Periodical Repair / Maintenance Of Several Equipments At MRSS, Elec Sub Stn, 11/33 KV Line Of E/M Services, Ht Systems and Other Miscellaneous Works At Nagtalao Under AGE (I) Nagtalao

Amount

Excavating in trenches n.exc 1.5 m width and n.exc 1.5m in depth for taking out cable and cable cover and getting out in soft soil complete all as specified and directed by Engineer-in-charge.

Returning, filling in soil including spreading levelling, watering and well ramming in layers n.exc 25 Cm complete all as specified and directed by Engineer-in-charge.

Removing excavated materials soil n.exc 50 mtr depositing where directed at a level n.exc 1.5 m above the starting point complete all as specified and directed by Engineer-in-charge.

M&L for sand cushioning to PVC/ XLPE cables with tibba sand and punning to provide required cover to UG cables complete all as specified and directed by Engineer-in-charge. Note :- For the purpose of payment only punned thickness will be measured

Material and labour for laying 40 to 50 mm thick quarry faced stone slab 25 to 30 cm wide and not exceeding 60 cm long laid dry abutting each other with gap between adjacent patties n.exc 10 mm for UG cable protection complete all as specified and directed by Engineer-in-charge.

Taking out existing HT under ground cable 11KV/33KV volts grade PVC insulated armoured aluminium conductor of size 185 sqmm to 300 sqmm from trenches/duct/pipes, on walls, poles of following unserviceable cable from site to store complete all as specified and directed by Engineer-in-charge.

Supplying ,laying, jointing, testing and commissioning of XLPE insulated screened PVC bedded galvanised steel strip or wire armourred electric power cable (Heavy duty ) with aluminium conductor 11000 volts grade, cross sectional area 185 sqmm 3 core suitable for 11KV earthed systems complete all as specified and directed by Engineer-in-charge.

Supplying ,laying, jointing, testing and commissioning of XLPE insulated screened PVC bedded galvanised steel strip or wire armourred electric power cable (Heavy duty ) with aluminium conductor 33000 volts grade, cross sectional area 300 sqmm 3 core suitable for 33 KV earthed systems complete all as specified and directed by Engineer-in-charge.

M&L for 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 185 sqmm complete all as specified and directed by Engineer-in-charge.

M&L for 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 185 sqmm complete all as specified and directed by Engineer-in-charge.

M&L for 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 185 sqmm complete all as specified and directed by Engineer-in-charge.

M&L for Cable jointing kit for 33 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 300 sqmm complete all as specified and directed by Engineer-in-charge.

M&L for Cable jointing kit for 33 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 300 sqmm complete all as specified and directed by Engineer-in-charge.

M&L for Cable jointing kit for 33 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 300 sqmm complete all as specified and directed by Engineer-in-charge.

M&L for finding the fault in 185sqmm 3 core 11Kv cable with the help of fault locator including necessary excavation work complete all as specified and directed by Eng-in-charge.

M&L for finding the fault in 300sqmm 3 core 33KV cable with the help of fault locator including necessary excavation work complete all as specified and directed by Eng-in-charge.

Taking out old damaged GI cable protection pipe and supply and fix light grade GI pipe of bore 150 mm as specified and directed by eng-in-charge.

Taking out old unserviceable 11 KV pin insulator including taking out 11 KV OH ACSR conductor and Supply and fix 11 KV pin type , porcelain, vitreous, white, brown, green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut , 150mm height, 150mm dia for 11000 Volts grade suitable for fixing of insulator on HT pole including refixing the OH ACSR conductor at the same place incl binding the conductor to insulator with new binding wire complete all as specified and directed by Engineer-in-charge.Make : BHEL, jayshree, ABB, Pactil , Areva

M&L cross arms, bracings, supports, clamp and back plates fabricated from structural steel section including nut/bolts washers welding bending cold or hot drilling holes for bolts of any shape and size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint including taking out old unserviceable complete all as specified and directed by Engineer-in-charge.

Taking out old unserviceable silica gel breather and Supply & fix new Silica Gel breather having threaded bore complete all as specified and directed by Engineer-in-charge.

Taking out old unserviceable silica gel and Supply & filling new silica Gel dehydrating breathers in crystals complete all as specified and directed by Engineer-in-charge.

Taking out old unserviceable PG Clamp and supply and fix new PG clamp in repair complete all as specified and directed by Engineer-in-charge.

