PROVN OF SOLAR HEATER SYSTEM FOR HOT WATER SUPPLY FOR SINGLE JCOs/OR ACCN AT SEWAR FORT BHARATPUR MIL STN

Amount

Supply, installation, testing and commissioning of solar water heating system suitable for inlet water with chlorine and fluoride content up to 100 PPM and comprising of solar flat plate collector ,collector stand assembly, stainless steel insulated hot water storage tank with heat exchanger of 500 liters per day capacity with electric back up ,with collector "A" size aluminium box collector and comprising of following:-

(b) Insulated stainless steel Hot water storage tank non pressure type made of stainless steel grade 04 Cr 18 NI or 07 Cr 18 NI of IS 1570(Part 3)-1985, TIG welded of 200 liters capacity, nonmagnetic tank with stainless steel fittings with following specifications-1 No shall be deemed to be included in unit rate quoted.

(c) Stand for solar flat & hot water tank made with MS work to bear wind velocity upto 200 KM/Hour shall be deemed to be included in unit rate quoted.

(d) Provisions of electrical back up with minimum 2X03 KW (06KW) heating element including providing 2 Nos 20 Amps MCB SPN 10 KA rupturing capacity in sub-main distribution board and providing electric connection in metallic conduit with 4 Sqmm 03X single core, stranded copper conductor, PVC insulated wire from outlet of MCB to electrical back up with connected accessories-one job. The solar water heating system shall be provided on roof of single/double storey building. The electrical back up connection shall be tapped from sub main board provided at ground floor shall be deemed to be included in unit rate quoted.

(e) Heat exchanger shall be cage type and make of stainless steel tube of grade 04 Cr18Ni or 07Cr18 Ni of IS 1570(Part 5)-1885 shall be deemed to be included in unit rate quoted.

(f) System internal piping from collector to hot water tank shall be ISI marked GI pipe medium class of 20mm bore IS:1239 duly insulated with nitrile rubber 19mm thick and Al cladding of 0.5mm thick, shall be deemed to be included in unit rate quoted.

Supply, installation, testing and commissioning of solar water heating system suitable for inlet water with chlorine and fluoride content up to 100 PPM and comprising of solar flat plate collector ,collector stand assembly, stainless steel insulated hot water storage tank with heat exchanger of 200 liters per day capacity with electric back up ,with collector "A" size aluminium box collector and comprising of following:

(b) Insulated stainless steel Hot water storage tank non pressure type made of stainless steel grade 04Cr18 Ni or 07Cr18 Ni of IS 1570(Part 3)-1985, TIG welded of 200 liters capacity, nonmagnetic tank with stainless steel fittings with following specifications-1 No.

(c) stand for solar flat & hot water tank made with MS work to bear wind velocity upto 200 KM/Hour shall be deemed to be included in unit rate quoted. .

(d) Provisions of electrical back up with minimum 3 KW heating element including providing 01 No 20 Amps MCB SPN 10 KA rupturing capacity in sub-main distribution board and providing electric connection in metallic conduit with 4 Sq mm 03X single core, stranded copper conductor, PVC insulated wire from outlet of MCB to electrical back up with connected accessories-one job. The solar water heating system shall be provided on roof of single/double storey building. The electrical back up connection shall be tapped from sub main board provided at ground floor shall be deemed to be included in unit rate quoted.

(e) Heat exchanger shall be cage type and make of stainless steel tube of grade 04 Cr18Ni or 07Cr18 Ni of IS 1570(Part 5)-1885 shall be deemed to be included in unit rate quoted.

(f) System internal piping from collector to hot water tank shall be ISI marked GI pipe medium class of 20mm bore IS:1239 duly insulated with nitrile rubber 19mm thick and Al cladding of 0.5mm thick shall be deemed to be included in unit rate quoted.

NOTE APPLICABLE FOR SRL ITEM NO 1 & 2: (i) The system shall be tested on completion to ensure that 200/500 (as specified) liters of water at 60 degree centigrade is available in hot water tank on a normal day in cold season. (ii) General purpose overhead tank shall be provided at roof 3 M above roof level (iii) Normal water pipes and accessories from the normal water over head tank to inlet of plate collector shall be measured and paid for separately. Similarly Hot water pipes from hot water storage tank to bathroom/kitchen shall be measured and paid for separately.

S & F hot water pipe duly of 20 mm bore GI pipe medium grade insulated with Nitrile rubber tube 19mm thick, glass wool ribben cementing with adhesive and Al cladding of 0.6mm thick complete all as specified and directed by Engr-in-charge.

