CA NO. GE (I) (AF)/SHL/ OF 2020-2021 REPAIRS AND MAINTENANCE OF CENTRAL HEATING SYSTEMS FOR CERTAIN TECH ACCN AND REPAIRS TO EXHAUST FANS AT HQ EAC(U) AF UNDER GE(I) AF SHILLONG

Amount

Note : All unserviceable materials obtained out of demolition/dismantling/taking down (other than those for which credit catered under Schedule of credit) shall be disposed of outside MoD Land. Quoted rates against respective item shall deemed to include for same.

M & L for complete overhauling and servicing of AIR HANDLING UNITS of following capacities at various locations and to carry out following activities:- (a) Thorough/detailed examinaton of AHU including ducts in plant room and connected accessories and preparing list of defects and spares/components to be replaced. (b) Thorough cleaning of AHU including ducts in plant room by compressed air system / vacuum cleaner. (c) Thorough cleaning of AHU including ducts in plant room by using mild detergents and water spraying and drying the complete system. (d) Preparing old steel surfaces including motor, filter frames, grills, external and internal body of AHU, duct of AHU in plant room and spray painting in two coats using synthetic enamel paint of approved colour. (e) Replacing unserviceable spares/components. (e) Oiling/Greasing/Lubricating of various parts for smooth functioning. Notes : (a) Cost of labour for replacement of new spares/component shall be deemed to be included in quoted rates. (b) New spare parts/components shall be measured and paid as Supply only under respective items of BOQ here-in-after. (c) Cost of cosumables like Oil/Grease/Lubricants shall be deemed to be included in quoted rates.

Capacity 54 KW

Capacity 72 KW

Capacity 84 KW

Capacity 110 KW

M & L for dismantling shaft of AHU plant, transporting to workshop, re-metalling, grinding, machining on lathe and other machines to bring the same in size to fit with bearing for proper functioning, transporting back to AHU plant and re-installing/ commissioning the shaft & pulley with proper alignment complete all as specified and directed.

Supply only heat proof porcelain insulator with suitable size nuts/bolts & washers as per sample.

Supply only V-belt of type B-84 to B-95 as per existing size

M & L for disconnection of electric connection, dismantling the Blower Motor 3 to 5 HP from the base/pulley/shaft, thorough/detailed examinaton of motors and preparing list of defects and spares/components to be replaced, replacing unserviceable spares/components, complete servicing/overhauling and re-assembling of motor, oiling/greasing/lubricating of various parts for smooth functioning, checking for proper alignment, re-installing the same, making necessary terminal connections with proper copper lugs & proper alignment of pulley and testing and commissioning complete all as specified and directed for following capacities blower motors:-

Blower motor of capacities 3 to 5 HP

Blower motor of capacities 15 HP Notes for item Nos 5.10 & 5.20 (a) Cost of labour for replacement of new spares/component shall be deemed to be included in quoted rates. (b) New spare parts/components shall be measured and paid as Supply only under respective items of BOQ here-in-after. (c) Cost of cosumables like Oil/Grease/Lubricants shall be deemed to be included in quoted rates. (d) Rewinding of motor if required shall be measured measured and paid under respective items of BOQ here-in-after.

Supply only following spares/components of blower motors :-

Ball bearing of size 6205/or nearest size as existing in motor.

Ball bearing of size 6410/or nearest size as existing in motor.

Cooling fan suitable for 3 to 5 HP motor as per existing model.

Cooling fan suitable for 15 HP motor as per existing model.

M & L for rewinding of Blower motor (induction type) with super ennameled copper winding wire of existing size and turns, insulator paper fixing, coil fitting, varnishing, baking, including cleaning of grooves of stator, replacement of terminal box (6 terminals), connection etc, testing and commissioning complete all as specified and directed for following capacity motors :-

Motor Capacity 3HP

Motor Capacity 5HP Notes for item Nos 7.10 & 7.20 (a) Dimantling and re-installation of motors shall be deemed to be included in quoted rates against item Nos 5.10 & 5.20 here-in-above. (b) Cost of rewinnding and other scope as described in item shall be deemed to be included in quoted rates against this item.

