PROVN OF WALK IN COOLER IN DEPARTMENT OF LAB SCIENCE, EARTHING PITS AT DIFFRENT LOCATIONS AND EXHAUST FANS (10Nos) at 7 AFH KANPUR CANTT

Amount

Supply, installation, testing and commissioning of Walk - in cold room of two chambers ,Freezer Room of size 12' x 10' x8' consisting of wall and ceiling panel made out of PGI sheet filled with 120 mm PUF insulation, and Ante Room of size 5'x5'x8' consisting of wall and ceiling panel made out of PGI sheet filled with 60 mm PUF insulation, for Blood Bank and other low temperature application , anti skid GI flooring on 60 mm PUF, door of suitable dimension,hydraulic door closer, digital temperature indicator,Air cooled low temperature split unit of 3 HP rating with Reciprocating/Scroll Compressors working on R - 32/ Eco Friendly refrigerants to maintain temperature of 4+/- 2 degree Centigrade at an ambient temperature of 30 degree centigrade including necessary electric connections of suitable DBs and point wiring as and where required with all necessary connections against followig specifications:- (a) Programmable digital cotrolled with touch screen display. (b) Audio and visual alarm in case of temperature deviation. (c) Blowers for air circulations and air heaters required. (d) Hermetically sealed CFCs free compressor and environment friendly refrigerent. (e) PUF insulated modular cabinet of capacity 42000 Ltrs. (f) Delay time and heavy duty latch with lock and key ,interior illumination ,password management for restricted access with suitable connection arrangements of stand by system. (g) Temparature range 2-8 degree accuracy +/- 5 degree C uniformity +/- 2 degree C. (h) Documents to be provide IQ,OQ,PQ with material test report and caliberation report. (j) Documents to be provide IQ,OQ,PQ with material test report and caliberation report.

M&L earthing complete suitable for walk in cooler with copper plate electrode 60×60cm ×3.15mm thick electrode and (earth pit not less than 2.25 mtrs deep below normal ground level ) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to 20×3mm copper strip as burried directly in ground by means of bolts, nuts check nuts and GI washers earth plate surrounded by picked layer of coal dust and common salt 15cm thick all around bottom and top and watering pipe 20mm bore of GI pipe medium bore GI pipe light grade connected to funnel heavy wire mesh for watering purpose and 40mm bore GI pipe light grade for protection of copper strip from earth plate upto 7.5 metre and connecting to , main switch board including 10mm thick cast iron cover angle iron frame and PCC 1:2:4 type B-I for concrete pit, including necessary excavation and earth works etc , as shown in electrical plate No 5 of SSR Part - I of 1991 and testing on completion all as specified. Note : PCC chamber shall be constructed at least 1.5m away from earth pit, pipe for watering shall be provided in slanting manner.

Provision of Maintenance free chemical earthing with copper earth plate & copper earth strip with referance as per IS 3043-1987 affirmed 2006 - Indian standard code of practice for earthing with following specifications:- (a) Earth pit :- Bore Size 1mtr length x1.5 M breadth x3.5M depth and earth pit of Size 5ft x 5ft x10ft (b) Earth Electrode:- Thickness 17mm casting size dia 100mm and length 3M, high tensile carbon steel, to increase the electrode length in multiple of 1 Mte if required more than 3Mtr ,exothermally welded or connected with socket of copper coating of 250 micron or more. (c) Earth strip :- Copper bus bar of size 250mmx50mmx6mm minimum 99.9% copper cupper content shall be exothermally welded to rod with 4 holes of 12 mm dia (2 on each side) for connecting earth conductor ,routed through underground pit (2ft) and laid up to the main earth strip. (d) Earth enhancement material :- Macronite /Bentonite electrode 16mm copper rod , casting size 120mm dia x 3.5 mtr length, earth resistance value less than 1 ohm. Note:- Bentonite should have resistivity below 0.2 Ohm-meter,PH value >7 but < 9, aluminium silicate Bentonite chemical ,Mg SO4. Qty minimum 75kg for 5'x5'x10' earth pit and 50 kg for 300mm bore. (e) Construction of masonary work :- Brick work in CM 1:6 of height of 600mm (100mm above ground level & 500mm below ground level). Inspection chamber should be 300mmx300mmx300mm concrete box in 1:2:4 (wall thickness min 50mm) with smooth cement plaster finish). Lid cover approx 25mm to 50mm thick with pulling hooks. (f) Laying of earth conductor from the earth pit to main earth strip inside the building :- The earth conductor size width 25mm & 3mm thickness copper with PVC sleeve.. Routed through under ground pit (2ft) from DB and laid up to the earth strip. (g) Identification of earth pit by metal peg :- Each pit is to be identified by a suitable display board with details like Pit No, Type of earth,earth resistance. The marking shall be clear , distinct and visible to the naked eye at distance from 1M.

M&L for point wiring with multi stranded copper conductor FRLSH Cable, 1100 volts grade PVC insulated and unsheathed of size 1.5 Sqmm single core in and including PVC concealed conduit not less than 20mm dia ( medium duty ISI marked) and conduit fitting with and including MS terminal boxes, 3 mm thick bakelite laminated sheet top cover for housing swith/socket for one fan/ light point controlled by one switch including provision of 1.5 Sqmm PVC insulated & unsheathed with single core , multi stranded copper conductor FRLSH cable as earth wire to common earth & Connectoed to earth dolly as specified and directed.

S&F switch piano type 240 V, 5 Amp, SP one way flush type complete all as specified and directed.

S&F ceiling rose surface backelite, 65X 20 mm three terminal complete all as specified and directed.

S&F exhaust fan made of strudy Engneering plastic complete with louvers shutter, voltage 230V, 50Hz, RPM 1200, copper winding of sweep 300mm including making suitable hole on wall and its connected finishing cement work all as specified and directed.

SHYAM AND SONS ENTERPRISES (BID ID -3109252)

Avinash Enterprises (BID ID -3132390)

santosh electronics (BID ID -3135712)

L-7 Primewave Communications (BID ID -3107946)

VISHAL TRADERS (BID ID -3101082)