SPECIAL REPAIRS TO WATER SUPPLY LINES AT 31 WING AF STATION PANAGARH

Amount

M&L single pointed air termination aluminium rod 12mm dia. and 300mm long , fixed on overhead water reservoir/tank and pump house buildings complete all as specified and as directed by Engineer-in-Charge.

M&L aluminium strip of size 25mm x 3.15 mm as in roof and down conductors complete with saddles and fixing screws etc. for fitting the strip on overhead water reservoir/tank and pump house buildings complete all as specified and directed by Engineer-in-Charge.

M&L for Earthing complete with GI earth plate electrode 60cm x 60cm x 6mm thick, buried directly in ground vertically at a depth not less than 2.25m below ground level with top level of earth plate at depth not less than 1.5m below normal ground level surrounded from all sides by 15cm thick packed layer of charcoal dust and common salt filling in alternate layers and electrode connection by using GI strip 32 mm x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron and protected by GI pipe light grade 40mm bore connected to earthing test point, GI pipe light grade 20mm bore for watering and including GI sheet funnel & wire mesh, PCC1:3:6 type C2 pit/chamber with cast iron cover, including all necessary excavation and earth work, disposal of surplus soil to a distance not exceeding 50m all as specified and as shown in Electrical Plate No. 3 of MES Schedule Part-I, including testing on completion. (Notes:- (i) The unit rate shall deemed to include for GI strip from top of the earth plate up to 5m above ground level. In case GI protection pipe required is less than 5m, no price adjustment shall be made. (ii) PCC pit shall be provided at least 500 mm away from the earth pit and not just on the earth pit and extra cost of additional length of water pipes and fittings shall be deemed to be included in the quoted unit rate.

S&F Earth continuity conductor or main earthing lead of 32 x 6 mm galvanised iron strip, fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required complete all as specified and as directed.

Supply, installation, testing and commissioning of Digital Water Level Indicator comprising of a stainless steel probe unit and a digital display indicator. The stainless steel Probe Unit shall be of suitable length upto 3.0 m depth of tanks. The Digital Water Level Indicator shall have the following features/characteristics complete all as specified and directed.(Make: Satya Sai Aqua Pura Services or equivalent make as approved by GE) :- (i) The probe shall have continuous magnetic reed sensors with resolution of 10 mm, with 0-5000 ohms resistance to act as potentiometer. (ii) The sensors to be actuated by a single actuating float to give analog output based on level at any stage. (iii) Digital indicator unit, with Jumbo 5 digit Red LED 7 segment display of 100 mm each, to be connected with the Probe Unit. (iv) The unit shall have High and Low alarm to be set according to requirement based on levels indicated. (v) It should be possible to calibrate the indicator to display in percentage or litres, centimeters as required

Supply, installation, testing and commissioning LT distribution panel board, cubical type, indoor, for 25 H.P. Submersible Pump, floor mounted, factory made out of 50mm x 50mm x 6mm MS angle iron frame and 2.00 mm thick CRCA steel sheet side covers with front and back hinged doors with proper locking arrangement, rubber gasket on front and back to make it dust and vermin proof , powder coated in grey colour including 200 Amp aluminium bus-bars fixed on post insulators sleeved with heat shrink sleeve colour coated for 3 Phase, 4 wire electric supply system of suitable size to accomodate one No. incoming and one No. outgoing MCCB and painting with two coats of synthetic enamel paint over a coat of red-oxide primer complete with the following accessories all as specified and directed by the Engineer-in-Charge. (Note: LT panel board shall be mounted on PCC 1:2:4, type B-1 (with 20mm graded stone aggregate) foundation block of suitable size up to 40cm above ground level/floor level as directed. 50mmx50mmx6mm MS angle legs 200 mm long shall be provided at four corners of the panel box for securing the same in the concrete platform. The cost of the PCC block and MS angle legs shall be deemed to be included in the unit rate quoted for the item ) : -

Supply, installation, testing and commissioning LT distribution panel board, cubical type, indoor, for 7.5 HP Centrifugal Pump, Pump House building, floor mounted, factory made out of 50mmx50mmx6mm MS angle iron frame and 2.00 mm CRCA steel sheet side covers with front and back hinged doors with proper locking arrangement, rubber gasket on front and back to make it dust and vermin proof , powder coated including 100 Amp aluminium bus-bars fixed on post insulators sleeved with heat shrink sleeve colour coated for 3 Phase, 4 wire electric supply system of suitable size to accomodate one No. incoming and one No. outgoing MCCB and painting with two coats of synthetic enamel paint over a coat of red-oxide primer complete with the following accessories all as specified and directed by the Engineer-in-Charge. (Note: LT panel board shall be mounted on PCC 1:2:4, type B-1 (with 20mm graded stone aggregate) foundation block of suitable size up to 40cm above ground level/floor level as directed. 50mmx50mmx6mm MS angle legs 200 mm long shall be provided at four corners of the panel box for securing the same in the concrete platform. The cost of the PCC block and MS angle legs shall be deemed to be included in the unit rate quoted for the item ): -

