REPAIR/ REPLACEMENT AND IMPROVEMENT OF HT ELECTRIC SUPPLY, REPAIR TO TRANSFORMERS AND OTHER MISC ITEMS AT PALAMPUR AND ALHILAL MIL STN

Amount

Dismantling ACSR or AAC conductor complete of any type and size and removing unservicable conductor from site, complete all as specified.

Dismantling of concrete/ steel poles/ struts any size including insulators and removing from site complete all as specified and directed.

Excavation in trenches for HT poles and cable in any type of soil n.exc 1.5 metres wide and not exc 1.5 metres deep and getting out complete all as specified and directed.

Excavation in trenches for HT poles in any type of soil n.exc 1.5 metres wide and exc 1.50 metres but not exc 3.00 metres in depth and getting out complete all as specified and directed.

Returning filling in (soil) including spreading, levelling, watering and well ramming in layers n.exc 25cms thick in any type of soil complete all as specified and directed.

Removal of excavated material (soil) to a distance exc 500m but n.exc 1.50 Km and depositing where directed at a level n.exc 1.5metres above the starting point complete all as specified and directed.

Plain cement concrete M-10 nominal mix, type C-1 using 20mm graded crushed stone aggregate as in foundation of stays, posts and struts etc. and as in mass concrete, complete all as specified.

Plain cement concrete M-7.5 nominal mix, type D-2 using 40mm graded crushed stone aggregate as in foundation of poles etc. and as in mass concrete, complete all as specified.

Plain cement concrete M-15, nominal mix, B-0 using 12.5mm graded mechanically crushed stone aggregate as, in lintels upto 1.5 metre clear span, steps, seismic and other similar bends, coping, bands plates for serving hold fasts, filling in mild steel frames etc. and the like including weathering slighting rounded or chamfered angles and throating complete all as specified. Note:- (i) The unit rate include for use of form work (straight or curved).

Sand cushioning to protection of underground cables, laid 8 Cm before laying and 15 Cm after laying of cable, and punned to form an overall layer of 18 Cms thick, complete all as specified and directed Note: Punned thickness shall be measured.

Sub class ‘B brick, old size, brick covering laid dry, flat, transversally along the length of cable on sand cushioning, with width equal to the length of the brick including taking out old bricks, complete all as specified and directed.

Mild steel galvanised iron tubing light grade for cable protection as in road crossing, along poles, walls, floors drain of 80mm size fixed with MS clamps, nuts and bolts required complete all as specified and directed.

XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts (Earthed), grade cross sectional area 95 sqmm 3 core, laid in trenches or passing through pipes/ ducts or fixed to walls/ poles complete including testing and taking out old unservicable cable, cable covers complete all as specified and directed. Note:- Excavation & Earth work, brick cable cover, GI pipe and sand cushioning shall be measured and paid separetly.

Renewal of cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination, heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm, complete all as specified.

Renewal of cable jointing kit for 11 KV (Earthed) grade cable for indoor termination, heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm, complete all as specified.

Renewal of cable jointing kit for 11 KV (Earthed) grade cable for straight through, heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm, complete all as specified.

Supply and straining of Aluminum conductor steel reinforced (ACSR) of any size on HT over head line including necessary binding work, jumpering, maintaining proper sag as per IE rule including cutting of tree branches around the ACSR conductor within area of 5mtr complete all as specified & directed

Structural steel work as in cross arms, bracings, supports, clamp and back plate fabricated from steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed by Engineer-in-Charge and applying two coats of aluminium paint over one coat of red oxide zinc chrome primer including preparation of surfaces and dismantling old structural steel work in cross arms and stacking at site, complete all as specified & directed.

Steel tubular swaged poles complete with base plate 8mm thick welded with pole, finial taper plug, bolt, nut and screws as specified type 410 SP-55 (11m long) including one coat of red-oxide zinc chrome primer and two coats of aluminium paint on surfaces exposed to view and making 30cm wide strips (total 5 Nos) with yellow and black paint alternately on external surface above PCC benching including numbering with black paint and painting with bituminous paint internally complete and externally for portion embedded in PCC, complete all as specified and directed. Note:- Earth work & excavation and PCC shall be measured and paid under respective Items of BOQ.

Renewal of pin type insulator porcelain, vitreous, white/brown or green including one galvanized mild steel spindle, two galvanized iron washers and one galvanized iron nut, 150mm dia and 150mm height for working pressure 11000 volts grade includng taking down existing insulators and removing from site, complete all as specified.

