REPAIR/ MAINT OF TRANSFORMERS AND ALLIED WORKS UNDER AGE E/M BAIRAGARH, BHOPAL

Amount

M&L in repair for online Filtration and dehydration of HV/EHV grade transformer oil of distribution transformers outdoor type of 33/0.433 KV 100 KVA to 2000KVA min three cycle to achieve die electric strength of 40 to 60 KV for 1 minute at 4 mm gap as per relevant IS with portable filtration plant, testing of the oil for die electric strength, break down voltage before filtration and after filtration complete all as specified and directed. Note: (i) Centrifuging Machine with all T&P & testing machine of oil required for dehydration is arrange by contractor. (ii) Oil required for topping up the transformer will be measured & paid separatly.

Supply , replacement and topping up transformer oil EHV grade as per IS 335 of 1993 Part II having die electric strength of not less than 40 KV in the transformer at various locations complete all as directed.

M&L for taking out old unserviceable defective HT bushings in repairs on site from distribution transformers of 33/0.433 KV, 100 KVA to 400 KVA and Supply and fix porcelain bushing with brass studs, nuts and washers connecting to winding, testing and commissioning complete all as specified an directed by EIC.

Taking out old unserviceable drain cocks from the transformers and Supply and fix new gun metal gate valve 25 mm bore along with brass/ gun metal dummy cap with rubbber washers as required at site complete all as directed. Make: Zoloto or equivalent as approved by the GE.

Taking out old unserviceable drain cocks from the transformers and supply and fix new gun metal gate valve 50 mm bore along with brass/gun metal dummy cap with rubber washers as required at site complete all as specified and directed. Make: Zoloto or equivalent as approved by the GE.

Taking out saturated silica gel from existing breather and Supply and replace silica gel in breather of transformers complete all as specified and directed

Taking out old u/s breather and Supply and replace silica gel breather suitable for transformer of capacity 100 KVA to 200 KVA complete all as specified and directed.

Ditto all as per item No 7.00 here in before but for transformer of capacity above 250 KVA and up to 315 KVA complete all as specified and directed.

M&L for testing of u/s defective distribution transformer 33/ 0.433 KV, upto 315 KVA on site at Bairagarh area, checking and testing with megger and other testing equipments for nature of fault and to shift the defective transformer to workshop for repair then disconnecting all electrical connections from LT/HT sides,neutral strip, earth strips, control cables if any etc complete from transformer, lifting and loading on vehcile through recovery van (crane) or manually as per site condition and transporting it to workshop to carry out further repairs. Note: (i) The following repair jobs under item 9.01 to 9.09 including testing and inspection by concerned authority will be carried out. (ii) Items to be paid seperatly are mentioned below in item No. 10.

M&L for Dismentling and opening of top cover of transformer for inspection in presence of EIC , taken out complete core, testing and meggering of winding, checking the fault, to check the HT /LT limbs, burnt winding & drain out the oil for filtration and reuse after repairing the transformer, testing of its die electric strength and recording all the values and readings etc and to prepare the inspection report.

M&L for Removing the existing burnt out winding (HT/LT side) without damaging the core and rewinding both primary and secondary windings with appropriate gauge of super enamelled anealed copper conductor wire with number of turns as per manufacturer recommendation including S&F insulation materials, baking, testing complete as required. Note: Copper scraps will be credit to contractor as per schedule of credit. (Copper conductor wire for winding will be measured and paid seperately).

M&L for filteration of existing transformer oils to remove moisture and metal particles for oil and get it dehydrate to acheive dielectric strength of 40 to 60 KV including top up with new transformer oil as required and servicing of breather assy etc. (Rate of new transformer oil to be paid seperately)

Removing the existing burnt out Tap changer and fixing of new tap changer as per the manufacturer recommendation. (New Tap changer to be measured and paid seperately)

Cleaning of transformer tank from inside, removing the burnt out particles and oil sludge settled in bottom etc and replacement of drain valve.

Painting of whole transformer outside with after preparing the old surface with two coats of synthetic enamel smoke grey paint.

Installing the winded cores inside the transformer body , making all connections, fixing to top cover with replacement of 6 mm thick gasket, new bolts nuts and washers and including replacement of 03 Nos post insulators complete.

Re inspection to be carried out after completing all the repairs, testing to be done at workshop in presence of EIC before shifting it to site, checking all the parameters and recording all the values and to prepare inspection report.