M&L pipe galvanized iron medium grade of 25mm bore complete with all fittings and fixed complete to walls ,and ceiling or laid in floors, jointed tested and commissioned etc complete all as specified and directed.

M&L pipe galvanized iron medium grade of 20mm bore complete with all fittings and fixed complete to walls ,and ceiling or laid in floors, jointed tested and commissioned etc complete all as specified and directed.

M&L for rotational moulded polyethylene water storage tanks 1000 litres (cylindrical vertical with closed top) hoisted and fixed in position with float valve all as specified in SSR Part I etc complete all as specified & directed.

M&L for rotational moulded polyethylene water storage tanks 500 litres (cylindrical vertical with closed top) hoisted and fixed in position with float valve all as specified in SSR Part I etc complete all as specified & directed.

Excavating in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation, etc or for shaft, well, cesspit, manhole, pier holes etc. not exceeding 10 sq m on plan and not exceeding 1.5 m in depth and getting out hard/dense soil.

Removing the excavated material not exceeding 50m and deposing where directed at a level not exceeding 1.5m above the starting point.

Returning filling with earth obtained from excavation including spreading watering and consolidation in layers not exceeding 25 cm thick etc complete all as specified & directed.

Supply & spread unwashed dry river sand for sand cushioning and covering the underground cable in trenches etc complete all as specified & directed. Note :- Punning thickness shall be measured.

M&L for brick protection with sub Class`B` bricks old size laid dry, flat over cable perpendicular across the cable in trenches etc complete all as specified & directed.

Supply, laying, testing & commissioning LT XLPE insulated armoured (heavy duty) electric cable of size 10 Sqmm 2 core with stranded aluminium conductor 1100 volts grade (ISI marked) & laid in trenches/pipes or fixed on pole etc complete all as specified & directed.

S & F Distribution board factory made and tested, made of sheet metal enclosure 4 way SPN with 200 Amp rated bus bar 240 volts (double door type). powder coated suitable for mounting the MCB 240 volt etc complete all as specified & directed.

S&F MCBs of 'C' series having breaking capacity 10 KA, ISI marked including required wiring connections with copper lugs of suitable size provided in MCB DBs of following ratings:-

(a) Single pole 6 to 32 amps

(b) Single pole Neutral 40 amps

S&F 25mm Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed etc complete all as specified & directed.

S&F 20mm Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed etc complete all as specified & directed.

M&L for cement concrete B1 type, (1:2:4) using 20 mm graded aggregate in in roof kerbs or mud stops, rounded or chamfered on edges etc complete all as specified & directed.

S&F 20mm dia bib taps, long head, fancy type, chromium plated cast copper alloy with crutch or butterfly handle, screwed down, screwed for iron pipe or for brass ferrule etc complete all as specified & directed.

M&L for iron work including MS ISA angle, ISMC , MS Sheet of 3.15mm thick complete including welding etc complete all as directed by Engr-in-charge.

Earthing complete with galvanised steel earth plate electrode 600×600×6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised earth lead wire 4.0mm dia by means of bolts, nuts, check nuts and washer etc of galvanised iron and earth lead protected by provision of GI pipe medium grade 15mm bore from earth electrode to test point including providing of concrete pit in PCC (1:2:4) type B-1 using 20mm graded stone aggregates with 40mm thick cover of RCC (1:2:4) reinforced with XPM sheet (weight not less than 4Kg/Sqm) and frame of angle iron 25 x 25 x 6mm with lugs 2 Nos and with 8mm dia MS bar handle made to shape, GI pipe medium grade 20mm bore pipe for watering perforated at bottom 1.75 mtr long placed on top edge of earth plate, common salt and charcoal filling test point with fixing arrangement, funnel, wire mesh and earth work in hard/dense soil, returning in and removal of surplus soil to a distance not exceeding 50mtr, complete all as specified in electrical plate No 3 of SSR Part I and connection to earth test point including testing on completion all as directed. Note :- The cost of funnel pipe of 20 mm GI light grade pipe and protection pipe of 15mm bore GI medium grade is deemed to be included in quoted unit rate.

M&L for monkey guard made out of MS ISA (40X40X6)mm, MS flat (25X3)mm and MS welded mesh 25mm for 1000 Litres PVC tank including hinge 100mm, brick work, PCC work & plaster etc complete all as directed by Engr-in-charge.

M&L for monkey guard made out of MS ISA (40X40X6)mm, MS flat (25X3)mm and MS welded mesh 25mm for 500 Litres PVC tank including hinge 100mm, brick work, PCC work & plaster etc complete all as directed by Engr-in-charge.

krishna Associate