Renewal of disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green, 'Two-in-series' assembly for tension with tension clamps for conductors working pressure 11000 Volts complete all as specified and directed.

Renewal of lightning arresters (Set of three) expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp for 11000 volts including taking out old unservicable arrester and removing from site complete all as specified and directed.

Renewal of transformer oil in transformers/ voltage stabilizer of viscosity as per IS: 335-1993 duly dehydrated and tested having dielectric strength 40 KV when tested at 4mm gap all as specified and directed. Make: Power oil or equivalent as approved by GE complete all as specitied and directed.

Dehydaration/ filteration of transformer oil of existing transformer installed at site with portable plant to improve the dielectric strength not less than 50 KV inculding testing of dielectric strength before and after dehydaration at site complete all as directed.

Renewal of male and female contact/ moving contact blade made out of brass alloy, spare for gang operated air break switches 11 KV voltage, 200 Amps complete all as specified.

Stay Assembly using stay rod of 20mm dia complete with accessories as shown in Electrical Plate No. 1 of SSR 2009 Part-I including galvanized steel stranded wire of size 7/4mm, taking out/ dismantling old stay assembly, complete all as specified ( Loop type insulator, earth work and PCC shall be measured and paid for separately under respective items of BOQ)

Loop type insulator, porcelain, vitreous white, brown or green, large size with overall dimensions 90x140mm, clearance of hole 25.5 mm, complete all as specified and directed.

Painting to three/ four pole structure made out of steel tubular HT poles, 11m long including cross arms, channels, angle iron support, bracings, clamps, XPM jalli etc. with one coat of aluminum paint superior quality of approved make on surfaces exposed to view above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed.

Painting to two pole structure made out of steel tubular HT poles, 11m long including cross arms, channels, angle iron support, bracings, clamps, XPM jalli etc. with one coat of aluminum paint superior quality of approved make on surfaces exposed to view above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed.

Painting to existing steel tubular HT poles, 11m long including cross arms, channels, angle iron support, bracings, clamps etc. with two coats of aluminum paint superior quality of approved make on surfaces exposed to view and making 30cm wide strips (total 5 Nos) with white and black paint alternately on external surface above PCC benching including preparation of old painted surfaces by scraping etc complete and writing pole numbers. of 2 inches bold letters with black paint after painting, complete all as specified & directed

Painting of transformer, 100 KVA to 400 KVA indoor/ outdoor type with one coat of smoke grey colour synthetic enamel paint over the existing paint after cleaning and removing the dust and dirt and cleaning with sand paper and preparing surface for painting complete including writing SM Nos on transformer body with letters 50mm high with white synthetic enameled paint complete for transformer of any capacity without disturbing the supply complete all as specified and directed by Engineer-in-Charge. Note: Write with white paint on body of transformer " Date of Dehydration". ............................, "Date of Top Up of Transformer Oil".

Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 metre deep below normal ground level) with top edge of plate not less than 1.5 metre below ground level, connecting to galvanised iron wire 4.0mm dia (as earth lead wire), by means of bolt, nuts, check nuts and washer of galvanised and earth wire protected by provision of galvanised iron pipe light grade, 15 mm bore including provn of concrete pit in plain cement concrete M-15 type B-1 using 20mm graded crushed stone aggregates with 40mm thick cover of rainforced cement concrete M-15 reinforced with XPM (weight not less than 4 kg/Sqm) and frame of angle iron 25x25x3mm with lugs 2 Nos and with 6mm dia mild steel bar handle made to shape, galvanised iron medium grade 20mm bore pipe for watering perforated at bottom 1.75 metre long placed on top edge of earth plate, common salt and charcoal filling, test point made out of phosphorous bronze with fixing arrangement, funnel, wire mesh and including earth work in any type of soil, returning filling in and removal of surplus soil to a distance not exceeding 50 metre, all as per electrical plate No. 3 of SSR 2009 Part-I and connection to earth test point all as specified and testing on completion.

Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 metre deep below normal ground level) with top edge of plate not less than 1.5 metre below ground level, connecting to galvanised iron strip 32X6 mm size (as earth lead strip), by means of bolt, nuts, check nuts and washer of galvanised and earth wire protected by provision of galvanised iron pipe light grade, 40 mm bore including provn of concrete pit in plain cement concrete M-15 type B-1 using 20mm graded crushed stone aggregates with 40mm thick cover of rainforced cement concrete M-15 reinforced with XPM (weight not less than 4 kg/Sqm) and frame of angle iron 25x25x3mm with lugs 2 Nos and with 6mm dia mild steel bar handle made to shape, galvanised iron medium grade 20mm bore pipe for watering perforated at bottom 1.75 metre long placed on top edge of earth plate, common salt and charcoal filling, test point made out of phosphorous bronze with fixing arrangement, funnel, wire mesh and including earth work in any type of soil, returning filling in and removal of surplus soil to a distance not exceeding 50 metre, all as per electrical plate No. 3 of SSR 2009 Part-I and connection to earth test point all as specified and testing on completion.

Servicing and maintenance of Gang operated switch and drop out fuse assembly triple pole, by applying white petroleum jelly, greasing the operating mechanism, drop out fuse assembly (set of three) repairing complete spare parts with new such as worm out male contact (moving blade contact), Female contact (fixed jaw contact), post insulators, copper/ aluminum jumper, arcing horn, operating pipe of GI 20/25 mm dia ‘B’ class, pipe guide, looking arrangement, operating lever, fixing of appropriate HT fuse element,, nut bolts etc and making the GOD functional complete all as specified and as directed by Engr-in-Charge. Note: Contractor should take prior shutdown in writing for carrying out maintenance of GOD to avoid any accident.

Supply, installation, testing and commissioning gang operated switch with 9 insulators, outdoor type, triple pole, mounted on 9 insulators, mechanically operated suitable for vertical installation, single break, provided with locking arrangements, consisting of MS channel, HT post type insulator contacts of copper alloy, high pressure, heavy duty contact assembly, operating rod 20mm dia GI pipe medium grade complete including drop out fuses confirming to IS-1818, rated voltage 11KV and for current rating 200 Amps including taking down unserviceable GOD of any type, shape & size with steel frame and removing from site all as specified and directed.

Supply installation testing and commissioning of HT 11KV junction box outdoor type (IP-55) made of 3mm thick CRCA sheet welded to angle iron 40x40x6mm on all sided, with open able shutter on both sided (front/rear) having locking arrangement, totally enclosed, weather proof spray painted internally and externally with two coats of synthetic enamel pain over a coat of red oxide primer suitable for 11000 volts, confirming to IP-54, 03 Nose aluminium bus bar of capacity 400 Amps, mounted with HT insulator, connected to two Nose independent earthing lead (width of the panel no less than 75 cm) including legs of panel of 90 cm height made of angle iron 50x50x6 mm ground in PCC 1:2:4 up to 30 cm complete, suitable fencing around the panel as per IEC all as specified and directed.

H T cable route maker, 30cm above the ground level complete with fixed in PCC block of 20cmx30cmx20cm & top of the maker is marked 95x120 Sqmm “HT cable” all as specified.

Carrying out servicing and calibration of HT VCB switch gear including VCB 630 Amp after proper shut down and disconnection the cables from panel VCB Breakers calibration of over fault relay earth fault relay checking of alignment of VCB isolation contacts servicing of operating mechanism including tripping and closing system of the breakers dehydrating decorbonising of panel bus section and circuit section including incoming/ outgoing cable and necessary HT insulation at joint removing perished monoplus compound cleaning and re-insulation with HT taps wherever necessary with and including replacement of burnt out/ defective spares like tension springs tomen springs nut bolts washers of suitable size lingers etc under the supervision of authorized dealer/ representative and refixing the panel in its original position and testing entire satisfaction of Engineer-in-Charge.

Carrying out servicing and calibration of HT VCB switch gear including VCB 400 Amp after proper shut down and disconnection the cables from panel VCB Breakers calibration of over fault relay earth fault relay checking of alignment of VCB isolation contacts servicing of operating mechanism including tripping and closing system of the breakers dehydrating decorbonising of panel bus section and circuit section including incoming/ outgoing cable and necessary HT insulation at joint removing perished monoplus compound cleaning and re-insulation with HT taps wherever necessary with and including replacement of burnt out/ defective spares like tension springs tomen springs nut bolts washers of suitable size lingers etc under the supervision of authorized dealer/ representative and refixing the panel in its original position and testing entire satisfaction of Engineer-in-Charge.

Note for srl item nos 38 & 39. (i) Rate shall be deemed to including of visiting and inspection of VCB of technician/ mechanic and minor spares etc. (ii) If burnt out/ defective items like moving fixing contact coil earth fault relay etc will be measured and paid separately under respective items.