Transporting back to work site (Original site) from Workshop, lifting from transport vehicle with crane and manpower, installing at existing pole mounted/ Transformer plateform, making all HT/ LT electrical connections, connecting earthings etc with complete commissioning and testing.

Replacement of following parts (under item no 10.01 to 10.05) of unserviceable transformer disconnected under schedule item no-9.00:

New Copper wire/ Strip for LT/HT winding

Tap Changer as per existing size

Insulating material

HT bushing with brass studs

LT bushing

M&L for Painting of transformer on site after preparation of old painted surfaces of HT/LT transformers of capacity 100 KVA to 160 KVA including removing oil and greasy spots and applying one coats of synthetic enamel paint including white wash to transformer foundation plinth and lettering with white paint as MES NO/SM No, capacity, year of installation, serial No and Make etc over a base of black paint complete all as specified and directed.

Ditto all as per item No 11.00 here in before but transformer of capacity exceeding 160 KVA but not exceeding 315KVA complete all as specified and directed.

Taking down old/ unserviceable danger notice plate of any size complete all as specified and directed.

M&L for danger notice plate of 1.6 mm thick mild steel sheet vitreous enamelled white with letters, figures and conventional skull and bone in signal red colour and fixed with MS clamps (2 Nos of MS flat of 20 mm x 4mm) , bolts and nuts of approved size, for HT 25 x 20 cm size complete all as specified and directed.

Taking down u/s LA and S&F lightening arrestor expulsion type having voltage rating 33 KV, rated frequency-50 HZ, Nominal Discharge current 65 KA (Heavy duty) complete with all fittings, transmission class suitable for 33 KV, 3 Phase earthed distribution system complete all as specified and directed. Note: Each set comprising of three LA.

Dismantling old u/s AB switch/ DO fuse assembly any rating any type from existing HT system after disconnecting electrically and taking down complete all as specified and directed.

Supply and replace DO fuse assembly, triple pole mounted on polymer HT insulator 6 Nos and MS galvanised steel frame rating upto 200 Amp, 33000 Volt complete with DO fuse and electrical connections, jumpering by ACSR conductor and connectors complete all as specified and directed.

Supply and replace 33 KV Drop out fuse assembly, double stack channel type , triple pole mounted on procline HT insulator 6 Nos and MS galvanised steel frame rating upto 200 Amp, 33000 Volt complete with DO fuse and electrical connections, jumpering by ACSR conductor and connectors complete all as specified and directed.

Supply and replace gang operated air break switch triple pole mechanically operated Polymer type mounted on HT insulators (09 insulators type, 03 insulators in each pole, single breaking vertical type / horizontal type and MS galvanised steel frame with operating mechanism worked from ground level including operating rod for current rating upto 400 Amps, 33000 volts complete, locking arrangement MS clamps,bolts and nuts and washers required size to suit load at site including two coats of aluminium paint over a coat of red oxide primer on MS work complete all as specified and directed.

M&L for Taking out and repairing/ overhauling of air break gang operated switch with DO fuse unit 200 Amp/400 Amp capacity triple pole, mechanically operated mounted on insulators and steel frame installed vertically / horizontally , replacement of broken/worn-out components, oiling and greasing of mechanical moving parts, smoothing and polishing of electric contacts with providing conducting jelly of contacts refixed the same after repair complete including new nut bolts and washer etc all as specified and directed. (Note:- The quoted rate by contractor shall included the servicible parts in position and replacement of u/s parts with new one. The new parts shall be measured and paid for seperately here in after supply only.)

Supply only male contact/ moving contact blade

Supply only female contact/ fix contact jaw

Supply only tinned flexible copper jumper 200 Amp

Supply only MS jumper carrier

Supply only back contractor plate

Dismantling insulator any type, any size complete all as specified and directed.

Supply and replace for Insulator pin type porcelain vitreous, white brown or green including one galvanised mild steel spindle, two galvanised washers and one galvanised iron nut for conductor working pressure 33000 volt grade complete all as specified and directed.

Supply and replace for disc insulator porcelain vitreous, white brown or green 145 mm height and 255 mm dia ball and socket type single disc assembly for tension with tension clamp for conductor working pressure 33000 volt grade complete disc three- in-series including one galvanised mild steel spindle, two galvanised washers and one galvanised iron nut complete all as specified and directed.

Supply and fix disc insulator polymer, for conductor working pressure 33000 volt grade complete all as specified and directed.

Supply and fix pin type insulator polymer, for conductor working pressure 33000 volt grade complete all as specified and directed.

