PROVN OF CERTAIN WORK SERVICES FOR NEW AUTOMATIC WEATHER STATION AT AFS UNDER GE (AF) JORHAT

Surface excavation not exc. 30cm deep and averaging 15cm deep and getting out in soft and loose soil complete all as specified and as directed.

Removing excavated materials exceeding 250m but not exceeding 500m and depositing where directed at a level not exceeding 1.50m above the starting point complete all as specified and as directed.

M&L for hardcore of gauge not exc. 63mm of broken stone or boulders, deposited, spread and levelled in layers not exc.15cm thick, watered and rammed to a true surface complete all as specified and as directed.

M&L for 100mm thick plain cement concrete (1:4:8) type D-2 (using 40mm graded stone aggregate) as in foundation filling and mass concrete, sub base, etc. including necessary form work complete all as specified and as directed.

M&L for sand filling under floors or in foundations including watering and consolidation complete all as specified and as directed.

M&L for brick work with sub class 'B' bricks, straight or curved on plan exc. 6m mean radius, built in cement mortar (1:4) complete all as specified and as directed.

M&L for rendering 15mm thick in cement mortar (1:4) on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement complete all as specified and as directed.

M&L for machine pressed precast concrete interlocking paver block with grey cement and no pigment any shape and size confirming to IS 15658-2006 of 60mm thickness, M-35 Grade complete all as specified and as directed.

M&L for plain cement concrete (1:2:4) type B-0 (using 12.50mm graded stone aggregate) as in side of paver block, path, rounded or chamfered on edges complete all as specified and as directed.

M&L for cement concrete 40mm thick (1:2:4) type B-1 (using 20mm graded stone aggregate) as in path, steps, etc. complete all as specified and as directed.

M&L for preperation of newly plastered wall surfaces and applying three coats of white wash complete all as specified and as directed.

S&F of cubical housing cabinet type LT panel board of size 1.2mx1.0mx0.5m out door type, platform mounted factory made of adequate size, totally enclosed dust and vermin proof openable from both front and rear side made out of 14 SWG (3.15mm) thick CRCA MS sheet of overall and built upon suitable size angle iron frame work, having front and rear hinged doors, Gl earthing strips at rear side, bottom detachable gland plate complete with suitable size zinc plated and passivated nut, bolts, spring and washers. The cabinet and all members should be chemically treated with MSR solution for anticorrosive treatment and apply powder coated paint (RAL-7032). The panel should be suitable for 415 volts, 50 Hz, 3 phase 4 wire system and internal connection should be provided with aluminium strips of suitable size and necessary foundation work comprising with the followings:-

M&L for earthing complete with copper earth plate electrode of size 600x600x3.15mm thick, buried directly in ground with earth pit not less than 2.25m deep below ground level with top edge of plate not less than 1.5m below normal ground level connected to copper earth strip of size 20x3mm earth lead by means of nuts, bolts, check nuts, washers of galvanized iron as steel, protected by galvanized iron pipe 40mm bore (medium grade) including cement concrete (1:3:6) type C-1 (using 20mm graded stone aggregate) earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 45x45x5cm thick reinforced with 8mm dia TMT bars @ 15cm c/c both ways with 10mm dia mild steel round bar of 30cm long, bent to shape as lifting handle, funnel, wire mesh, 20mm bore galvanized iron pipe (medium grade) for watering, charcoal or coke and salt in alternate layers including necessary excavation and earth work in soft/loose soil complete all as shown in Electrical Plate No. 3 of SSR Part-I including testing on completion complete all as specified and as directed. Note : GI strip upto 7.5m including testing is deemed included in the quoted rate.

Excavation in trenches not exc. 1.50m wide and not exc. 1.50m in depth, getting out in soft/loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 250mm thick in soft/loose soil complete all as specified and as directed.

Removing excavated materials not exceeding 50m and depositing where directed at a level not exceeding 1.50m above the starting point complete all as specified and as directed.

M&L for cable laying in trenches/passing through pipe/on wall of XLPE insulated, heavy duty, galvanished steel strip or wire armoured electric LT cable with stranded aluminium conductor for 1100 volts grade, cross sectional area 25 sqmm, 3.5 core complete all as specified and as directed. Note :- Rate of the saddle and clamp for fixing of cable on wall is to be deemed included in quoting rate.

M&L for sand cushioning (dry) in trenches for protection of UG cable (below, above and around the UG cable laid in trenches) of 230mm spread thickness and consilidated (punned) upto 180mm thickness complete all as specified and as directed. Note : For the purpose of payment, punned thickness of sand cushioning only shall be measured and paid for.

S&F for sub-class 'B' bricks, well burnt, laid breadth-wise along the length of cable laid in trenches over sand cushion laid for UG cable protection complete all as specified and as directed.

S&F steel tubular pole 2m long including necessary reducer, bracket, clamp, nut bolts, screws and welding of base plate of suitable size in pole including painting of pole with aluminium paint, bracket is suitable for fitting 35 Watt LED street light including necessary PCC foundation work complete all as specified and as directed.

S&F LED street light fitting 35 Watt 230 V AC outdoor type with high pressure die cast aluminum hosing and heat resistant complete with driver, lamp bracket with impact and corrosion resistant including thermal management in multiple optics complete with IP 65/66 protection complete all as specified and as directed.

