REPAIR/MAINTENANCE OF POWER TRANSFORMER AND ITS CONNECTED BREAKERS AT DLRL AREA UNDER GE (I) RND KANCHANBAGH, HYDERABAD.

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

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc 25 cm thick using soil complete all as directed.

Removing excavated material to a distance exc 250m but n exc. 500m and depositing where directed at a level n exc. 1.5m above the starting point (Soils) complete all as directed.

Supply and spreading natural dry, clean river sand in trenches for cushioning of cable complete all as directed.

S&F unreinforced precast concrete cable cover class HV type 1 flat of size 300mmx 180mm x 40mm complete all as directed.

Supply, laying, testing and commissioning of Cable with Stranded Compacted Circular Aluminium Conductor, 11000Volts, UE, Conductor Screened with Extruded Semi-conducting compound, XLPE Insulated, Insulation Screened with extruded semi-conducting compound in combination with copper tape cores laid up, inner sheath of Thermoplastic tape, galvanised flat steel strip armoured and overall Extruded PVC Type ST-2 Outer Sheathed cable conforming to IS:7098/II/85 of size 120 sqmm, 3 core with appropriate lugs including taking down unserviceable cable complete all as directed.

Disconnecting the transformer of 2500 KVA capacity and any make, out door/indoor type from platform by opening HV/LV side connection, earth connections etc and shifting it to another location by crane and putting it in proper position including connecting all collections on HV/LV side and earthing strip to neutral and body and testing complete all as specified and directed. Note:- This work shall be carried out as and when required during break downs.

Disconnecting and removing of the unserviceable silica gel breather supply and fixing new silica gel breather with silica gel for1500 KVA transformer capacities of transformers as per existing model and size all as directed.

Supply and fixing HV bushes complete with brass stud and nuts, check nuts, cups etc., complete for transformers of 1500 KVA, 33/11 KV and removing burnt out/unserviceable item complete all as specified directed. Note:-The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transformer oil, opening of top cover by unscrewing nut, bolts washers and connections.

Supply and fixing LV bushes complete with brass stud and nuts, check nuts, cups etc., complete for transformers of 1500 KVA, 33/11 KV and removing burnt out/unserviceable item complete all as specified directed. Note:-The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transformer oil, opening of top cover by unscrewing nut, bolts washers and connections.

Shifting the 33/11 KV transformer of 1500 KVA capacity and any make, out door from platform by opening HV/LV side connection, earth connections etc and shifting it to work shop including transport charges and putting it in proper position including connecting all collections on HV/LV side and earthing strip to neutral and body and testing complete all as specified and directed. Note:- This work shall be carried out as and when required during break downs.

M&L 33KV grade pin type, composite disc insulator of clevis/Tounge/socket or ball type spindle including nuts and bolts of size type as specified by the manufacturer conforming IS- 61109 including all galvanised steel disc fittings as required at site and removing of unserviceable insulators complete all as specified and directed. Make :- Jaipuria/Rashtriya Electrical/Denson or make approved in the state Electricity board

M&L 33KV grade pin type, composite polymeric insulator of clevis/Tounge/socket or ball type spindle including nuts and bolts of size type as specified by the manufacturer conforming IS- 61109 including all galvanised steel disc fittings as required at site and removing of unserviceable insulators complete all as specified and directed. Make :- Jaipuria/Rashtriya Electrical/Denson or make approved in the state Electricity board

Dehydration and filtration of 1.5 MVA transformer 33/11 KVA, HT OCB oil indoor/outdoor/ isolation type at different location with centrifuging machine, manually operated and achieve BDV 60 KV including carrying out oil testing before and after the dehydration process for each OCB complete all as directed. Note : Required oil for top up will be measured and paid separately under relevant item of schedule

Supply only topping up of transformer/OCB oil as per IS :335, break down voltage not less than 60 KV all as specified and directed. Make :- Power Oil/Electrol

Supply, Lay & Test & Commissioning cable 1100 volts with PVC insulated and steel armoured with multi stranded copper conductor of the sizes 10 core 2.5 Sq mm from PT to MRS breakers.

