Providing, installation, testing and commissioning of 50,000 GPH x 150 mtrs. Head HC pumpset along with allied works at CPS Bantalab under State Capex Budget

Amount

Providing, installation, testing & commissioning of HC pump set having specifications 50000 GPH x 150 Mtrs. Head along with allied works at CPS Bantalab. Providing of HC pump set having specifications 50000 GPH x 150 Mtrs. head coupled with low-speed squirrel cage motor, along with base plate, coupling, coupling guard and other allied accessories. Laying of RCC foundation block: Dismantling of existing foundation block for making space for installation of new pump set by way of using manual labour and tools and tackles as per site requirement. Laying of RCC foundation block for HC pump set by way of laying of stone masonry up to height of 6’ before laying of RCC foundation block, providing and laying of reinforced cement concrete in mixture of 1:2:4 ratio with requisite reinforcement by using 12 mm dia. steel with centre to centre spacing 6” mesh including form work, sand, aggregate and plastering and finishing with form work as required. Providing and fixing of 25 mm dia. x 1 meter long 8 Nos. foundation bolts fabricated out of MS round having 150 mm long threading on one side and other side forming “J” shape. Properly placing of foundation bolts in position along with base plate and properly anchoring the bolts with steel mesh by welding with special welding electrodes. Providing form work in position as per requirement. Filling of cement sand aggregate in the ratio of 1:2:4 in the foundation block. The job includes complete plastering and curing of the foundation block. The job includes cost of material, labour, form work and curing. Installation: Servicing of HC pump set in workshop. Job includes carriage to workshop, dismantling of pump, polishing of shaft, setting of gland-packing etc. Checking of motor by way of dismantling the motor, varnishing of motor, greasing of bearings, drying with hot air blower. Placing the pump and motor on the base frame by using crane, skilled manpower and other tools and tackles. Levelling of pump and motor properly making alignment of the pump and motor on base frame and fastening with base frame after providing and fitting of superior quality hexagonal fasteners with washers. Suction line: Providing, fabrication and laying of ms suction pipe line to pump of suitable dia by providing of pipe, fabrication of bends and flanges as per required lengths and quantity and welding jointing of flanges with existing pipe then providing and fitting of CI sluice valve. P/F of flanges, jointing material, industrial gases, welding rods etc and labour charges for earth work excavation, to and fro carriage of tools tackles material and their manual handling etc. Delivery line: Providing, fabrication and laying of ms delivery pipe line to pump of suitable dia with providing of pipe, fabrication of bends and flanges etc. Providing and fitting of sluice valve, reflex valve etc. and making inter-connections with the existing rising manifolds including cost of material required. Complete job includes cost of material like Sluice valve and reflex valve each, bends along with other fitting materials. Painting: Scratching of rusted portion by emery papers on both newly laid suction and delivery pipes and making an even surface for painting of the pumping equipment. Painting of all the suction, delivery pipes with one coat of red oxide and then painting of all the pumping equipment with two coats of synthetic enamel i.e. suction delivery, sluice valves, reflux valve etc. Job including cost of material and labour charges. (Complete job). Complete job including cost and carriage of materials i.e. HC pump along with motor and allied accessories, laying of block along with material and labour, ms pipe for delivery and suction lines along with fabrication of bends, flanges, valves etc. painting of delivery and suction lines, installation of pump set and testing on full load. Complete job. Carriage and Servicing: LT Control Panel: Design, fabrication, installation, testing and commissioning of LT control panel with built in fault analyzer suitable for running 250 HP motor. The panel should be dust and vermin proof fabricated out of 14/16 SWG CR sheet and provision for fixing it on the wall or on the ground with the help of anchoring bolts should be made. The panel should be sturdy enough for vibration free operation and should be equipped with suitable locking / sealing arrangements. The structure should be provided suitable entry and exit holes for incoming and outgoing cables. The panel is to be given two coats of anti-rust primer and two coats of steel grey enamel paint. The panel should have equipped with following components / features: - 1. The panel should be fitted with 630 Amps MCCB and a set of RYB indicators at incoming side. 2. Star delta starter: - The panel should be fitted with starter comprising of 2 no. air break contractors, 1 No. MNX 400 contactor for main and 1 no MNX 325 contactor for delta supply and 1 No. MNX 400 Air break contractor for star operation, 1 no. timer for changing over the supply of motor from star to delta, 2 Nos. push buttons for start and stop operation of motor. 1 No. MCB 2 Amps. for the protection of internal control wiring. A neat and clean internal control wiring should be made with flexible, copper cables to complete the star delta circuit of outgoing supply. (Contactors used should be of L&T / Siemens / Schneider Make) 3. Protection devices: - The panel shall be fitted with 1 No. bi-metallic relay and 1 no. fault analyzer so as to protect the electrical equipment’s from the following faults: - i) Voltage related faults: - Single phasing, under voltage, over-voltage, unbalanced voltage. ii) Current Related faults: - Over current / load, dry running, unbalanced current / load, earth leakage, short circuiting. The panel shall also be provided with ammeter and voltmeter of appropriate capacity. Testing: Providing and fitting of copper cable of suitable current carrying capacity to be laid between voltage stabilizer and control panel (3 leads of 10 mtrs. each approx.) and from control panel to motor (6 leads of 5 mtrs. each approx.) along with thimbles as of required current carrying capacity. Making of all the electrical connections and testing the running of motor on no load then coupling the motor with pump by way of matching both the pulleys after providing and fitting of coupling bolts with rubber bushes then testing and commissioning on full load condition after ensuring the necessary incoming of water from suction line to the impeller after removing the air lock by operating the air vent valve. All the mechanical jobs shall be performed by skilled technicians and electrical jobs by skilled electricians. Complete job including cost and carriage of materials i.e. pump, motor, LT Control Panel, laying of delivery and suction line, valves, cables etc and labour charges.

Rishabh Electricals and Mechanical Works

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