Taking out old unserviceable strip heater fins type and Supply & Fix strip heater fins type for working on 230 Volts, AC, 50 Hz supply of approximate size 0.85m x 0.9 m fixed with suitable nuts bolts etc complete all as specified and directed for following capacities:-

Capacity 2 KW

Capacity 3 KW

S & F in replacement pedestal type ball bearing of type UC-207-20 or suitable for shaft complete

M & L for cleaning the fresh/suction air filter (60X50cm) first by vacuum cleaner, then by compressed air and subsequently by mild detergent based solution complete all as specified and directed

Supply and fixing in replacement fresh/suction air filter (60X50cm) of large airflow and of huge dust holding capacity with low initial pressure drop and cleanable/washable type fixed with Air handling unit all as per sample at site, complete all as specified and directed.

Supply and fixing in replacement of two groove cast iron/Mild Steel V belt shaft pulley of 20 cm radius/existing size suitable for mounting two belts complete all as specified and as directed.

Taking out old unserviceable Mild Steel air grills and Supply erection testing & commissioning of powder coated adjustable type Mild Steel air grills of Size (40 x 25 x 11 cm outer flange) with nuts, bolts & screws complete all as specified and as directed.

S & F in replacement sheet metal enclosure single door DB SPN 2 way, 240 volts, protection class IP-43 made out of CRCA mild steel sheet surface with epoxy powder coated surface confirming to IS-13032, IS 8623, BS-5484 all as specified and directed.

S & F in replacement MCB SPN 63 Amps, 240 volts, C-curve, rupturing capacity 10KA conforming to IEC-60898, Part-I, complete, all as specified & directed.

Taking out old unserviceable PVC insulated & PVC Round Sheathed 3 core 10 Sqmm cable from any situation and Supply and fix/lay PVC insulated and FR PVC Round Sheathed, Copper Conductor (flexible) industrial cable, 1100 Volt, conforming to IS 694 complete all as specified and directed.

Taking out old unserviceable PVC insulated & PVC unsheathed lead glass coated single core 10 Sqmm cable from any situation and Suuply and fix/lay PVC insulated & PVC unsheathed lead glass coated thermal stable single core 10 Sqmm multi stranded copper conductor cable 1100 Volt grade complete all as specified and directed.

S & F in replacement copper lugs suitable for 10 Sqmm size cable complete all as specified and directed

S & F in replacement busbar chamber 4 pole factory made using CRCA sheet steel of 1.6mm thick and epoxy powder coated and ETP grade copper and dull tin plated busbar sections including dough moulding compound (DMC) busbar support of protection class IP-31, standard conformity IEC-60439/IS-8623 of 200A current carring cap, 440 volts, 50Hz, short circuit withstand capacity 25 KA in 01 Sec including 8 Nos of outgoing complete all as directed of {Model/Make :- Cat Part No IHBC020008 of make Havells or equivalent model of make LEGRAND/L & T/Standard/C & S.}

S & F in replacement busbar chamber 4 pole factory made using CRCA sheet steel of 1.6mm thick and epoxy powder coated and ETP grade copper and dull tin plated busbar sections including dough moulding compound (DMC) busbar support of protection class IP-31, standard conformity IEC-60439/IS-8623 of 100A current carring cap, 440 volts, 50Hz, short circuit withstand capacity 25 KA in 01 Sec including 8 Nos of outgoing complete all as directed of {Model/Make :- Cat Part No IHBC010008 of make Havells or equivalent model of make LEGRAND/L & T/Standard/C & S.}

S & F in replacement synthetic insulation mat for electric purpose of size 2m x1m x 3mm thick as per IS:15652 complete all as specified and directed.

