supply of walk in cold rooms ( 50 nos ) , ppgi puf filled panels as per spec no 3 , 17 , pcc concrete flooring 1:2:4 at floor stand ( 1 cement: 2 coarse sand : 4 graded stone aggregate 20mm nominal size ) , flooring of walkincold room as per spec no . 5 , door with hinges and emergency safety lock size 900mmx2000mm as per spec no 4 , emergency alarm with standard length of cable as per spec no 4 , two 5kw condensor and evaporator unit with automatic switch and canopy as per spec including fixing and installation , copper pipes for refrigeration unit additional requirement , drain pipe additional requirement , cables for refrigeration unit additional requirement , control panel with switches and alarm as per spec , vapour proof lamp 2nos with cables and switches as per spec no 14 , external light with cables and switches as per spec no 14 , digital data recorder with temperature alarm and sms alert facility for temperature alarm as per spec no 12 , 13 , ss 304 grade 14 gauge shelves 6x3 feet as per spec no 22 , ss 304 grade 14 gauge shelves 5x3 feet as per spec no 22 , ss 304 grade 14 gauge shelves 4x3 feet as per spec no 22 , pvc blinds for door way as per spec no 23 , earthing and safety equipments : supply and providing pipe earthing as per is 3043 with 3 . 60m long 40mm dia b class gi pipe , gi funnel with weld mesh , filling requried quantity of charcoal & salt including construction of inspection chamber with a bed concrete of 1:4:8 pcc using 40mm broken stone ( 10cm thick ) , brick work in cement mortar 1:6 , plastering the surface of brick masonry and the exposed surface of pcc bed with cement mortar 1:4 , 12mm thick , ( the finished inside dimension shall be 300x300x300mm ) but excluding test joint , earth continuity conductor to the plate , and covering at the top ( in ordinary soil ) , supply and drawing bare earthing conductors of the following sizes along with wiring / cables and giving connection as required . 4 . 00 mm copper conductor ( 8 swg ) , door with hinges and emergency safety lock size 1000mmx2000mm as per spec ( not taken for evaluation ) , emergency alarm cable additional requirement ( hooter ) , two 3kw condensor and evaporator unit with automatic switch and canopy as per spec including fixing and installation , two 4kw condensor and evaporator unit with automatic switch and canopy as per spec including fixing and installation , two 6kw condensor and evaporator unit with automatic switch and canopy as per spec including fixing and installation , two 8kw condensor and evaporator unit with automatic switch and canopy as per spec including fixing and installation , additional digital display unit as per spec with standard length of cables as per spec , automatic 3 phase change over , cable for additional digital display unit , demolition of old walkincold room , mcbs and mcb distribution boards: supply and installation of sheet steel , phosphatised and painted , dust and vermin proof enclosure of mcb db including copper / brass busbar , neutral link , earth bus and din rail suitable for fixing mcb / isolator etc . fixed on wall using suitable anchor bolts or fixed in recess including cutting hole on the wall , making good the damages , colour washing etc . as required . 4 way ( 8+12 ) - double cover tpn vertical db with provision for fixing 4p mcb / isolator / rccb / rcbo as incomer and sp / tp mcb as outgoing ( ip 42 / 43 ) , supply and fixing of following rating residual current circuit breaker having earth leakage protection ( rccb ) as per specification as required 4 pole 63 amps . ( 415 volts ) , 100ma sensitivity , supply and fixing of following rating , 10 ka , miniature circuit breakers of the following series as required . 6 a to 32 a tp mcb , c-curve mcb , supply and fixing of following rating , 10 ka , miniature circuit breakers of the following series as required . 6 a to 32 a sp mcb , c-curve mcb , sp mcb blanking plate , cables and cabling : supply of following size 1 . 1 kv grade xlpe insulated , pvc sheathed , armoured aluminium / copper conductor cable conforming to is 7098 ( part 1 ) amended upto date . 4 c 16 sq . mm al , supply of following size 1 . 1 kv grade xlpe insulated , pvc sheathed , armoured aluminium / copper conductor cable conforming to is 7098 ( part 1 ) amended upto date . 3 c 10 sq . mm al , supplying and making end termination with brass compression gland and aluminium / copper lugs for following size of xlpe insulated pvc sheathed aluminium conductor cable of 1 . 1 kv grade as required-4c 25 sqmm sq . mm al , laying and clamping of 1no . pvc insulated and pvc sheathed armoured power cable , 1 . 1kv grade of the following sizes using clamps noted along with the cables , spacing of clamps not exceeding 60cms , making good the damages colour washing etc . as required 4 core cable of size exceeding 6sq . mm but not exceeding 25 sq . mm with company fabricated saddles . , external over head canopy for 2 outdoor units if the compressor units are placed in open area , stablizer 15 kva 3 phase wide range as per spec