Supply and topping of transformer oil with adequate dielectric strength as mentioned in relevent IS as and when required to top up as replacement /evaporation ,leakage all as specified and directed by Engineer-in-Charge. Make : Shell , Power oil , servo

Dehydration of Transformer oil (mounted on plateform/ poles etc) with the help of filtering and drying plant by mechanical machine of suitable capacity to achive dielectric strength of 50 KV complete all as specified and directed by Engineer-in-charge. Note : a) The filteration of the transformer oil is to be carried out at different sub station in AGE (E/M) Nagtalao and also at Main receiving sub Station. b) The report along with sample of oil before filteration & after filteration to be submited by contractor for approval by AGE(E/M) c) The filteration is to be carried out on load i.e. without switching off supply. d) Transformer oil for topping up will be paid separately under relevant item of Sch 'A'.

Disconnecting of existing HT 33 KV 3 phase indoor type SF6 complete with indoor controlling box from electric supply and overhauling the same as per manufacturer instruction with complete servicing including gas filling, relay caliberation, oiling and greasing the mechanical moving parts such as moving contacts, plunger & tripping and closing lever and checking the complete tripping/closing system as per manufacturer instruction all as directed by Engr-in-charge.

Disconnecting of existing HT 11 KV 3 phase indoor type VCB complete with indoor controlling box from electric supply and overhauling the same as per manufacturer instruction with complete servicing including relay caliberation, oiling and greasing the mechanical moving parts such as moving contact, plunger & tripping and closing lever and checking the complete tripping/closing system if required replacing the actuating and the restraining coils as per manufacturer instruction all as directed by Engr-in-charge. .

Disconnecting of existing LT 11 KV 3 phase indoor type ACB 1600 Amps complete with indoor controlling box from electric supply and overhauling the same as per manufacturer instruction with complete servicing including relay caliberation by L&T certified engineer, oiling and greasing the mechanical moving parts such as moving contact, plunger & tripping and closing lever and checking the complete tripping/closing system if required replacing the actuating and the restraining coils as per manufacturer instruction complete all as specified and directed by Engineer-in-charge.

Supply, installation,testing and commissioning, in repair and replacement, HT 33 KV 3 phase 50 HZ, Indoor type, totally enclosed metal clad switch gear complete with Vacuum Circuit Breaker having rupturing capacity upto 1000 MVA , over load and earth fault protection , ammeter, voltmeter and rating up to 1250 Amp as per existing technical specification and configuration including necessary foundation and all petty items required for fixing complete all as specified and directed by engr-in-charge.

Supply, installation, testing and commissioning, in repair and replacement, HT 11 KV , 3 phase 50 HZ, Indoor type, totally enclosed metal clad switch gear complete with Vacuum Circuit Breaker having rupturing capacity upto 350 MVA , over load and earth fault protection , ammeter, voltmeter and rating up to 630 Amp as per existing technical specification and configuration including necessary foundation and all petty items required for fixing complete all as specified and directed by engr-in-charge.

Dismantling and taking down defective/damaged HT 11 KV PT and S & F, testing & calibration of 11 KV single phase indoor, Epoxy cast PT of ratio 11KV/√3/110/√3 class 1.0, burden 100 VA/Phase insulation level 28/75 KV, voltage factor 1.2 Cont and 1.5 for 30 Sec, confirming to IS-3156 incl suporting insulator complete all as specified and directed by Engineer-in-charge.

Supply and fix in repair Current Transformer conforming to IS: 3156-1992 , rated voltage HT 33 KV, rated frequency-50 HZ, HSV-12, IL-35/75 KV, VF - 1.2 CONT/1.5 for 30 sec , three phase complete all as specified and directed by Engr-in-Charge.Make:-ABB or its equivalent

Supply and fix in repair Current Transformer conforming to IS: 3156-1992 , rated voltage 11 KV, rated frequency-50 HZ, HSV-12, IL-35/75 KV, VF - 1.2 CONT/1.5 for 30 sec , three phase complete all as specified and directed by Engr-in-Charge.Make:-ABB or its equivalent

Supply and fix Over Current and Earth fault protection relay suiable for 33/11 KV VCB Panel complete all as specified and directed by Engr-in-Charge.Model SLR 140 C of CG or its equivalent.

Supply and fix Master Trip relay suiable for 33/11 KV VCB Panel complete all as specified and directed by Engr-in-Charge.Make:-CG/Schneider/Seimens

Supply and fix announciator as per existing make and capacity complete all as specified and directed by Engr-in-Charge.CG/Schneider/Seimens

Supply and fix in repair Buch, WTI, OTI Trip relay suitable for 33/11 KV VCB Panel complete all as specified and directed by Engr-in-Charge.Make:- CG/Schneider/Seimens

M&L for checking,tightening & replacement of jumpers,clamps connectors of bus bar for the transformer in the yard/sub station on poles etc complete all as specified and directed by Engr-in-charge.

M&L for removal of bird nest and foreign material from the overhead line complete all as specified and directed by Engineer-in-charge.