Supply only following components/parts in existing LT Panels/LT feeder pillar boxes:-

Analog type Voltmeter 0-500 volts, 3 Phase of size 96mm x 96mm.

Ammeter 0-400 Amps capacity, 3 Phase, class I accuracy, 0.5 VA burden including set of CTs of size 96mm x 96mm.

Ammeter 0-100 Amps capacity, 3 Phase, class I accuracy, 0.5 VA burden including set of CTs of size 96mm x 96mm.

LED type Indicating lamp flush mounted, Red, yellow or blue colour as directed.

Toggle switch

Start push button (green) complete with internal connection suitable for running of 5-10 HP motor complete all as specified and as directed.

Stop push button (Red) complete with internal connection suitable for running of 5-10 HP motor complete all as specified and as directed.

Over load protection relay suitable for 3 phase 415 volt for induction motor for 50-70 Amp load complete all as specified and as directed

Electronic Star Delta Timer suitable for 240 - 415 VAC,1 NO (Star) + 1 NO (Delta), with settable Start time, settable pause time, indication for Star & Delta, Cat Part No. 2BSDTO produced by GIC and marketed by L & T or equivalent Model of Make Siemens/ BCH/Havells/ C&S for 3 phase 415 volt motor, 50-70 Amp load capacity complete all as specified and as directed.

Rotary handle DN2 Extended Rom type for d Sine MCCB 3 phase, 440 Volts, Cat Part No. CM99830OOOO OF Make L & T or equivalent Model of Make Siemens/ BCH/Havells/ C&S complete all as specified and as directed

Power contactor MNX 70, Cat Part No CS97076 of Make L & T or equivalent model of Make Siemens/BCH/Havells/ C&S complete all as specified and directed.

Left/Right side mountable (as ordered) Add on auxilary contact block 1 NO + 1 NC, Cat Part No. CS94220/CS94221 OF Make L & T or equivalent Model of Make Siemens/ BCH/Havells/ C&S complete all as specified and as directed

Power contactor 3 Pole of rated current upto 22 Amps and suitable for three phase induction motor of capacity upto 11 KW Cat Part No. 3TF33 OO-0A of Make Siemens or equivalent Model of Make L & T/BCH/ Havells/ C&S complete all as specified and as directed

Front mounting Add on block Cat Part No. 3TX4010-24-1NO of Make Siemens or equivalent Model of Make L & T/BCH/ Havells/ C&S for power contactor 3 Pole (Cat Part No. 3TF33 OO-0A OF Make Siemens) complete all as specified and as directed

Front mounting Add on block Cat Part No. 3TX4010-24-1NC of Make Siemens or equivalent Model of Make L & T/BCH/ Havells/ C&S for power contactor 3 Pole (Cat Part No. 3TF33 OO-0A OF Make Siemens) complete all as specified and as directed

Thermal Overload relay suitable for 3 phase 415 volt, MN5 (Directly operated), relay range 9-15 Amps, directly mountable (on power contactor MNX 50-80), Cat Part No. SS94135OOBO of Make L & T or equivalent Model of Make Siemens/ BCH/Havells/ C&S complete all as specified and as directed

Thermal Overload relay suitable for 3 phase 415 volt, of Make Siemens suitable for power contactor 3 Pole (Cat Part No. 3TF33 OO-0A OF Make Siemens) or equivalent Model of Make L & T/BCH/Havells/ C&S complete all as specified and as directed

Dismantling carefully Exhaust fans (any make), removing from site, dismantling of blades, overhauling/repairing and servicing,reassembling the exhaust fan, scraping out of old paint from the body and blades of Exhaust Fans, filling in cavities with approved filler and M&L for spray painting with two coat of synthetic enamelled paint first quality over a coat of red oxide primer on the body and blades and writing MES No on the body of exhaust fan with black synthetic enamelled paint including testing & replacement of PVC flexible copper cable of size 3 core, 23/0.0076 Sqmm and re-installing at same/other location as directed complete all as specified and as directed for following sizes :-

150mm sweep

300mm sweep

450mm sweep Notes : (a) Cost of labour for replacement of new component in above Exhaust fans shall be deemed to be included in quoted rates. (b) Cost of cosumables like Oil/Grease/Lubricants shall be deemed to be included in quoted rates. (c) New spare parts/components shall be measured and paid as Supply only under respective items of BOQ here-in-after. (d) Rewinding if required/ordered shall be measured and paid under respective items of BOQ here-in-after.

