SPECIAL REPAIR TO 2X35 KVA DG SETS AND 2 X COLD STORAGE AGAINST BER AT AF STN CARNICOBAR

Design ,supply, installation, testing & commissioning of cold storage unit pre fabricated, pre painted GI sandwich panel room size external dimension 2.8 x 2.8 x 2.60 mtr suitable for storage of frozen items. Cold storage unit has to maintain inside room temp (-) 20⁰ C , by providing Air cooled eco friendly energy efficient refrigerant unit, working on 3 Phase 50 Hz Ac supply with all controllers, relays, timer, refrigerant control valves, cut-outs, Electric copper cabling, Refrigerant copper Piping, insulation, mounting supports & structures for indoor/outdoor units, drain out piping, suitable PCC foundation for installation of unit complete with all standard accessories and as specified Below:- Make - Blue Star/Daiken/Hitachi

(a) Cold storage walls & ceiling - Pre fabricated pre painted GI sheet sandwich panels filled with127mm thick PUF Insulation. (b) Floor slab panel- Pre fabricated sandwich panel filled with 120 mm thick PUF insulation along with anti skid Aluminium checker plate. (c) Door size & type- Pre fabricated pre painted GI sheet sandwich panel duly filled with 127mm thick PUF insulation (34''x78') manual type swing door with SS hinges & door closer. (d) Foundation: PCC foundation as per OEM standard requirement at site. (e) Air conditioning unit: Air cooled energy efficient , eco friendly indoor, outdoor unit suitable for working on 3 Phase 50 Hz AC supply, to maintain the room temp (-) 20 Deg C by providing 2x12,000 BTU/hrs for 24x7 Hrs running in auto mode by providing all reqd standard sensors & controllers including mounting stands/structure as per OEM standards & site requirement.

(f) Refrigerant Piping : 100 % copper along with necessary fitting , cutting , brazing and making leak proof, providing Nitride rubber insulation and fixing with necessary support. (g) Refrigerant Gas: First filling of Echo friendly Refrigerant gas R-404A/R-410A /407c to achieve desired temp as per OEM instructions. (h) Controllers : Digital temp indicator cum controller, Refrigerant controls comprising of expansion valve , solenoid valve, HP/LP cut outs, sensors etc. (j) Air cooling units for cold stores complete with Auto & Manual defrosting arrangements, fan and motors etc. (k) De-humidifier: Cold storage unit shall provide with suitable capacity dehumidifier as per OEM instructions. (l) Room illumination: Suitable Bulk head LED light with switches. (m) Elect /Control wiring: Suitable size copper multi core wires/cables from indoor to outdoor unit & control cables in PVC conduits as reqd at site and specified by OEM.

(n) Drain piping: Suitable size UPVC drain Piping with all fittings from indoor unit to outside the room with proper slope & U trap. (o) Making good: This job including all necessary cutting chasing to floor, walls, making openings to walls required for installation of cold storage & Making good to all the disturbed surface matching to existing specification. (p) Note:(i) Nothing extra shall be paid for any extra items required at site for installation and functioning of the cold storage complete unit as per OEM instruction and as directed by Engr in Charge. (ii) Design and all parameters of pre fabricated room shall be approved by GE before procurement of materials.

Design ,supply, installation, testing & commissioning of cold storage unit pre fabricated, pre painted GI sandwich panel room size external dimension 2.8 x 2.8 x 2.60 mtr suitable for storage of frozen items. Cold storage unit has to maintain inside room temp (+) 2 to (+) 8 degrees , by providing Air cooled eco friendly energy efficient refrigerant unit, working on single Phase 50 Hz Ac supply with all controllers, relays, timer, refrigerant control valves, cut-outs, Electric copper cabling, Refrigerant copper Piping, insulation, mounting supports & structures for indoor/outdoor units, drain out piping, suitable PCC foundation for installation of unit complete with all standard accessories and as specified Below:- Make - Blue Star/Daiken/Hitachi