M & L for cutting and removing grass, vegetation bushes etc from surrounding HT installation three times during a period of contract and removing all rubbish to a distance not exceeding 50 m as directed.

Earthing complete with copper plate electrode 600x 600x 3.15 mm thick buried directly in ground vertically to a depth not less than 2.25 mtr deep below normal ground level with top edge of earth plate, not less than 1.5 mtr below normal ground level connected to copper strip earth lead of size 20 x 3 mm by means of bolts, nuts/check nuts and washers etc of galvanised iron, protected by galvanised iron pipe light grade 50 mm dia and connected to main switch/control board including necessary excavation earth work in any type of soil and PCC (1:3:6) type C1 for earth chamber, 40 mm thick RCC cover slab (1:2:4) type B1 with 6 mm dia TMT Bars at 140 mm cc both ways, watering pipe 20 mm dia light grade GI, funnel, wire mesh, lugs, charcoal and salt etc complete all as shown in Electrical plate No. 3 SSR Part I and testing complete including removing unserviceable any type of items all as specified and directed. Note : Copper strip and GI pipe 50 mm dia beyond 7.5 metres per earth will be measured and paid separately.

Ditto all as per item No: 20 above but using 32 x 6 mm galvanised MS strip earthing lead and MS galvanised plate of size 600 x 600 x 6 mm as earth electrode

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 location for loop earthing etc. as required of size 32x6 mm GI strip complete all as specified and directed.

Supply & Fix Gasket replacement for 1.5 MVA transformer (SRC RC 70C Grade)

M&L for XLPE Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm.

M&L for XLPE cable jointing kit for 11 KV (earthed) for outdoor end termination heat shrink type joint complete with jointing material & accessories suitable for 120 to 185 sqmm, 3 core armoured aluminium conduct including taking down old unserviceable jointing kit complete all as directed.

M&L for XLPE cable jointing kit for 11 KV (earthed) for indoor end termination heat shrink type joint complete with jointing material & accessories suitable for 120 to 185 sqmm, 3 core armoured aluminium conduct including taking down old unserviceable jointing kit complete all as directed.

Supply, fixing, testing and commissioning of Air break gang operated switch, triple pole mechanically operated out door type with all fittings/accessories mounted on and including 11 KV HT polymeric insulators and steel channel frame, GI operating rod 25 mm dia of suitable length with operating mechanism worked from ground level vertically operated including locking arrangement for operating handle with and including 7 levers Navtal lock complete suitable for current rating of 400 Amps HT 11 KV working pressure all as specified and directed.

Supply and Fixing Hi-Voltage Insulating Mat, Class C, W.V-33 KV (33000 Volts), ISI marked (Sq.M) HSN 39189090 all as specified and directed

-ditto- as above but insulating Mat of 11000 Volts grade, ISI Marked all as specified and directed

Supply and fixing of SF6/VCB breaker tripping coil 24 VDC/110VDC all as specified and directed by Engr-in-Charge

Supply and fixing of 11KV 1250 amp VCB top bushing all as specified and directed by Engr-In-Charge

Supply and fixing of 11KV VCB breaker CTS 100/1-1 CTs with 0.2 class CTS & 15VA burden all as specified & directed by Engr-in-Charge

Supply and fixing of 11KV 1250 amp VCB bottom bushing all as specified and directed by Engr-In-Charge

M&L for spreading the 20mm coarse aggregate in 33/11KV MRS yard complete all as directed.

M&L for spreading the 40mm coarse aggregate in 33/11KV MRS yard complete all as directed.

Testing and re-setting and checking connection of control cable from transformer tap changer to panel of auto tap changer relay of 1.5 MVA transformer through authorised service engineer, Checking of instruments function and taking corrective action for improvement if found improper, Tap changer panel l/breakers for its proper functioning complete all as specified and directed.

Supply and fix in repairs of Automatic Voltage Regulating Relay (AVR) model EMCO 301E is used to Regulate the secondary voltage of Power Transformers via On-Load Tap Changer (OLTC) all specified and directed.