M&L for resagging of overhead conductor section of 33KV including binding/re-binding of conductor with suitable size of wire and providing of jumpers at the ends as per site requirement complete all as specified and directed by Engineer-in-charge.

M&L for replacement of rusted/broken GI earth wire of 4mm dia on overhead line by providing reels and clamps and any other items required for fixing as per site requirement complete all as specified and directed by Engr-in-Charge.

Dismantaling of old ACSR conductor complete all as specified and directed by Engineer-in-charge.

M&L for replacement of old ACSR conductor with new ACSR conductor including binding of wire and providing jumpers at the end as per site requirement complete all as specified and directed by Engineer-in-charge.

Fixing and restringing of old serviceable (ACSR) conductor obtained from above item before including binding complete all as specified and directed by Engineer-in-charge.

Dismantling of existing defective HT 11 KV Gang operated air break switch and Supply and installation, commissioning and testing of HT 11 KV outdoor type triple pole gang operated air-break switch suitable for horizontal mounting rotating type with 9 insulator 200 amps current rating complete mechanically operated mechanism from ground level consisting of operating rod of 25 mm bore medium grade GI pipe of suitable length with locking arrangement, flat iron clamp 50x6mm including MS channel of suitable size and length for fixing GOD including bolts, nuts and washers complete all as specified and directed by Engineer-in-charge. Make:- Jaipuriya or its equivalent

Supply and fix undermentioned spares for gang operating switch/DO fuse 33/11 KV complete all as specified and directed by Engr-in-charge. .Make - Jaipuriya or its equivalent :- (a) Male Contact/moving contact Blade heavy duty high conductive metal cap 200/400 amp for GO switch11 KV

All as per Srl Item No 45 above but Male Contact/moving contact Blade heavy duty high conductive metal cap 200/400 amp for GO switch 33 KV

All as per Srl Item No 45 above but Female Contact/Fix contact Jaw heavy duty high conductive metal cap 200/400 amp for GO switch 11 KV

All as per Srl Item No 45 above but Female Contact/Fix contact Jaw heavy duty high conductive metal cap 200/400 amp for GO switch 33 KV

All as per Srl Item No 45 above but Fixtop contact/L contact or Bottom contact for DO fuse 11 KV

All as per Srl Item No 45 above but Fixtop contact/L contact or Bottom contact for DO fuse 33 KV

All as per Srl Item No 45 above but Post insulator for 11 KV

All as per Srl Item No 45 above but Post insulator for 33 KV

Supply and fix in repair Digital Volt meter suitable for HT VCB Panel complete all as specified and directed by Engr-in-Charge.Make:-Alpha + V of ELMEASURE or its equivalent

Supply and fix in repair Digital Ammeter suitable for HT VCB Panel complete all as specified and directed by Engr-in-Charge.Make:-Alpha + V of ELMEASURE or its equivalent

Supply and fix in repair Auxialiary relay for Buch, WTI,OTI Alarm suitable for HT VCB Panel all as specified and directed by Engr-in--Charge. Model: CGXH1 3 element Aux relay or its equivalent

Dismantling and taking down defective/damaged HT 33 KV PT and S & F, testing & calibration of 33 KV single phase indoor, resin cast PT of ratio 33KV/√3/110/√3 class 1.0, burden 100 VA/Phase insulation level 36/70/170 KV, voltage factor 1.2 Cont and 1.9 for 30 Sec, confirming to IS-2705 complete all as specified and directed by Engineer-in-charge.

Supply and fix in repair L 1, L 2, and L 3 Digital phase indicator ,input current-1A or 5 A , Acc Class : CL 1.0 complete all as specified and directed by Engineer-in-charge. Model Conserv EM 6436 of schneider or its equivalent

Taking out old unserviceable 33 KV pin insulator incl taking out 33 KV OH ACSR conductor and supply and fix 33 KV pin type, porcelain, vitreous, insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut for fixing of insulator on HT pole incl refixing the OH ACSR conductor at the same place incl binding the conductor to insulator with new binding wire complete all as directed. Make: Jaipuria brothers, BHEL, ABB or equivalent.

Taking out old unsv stay assembly and Supply and fix stay assembly complete comprising of MS galvanized stay plate 30cm x30cmx6mm , MS galvanized stay rod 20 mm dia with nut 180 cm long , MS galvanized stay bow 40cm long with 2 Nos galvanized thimbles with and including all fittings incl Excavation, PCC for foundation (PCC 1:3:6) , loop type insulator, shackle & clamp complete all as specified in SSR 2009 Part I.

Taking out old stay strand wire and Supply and Fix GI stay strand wire of size 7/4mm complete all as specified and directed by EIC.

Supply and fix in repair Power pack unit of 110 V DC out put to existing HT VCB Panel of 33/11 KV complete all as specified and directed by Engr-in-Charge.