Labour only for horizontal boring for passing protection pipe up to 80mm bore, under road/foot path, not exceeding 10m in a single length complete all as specified and as directed. Note : Pipe shall be measured and paid separately.

S&F as in repair galvanised iron pipe of size 40mm bore, 'light grade' for protection of UG cable, laid in floors/road crossing, fixing to pole with mild steel clamps, nuts, bolts, etc. complete all as specified and as directed.

Ground water survey and resistivity test for bore well to locate and identify the suitable site (point) for potable and good yield water by any Government or Govt approved agency by geologist and report to be submitted and approved by GE before drilling the borewell complete all as specified and as directed.

M&L for drilling of bore well by deploying required plant and machinery for boring 200mm dia size pilot bore through any kind of soil / strata including hard stone/boulder by direct rotary method up to and including 60 metre depth below ground level complete all as specified and as directed. Note : 01 (one) trial hole to be done at site and rate for the same as deemed to be included in the quoted rate complete all as specified and as directed (Each Bore 60m).

All as per Serial item No. 25 here-in-before but for depth from 60 metres below ground level up to 90 metres depth Note : Each bore 30 metre

Development of trial bores by reaming for 60 metre depth from ground level complete all as specified and directed. Note : Each bore 60 metre

All as per Serial item No. 27 here-in-before but for depth from 60 metres below ground level up to 90 metres depth Note : Each bore 30 metre.

M&L for developing the tube well with air compressor as required until clear water is obtained including transportation, errection and dismantling of air compressor. Time for devloping the tube well be not less then 08 hours per borewell complete all as specified and as directed. Note : Compressor, pump, pipe and other allied items will be arranged by the contractor and quoted rate shall be deemed to be all inclusive. No extra payment admissible.

Yield test for the borewell by applying V-Notch method with continuously pumping for 16 hours to determine safe pumping yield including draw down test, verticality test and aquifier performance test and chemical including biological test from a Govt Testing Laboratory complete all as specified and as directed.

M&L for testing the chemical characteristics of water particularily for nitrite content carried out through approved Govt Lab complete all as specified and as directed.

Supply, assembling, lowering and fixing in vertical position in bore well, unplasticised PVC medium well casing (CM) pipe of 150mm diameter (Internal), minimum wall thickness 12.5mm conforming to IS 12818-2010 including fittings fittings and accessories, etc. for all depths complete all as specified and as directed.

Supply, assembling, lowering and fixing in vertical position in bore well, unplasticised PVC medium well casing (CM) pipe of 63mm diameter (Internal), minimum wall thickness 7.5mm conforming to IS 12818-2010 including fittings fittings and accessories, etc. for all depths complete all as specified and as directed.

Supply and filling pea gravel of size 3mm to 6mm for parking around the housing/assembly, slotted pipe of the bore well complete all as specified and as directed. Note : Pea gravel shall be paid as per stack measurement carried out at site.

S&F pressure gauge in pipe line 80mm dia, 0 to 10 Kg/Sq.mm including all necessary fittings complete all as specified and as directed

Supply, lowering and jointing GI pipe, heavy class column pipe as per IS-4270/2001 as amended upto date duly ISI marked, 80mm dia, 3m long, heavy grade, 6.0mm wall thickness, flage ended complete with nuts, bolts, washers and rubber gasket including groove for cable entry system and applied with two coats of black bituminous paint (food grade) on both inside and outside surfaces of pipe after preparation of surfaces complete all as specified and directed.

Supply and laying galvanised iron pipe, medium grade, 40mm dia, ISI marked with all fittings (such as bends, elbows, tees, short pieces, connectors, back-nuts, caps, plugs, unions, etc.) laying in trenches/floor/ducts and also cutting pipes, screwing, wash and for making forged bends on piping as required including welding if necessary to connect with the existing water supply system complete all as specified and as directed.

All as per Serial item No. 37 here-in-before but of size 25mm dia.

S&F 15mm bore bib cock long body with glass flange chromium plated complete all as specified and as directed.

S&F submersible pump electrically driven 415 volt, TP suitable for 150mm dia bore well, supply and install complete 5 WHP inclusive of 60m long submersible cable, starter, DB, MCB and all type of electric connection complete all as specified and as directed.

S&F cast iron sluice valve of size 80mm bore, Class PN 1.6, long body type, with brass spindle, both ends flanged with holes, ISI Marked (IS 14864-2000), including carbon steel nuts, bolts and washers, rubber gaskets, etc, with Cl wheel, fixed to water mains complete all as specified and as directed.

S&F cast iron non return valve, heavy duty, class PN 1.6 both ends flanged conforming to IS, suitable for 80mm bore pipe (horizontal type) including carbon steel nuts, bolts and wahsers, rubber gaskets, etc. complete all as specified and as directed.

S&F gate valve of size 25mm dia with brass spindle both ends flanged with holes, ISI marked (IS 14864-2000), including carbon steel nuts, bolts & washers, rubber gaskets, etc. with CI wheel fixed to water mains complete all as specified and as directed.

S&F well cap suitable for housing pipe, made out of 8mm thick steel plate duly welded with locking arrangement with holes for passing 10 sq.mm flat submersible cable complete all as specified and as directed. Note : After completion of the work the cap will be used to keep the tube well closed until the pump set is installed. NOTE:- The contract sum shall be derived by deducting the amount shown in Schedule of Credit attached to this tender from total amount of Schedule 'A'/BOQ