M & L for cutting down and removing old copper winding wire and rewinding the same with new super enamelled copper winding wire of suitable size including provision of insulation by insulating paper, varnishing, baking, oiling & greasing, necessary threading/sleeve work etc. including testing complete all as specified and as directed for following sizes :-

150mm sweep

300mm sweep

450mm sweep Notes : (a) Dismantling and re-installing of Exhaust fans shall be measured and paid under respective item here-in-above.

Supply only following spares/components for exhaust fans complete all as specified and as directed for following sizes :-

Ball bearing of size No. 6201 suitable for 300mm sweep metal fan

Ball bearing of size No. 6202 suitable for 450mm sweep metal fan

Gun metal bushes including surround packing of Namda felt suitable for metal exhaust fans 150mm sweep

Shaft suitable for 150mm sweep metal fan

Shaft suitable for 300mm sweep metal fan

Shaft suitable for 450mm sweep metal fan

Non metallic fan blade suitable for 150 mm sweep exhaust fan

Metallic fan blade suitable for 300 mm sweep exhaust fan

Metallic fan blade suitable for 450 mm sweep exhaust fan

Capacitor of capacity 0.75 to 1.5 mfd 440 VAC

Capacitor of capacity 2.5 mfd 440 VAC

Capacitor of capacity 4.0 mfd 440 VAC

Dismantling carefully PVC Ventilating fan (any make), removing from site, overhauling/repairing, cleaning and servicing, reassembling the PVC Ventilating fan including testing & replacement of PVC flexible copper cable of size 3 core, 23/0.0076 Sqmm and re-installing at same/other location as directed complete all as specified and as directed for following sizes :-

150mm sweep Notes : (a) Cost of labour for replacement of new component in above Ventilating fans shall be deemed to be included in quoted rates. (b) Cost of cosumables like Oil/Grease/Lubricants shall be deemed to be included in quoted rates. (c) New spare parts/components shall be measured and paid as Supply only under respective items of BOQ here-in-after.

Supply only following spares/components for PVC Ventilating fan 150mm sweep complete all as specified and as directed:-

Ball bearing

Gun metal bushes including surround packing of Namda felt

Shaft

PVC blade as per existing design

M & L for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron earth strip of size 32mmx6mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel besides welding at all joints as shown in drawing and including excavation and earth work, GI pipe light grade 40mm bore for protection of earth wire and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt PCC 1:2:4 type B1, chamber and MS angle iron frame 40x40x3mm and RCC cover 40mm thick (1:2:4) type B1 using 20mm graded stone aggregate reinforced with 6mm dia round bars @ 75mm C/C both ways with MS handle 12mm dia, PGI funnel and wire mesh, 20mm dia GI pipe medium grade for watering all as shown in electrical plate No 5 on srl page No 497 of SSR Part I (2009) drawing and connection to earth test point including testing and including dismantling and taking out old earthing complete all as specified and directed. Note : (i) The cost of earth lead /strip and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate. (ii) The cost of excavation, earth work is included in the quoted rate.

M & L in replacement for GI earth strip of size 32mmx6mm as in earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed on porceabline type insulator and mounted on poles/walls or any other indicated situation for loop earthing etc complete all as directed. Note: - Length beyond 7.5m (as already included in item of earthing) will be measured and paid against this item as per site requirement.

kapoor and co