Supply & fixing in repair trip coil with plunger 30 volt DC suitable for HT VCB 11KV, 630 Amps completes all as specified.

S & F in repair closing coil with plunger 30 volts, DC operated including removing existing unserviceable coil including testing and commissioning all as specified an as directed.

S & F in repair wound type CT Ratio: 100/5+5A Core 1: CL1, 15VA, Core2: CI5p10, 15VA, STR: 13.1KV/1sec, Freq: 50 HZ BIL: 12/2875kv, Ref Std IS 2708, Secondary Terminals on P1 side; complete after removing old existing CT all as specified and directed by Engr-in-Charge. Make: CG/Scnider/Bharti/ECS

Renewal of earth fault and over current relay assembly 18 to 250 volts DC/75 Volts to 220 votes DC for VCB of capacity 630 Amps complete all as specified and directed. Make: Ashida Cat No ADC141C or equilant CG/Schneider/C &S.

Supply & fixing charging motor 23V DC/AC for VCB 630/400 Amp capacity type VMX/UNIVAC complete all as specified and directed.

Three phase Voltmeter digital type for VCB 11 KV 400/630 Amp complete all as specified and directed.

Three phase Amp digital type for VCB 11 KV 400/630 Amp complete all as specified and directed.

Phase indicator for VCB 11 KV 400/630 Amp complete all as specified and directed.

Spring drum for VCB 11 KV 400/630 Amp complete all as specified and directed.

Spring for VCB 11 KV 400/630 Amp complete all as specified and directed.

Gear set for VCB 11 KV 400/630 Amp complete all as specified and directed.

Supply and fixing in replacement following parts of the transformer suitable for any type, any make, upto capacity 250KVA including dismantling of unservicable spare parts.

Top cover gasket made up of 5mm cork sheet complete all as specified and directed.

HT bushing insulator porcelain brown body, suitable for 11000V as per IS-3347 complete all as specified and directed.

LT bushing insulator porcelain brown body, suitable for 1100V as per IS-3347 complete all as specified and directed.

HT brass/copper bushing rod for HT insulator 11000V complete all as specified and directed.

LT brass/copper bushing rod for LT insulator 1100V complete all as specified and directed.

Breather assembly complete with silica gel for transformer upto 200KVA complete all as specified and directed. Make: Omkar/Kamal.

Dial type thermometer, 0-100 degree range complete all as specified and directed.

Disconnecting, removing of burnt transformer, step down of 11/ 0.433 KV, 63 KVA capacity, loading and transporting (up and down) to authorised workshop to facilitate repair work from site (Power house) and back complete all as described below:- (a) Opening the transformer, collecting transformer oil, taking out core of transformer by disconnecting the same from HT/ LT bush rods, opening of core lamination and taking out all the HT coils of transformer. (b) Rewinding the damaged HT coils with standard copper enamelled conductor including necessary insulating material such as paper insulaing, cotton tape sleeves etc, varnishing the complete HT coils including new wounded with 'F' class insulating varnish. (c) Assembly of laminations of core after inserting the newly wounded coils with other coils and making connections of entire HT/ LT limbs complete. (d) Heating the assembled core in oven to desired temperature and testing the same for required insulating result of transformer. (e) Assembly of transformer after carrying out the repair work and making all HT/ LT connections with respective bush rods. (f) Dehyderation of transformer oil (collected from transformer) to get dielectric strength not less than 40 KV in first tipping with 5mm electrode gap and filling the same in transformer (Extra transformer oilrequired shall be measured and paid separately under respective items of BOQ). (g) Installation of transformer on locations as directed by Engineer in Charge on existing HT pole structure/ plinth and making all HT/ LT and earth connections including testing the transfromer on full load for 3 hours and on 10% extra load for two hours complete all as directed.

All as per srl item no 53 above but of capacity 100 KVA.

All as per srl item no 53 above but of capacity 160 KVA.

All as per srl item no 53 above but of capacity 200 KVA.

All as per srl item no 53 above but of capacity 250 KVA.

Renewal of drop out fuse assembly complete with 06 No's insulators and connected accessories for 11000 Volts grade of 200 Amps capacity all as specified and directed.

Cutting/ trimming of tree branches clearing 5 metres horizontal and 5 metres vertical distance from both sides of conductor including removing branches from site, complete all as specified & directed. Note:- Clearing branches from both sides of conductor in between two consequtive poles shall be considered as one span irrespective of distance between poles.

M/S MALHI CONSTRUCTIONS

M/s Sheetal Associates