Taking up 150 mm bore cast iron water mains (including all fittings), with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Supply, laying & jointing in trenches centrifugally cast(spun) Ductile iron pressure pipes with spigot and socket ends, class K-7, ISI marked as per IS:8329-2000(latest revision) - blast furnace slag cement with Portland cement properties suitable for Push- on flexible rubber gasket jointing with inside cement mortar lining , with internal metallic zinc coating and external bitumen coating complete all as specified and as directed.

M&L Ductile Iron fittings confirming to IS:9523-2000 upto 150 mm bore pressure pipes for water, gas and sewage such as bends (any type, radius and angle), tapers any type, (straight, bend, increasing, decreasing or double socket etc.), Tee pieces single branch, "Y" junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs complete all as specified and as directed.(Note: Lead/Rubber Gasket joint shall be measured and paid separately under relevant item of this Schedule.)

S&F in replacement cast iron sluice valve with tensile steel spindle and iron hand wheel(Heavy Duty), 150 mm bore size, IS: 14846-2000 marked, class PN 1.6, both ends flanged complete with 2 Nos. rubber gasket joints provided with MS bolts, nuts and washers of required size and numbers all as specified and directed.

Supply and fixing in water mains 150 mm bore size cast Iron air release valve as per IS -14845 , with two air outlet double chamber, flanged complete with all fittings & accessories all as specified and directed.

Excavation in trenches, not exc. 1.5 m wide and n.exc.1.5 m in depth, in any type of soil (soft/loose or hard/dense) for taking out pipes, laying pipes, drains etc., n.exc.10 sq. m on plan and n.exc.1.5 m in depth, and getting out, including trimming sides and forming bottom surfaces to required level/slope etc, complete all as specified and as directed by Engineer-in-Charge.

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

Removal of excavated soil to a distance n.exc.50m and depositing where directed at a level not exceeding 1.5 m above the starting point all as specified.

Supply and fixing steel tubing, 40mm bore, light grade, galvanised with all fittings , laid on roof, floor, wall for strip protection complete all as specified and directed by Engineer-in-Charge.

M&L for Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified and directed by Engineer-in-Charge.

M&L preparation of old steel surfaces of overhead tanks by sand blasting to remove the existing painting, scales, rust etc. and cleaning the surface thoroughly prior to painting, including providing all necessary scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures complete all as specified and directed by the Engineer-in-Charge.

M&L applying one coat of zinc rich epoxy primer on old/new steel surface by using the two component of paint i.e. Hardener and Resin as per manufacturer instructions, including providing all necessary scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures complete all as specified and directed by the Engineer-in-Charge (Make of Primer : M/s MYK Arment/Fosroc/Pidilite or equivalent make as approved by GE) (Note: The work shall be executed by authorised applicator of manufacturer : Rays Cleantech /Inus Water Tech/Satya Enterprises. The contractor to submit documents in support of technical qualification of the applicator to the GE for his approval before engagement on the work).

M&L applying two coats of High performance Epoxy-Coal Tar paint on internal steel surfaces of overhead tank as per manufacturer instructions, including providing all necessary scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures complete all as specified and directed (Make of Primer : M/s MYK Arment/Fosroc/Pidilite or equivalent make as approved by GE) (Note: The work shall be executed by authorised applicator of manufacturer : Rays Cleantech /Inus Water Tech/Satya Enterprises. The contractor to submit documents in support of technical qualification of the applicator to the GE for his approval before engagement on the work).

M&L applying two coats of Aqua Arm tank coat on internal/ external steel surfaces of overhead tank as per manufacturer instructions, including providing all necessary scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures complete all as specified and directed (Make of Primer : M/s MYK Arment/Fosroc/Pidilite or equivalent approved by GE) (Note: The work shall be executed by authorised applicator of manufacturer : Rays Cleantech /Inus Water Tech/Satya Enterprises. The contractor to submit documents in support of technical qualification of the applicator to the GE for his approval before engagement on the work).