Taking down, dismantling, old rusted cross arms of MS channels or angle sections etc complete and setting aside for reuse or given credit to contractor under credit of schedule, complete all as specified and directed by EIC. Note: New channel etc shall be paid seperately under item below.

M&L for refixing structural mild steel channels, cross arms, clamps etc taken down under item No. 31 Above including new nut bolts washers etc all as directed by EIC

Supply, fabricating , fixing structural mild steel channel, angle iron,flat iron and brackets, etc for fabrications of cross arms, bracings, supports, D-clamps, stiffeners,eye hooks, bolts,pole clamps and back plates including nuts, bolts and washers, welding banding cold , or hot drilling holes for insulators bolts in any shape or size as indicated or directed and `H` beam of min size 152 x152 mm of min 9 mtrs long as a pole for making over head bus etc and inclusive of one red oxide primer coat , one under coat and one finishing coat of aluminium paint complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode size 600 x 600 x 6 mm thick, burried directly 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 mtr below normal ground level connected to galvanised iron strip 32 x 6 mm as earthin lead wire by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No 4 connected to earthing test point all as specified or indicated including testing on completion, surrounded from all sides by mixture of charcoal and common salt and electrode by means of steel and GI pipe light grade 20mm dia bore for watering funnel with wire mesh. CI cover with frame, PCC chamber pit with PCC 1:3:6 type C-2 excavation and earth work all as shown in electrical plate No 3 connected to earthing test point all as specified NOTES 1. The unit rate includes for protection pipe and GI strip dia from top of earth plate upto 7.50 meter above ground level.

Supply and replace 32mm x 6 mm GI strip as in earth continuity conductor fixed to wall or pole or recess or cheses or burried in ground or drawn in conduit pipe or any other indicated situation for loop earthing etc as required all as directed

M&L for Painting of HT steel pole of 11 mtr height with cross arms, clamp of any length and shape for HT overhead line with two coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 20 cm dia yellow circle & marking three black & two white bends width 30 cm by fluorescent paint, from bottom of pole to 1.5 Mtr height, complete all as specified and directed.

M&L for Painting of LT steel pole of 9 mtr height with cross arms, clamp of any length and shape for LT overhead line with two coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 20 cm dia yellow circle & marking three black & two white bends width 30 cm by fluorescent paint, from bottom of pole to 1.5 Mtr height, complete all as specified and directed.

M&L for Painting the cross arms, clamps etc of HT/LT PCC poles of 11/9 Mtrs height after preparation of surface, making the surface smooth with two coat of aluminium paint & providing alternative bend of 30 cm width ( 3 black and 2 white) from bottom of pole to 1.5 Mtr Height with two coat painting with synthetic enameled paint , writing of pole numbers in yellow circle 15 cm with black paint on poles complete all as specified and directed.

Supply, spreading and levelling 40 mm size graded crushed coarse aggregate around transformer plinth/ four pole and two pole structures all as specified and directed.

Ditto all as per item No 39.00 herein before but 20 mm size crushed stone aggrigated all as directed.

Maint and cleaning of surrounding area of sub station 33 KV main receiving stn/ sub station by cutting seasonal grass, bushes etc, by employing skilled mazdoor including using own T&P as required to do the job and taking all precaution while men on working in sub station being danger zone.

M&L for Cutting & trimming all tree branches of any length and size comming across , touching and coming with in the 5 mtrs range on both side of outer conductor of HT/LT over head lines after arranging shut down and by taking all precautions while working on lines, clearing of area, cleaning around sub stations, etc by employing a skilled team including all T & P, safty kit required for the purpose complete all as specified and directed. Note :- Contractor shall made arrangement and deployed sufficeint man power for cutitng and trimer of branches of 4 to 5 spans of HT/LT lines & poles per day. T&P required to be arranged by contractor. No T&P will be issued by department.

Inspection/ Servicing to HT VCB 33 KV outdoor type to make with full functional by doing following jobs. Note: Cost of u/s relays which required to be replaced will be paid seperatly under relivent items.

Servicing / overhaulling/repairing of out door 33 KV VCB of any make including cleaning, lubericating, checking of mechanism operation, electrical connection and for u/s spares, checking of manual/ electrical, local land from remote operations. Measurement of IR valve closing tripping time, contact resistance etc.

Servicing /repairing/replacement of faulty relay, testing of overcurrent, earthfault micro-prossesor base relay with IDMT (Inverse Definite Minimum Time) & instantaneous element for 33 KV system.

