CLEANING OF OHTs AND MAINT REPAIR OF DELIVERY PIPE LINE AND ALLIED WORKS AT WATER SUPPLY INSTALLATION UNDER GE (WEST) FEROZEPUR CANTT

Amount

Mechanized cleaning and disinfection of OHT with six stages processes mechanical dewatering, distillery and remove of left over dirty water sludge, clean the wall, roof and floor from 10000 gallons to 2 lacs gallons capacity upto 45 meter stagging with the following stages:- Stage - I Mechanized dewatering - mechanized dewatering should be done by submersible dewatering pump having, suitable outlet and discharge and control panel. The details of motor cable, seal, material of construction and control panel should be furnished. Stage – II Sludge removal – desilting and removal of left over dirty water sludge with a sludge removal pump. Stage – III High pressure cleaning – cleaning of wall, ceiling, and floor by high pressure of 80 bars-180 bars. Cleaning should be done by high pressure cleaner with following specification fully automatic controlled, auto start –slope, imported high pressure cleaning machine having F-Class insulation protection. The heavy duty machined should be operated by HPC operator, on continuous duty in variable fully adjustable mode from working pressure of 100 bars-180 bars. The machine should have imported twin steel core protection rubber high pressure hose to safety. With stand operating pressure of 250 bar, and two cleaning lances, one with rotary jet and the second one, a flat jet for effective drinking water tank operation.

Stage – IV Vacuum cleaning – removal of remaining sludge from the floor with the help of industrial vacuum cleaner. (A) Removal of remaining sludge with the help of imported heavy duty industrial vacuum cleaner and sludge sucker having maximum power of 1200 watt, with suitable heavy duty motor. (B) Imported sludge sucker should be a part of the high pressure system which sucks sludge and through the same out of the tank, he must handle solid particles as well. STAGE – V Anti-bacterial Spray – Spring of non-toxic-biodigrable, ecofriendly anti-bacterial agent to disinfect the tank from all harmful pathogens. The dose utilized should be safe as per WHO guideline. STAGE – IV UV Radiator–treatment of inside of tank by exposing UV radiator to kill further suspended or floating bacteria if any treatment of inside tank be done by exposing UV radiation by imported heavy duty UV radiator. The radiator should be designed in away to ensure 360 degrees of sterilization and should have suitable lamps for effective sterilization for a period of 8000 working hours, the radiator must be totally portable and effective for final sterilization of drinking water tanks for elimination of floating and suspended bacteria.

Notes :- i. Contractor must clean and disinfect the water storage tank within 24 hours after giving the site by Engr-in-Charge to avoid the inconvenice for distribution of water supply to the connected areas. ii. In case of any accident during the work in progress the contractor will be fully responsible to give necessary medical aids and also compensate to worker under compensation act 1923. iii. No extra payment will be made for transportation of any machinaries required for cleaning and disinfecton of storage tank iv. Contractor must arrange the videography during the work in progress and submit the CD in 2 copies to Engr-in-Charge and the cost shall be deemed included in quoted rate. v. Contractor must write the date of cleaning and capacity of tank at the wall of the storage tank in size of 2 feet x 2 feet base prepared by enamel paint. Base should be in light blue colour and letters should be white colour and the cost shall be deemed included in quoted rate. vi. While execution the work contractor must have all safety equipment and follow all safety parameters at site.

Supply only first aid kit box having following items : 1) Alcohol or non alcohol antiseptic wipes, Band-Aids, Cotton Balls, Cotton Swabs, Iodine, Bandages, Hydrogen Peroxide, Gauze, Saline, Dressings, Adhesive bandages, Moleskin, Gloves, Goggles, Surgical mask, Apron, Trauma shears , Alcohol rub, Thermometer, Space blanket, Penlight, Paracetamol complete all as specified and directed.

S&F Fire Extinguisher (Stored Pressure type) capacity 04 Kg duly ISI marked conforming to IS: 15683:2006, with IS 14609, ISI marked DCP (Dry Chemical Powder) complete with squeeze grip release valve, discharge pipe, locking arrangement, pressure gauge, operation manual and bracket. Operating Temperature: - 10ºC to + 55ºC. Make: Cat part No Cf-001545 of Ceasefire or techno commercially equivalent in approved makes

S&F MS Stand made of M.S. Angle for Hanging and including 4 Fire Bucket and two fire extinguisher including painting of one coat of red oxide primer paint and two coats of P.O. red enamel ISI mark paint with Canopy made of MS sheet for protecting it from rain complete all as specified and directed.

Supply only fire bucket steel complete all as specified and directed.

Supply only fire hook with bamboo approx 5 m complete all as specified and directed.

Supply only fire beater with bamboo approx 5m complete all as specified and directed.

M&L Air Termination, Single pointed, Copper rod 12mm dia and 300 mm long complete fixed on the middle top of OHT on the four insulator frame made out of flat copper earthing strip of size 25mmx4mm complete all as specified and directed.

M&L test point terminal block made of gun metal or Phosphorus Bronze size 75mmx75mmx25mm drilled and screwed including 3 Nos 8 mm dia 25 mm long hex head screw fixed on the column of OHT at the height of 4 feet from the ground level upon the four insulator frame made out of flate Copper earthing strip of size 25mmx4mm complete all as specified and directed. Note :- The terminal shall be covered with SS box of suitable size with provision of lock and key. The quoted rates shall deemed inclusive of the charges for the same.

M&L Copper strip 20mmx3.15mm with saddles and fixed screws etc for roof conductors and down conductors above ground complete fixed with porcelain insulator at the interval of 1m complete all as specified and directed.

M&L earthing complete with Copper earth plate elecrode of size 60cm x 60cm and 3.15mm thick burried directly in ground vertically to a depth not less than 2.5m below the ground level with top edge of earth plate at a depth not less than 1.5 mtr below ground level. Earth plate surrounded by 15mm thick packed alternative layers of charcoal dust and comman salt, earth lead Copper strip 20mm x 3mm by means of bolts, nuts, check nuts and washers of copper with thimbles all as shown in electrical plate No 3 connected to earthing test point all as specified or indicated including testing on completion complete. The earthing strip shall be protected by light grade GI pipe of 25 mm bore and provision of 20mm bore light grade GI pipe for watering including GI funnel and wire mesh. Pipe shall be provided vertically upto top level of earth pit and then taken horrizontally to the earth pit. Cement concrete chamber of PCC 1:3:6 type C-2 (using 40 mm graded stone aggregate).The chamber shall be constructed one metre away from edge of earth pit. 50 mm thick pre cast cover of cement conrete 1:2:4 type B-1 (using 20 mm graded stone aggregate), excavation in soft / loose soil, returning filling and removal of surplus soil to a distance of 50 mm as directed and shown in Electrical Plate No- 3 of SSR Part-1 (2009).

S&F Aluminium frame display board of size 4 feet x 2 feet made out of synthetic fibre and PU foam for laying out the SOP, Duty roster, SOP of submersible pumpset, Fire order, SOP for chlorination etc complete all as specified and directed.

DHAWAN CONSTRUCTION COMPANY