tender for special service work under cetc zone, maintenance & testing of nitrogen fire protection system (including supply of material) installed at different substations under transmission central zone lucknow sl. no. item description 1 service 2 amc - maintenance and testing of n2 fire protection system at various s/s of upptcl central zone.substation list as attached as annexure a: 3 supply 4 regulator sub-assembly with pressure gauge, input pressure 161kg/cm2, material steel/brass 5 stem actuated valve assembly, gas actuated, pressure rating 0 to 21 bar, stainless steel, size 3/8 6 pressure monitor switch assembly (pms) oil static pressure operated, material : stainless steel. 7 heat sensor-sprinkler (heat sensing part of fire detector), flash point 141 degree celsius 8 hose pipe assembly, 1/4,0.9 mtr length material : pvc 9 hose pipe assembly, 3/8,0.3 mtr length material : pvc 10 non return valve (nrv), size g1/2] pressure rating - 10 bar, material brass 11 4 core, 1.5 sq.mm fire survival cable, shielded copper conductor, withstand capacity : 350 degree clsius 12 fire detector assembly, flash point 141 degree celsius, sensingarea 80cm radius, su 1/2 in 13 butterfly valve 125nb with nitrule-butadiene rubber seat 14 limit assembly (g02, g03, g04, g05, g06) current rating 16 amp 15 transformer conservator isolation valve (tciv) operated on oil flow rate (80 to 120 lpm) 16 220v hooter (dc fail), ac operated 17 220 vdc hooter (audio/visul), dc operated 18 door hinges for fec cubicle 19 diode strip(anode & cathode) 220 vdc 20 signal box assembly 21 door lock (fec door lock) 22 nitrogen cylinder, volume 10 cubic mtr, 68 ltr water capacity, n2 gas purity-99.9%, materials spec: is 7285, tr-334 23 refilling charges of n2 cylinder (including dismantling of cylinder and transportation) 24 differential latch contactor 220 vdc (auxiliary contactor, 220vdc, 4 no contacts) 25 control box assembly 220 vdc (standard)