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified and directed.

S&F rolled mild steel work as in plates (plain or chequered) for panels of overhead tanks, channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment as in plates for panels of overhead steel water tank, properly jointed with welding or riveting and similar items/articles conforming to Fe.410-W,Gde-E-250 quality A all as specified and directed.

S&F mild steel framed work such as grills, gratings, etc.. with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework of overhead water tanks and similar work conforming to Fe-290, Gde-E-165 complete all as specified and directed.

Supply only integral water proofing compound (ISI marked) complete all as specified.

M&L cutting out grooves or rebates as required and trimming surface and forming 'V' shaped grooves in concrete with or without reinforcement etc., cleaning out, wetting , grouting the entire 'V' shaped grooves with cement admixed with quick setting compound complete all as per manufacturer instructions , including use of scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures complete all as specified and as directed by the Engineer-in-Charge.

M&L wire brushing , cleaning the surface , grouting cracks in concrete using quick setting compound admixed with cement using PVC nozzles at a spacing of 1.00 m, injecting the cement mixture with interplast EP through the nozzle by high pressure injection pump, complete all as per manufacturer instructions , including use of scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures complete all as specified and as directed by the Engineer-in-Charge.

M&L applying two coats of Tank Epoxy Coating 200 micron thick (potable water grade) on the inner walls and base surfaces of RCC overhead tank of any staging height, including use of scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures all as per manufacturer's instructions complete all as specified and directed.(Make : MYK Arment/ Fosroc/Pidilite / equivalent approved make as directed by GE.) (Note: The work shall be executed by authorised applicator of manufacturer : Rays Cleantech /Inus Water Tech/Satya Enterprises. The contractor to submit documents in support of technical qualification of the applicator to the GE for his approval before engagement on the work).

M&L complete removal of existing treatment of RCC overhead tank surfaces including RCC staging , bracings, circular columns etc. and applying two coats of exterior emulsion paint ( fungal proof) over a coat of alkali-resistant priming paint after necessary preparation of surfaces, including use of scaffolding, trestles, ladders, cradles, etc. necessary for execution of work and protective measures all as per manufacturer's instructions complete all as specified and directed.

M&L for running welding in repairs, thickness of metal n.exc. 6 mm including all necessary cleaning and preparing the surfaces to be welded together, holding the members in true position while welding and bevelling edges, as required, all as specified and directed by Engineer-in-Charge.

M&L welding in repairs to steel works of thickness exc 6 mm but n.exc. 9 mm and n.exc. 2.5cm in length including all necessary cleaning and preparing the surfaces to be welded together, holding the members in true position while welding and bevelling edges, as required, all as specified and directed by Engineer-in-Charge.

M&L preparation of old painted surfaces of steel and iron work of any description, over 10cm in width or girth,not otherwise described with steel wire brushing etc. in Overhead tanks of any staging height including all necessary scaffolding, jhoola etc and applying two coats of aluminum paint over a coat of red-oxide primer complete all as specified and directed by Engineer-in-Charge.

M&L preparation of old painted surfaces of steel and iron work of any description, over 10cm in width or girth, not otherwise described with steel wire brushing etc. at any height including all necessary scaffolding, cleaning etc and applying two coats of aluminum paint over a coat of red-oxide primer complete all as specified and directed by Engineer-in-Charge.

M&L preparation of old painted surfaces of steel and iron work of any description, over 10cm in width or girth,not otherwise described by complete removal using steel wire brushes, cleaning etc. in Overhead tanks of any staging height including all necessary scaffolding, jhoola etc and applying two coats of synthetic enamel paint over a coat of red-oxide primer complete all as specified and directed by Engineer-in-Charge.

M&L preparation of old painted surfaces of steel and iron work of any description, over 10cm in width or girth, not otherwise described with steel wire brushing etc. including all necessary scaffolding, cleaning etc at any height and applying two coats of synthetic enamel paint over a coat of red-oxide primer complete all as specified and directed by Engineer-in-Charge.

M&L cutting upto a depth of 10 mm into Overhead tank concrete walls and trimming surface as required with or without reinforcement etc , girth exc. 30cm complete all as specified and directed by Engineer-in-Charge.

M&L rendering 10 mm thick on fair faces of brick work or concrete surfaces of overhead tank walls in cement mortar 1:3 and surfaces finished even and smooth without using extra cement complete all as specified and directed.

M/S BISWAS AND KUNDU CONSTRUCTION

ROY ENTERPRISE