electrical works for lab no. b202, biological science block in iiser, thiruvananthpuram ; 1 wiring for circuit / submain wiring alongwith earth wire with the following sizes of frls pvc insulated copper conductor, single core cable in surface / recessed medium class pvc conduit as required. 2 2 x 4 sq.mm + 1 x 4 sq.mm earth wire 3 4 x 6 sq.mm + 2 x 6 sq.mm earth wire 4 supplying and drawing following sizes of frls pvc insulated copper conductor single core cable in the existing surface / recesed pvc conduit / cms etc as required. 5 3 x 4 sq.mm 6 6 x 6 sq.mm 7 supplying and drawing following sizes of frls pvc insulated copper conductor single core cable through upvc mini trunking of size 25x12mm as required. 8 3 x 4 sq.mm 9 supplying and fixing of following sizes of upvc cable managementsystem system along with accessories on surface including supply of fixing materials, internal couplers, joint covers, end caps, internal and external corners, dividers, cable retainers, angles tee etc fixing screws as required and connected to the existing cms system ( mk - prestige 3d ) . 10 170mm x 50mm 11 dismantling and refixing of the existing 170mm x 50mm size upvc cable management system on wall completed as required with necessary fixing accessories. 12 supplying and fixing following size / modules, pvc box suitable for item no.4alongwith modular base & cover plate for modular switches in existing cable management system etc as required. 13 4 module ( white ) with blank plate 14 6 module ( white ) 15 4 module ( black ) with blank plate 16 6 module ( black ) 17 supplying and fixing followingmodular switch / socket on the existing modular plate & switch box including connections but excluding modular plate & swich box etc as required. 18 15 / 16a switch ( black ) 19 6 pin 15 / 16a socket ( black ) 20 15 / 16a switch ( white ) 21 6 pin 15 / 16a socket ( white ) 22 supplying and fixing of following modules gi box alongwith modular base & cover plate for modular switches in surface etc as required. 23 6module 24 fixing of 8 / 12 ways surface mounted vertical type 415v tpn mcb distribution board of sheet steel, dust protected duly powder painted inclusive of tinned copper bus bar, common neutral link, earth bar, din bar for mounting mcbs ( but without mcbs and incomer ) as required.note: ( legrand make vertical db shall be supplied by the department at free of cost ) . 25 supplying and fixing 5a to 32a rating, 240 / 415v, 10ka, c curve single pole miniature circuit breaker suitable for inductive load of following poles in the existing mcb db complete with connections, testing and commissioning etc. as required.make : legrand 26 single pole 27 supplying and fixing following rating four pole 415v residual current circuit breaker ( rccb ) , having a sensitivity current of 30ma in the existing mcb db complete with connections, testing and commissioning etc. as required.note: db make - legrand 28 40a 29 supplying and fixing following rating four pole 415v miniature circuit breaker ( mcb ) c curve, in the existing mcb db / enclosure complete with connections, testing and commissioning etc. as required.note: db / enclosure make - legrand 30 32a 31 supplying and fixing 32a 4p mcb and 40a, 30ma 4p rccb in sheet steel enclosure on surfcae complete with connections, testing and commissioning etc as required, 32 supply of pre-fabricated powder coated raceway ( 2.4mtrs in length ) with 14swg ( 2mm ) thickness crca sheet including the modular accessories as listed below:1. 6 / 16a socket - 4nos2. 16a switch 4nos3. 6module cover plate - 2nos4. 1m cover plate - 6nosensure separate compartment for cat 6 cable & electrical wireand seperate cut out for providing 6 numbers of lan socket.interconnection between sockets shall be done by using 3rx 4sq.mm frls pvc insulated copper wire.drawing of the enclsoure shall be got approved from the department before fabrication.make: switches / sockets / lan sockets - mk blenze 33 supply, installation, testingandcommissioningof maintenancefreechemicalearthelectrodescomplyingwith the latest version of is 3043 / iec / ieee specifications. the earth electrode shall be with 2 m long, 14 mm. dia high tensile strength, copper bonded steel rods coated with minimum 250 micronpureeletrolytic copper.soil enrichmentcompound in quantities not less than 15 kgs shall be used and the earth pit shall be back-filled with good quality soil without any stones / granules / sand etc. the earth station shall be provided with suitable clamp made of ss to connect rod with earth conductor, polypropylene & polyethylene earth electrode inspection chamber with heay duty cover. the dimension shall be 300mmx300mmx 300mm with a weight bearing capacity of 50kn. make : obo / cape / dehn 34 supply and fixing 25mm x 3mm copper strip on surface with necessary frp support including earth bench for connections etc as required. 35 supply and laying 25mm x 3mm copper strip at 0.5 metre below ground as strip earth electrode including connection / terminating with nut, bolt, spring, washer etc. as required. ( jointing shall be done by overlapping and two sets of brass nut bolt and spring washer spaced at 50mm ) 36 supply and laying utp 4pair cat 6 lan cable in the existing surface / recessed pvc conduit as required. 37 1 run of cable 38 supplying & fixing of following sizes of medium class pvc conduit along with accessories in surface / recess including cutting the wall and making good the same in case of recessed conduit as required. 39 25mm