M&L for spray painting minimum two coats on old surface with synthetic enamel aluminium paint (ICI asian, Burger or equivalent make) with preparation of surfaces duly rubbing the surfaces with sand paper etc complete in all respect on steel works Note:- Rates are inclusive of paint, paint brush, sand paper, spray gun and any scaffolding material , if required On pole tower of 33 KV complete all as specified and directed by Engineer-in-charge.

Trimming and prunning upto safe distance from the over head lines including cutting branches of tree of size not exceeding 3" dia complete all as directed at site and disposel of branches/bushes to distance and cleaning the site all as directed by E-I-C Note :-(i)The necessary man power tool and plant , cutting tools and JCB if required for cutting/ prunning of branches is deemed to incl in the rate quoted for the job (ii) Proper shut down will be taken from JE E/M only :- (a)Up to 2" dia of branches

All as per Srl Item No 64 above but From 2" to 3" dia of branches

Supply anf fix Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp suitable for 11000 volts all as specified and directed by eng-in-charge.

Supply anf fix Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp suitable for 33000 volts all as specified and directed by eng-in-charge.

M&L for all T&P expenditure for testing of power transformer 3.0 MVA of 33/11 KV at MRSS Nagtalao, following test shall be carried out at site by calibrated instrument (calibration certificate shall be submitted) complete all as specified and directed by Engneer-in-Charge. (a) Magnetic balance test (b) IR Test (c) Open circuit test (d) Short circuit test (e) Transformer oil test (Test shall be carried out at govt approved lab) (f) water content test (g) Neutralisation value (total acidity) test. Complete all as specified and directed by EIC.

M&L for all T&P expenditure for testing of power transformer 1.6 MVA of 33/11 KV at MRSS Nagtalao, following test shall be carried out at site by calibrated instrument (calibration certificate shall be submitted) complete all as specified and directed by Engneer-in-Charge. (a) Magnetic balance test (b) IR Test (c) Open circuit test (d) Short circuit test (e) Transformer oil test (Test shall be carried out at govt approved lab) (f) water content test (g) Neutralisation value (total acidity) test. Complete all as specified and directed by EIC.

M&L for all T&P expenditure for testing of Step up power transformer 630 KVA of 0.432/11 KV at MRSS Nagtalao, following test shall be carried out at site by calibrated instrument (calibration certificate shall be submitted) complete all as specified and directed by Engneer-in-Charge. (a) Magnetic balance test (b) IR Test (c) Open circuit test (d) Short circuit test (e) Transformer oil test (Test shall be carried out at govt approved lab) (f) water content test (g) Neutralisation value (total acidity) test. Complete all as specified and directed by EIC.

M&L for all T&P expenditure for testing of Distribution transformer 800 KVA of 11/0.433 KV at MRSS Nagtalao, following test shall be carried out at site by calibrated instrument (calibration certificate shall be submitted) complete all as specified and directed by Engneer-in-Charge. (a) Magnetic balance test (b) IR Test (c) Open circuit test (d) Short circuit test (e) Transformer oil test (Test shall be carried out at govt approved lab) (f) water content test (g) Neutralisation value (total acidity) test. Complete all as specified and directed by EIC.

M&L for all T&P expenditure for testing of Trolly mounted Distribution transformer 800 KVA of 11/0.433 KV at MRSS Nagtalao, following test shall be carried out at site by calibrated instrument (calibration certificate shall be submitted) complete all as specified and directed by Engneer-in-Charge. (a) Magnetic balance test (b) IR Test (c) Open circuit test (d) Short circuit test (e) Transformer oil test (Test shall be carried out at govt approved lab) (f) water content test (g) Neutralisation value (total acidity) test. Complete all as specified and directed by EIC.

M&L for plate earthing complete with galvanized mild steel plate electrode 60 cm x 60 cm x 6.3 mm thick buried directly in ground vertically (in earth pit not less than 2.25 metre deep below ground level) with the top edge of earth plate at a depth not less than 1.5 metre below normal ground level, the earth electrode surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm in alternate layers on all sides and including GI earth strip of 32x 6 mm as earth electrode bolted with GI nuts, bolts & check nuts and as per electrical plate No. 3 rivetted to earth (Plate) electrode at one end and connected to Panel at the other, earth strip protected by and incl GI pipe 40 mm dia (medium grade) from top of electrode to Panel and also incl watering pipe GI pipe (medium grade) 20 mm bore from bottom of earth pit to top of electrode complete with earth pit in PCC 1:2:4 type B0 using 12 mm graded crushed stone aggregate, RCC cover with handle, funnel, wire mesh including necessary excavation & earth work, etc as shown on electrical plate No 5 of SSR Part I.

M/S JAGDAMBA ENTERPRISES