REPAIR AND MAINT OF HT PANELS AND ALLIED WORKS AT COMMAND HOSPITAL(EC) UNDER GE (A) KOLKATA

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft/ loose soil complete all as specified and directed.

All as per item No 1 here-in-before but in hard / dense soil

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm. in any type of soil complete all as specified and directed.

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point in any type of soil complete all as specified and directed.

M&L for Servicing of Natural Oil Cooled Transformer including taking proper shutdown from HT side and disconnecting all HT and LT cables, checking drain plug and replacing where required, checking oil level indicator and replacing where required, checking of silica gel breathers, manual cleaning the cores and windings from sediments and foreign particles deposited on cores/ windings/ body, replacing the gaskets and bolts/Nuts as reqd for the transformer 6/0.415 kV of capacity 200 to 250 kVA. [ Note: - The materials used for servicing will be measured and paid under separate item as supply only. Other minor spares/ materials and tools used for servicing not mentioned in the schedule (viz drain plug, bolts and nuts, materials and tools required for cleaning or core/ windings, tools required for cutting of gaskets etc) deemed to be included in the quoted rate. Dehydration and topping up of transformer oil will be measured and paid under separate item but must be done at the time of servicing]

All as per Item No 5 here-in-before but for transformer 6/0.415 kV of capacity 315 to 500 kVA.

All as per Item No 5 here-in-before but for transformer 6/0.415 kV of capacity 630 to 800 kVA.

M&L for Draining out all the transformer oil and preserving in air tight container and Dehydration and filtration of transformer oil with streamline transformer oil purification/ dehydration machine including heating for removing moisture content to bring down the parameters of the oil within the permissible limit as laid down in IS: 1866.2000 all as specified and as directed including testing and topping up with new transformer oil upto optimum level for transformers 6/0.415 kV of capacity 200 to 800 kVA: - [Note: (i) Cost of pouring new transformer oil to maintain the optimum level deemed to be inclusive in the quoted rate. The quantity of new transformer oil will be measured and paid under separate item as supply only. (ii) The cost of re-filtration/ re-dehydration (in case the parameters of filtered oil does not comply with the laid down limits as per IS) shall be deemed inclusive in the quoted rate

Supply only new transformer oil in non-returnable containers including testing of parameters from Govt authorised laboratory as per IS: 335:1993 all as specified and as directed.

M&L for opening covers of dry type transformer 6/0.415 kV of capacity 750 kVA make: ICON Engineers Pvt Ltd and servicing complete including manual cleaning of dust and sediments through blower/ vacuum cleaner by auth Service Engineer of OEM all as specified and as directed. [ Note: - The materials used for servicing will be measured and paid under separate item as supply only. Other minor spares/ materials and tools used for servicing not mentioned in the schedule (viz drain plug, bolts and nuts, materials and tools required for cleaning or core/ windings, tools required for cutting of gaskets etc) shall be deemed inclusive in the quoted rate. Dehydration and topping up of transformer oil at the time of servicing will be measured and paid under appropriate item in BOQ]

Supply only silica gel breather including initial fiiling with required quantity of silica gel of make: Jaipuria Brothers Electrical Pvt Ltd or equivalent in other approved make for transformers of capacity 200 kVA to 250 kVA all as specified and as directed: -

All as per item No 11 here-in-before but for transformers of capacity 315 to 500 kVA.

All as per item No 11 here-in-before but for transformers of capacity 630 to 800 kVA.

Supply only transformer bushing including studs for HT primary side of existing transformer 6/0.415 kV of capacity 200 to 800 kVA all as specified and as directed.

Supply only transformer bushing including studs for LT secondary side of existing transformer 6/0.415 kV of capacity 200 to 800 kVA all as specified and as directed.

Supply only best quality good oil resistant gasket sheet suitable for oil cooled transformer as per IS: 4253 including cutting to shape as per existing size of transformer top covers and side covers all as specified and as directed

M&L for painting of transformers with two coats of synthetic enamel paint of approved colour and writing MES No with Capital letters at two places after removing of old paints by paint removing chemicals and mild scrapping all as specified and as directed for transformers of capacity 200 kVA to 250 kVA

All as per item No 17 here-in-before but for transformers of capacity 315 to 500 kVA.

All as per item No 17 here-in-before but for transformers of capacity 630 to 800 kVA.

M&L for maintenance of Vacuum circuit breaker with panel of make: PASCAL, 6 kV grade, 400 to 800 Amp by auth rep of OEM including the following: - (a)Switching off VCB and confirming that supply to incoming end is properly disconnected. (b)Opening covers of the circuit breaker and visual checking of epoxy housing and all parts for rust and wear. (c)Cleaning all parts of the breaker compartment with appropriate chemical to remove dust and dirt and wipping of the envelop of the vacuum interrupter and insulating material with a clean and dry cloth. (d)Lubricating of rotary sections and moving parts, sliding surfaces, pins, coupling section etc by applying a small amount of grease/ petrolium jelly/ machine oil as applicable. (e)Checking of PTs, CTs, control circuits, closing and tripping coil and all other parts. (f) Replacement of parts detected defective or less reliable. (g) Checking auxilliary supply and control voltage, control circuits and tightening of all connections. [Note : - (i) Cost of spare parts need to be replaced during maintenance work shall be deemed inclusive in quoted rate. (ii) After servicing of VCB, Health check up reports shall be submitted by the contractor. (iii) The old retrieved materials shall be deposited to MES store yard of AGE E/M-1]