Checking proper functioning of auxiliary relay, master relay etc

Testing and servicing of CT through primary current, injection test, ratio test, insulation resistance test.

Testing & Servicing of PT, insulation resistance testing and continuity testing.

Cleaning of complete remote panel, tightening and checking of control wiring, visual inspection for any discrepancies, meaurening IR valve, rectifying if any problem including wires lugs ferrule terminals.

Micro switch

Closing transmission lever

Spacer

Nut M5, M6, M8

Srew M 6 X10

Spring washer

Parallel dowel

Indicator

Plan washer

Split pin

Micro switch arm

Trip magnet coil

Torsion spring

Tension spring

Reparing of manual charging shaft

M&L in replacement of existing damaged PCC/ steel tublar pole, Supply, fixing and erecting steel tubular swaged pole complete with cost iron base plate, final tapper plug, nuts, bolts and screws as specified type 410-SP-55 (11 mtr long) with 2 coats of aluminium paint over a coat of primer complete al as specified and directed (Excavation/ Earth wk & PCC for foundation channel, clamps, nut & Bolts to be measured and paid separately)

M&L in replacement of existing damaged PCC/ steel tublar pole, Supply, fixing and erecting steel tubular swaged pole complete with cost iron base plate, final tapper plug, nuts, bolts and screws as specified type 410-SP-55 (9 mtr long) with 2 coats of aluminium paint over a coat of primer complete all as specified and directed (Excavation/ Earth wk & PCC for foundation channel, clamps, nut & Bolts to be measured and paid separately)

Excavation in trenches in any type of soil not exceeding 1.5 mtr wide and n.exe 1.5 mtr depth including getting out all as specified and directed.

Excavation in trenches not exceeding 1.5 m wide, exceeding 1.5 m but not exceeding 3.0 m in depth, for foundation etc. in soft/loose soil and getting out complete all as specified and directed.

Returning and filling in including spreading and levelling, including watering and well ramming excavated soil in layers not exceeding 25 cm thick each, back in trenches after cables have been laid and tested, poles, stays , struts have been erected and tested complete all as specified and directed.

Removing excavated material (Soft/hard soil obtained from excavation) not exceeding 50 m and deposting where directed at a level not exceeding 1.5 m above the starting point complete all as specified and directed.

Supply laying old size sub class B bricks common burnt bldg bricks laid incurved or plan complete all as specified and directed.

Supply and laying sand cushioning for cable protection in trenches incl watering and consolidation (8 cm before laying cable and 15 cm over the cable) all as specified and directed. Note: Punned thickness shall be measured & paid.

M&L for plain cement concrete 1:4:8 type D-2 (using 40mm graded crushed stone aggregate) as in foundation of PCCpoles/ struts as specified including necessary form work all as specified and directed.

M&L for plain cement concrete 1:3:6 type C-2 (using 40mm graded crushed stone aggregate) in foundtion of stay assembly etc including necessary form work , all as specified and directed.

M&L for plain cement concrete 1:2:4 type B-1 (using 20mm graded crushed stone aggregate) for coping around poles , including necessary form work finishing even and smooth without using extra cement , all as specified and directed.

M&L for replacement of unserviceable batteries of 2V,100AH from existing battery bank at MRS and supply and fixing new batteries of 02 V, 100 AH Lead acid battery maintenance free Heavy duty with min 36 months warranty all as specified and directed by EinC. Make: Exide/ Amco/ TATA

M&L for tightening and re stringing of existing ACSR over head conductor of any size/type on HT/LT over head line with the help of rope/line wise and tighting the conductor to permissiable sag with and including new aluminium tape/aluminium wire complete all as specified and as directed. (each conductor to be measured seperatly)

M&L for tightening and re stringing of existing GI wire of any size/type on HT/LT over head line with the help of rope/line wise and tighting the conductor to permissiable sag , as the gaurd wire in two rows complete all as specified and as directed.(each conductor to be measured seperatly)

Dismantling of ACSR conductor of any type and size complete all as specified and directed.

S&F aluminium conductor steel reinforced including straining properly on insulators and binding with aluminium binding wire complete all as specified. (Type of new conductors:- weasel/ rabbit/ Mink) Note: Measurements for the purpose of payments shall be made by measuring horinzontal distance between centers of two adjacent poles and adding 3% extra for sag, joints, jumpers etc.

S&F in replacement Galvanised steel wire 4 mm dia on pole for continuous earth wire.

