REPAIR / MAINTENANCE OF WATER SUPPLY INSTALLATIONS AND CONNECTED WORKS AT AF STN ADAMPUR

Amount

Excavation in trenches in soft/loose soil not exceeding 1.50 metre wide and not exceeding 1.50 metre in depth; for taxi track,PCC path / road / laying for pipe line etc. not exceeding 10 sqm on plan and getting out complete, all as specified.

Returning filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick each, after the pipes have been laid and tested complete, all as specified.

Removing excavated spoil to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point complete, all as specified.

NOTES APPLICABLE TO SERIAL ITEM 1 TO3: (a) Excavation work shall be carried out manually only. (b) LT/HT cable, water supply/ sewage/telephone lines, if any, get damaged during excavation & earthwork, demolition of PCC shall be repaired by the contractor immediately as per existing specifications to the entire satisfaction of Engineer-in-Charge.

Cleaning of RCC over head tank draining out water / sludge from tank, removing all scales, dirt , algea and other growths from the floor, roof and from mouths of circulating pipes by rubbing with the wire brushes and high pressure cleaning method with rotary sets with approved detergent and sucking out all dirty water by vacuum cleaner, disinfecting the over head tanks with approved chemical solution for making surface bacteria free and finaly cleaning with fresh water to the satisfaction of Engineer-in-Charge including painting MS plate manhole covers suction pipe rugs etc with anti corrosive paint and writing outside tank as ''TANK CLEANED ON'' and capacity on black painted surface including removing all dirt outside MD land complete of following capacity and staging: -

10000 gallon staging up to 15 metre height.

15000 gallon staging up to 15 metre height.

20000 gallon staging up to 20 metre height.

150000 gallon staging up to 20 metre height.

25000 gallon staging up to 25 metre height.

50000 gallon staging up to 25 metre height.

150000 gallon staging up to 25 metre height.

Dewatering and cleaning of sewage well / drainge water well any type any shape including removing of dirty muddy / sewage / drainage water along with unwanted nonperishable items i.e polythene bags, PVC scrap, PVC bottles, shells, gum boots, wooden pieces and other floating materials etc and including removing complete wet type sludge formate / wet muddy formate from the inside of under ground well / tank and also connected entrance chamber area & hole area of well any type / size / depth and clean up to the last bottom level of well complete with all respect and disposal out / carrying out by manually or mechenically system to the wet sludge / muddy formate along with all type off floating material burried / carry out outside MD land complete for under ground well sump of size:-

6.5 dia and 6 metre depth.

1.5 dia and 5 metre depth.

NOTE APPLICABLE FOR SERIAL ITEM 4 & 5:- (i) All required T&P for cleaning of RCC over head tank / under ground sewage, water sump and other safety equipment required for working of manpower shall be arrange by contractor under own arrangement without any extra cost to the Dept. (ii) The contractor shall soley responsible for any mishap,accident and other mishappening to workmen during working time and setting all claims of workmen as per the labour commissioner or court law and the rates quoted by the contractor shall deemed to be included for this aspect and nothing extra shall be payble on this account. (iii) The contractor provided sufficient more nos labour for cleaning of overhead tank under ground sump within the given time period by department. No such type of delay reason are not accepted due to shortage of labour for cleaning of over head tank / under ground sump.

Chemical analysis including micro biological examination of water sample obtaining from bore well at pump house No-1 to 12 under GE (AF) Adampur. Collect the sample as per standard operating procedure from bore well as chemical and microbiological as per the IS specification. NOTE:- (i) The complete analysis report should be submitted within specific period. (ii) Bore well should be test by NABL approved lab as approved by GE.

Cast Iron butter fly valve wafer Type, class PN 2.5 with S.S-304 disc, body S.G iron, lever operated, Nitrile / EPDM rubber lining seat test pressure 2.5 Mpa, ISI marked , IN REPLACEMENT complete. of size: -

80mm dia

150mm dia

Writing the letter inlet, outlet and washout decription on the existing CI / GI pipe at over head tank including scraping and preparation the existing surface and applying two coats of black, blue, Red, Yellow colour synthetic enamel paints complete.

Wire antina with lead system suitable for signal operation of scada automation slave panel IN REPLACEMENT complete.

Buzzer system with base electrical connector suitable for showing to fault level of scada automation slave panel IN REPLACEMENT complete.

Presuure switch 0-10 kg/Sq.cm with accessories and calibrate with PLC (Programmable Logic Controller) IN REPLACEMENT complete.

Maintenance and minor repair, conditioning of the communiction parts, and establishing communication system, including and maint and controling of the PHs through individual PLC based slave panels and overall control through PLC based master panel complete.