(a) Cold storage walls & ceiling - Pre fabricated pre painted GI sheet sandwich panels filled with127mm thick PUF Insulation. (b) Floor slab panel- Pre fabricated sandwich panel filled with 120 mm thick PUF insulation along with anti skid Aluminium checker plate. (c) Door size & type- Pre fabricated pre painted GI sheet sandwich panel duly filled with 127mm thick PUF insulation (34''x78') manual type swing door with SS hinges & door closer. (d) Foundation: PCC foundation as per OEM standard requirement at site. (e) Air conditioning unit: Air cooled energy efficient , eco friendly indoor, outdoor unit suitable for working on 3 Phase 50 Hz AC supply, to maintain the room temp (+) 2 to (+) 8 Deg C by providing 2x12,000 BTU/hrs for 24x7 Hrs running in auto mode by providing all reqd standard sensors & controllers including mounting stands/structure as per OEM standards & site requirement.

(f) Refrigerant Piping : 100 % copper along with necessary fitting , cutting , brazing and making leak proof, providing Nitride rubber insulation and fixing with necessary support. (g) Refrigerant Gas: First filling of Echo friendly Refrigerant gas R-404A/R-410A /407c to achieve desired temp as per OEM instructions. (h) Controllers : Digital temp indicator cum controller, Refrigerant controls comprising of expansion valve , solenoid valve, HP/LP cut outs, sensors etc. (j) Air cooling units for cold stores complete with Auto & Manual defrosting arrangements, fan and motors etc. (k) De-humidifier: Cold storage unit shall provide with suitable capacity dehumidifier as per OEM instructions. (l) Room illumination: Suitable Bulk head LED light with switches. (m) Elect /Control wiring: Suitable size copper multi core wires/cables from indoor to outdoor unit & control cables in PVC conduits as reqd at site and specified by OEM.

(n) Drain piping: Suitable size UPVC drain Piping with all fittings from indoor unit to outside the room with proper slope & U trap. (o) Making good: This job including all necessary cutting chasing to floor, walls, making openings to walls required for installation of cold storage & Making good to all the disturbed surface matching to existing specification. (p) Note:(i) Nothing extra shall be paid for any extra items required at site for installation and functioning of the cold storage complete unit as per OEM instruction and as directed by Engr in Charge. (ii) Design and all parameters of pre fabricated room shall be approved by GE before procurement of materials.

Earthing complete with galvanised steel earth plate electrode 60 cm x60 cm x 6 mm thick buried directly in ground ,(Earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level ,connected to and including galvanised iron earth wire 25 X 4 mm by means of nut, bolts, check nuts and washers of galvanised iron or steel and provision of charcoal dust and common salt packed all around the earth plate including necessary excavation and earth work in any type of soil and testing complete all as specified and directed and shown in electrical plate number 3 of MES SSR part-I(2009) Note: Unit rate quoted shall be deemed to be included the following (a) Excavation and earth work for drilling hole for electrode in any type of Soil. (b) PCC pit in cement concrete 1:2:4 type B-1, Pre cast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than1.87 Kg/ Sq meter. (c) Funnel with watering pipe of GI 20 mm nominal bore light grade and lugs etc complete all as specified and directed (d) 40 mm nominal bore medium grade GI protection pipe 7.5 meter long for protection of earthing lead complete all as specified and directed. (e) Requisite quantity of common salt and charcoal. (f) Testing of earthing.

Supply, Installation, commissioning and testing of acoustic enclosure Diesel Engine Generating set 35 KVA/28 KW (CPCB IV+), 415 Volt, 0.8 lagging power factor 50 HZ, 1500 RPM, self excited self regulated brush less AC generator mounted on common base plate complete with fuel tank, battery and standard accessories and fittings including acoustic enclosure suitable for ambient condition at Carnicobar and confirming to condition under IS/IEC 60034-1, ISO 1460, ISO 8528, ISO 3046, ISO 9001, ISO 13018 and all components as detailed complete with relay panel and switch gears for automatic starting on main failure, control panel having meter and sound proof canopy as per CPCB norms and foundation etc all as listed as following:- Make - Cummins, Caterpillar, Crompton Greaves, Greaves Cotton. i) The capacity of Generator set shall be net after all due de rating factors as per relevant ISI design. ii) The quoted rate shall be deemed to be inclusive of first fill of oil and final successful acceptance test. iii) The quoted rate shall be deemed to be inclusive load test of DG set at site, fuel Oil and load etc shall be arrange by the contractor without any extra cost.