Supply and fix in repairs of Alarm annucator 12 window of model MBAS-0600 suitable for 33/11KV HT breaker complete all specified and directed.

Material and labour for locating UG cable fault through high voltage UG cable testing van through TSSPDCL or any authorised service provider in HT cables of any size or distance complete all as specified and directed to the entire satisfaction of Engr-in-Charge.

Supply and fix in repair of Impulse Emergency First aid kit box with basic medicine like Band Aid strips of min 20 Nos, Antiseptic cream, Cotton, Surgical tape 1 inch, non sterial gauge swabs, Hydrogen peroxide bottle, medical spirit bottle complete all as specified and directed.

Supply and fix wiring and commissioning including thormostate switch space heater 100w for VCB/SF6 breaker/RMU complete all as directed.

M & L for Inspection and servicing of OLTC of transformer of capacity 1.5 MVA and checking the electrical/manual operation of tap changer mechanism, check the integrity of the active components /contact surface mating for all tap positions, voltage ratio test for all tap position etc including cleaning of the OLTC complete all as directed. Note : The Contrator shall be responsible for correct servicing of the OLTC and servicing to be done through OEM of OLTC.

M&L for rectification , checking & testing of CT, PT wiring, control wiring & primary injection test to be checked infront of Engr-in-Charge complete all as specified and directed.

Supply and fixing in repairs SF6/VCB charger motor connected to the existing breaker complete all as specified and directed.

Supply and fixing in repairs Master trip relay at 33/11KV MRS breaker complete all as specified and directed.

Supply only water seal mastic tape made with EPR & buty rubber of size 45 mm width, 20 KV/mm dielectric strength complete all as specified. Make : Transeal, 3M

Supply & fix Post top insulators, solid core suitable for 33 KV grade complete confirming to IS-731 and as per IS standard all as specified and directed by Engr-incharge. Make : JAIPURIA/WS INDUSTRIES/ BIRLA NGK INSULATORS/ SARAVUNA

M&L for fabricating feeder display board at 33/11KV MRS various safety protection display board on acrylic sheet of thickness 3mm and size as required at site, using ecosolvent print including lamination and fixing to the wall using necessary fixing nuts, bolts and spares as required at site. The job includes removing of old layout board from its position complete all as specified and directed. Note : (i) Electric shock and First aid. (ii) Do's and Dont's in languages (English, Hindi & Telugu)

S&F in repairs LED 210 watt flood light fiitting made up of pressure die cast housing with toughened glass and individual LEDs with street optics and IP 66 protection, 5700K including fixing to pole/wall with necessary nuts, bolts and washers complete all as directed. Make Havells/Philips/Cropmton/Wipro

Supply and fix of monoplast insulation material using for HT cable end terminal in transformer complete all as specified and directed.

M&L for painting at 33/11KV MRS yard Group Bus Bar of colour Red, Yellow & Blue including removal of old painting with scrub papers using 1 coat of red oxide and 2 coats of enamel paint complete all as used with spray painting complete all as specified and directed.

Supply, Install and erect steel tubular swaged pole type 410 SP-55 of 11.0 mtrs long complete with cast iron base plate finial taper plug, pole cap, bolts, nuts and washers pole made out of MS tubing confirming to IS-2713 Part-II, including drilling of holes painting with two coats of bituminous paint internally and externally embedded portion in ground/concrete and painting to exposed surfaces with two coats aluminium paint and one coat of red oxide primer complete all as specified and directed. Note :- Excavation/Earth work in any type of soil/ strata PCC foundation, coping of poles, cross arms, clamps shall be measured and paid separately. Make :- M/s Bombay Tubes/ M/s Jindal Steel Products/ M/s India Tubes Co/ M/s Bharat poles/ National Tubing

Material and Labour for PCC (1:3:6) type C1 with 40 mm stone aggregate for foundation of poles/transformer bed/cable duct foundation/panel base/ chain link supports etc includ

ing necessary form work etc complete all as specified and directed.