SPECIAL REPAIR / REPLACEMENT OF HT UG CABLE FROM MH POWER HOUSE TO DEFENCE COLONY AT MH AND INSTALLATION OF MEDICAL GAS PIPE LINES TO FAMILY WARD II, MEDICAL WARD AND SURG WARD AT MH UNDER GE STM CHENNAI

Earthwork excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m depth and getting out in soft / loose soil for laying cables / pipes / erection of poles etc. complete all as specified and as directed. Note:- Excavation shall be carried out manually at certain places wherever directed by the Engineer-in-Charge at site to avoid breakage of existing Electrical / water connections. Quoted rate shall deemed to be include for the manual excavation and nothing extra shall be paid .

Removing excavated soil to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

Returning filling in soil including spreading, levelling watering and well ramming in layers not exceeding 25 cm each complete all as specified and directed.

M&L for burnt bricks sub class 'B' old size laid in trenches with equal to length of bricks across the cable for cable protection all as specified and as directed

M&L for fine sieved excavated dry soil laid to the required width of trench at bottom and top of cable as cushioning to cable complete all as specified . Note :- Thickness shall be measured after punning

Supply and lay HT cable , XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) 11000 volts grade (earthed cable) with stranded aluminium conductor cable of size 3 core x120 sqmm complete all as directed. Note: (a) HT Cable route indicator shall be provided at site and quoted rate shall deemed to be included in the quoted rate. (b) The routine tests and acceptance tests as per IS 7098 (Part –II) shall be carried out at factory premises and contractor shall submit the test report alongwith paid vouchers and quoted rates shall deemed to be include for the same.

Supply and lay GI tubes, 'light grade' galvanised, with all fittings of bore of tube 100mm laid in trenches for drawing cables under road/drain crossings etc all as specified and directed

M&L for making bore hole under the road in any type of soil through trenchless technology by HDD (horizontal direction drilling method) including preparing and setting up the plant and equipment, preparing new pipe/cable laying work like excavation shoring/ strutting etc drilling, stringing reaming pulling back the new work on the path alignment proper disposal of drilling fluid and the ground penetrating radar survey to protect existing utilities at the pipe/cable installation location restoration of site after completion all inclusive as per and STT IS No 2.3 2.2 2.2 second edition 2008 code of practice of trenchless technology suiting Indian condition for making horizontal bore size of 250mm dia suitable for HDPE pipe insertion under the road crossing, hard standing including HDPE pipe of size 200 mm nominal dia 28.30 mm minimum wall thickness of grade PE 80 16 KG/CM2 for protection of MS pipe/cable to any depth complete all as specified and directed.

S&F cable jointing kit for 11 KV (earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm complete all as specified and directed.