bids are invited for copper pipessupply & installation of insulated copper refrigerant piping comprising 1/2 and 1/4 diameter lines, complete with appropriate thermal insulation, taping, supports, clamps, fittings and all necessary accessories. the work shall be executed as per approved specifications, drawings and detailed instructions of the engineer-in-charge (eic) ensuring proper alignment, leak-proof joints and adherence to relevant standards. , power cablesupply & laying 2.5 sq.mm, 4-core isi marked, frls, pvc inculated power cable drawn through suitable 20 mm diameter isi marked pvc conduit pipe, complete with all required accessories such as bends, junction boxes, saddles, clamps, glands, pin-type lugs and termination hardware. the work shall include proper routing, dressing, identification and securing of cables, ensuring safe and reliable operation. all activities shall be carried out in accordance with approved specifications, relevant standards, and as per the directions of the engineer-in-charge (eic).cable make - anchor/havells/kei/polycab/finolex/r.r. kabel , drain pipeproviding & fixing of 25 mm nominal outer diameter chlorinated polyvinyl chloride (cpvc) drain piping system suitable for hot and cold water applications , complete with all necessary cpvc plain and brass threaded fittings. the work shall include fixing of pipes with approved clamps/supports at intervals not exceeding 1.0 metre, jointing of pipes and fittings using one-step cpvc solvent cement and ensuring leak-proof and durable connections.the scope shall also include concealed installation by cutting chases in walls/floors, proper laying and alignment of pipes and making good the disturbed surfaces to match the original finish. all works shall be executed as per approved specifications, relevant standards and to the satisfaction and directions of the engineer-in-charge (eic). , chasing workcarrying out wall/floor chasing work for proper routing and laying of copper refrigerant pipelines, electrical cables and drainage pipes including marking, cutting and dressing of chases to the required size and alignment. the scope shall include careful execution to avoid damage to existing structural and service elements followed by placement of services, refilling of chases with suitable materials and making good the surfaces to match the original finish.the work shall be completed in all respects, ensuring neatness and structural integrity, in accordance with approved specifications and as per the directions of the engineer-in-charge (eic).