M&L for maintenance of Ring Main Unit with 02 Nos Incoming and 01 No outgoing of make: Areva T&D, 6 kV grade, 400 to 630 Amp by auth rep of OEM including the following:- (a)Switching off the all the incoming and confirming that supply to incoming end is properly disconnected. (b)Opening covers of the RMU and visual checking of all parts for rust and wear. (c)Cleaning all parts to remove dust and dirt and wipping of the envelop of the moving contacts and insulating material with a clean and dry cloth. d) Lubricating of rotary sections and moving parts, sliding surfaces, pins, coupling section etc by applying a small amount of machine oil and applying grease for operating shaft and bearings. (e)Checking of PTs and CTs and all control circuits. (f)Replacement of parts detected defective or less reliable (g) Servicing of APFC Panel [Note : - (i) Cost of spare parts need to be replaced during maintenance work shall be deemed inclusive in quoted rate. (ii) After servicing of RMU, Health check up reports shall be submitted by the contractor (iii) The old retrieved materials shall be deposited to MES store yard of AGE E/M-1]

M&L for 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 to poles or any other indicated situation for loop earthing etc. as required 32x6mm galvanised iron strip complete all as specified and directed

M&L for Aluminium strip 25 x 3 mm with saddles and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and directed

M&L for Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw complete all as specified and directed

M&L for earthing complete with galvanised iron earth plate electrode 600 mm x 600 mm x 6 mm thick, burried directly and preferably vertically in ground, earth pit not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 m below ground level connetced with galvanised strip of size 32 x 6 mm by means of nuts, bolts, check nuts and washers made of galvanised iron or steel earthing lead to be protected by galvanised iron pipe 40 mm bore (light grade) and other end connected to earthing test point or lightening arrestor or main controlling switch as directed including providing funnel with 20mm bore galvanised iron pipe (medium grade), wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness) all round the earth electrode, concrete earth pit in PCC (1:3:6) type C-1 (with 20mm graded aggregate), 50mm thick precast RCC (1:2:4) cover slab (re-inforced with 8mm dia TMT bar @ 15 cm C/C bothways and suitable handle made of 10mm dia) including necessary earth work in excavation, returning filling and removal of surplus earth upto a distance not exceeding 50 m etc all as shown on electrical plate No. 3 of MES Schedule Part-I(2009) complete including testing on complete all as specified and as directed by the Engr-in-Charge.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed

All as per item Ser No 26 here-in-before but of size 120 sqmm to 185 sqmm

All as per item Ser No 26 here-in-before but of size 240 sqmm to 300 sqmm

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed

All as per item Ser No 29 here-in-before but of size 120 sqmm to 185 sqmm

Supply and Laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts (Earthed) grade cross sectional area 95 sq. mm complete all as specified and directed

All as per item Ser No 31 here-in-before but of size 120 sqmm

M & L for Painting over surfaces of any description, over 10cm in width or girth, not otherwise described with two coats of black japan paint complete all as specified and directed

Supply only insulating HT synthetic rubber mat of size 1 m x 1 m x 2.5 mm thick as per IS: 15652 (2006) complete all as specified and directed

Supply only insulating LT synthetic rubber mat of size 1 m x 1 m x 2.0 mm thick as per IS: 15652 (2006) complete all as specified and directed

Supply and Laying XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade of size 400 sqmm 3.5 core complete all as specified and as directed Note:- Necessary Earth work, sand cushioning, PCC cable cover, provision of GI pipe for protection against mechanical damage under roads, floor, on wall or along the poles etc will be measured separately under appropriate items of this BOQ.

All as per item Ser No 36 here-in-before but of size 240 sqmm 3.5 core

All as per item Ser No 36 here-in-before but of size 185 sqmm 3.5 core

All as per item Ser No 36 here-in-before but of size 120 sqmm 3.5 core

All as per item Ser No 36 here-in-before but of size 95 sqmm 3.5 core

M&L for dry river Sand filling in trenches including punning down consolidation in soft/ loose soil complete all as specified and directed

Supplying and laying reinforced precast concrete cable cover, class HV, Type 1, flat, size 300mmx l80mm x 40mm complete all as specified and directed

M&L for brick protection of cables in trenches with old size sub-class 'B' bricks complete all as specified and directed

M&L for tubes, 'light grade', galvanised, with all fitting; laid in trenches 80 mm for cable protection complete all as specified and directed Note:- Labour charge for necessary boring for passing protection pipe will be paid separately under appropriate item of BOQ.

M&L for providing PCC 1:2:4 type B0 (by using 12.5mm graded stone aggregate) as in roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and directed

M&L for rendering 5 mm thick in CM 1:6 on fair faces of brick work or concrete surfaces complete all as specified and directed

M&L for Mild steel plates, plain or chequered, 5mm thick or over in thickness in available sizes for use as duct covers as per existing size complete all as specified and directed

S&F of Voltmeter digital type suitable for 6.6 KV comlete all as specified and directed. Make:- ABB / L&T / Seimens

S&F of Ammeter digital type suitable for 6.6 KV comlete all as specified and directed. Make:- ABB / L&T / Seimens

S&F of Power Factor / Load meter digital type suitable for 6.6 KV comlete all as specified and directed. Make:- ABB / L&T / Seimens

S&F feeder protection relay, 4 pole, suitable for 6.6 KV comlete all as specified and directed. Make:- ABB / L&T / Seimens

Labour only for horizontal boring for passing protection pipe upto 100mm bore under road / footpath, not existing 10m in a single length complete all as specified and directed

Note: Schedule of credit (SCHEDULE OF CREDIT) amount of Rs ________ mentioned on Page No 30 shall be deducted from the total quoted amount of BOQ.

M/S J S ENTERPRISES

Ultimate Solution Company

ARATI TRADING CO

TOTCO