Providing protection to electrical switchgears in 22KV Indoor Substation at Powai under AEMWWESII

Providing and fixing false ceiling with eco-friendly light weight calcium silicate tiles of Spintone/cosmos surface textured "Aerolite"make or equivalent of size 595 x 595mm having 15 mm thick densified microlook edge and 100% humidity resistence, incombustible as per BS 476 Part IV and thermal conductivity 0.043 w/m° KC and NRC 0.50 placed in true horizontal level suspended grid of size 600x600 mm made from hot dipped GI steel sections on Sillhoutte profile, rotary stitched double webbed white with 6mm reveal profile (white/black), where in main T runner of size 24 mm x 38mm and 0.33 mm thick @ 1200mm center to center and cross T of size 24mm X 28 mm and 0.33 mm thick, 1200 mm long spaced between main tee at 600 mm centre to centre and secondary cross T of Size 24mm X 28 mm x 0.33 thick of length 600 mm to be inter locked at middle of the first cross T in each panel to form grids of 600 mm x 600 mm and resting on periphery wall profile wall section 24 mm x 24mm x 0.40 thickness and laying false ceiling for services like diffusers grills including cutting, making opening for light fitting, fixtures, smoke detectors etc. wherever required, main tee runner to be suspended form ceiling using G.I. soffit cleats of size 25 x 35 x 1.6 mm of required length fixed to the ceiling with12.5mm dia and 50 mm long dash fastener, 4 mm dia G.l adjustable rods with good quality G.I level adjustment clips of 85 X 30 X 0.8mm spaced at 1200 mm center to center along main tee all complete at all heights as per specifications, drawings and as per direction of Engineer - in - Charge

Sealing the expansion joints by polysulphide sealant so as to make the joint completely water tight complete as directed of size 25 mm x 25 mm