S&F in replacement Cradle guard hexagonal/ rectangular, fabricated with galvanised steel wire 3.15 mm dia.

M & L in repair for disconnecting and taking out worn out jumpers of HT / LT over head line at cut point/ at two pole/ four pole structure of any size any length as per existing after removing binding wire connector of AB switch/DO fuse unit, replacement wolf old jumper with the new ACSR conductor (Mink/ Dog conductor as directed by EIC) jumpers including PVC sleeve in colour coding R/Y/B of same size and length including new binding wire connectors suitable for AB switch/DO fuse unit, with providing conducting jelly complete all as specified and directed. Note: Each Jumper to be measured & paid seperatly.

Taking down old u/s burnt MCCB and S&F MCCB, 630 Amp, 4 Pole, 36 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 500-630 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM94106OOT1OG or equivelent in Schneider/ Seimens.

Taking down old u/s burnt MCCB andS&F MCCB, 400/320 Amp, 4 Pole, 36 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 250-320 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM98403OOQOOG or equivalent in Schneider/ Seimens.

Taking down old u/s burnt MCCB andS&F MCCB, 250 Amp, 4 Pole, 36 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 200-250 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM92109OOP1OG or equivalent in Schneider/ Seimens.

Taking down old u/s burnt MCCB andS&F MCCB, 200 Amp, 4 Pole, 36 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 160-200 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM92109OON10G or equivalent in Schneider/ Seimens.

Taking down old u/s burnt MCCB andS&F MCCB, 200 Amp, 3 Pole, 25 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 160-200 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM90638OONO or equivalent in Schneider/ Seimens.

Taking down old u/s burnt MCCB andS&F MCCB, 160 Amp, 3 Pole, 25 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 125-160 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM90638OOMO or equivalent in Schneider/ Seimens.

Taking down old u/s burnt MCCB andS&F MCCB, 100 Amp, 4 Pole, 25 KA, 415 V, thermal magnetic release type, Ics=100 % Icu, with adjustable overload setting and adjustable short circuit setting , with thermal release range 100-125 Amp including spreader terminals and phase barriers. Make: L&T (d - sine) Cat No. CM90642OOLO or equivelent in Schneider/ Seimens.

M & L in repair LT cable straight through joint heat shrinkable type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor LT cable of size 25 Sqmm to 50 Sqmm x 3.5 core complete all as specified and directed. Make: Densons / Raychems / CCI / M-seal / Birla-3M

M & L in repair LT cable straight through joint heat shrinkable type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor LT cable of size 70 Sqmm to 120 Sqmm x 3.5 core complete all as specified and directed. Make: Densons / Raychems / CCI / M-seal / Birla-3M

M & L in repair LT cable straight through joint heat shrinkable type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor LT cable of size 150 Sqmm to 185 Sqmm x 3.5 core complete all as specified and directed. Make: Densons / Raychems / CCI / M-seal / Birla-3M

M & L in repair LT cable straight through joint heat shrinkable type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor LT cable of size 240 Sqmm to 300 Sqmm x 3.5 core complete all as specified and directed. Make: Densons / Raychems / CCI / M-seal / Birla-3M

M&L in repair LT line PVC Spacers (strip type) for the following :-

Spacer for two wire

Spacer for three wire

Spacer for four wire

Spacer for five wire

Taking out old unservicible cable and Supply, laying & testing in repair for XLPE insulated, armoured, heavy duty electric cable with stranded aluminium conductor, 1100 volts grade, laid in trenches, sleeving through pipes or fixed on poles & walls or laid under floors including jointing with suitable size aluminium lugs complete of size 10 Sqmm nominal cross section x 2 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 16 Sqmm X 4 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 25 Sqmm X 3.5 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 35 Sqmm X 3.5 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 50 Sqmm X 3.5 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 70 Sqmm X 3.5 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 95 Sqmm X 3.5 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 120 Sqmm X 3.5 core complete all as specified and directed.

Ditto all as per item no.78.00 herein before but Size 150 Sqmm X 3.5 core complete all as specified and directed.

Supply and fixing in replacement of GI tubing, light grade, 40 mm bore with all fitting laid in trenches / pole / wall for protection of cables in repairs complete all as specified and directed.

Supply and fixing in repair Aluminium lugs of any type complete all as per of sample of following sizes :-

Supply only HT insulation Tape Roll of size 25 mm width and 20 mtr length in different colour Red, Yellow, Black, Blue Make ISI Marked

Note for all items: All items shall be executed as specified and directed by Engr-in-charge.

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