PLC (Programmable Logic Controller) with connected power supply system with controller lead complete as per existing model for automation slave panel comprising of main controller, including testing complete.

Reprogramming of Automation slave panels installed at pump house for scada system as per existing system for smooth controlling panel of scada system including resetting of system complete.

HMI-GT 21 series 3.8'' TFT monochrome, TFT LCD with 32 grey scale 24 vdc built in, RS232, RS-485 USB port interference for PLC based panel IN REPLACEMENT, including re-programming & testing.

NOTES APPLICABLE TO SERIAL ITEM 14 TO 16. Downloading and uploading of the PLC programs carried out only in the presence of Recktronic device & system / Automation and Tech solutions or Integrated control system as approved by GE.

Relay pin type 4C/O IN REPLACEMENT complete, as per existing model & compatibility of size: -

220-240 volt AC

24 volt DC

LED indicating lamp of colour red / green / yellow as per exiting sample / size IN REPLACEMENT complete all as specified

LED indicator with push button red / green type -240 Volt Ac as per exiting sample / size IN REPLACEMENT complete .

Rust proof maintenance free magnetic float switch / water level sensor as per exiting sample / size IN REPLACEMENT complete.

Hand wheel for actuator suitable for of size 150mm bore butterfly valve as per exiting sample / size IN REPLACEMENT complete.

SMPS unit suitable for out put 24 volt DC and input 230 volt AC of rating 3 Amp as per exiting sample/ size IN REPLACEMENT complete .

Motor actuated valve (Direct) complete single phase motor actated with gear box valve set with disc material of CI with nylon coating, hand wheel for manual operation, pressure rating of 10 kg/sq cm and having 02 nos limit switches for open / closed condition and capability of accepting 4-20 amp input, IN REPLACEMENT, complete set. of following size: -

80 mm bore

150 mm bore

Motor actuated valve (Indirect) complete single phase motor actuated with gear box valve set with disc material of CI with nylon coating, hand wheel for manual operation, pressure rating of 10 kg/sq cm and having 02 nos limit switches for open / closed condition and capability of accepting 4-20 amp input , IN REPLACEMENT,complete set. of following size: -

80 mm bore

150 mm bore

Defected/ burn out /unsafe internal control wiring and connection for automation slave panel installed at pump house and including using by FRLSH PVC insulated electric wire with copper conductor wiring having of single core of size 0.5 - 1.0 Sq. mm sub main wiring as properly electrical connection for smooth controlling panel of scada system including resetting of system complete and testing IN REPLACEMENT complete. MAKE:- Recktronic device & system / Automation and Tech solutions or Integrated control system as approved by GE.

5 pair of 0.5 mm dia armoured copper cable suitable for sensoring with suitable size of PVC conduit pipe as per exiting sample/ size duly fixed on wall of over head tank IN REPLACEMENT complete.

PVC sheathed PVC insulated copper armoured cable IN REPLACEMENT complete all as specified of following size: -

1.5 sq.mm 2 core

1.5 sq.mm 4 core

1.5 sq.mm 6 core

Earthing with and including GI earth plate electrode 6 mm thick of size 600 mm x 600 mm with 25 mm x 4 mm GI strip earthing lead complete all as shown in electrical plate No. 3 and as specified in Particular Specifications of contract, IN REPAIRS.

NOTES: - (i) The unit rate includes earthing lead and protection pipe upto 7.5 metre from top of earth plate. (b) Factoy fabricated precast PCC pit & cover shall be fixed at least 500 mm away from earth pit. (iv) Earth resistance should not be less than 3Ohm. In case the test results are not found below 3 Ohm, complete earthing will be redone without any extra cost to Govt.

Galvanised iron strip 25 mm x 4 mm with new saddles and fixing screws on porcelain insulators for roof conductors and down conductors above ground level and in trenches fixed IN REPLACEMENT complete.

Air termination single pointed copper rod of dia 12mm and 300 mm long including making connection to earthing conductor IN REPLACEMENT complete.

Taking down coloumn pipe at sewage well / drainage water well any description any depth and size including removing the unwanted, non permisible items from non clog pumps and valve and disposal out manually or mechanically system and Re-fixing original position & commissioning and testing the same after removing, jammed particles etc complete.

NOTE : Amount of credit for retrieved materials is mentioned in tender documents in pdf form which will be deducted while acceptance of tender offline.

PRATHAM TRADERS

M/s Sahib and Company

ELECTRA ENGINEERS

M/S GURBACHAN SINGH

AAR KAY BEE ENTERPRISES

Northern cable fault locatoers

MALHOTRA AND ASSOCIATES