TVSS Emerson / L&T / MGE / Schneider 58 rs / Raised Access flooring United Insulations / Microtac / Unitile / Suppliers Uniflair Perforation up to 83% on front Perforation more than 78% on front Server doors shall be provided for doors shall be provided for this Racks this Components of water leak detection system Smart Card based Access Control BMS The Water leak detection system shall comprise of Tape Sensors, Water Leak detection modules, Condensation detectors, I/O modules and sounders all connected to a Control Panel. Card types BMS system to integrate three UPS, three PAC systems, addressable Fire detection system, Fire suppression Gas release panel, VESDA, Access control system, CCTV surveillance system and Water Leakage Detector system as specified in this tender. Also should have facility to add additional temperature monitoring devices and options to integrate other devices like DG, etc The Water leak detection system shall comprise of Sensor cables, Water Leak detection modules, Condensation detectors, I/O modules and sounders all connected to a Control Panel. All cards should be Smart Card type only. BMS system to integrate three UPS, three PAC systems, addressable Fire detection system, Fire suppression Gas release panel, VESDA, Access control system and Water Leakage Detector system as specified in this tender. Also should have facility to add additional temperature monitoring devices and options to integrate other devices like DG, etc 2
15 32 CCTV: Requirement 16 9 Earthing: 17 12 Cable schedule: Cable Schedule Two Monitoring cameras would be installed in proper location to cover the entire server room. The scope of work involves supply, installation, commissioning and testing of the Closed Circuit Television system integrated with proposed BMS of the Data Center. Separate earthing should be installed to earth all IT equipment, server racks, UPS etc by making dedicated earth pits. Ref the table below Three Monitoring cameras would be installed in proper location to cover the entire server room. The scope of work involves supply, installation, commissioning. and testing of the Closed Circuit Television system. Fourth unit should be installed in UPS room. A separate 1c x 50 sqmm cu flexible cable (Green Colour) as mentioned in the tender is to be used for this Ref the table below for final tender Main Power cable: Main Cables 1C x 50 Sq.mm Cu flexible FRLS 4C x 10 Sq mm + 1C x 10 Sq.mm for earthing. All Cu. flexible FRLS 3C x 6 Sq mm Cu. flexible FRLS 4C x 10 Sq mm + 1C x 10 Sq.mm for earthing. All Cu. flexible FRLS 3C x 6 Sq.mm Cu flexible FRLS Sr From To of Runs 1 NIO Raw Power Panel UPS-1, 60 kva 4 2 NIO Raw Power Panel UPS-2, 60 kva 4 3 NIO Raw Power Panel PAC Main Panel 5 4 UPS-1, 60 kva UPS-1 PDU 5 5 UPS-2, 60 kva UPS-2 PDU 5 1 NIO Raw Power Panel UPS-3, 10 kva 1 2 UPS-3, 10 kva BMS/ Emergency DB 1 3 PAC Main Panel PAC-1 1 4 PAC Main Panel PAC-2 1 5 PAC Main Panel PAC-3 1 1 UPS-1 PDU Each Racks 12 2 UPS-2 PDU Each Racks 12 1 UPS-1 PDU Storage Rack 2 2 UPS-2 PDU Storage Rack 2 1 Vendor Raw Power Panel Comfort AC locations 5 2 Vendor Raw Lighting Panel ON/OFF Lighting Panel 4 3
Table 2: Clarifications only Tender s not changed for the following Sr. Ref Page. 1 2 Clause Scope of the work Clarification Sought Please clarify exact scope of shifting & rerouting of existing optical & network cables Customer's Response and approved change in tender After completing the Data center work, the existing operational fiber and network cables should be rerouted from the ground floor to the first floor network rack locations as specified in the Page 6 of technical titled as "Server Room Structured Cabling" (Also Ref: Point 3 of website Tender summary description) 2 5 Thermal insulation 3 11 SLD 4 11 SLD 5 32 CCTV 6 37 FM200 7 6 Server room structured cabling It is recommended to have 13 mm nitrile rubber insulation on true ceiling of server room. Kindly advice whether it is to be considered or not We recommended to have a consolidated Data center LT Panel for providing power to UPS, PAC comfort AC, Ligthing etc with dual bus having 2 incomers & buscoupler with auto changeover facility Bypass cable & Bypass feeder for UPS system not considered 4 nos camera may not be sufficient to cover entire area of Data center. Please advice Kindly confirm whether FM 200 system is to be designed for entire DC area OR only server room. Should it be also considered for UPS room Pl clarify whether cables are required to be routed below false flooring & above false ceiling LAN Architecture to other building is not in the tender scope. As per the design the true ceiling is part of the hot zone area and so the thermal insulation is not required The present tender is as per the institute's existing electrical wiring policy and no change is recommended Electrical section will take care of the feeder cable as per the requirement along with other requirements of the institute. Only 10 KVA UPS system should have bypass cable from the second 60KVA unit. change in the requirement. If there is a need for additional camera unit it will be considered later. In tender Page 39, it is mentioned that "the fire hazards within the protected volume at all three levels - (i) below raised floor, (ii) Server room, (iii) above false ceiling" and Fire suppression system has to be NOVEC1230 based. Power and Network cables to all racks will be below raised floor area as explained in the tender. Cables required for BMS system components should be as per the installation requirement either below the raised floor or above the false ceiling area. All lighting power cables should be above false ceiling area. 4
8 11 SLD 9 15 10 17 Comfort Air Conditioner Specification / Features of UPS 11 38 FM200 12 38 13 46 FM200 - CCE approval letter BMS 14 9 TVSS 15 Bypass Isolation Transformer / Transformer at PDU It is recommended to have 2 nos PAC unit panel & changeover facility at PAC input Generally Comfort Air conditioning systems are not designed to work for continuous operation of 24 hours. Please clarify. Whether you require LBS OR Parallel configuration Layout provided in RFP is indicating 3 cylinders as against 2 nos mentioned in s. Kindly advice. Request you to kindly advice if Sample letter of similar type of proposed cylinder is acceptable. We understand Fire suppression system mentioned in Building automation system details shall be FM 200 We recommend to have TVSS at PDU in the server hall We recommend to have either Bypass Isolation transformer for 60 KVA UPS each or transformer at PDU to limit the neutral to earth voltage. Since input source feeder is backed up by Generator supply, separate changeover facility panel is not required The proposed comfort ACs in the FM area will not be used continuously for 24 hours day & night operation. change in the tender. As shown in the SLD, both UPS outputs should individually power the two PDUs available in the racks, so that there is no single point of failure. The UPSs should have the LBS feature enabled as per the tender and this feature may be used in future if need arises. Ref In Page 37: Design of the system shall be in accordance with NFPA 2001. Design calculation for the suppression system shall be done on UL listed, FM approved software. ASTM 106, Grade-B, Schedule-40 seamless pipes shall be used for this Acceptable; The actual cylinder installation should be of the same type with original CCE approval. Yes; Based on discussion, all vendors would quote for both type of gas suppression system and allied requirements. change in tender. Only additional proposed suppliers are accepted. change in tender. Isolation transformer should be at output of the UPS as specified in the tender. 5