MAINT AND CLEANING OF RCC OH TANK, UG SUMP AND REPAIR REPLACEMENT OF WATER LEVEL INDICATOR AT AFS TEZPUR UNDER GE(AF) TEZPUR

Amount

M&L for seven stage cleaning and sterllization inside the existing RCCoverhead tank of capacity 100000 gallon through bacteriological treatment by using E-In-C Branch approved chemical as recommended by Engineer-In-Charge and ULTRA VIOLET R at Pump House No- 1A, 4 & 5 at any height (as per site requirement), including suitable staging Seven stag are as under follows :- (a) First stage is to drain out the water by using high capacity pump of dewatering system. (b) Second stage is cleaning all the stage formation inside the tank by using TERBAC G5 E-In-C`s Branch approved chemical as recommended by Engr-In-Charge. (c) Third stage is scrubbing the wall and floor with mechanised scrubber & fresh water cleaning by high speed jet pump (rotary & flat) to remove all scalling, angle and other formed particles on internal surface of the tank completely. (d) Fourth stage and first and first bacteria screening is de-gemification by using TERBAC G5 E-In-C`s Branch approved chemical as recommended by Engr-In-Charge (e) Fifth stage is cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker having maximum 1200W with suitable heavy duty rugged motor to free of any foregn and loose particles of any nature. (f) Sixth stage is the second bacteria screening and sterillizing method by using ultraviolet ray by heavy duty UV radiation which shall be 360 degree of sterillization with in the tank to kill all suspended bacteria (The radiation shall portable and effective for sterillzation of drinking water tanks for dimination of floating and suspended bacteria). (g) Seventh stage of cleaning and third bacteria screening is to sterillize the floor and wall of the water tank by using laboratory certified branded strong oxidizing agent TERBAC G65 of MES Ray`s clean tech or equivalent any not-toxic bio-degradable eco-frindly anti-bacterial agent certified by a Govt approved laboratory to disinfect the over head tank from all harmful pathogens. Note :- (i) All safety equipmentsd required and necessary insurance for safety of working labour to execute the work is responsible of the Contractor. (ii) Contractor will complete the work within 12 Hours of OHT.

All as per items No 1 here-in before but overhead tank of capacity 50000 gallens at pump house No 2, 2A, 07, & 8 complete all s specified and as directed.

All as per items No 1 here-in before but overhead tank of capacity 20000 gallens at pump house No 6 complete all s specified and as directed.

All as per items No 1 here-in before but fountain of capacity 10000-15000 gallens complete all s specified and as directed.

S&F earth continuity conductor or main earthing lead fixed to RCC Column as required Aluminium Strip 25x3mm and inlcuding taking down or up old galvanised iron strip/Aluminium strip any size and different locations complete all s specified and as directed. Note :- All safety equipment required and necessary insurance for safety of working labour to execuite the work is responsible of the contractor.

S&F in repair single pointed air termination aluminium rod, 12mm dia, 300mm long fixed to existing base plate with necessary arrangement such as welding work, Nut bolt and washer to fixing the termination rod complete all as speciied and as directed. Note :- All safety equipment required and necessary insurance for safety of working labour to execuite the work is responsible of the contractor.

M&L as in repair earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6mm thick, buried directly in ground, vertically to a depth not less than 2.25 mtr deep below ground level with top edge of the earth plate at depth not less than 1.5 mtr below ground level earth plate surrounded by 15 cm thick and packed layers of charcoal, dust and common salt, earth lead GI strip 32x6mm dia by means of bolts, nuts, check-nuts and washers of galvanized iron and thimbles and of earth wire protected by galvanized iron pipe light grade 15mm bore and water pipe 20 mm bore GI medium grade with funnel and wire mesh complete including excavation and earth work, RCC chamber and cover in cement concrete 1:2:4 type C-1 using 20 mm graded stone aggregate etc all as specified and shown in electrical plate No. 3 of SSR-2009 (Part-I) complete all s specified and as directed.

S & F in repair MCB DB Single pole and neutral 2 way sheet steel phospetised powder painted with 200 amps rated bus bar 240 V nautral link, earth bar and Din rail double door complete all s specified and as directed. Make: L&T / BCH / ABB / Siemens/Schnieder/Havells/ Legrand/Indo asian

S&F in repair FRP scale conventional water level indicator complete with FRP scale, MS Fabricated scale holding frame, FRP/GI Float, wire, Float guide pipe, bracket & Pulley, counter weight , indicator pin, etc complete all s specified and as directed. Note :- All safety equipmentsd required and necessary insurance for safety of working labour to execute the work is responsible of the Contractor.

S&F in repair integral LED aviation obstruction light lumineries comprising of aluminium housing with polycarbonate enclosure including making connection complete all s specified and as directed. Make : Bajaj Cat No BGAV 302 LED Aviation Light Luminaries. or equivalent make and model No. of Havells/Philips/Jaquar. Note :- All safety equipmentsd required and necessary insurance for safety of working labour to execute the work is responsible of the Contractor.

S&F for two single core PVC insulated unsheathed cable 2.5 sqmm (Nominal aera) with multistranded copper conductor cable, 1100 volts grade, drawn into PVC casing capping / conduit with accessories and continious earth wire of single core PVC insulated, unsheathed cable 2.5 sqmm (Nominal area) with ultistranded copper conductor (green), 1100 volts grade for sub main wiring including taking down old unserviceable sub main wiring of any size and making good disturbed surfaces complete all as specified and as directed.

Supply only Alum Ferric Acid Grade 4 (Best quality as per sample with additional reqmt for purification of water containing lead (as Pb) 30PPM max and arsenic (As 203) 6 PPM max confirming revised IS 299-2012.

Desilting/ cleaning of sewage storage well of depth 12.00 Mtr and 9.00Mtr dia taking out sludge in the form of solid manually and getting out and removal to a distance n. exc 500 mtr and burried the same in low laying area complete all s specified and as directed.

Lifting up the submersible motor and pump by disconnecting star delta connection from starter with the help of chain pulley and disconnection the GI colum pipe by opening nut and bolts and replacement of old rusted GI Column Pipe heavy grade of size 100 mm dia in pieces of 3.3 meter long, both ends flanged in the bore/open wells and joining the GI column pipe by providing 5mm thick rubber gasket, nuts and bolt and lowering down pump set with the help of chain pulley , connecting electrical star delta connection to starter, testing complete all as specified and directed.

M/S L N ENTERPRISE