supply of specially designed industrial safety extension board , specially designed industrial safety extension board with three numbers 20a, sp 240/415v mcb, and one number 30ma, 240v, double pole elcb/rcbo along with 15 meters 2.5 sqmm, 3 core copp er cable with two pin industrial plug three number and three number sockets of 20a along with two numb ers indication light placed on suitable wooden/fibre box with handle. mcb shall be confirming to is as per i s/iec 60898: part 1:2015 latest and rcbo/elcb shall be conforming to is conforming to is 12640 (part 1 ): 2008 or latest. internal wiring shall be done with 1.5 sqmm single core copper cable and termination sh all be done with bimetallic terminal connector suitable for 2.5 dia aluminium tubular busbar for 16a coppe r palm copper cu etp cw 0041a and aluminium barrel aluminium al 99.5 cable connector temperature re silience, corrosion resistance size: 2.5 sqmm confirming to is: 5561-1970 with maximum temperature rise of 90 degree celsius. material shall be confirmed to designation a6 of is: 617-1959. breaking 1 resistance for barrel 85 n/m sq m and for palm 225 n/m sq m with stretching a5% for barrel must be for palm 16 wit h earth leakage protection of 30 ma, with cord end termination suitable for copper cable of conductor size 1.5 sqmm with cord-end termination. nabl certificate for the same shall be attached with the offer or at t he time of supply. one sample shall be approved from dv.cee/wvpl. before hulk supply. [ warranty period: 30 months after the date of delivery ] ]