REPAIR MAINTENANCE OF HT EXTERNAL SERVICES REPAIR OF HT 2 4 6 POLE STRUCTURE GOD SUB STATION EARTHING LIGHTNING ARRESTOR HT AIR BREAK SWITCH AND REPAIR MAINTENANCE SERVICING OF HT SWITCH GEAR AND RMU MAINT AT NAVAL STATION KARANJA

Amount

Supply, laying in repairs, in trenches /ducts/fixing on pole/STR with suitable size of GI clamp made out of GI strip 32 mm x 6 mm, XLPE HT insulated, screened, earthed, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) of size 3 x 120sqmm with aluminium conductor suitable for 22 KV grade as per relevent IS including latest amendment for IS (ISI marked cable) testing, commissionong along with HT cable route indicator complete all as specified and directed. Note:- (a) Earth work, EHV cable cover, sand coushioning & GI pipe will be measured and paid seperately. (b) High voltage test to be conducted at site with suitable voltage before and after laying of HT cable and reading shall be recorded jointly and test report to be submitted in triplicate to the Engineer-in-Charge. The cost of the same shall be deemed to be included in the unit rate quoted above.

Taking out carefully cable covers & HTcable from excavtaed trench/duct/pole of size 120 sqmm 3 core

Relaying of HT cable of size 120 sqmm 3 core in trench/duct/pipe obtained from ser item no 2

Excavation in trenches for not exc 1.5 mtr wide and not exc 1.5 mtr depth and getting out in soft/loose soil including taking out faulty cable/cable, cable covers and GI pipe complete all as specified and directed.

Removing excavated materials n.exc 50m and depositing where directed at a level n.exc 1.5m above the Starting point.

Returning filling in including spreading levelling watering and well ramming in layers n.exc 25cm complete all as specified & directed.

Supply and lay sand cushioning to under ground HT cable complete all as specified in SSR Part-I and as directed by Engineer-in-charge.

Supply and Laying reinforced precast concrete cable cover laid width wise factory made, class EHV type 1 with peak size 450 mm x 230 mm x 50 mm complete all as specified and directed.

Laying only precast concrete cover of size 450mm x 230mm x 50 mm obtained from srl No 1

Material and labour for drawing 3 phase with aluminium conductor, steel reinforced DOG.

Material and labour notice plate of 1.6 mm thick mild steel sheet vitreous enamelled white, with letters figures and conventional skull and bones in signal red colour and fixed with MS clamps bolts and nuts of approved size for HT 22 KV of size 25 x 20 cm.

Material and labour cross arms, bracing, supports, clamps and back plates fabricated from structual steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicted and inclusive of one primer coat one under coat and two finishing coat of aluminium paint.

Dismantling of unserviceable cross arms of MS Chanel/angle sections etc complete all as specified and directed.

Periodical check/preventive maintenance of HT 22 KV out door ring main units of configuration of 10 way (4 LBS+ 6 VCB) once in a year as per recommendation of manufacturer as under complete all as specified and as directed by Engr-in-charge. (a) Complete servicing (b) Functionel checks (c) Protection checks (d) 22kV outdoor type motorized RMU outdoor enclosure body cleaning (e) Clean and check tightness of cable termination & amp; bushing in cable compartment (f) Checking of sealing of gland plate area (g) Check mechanical interlocks load break switch and earth switch (h) Relay testing and calibration in coordination with upstream and down stream relays (j) Check close & amp; trip coil condition (k) Functional check of trip circuit (l) Clean and check tightness of control wiring (m) Check door alignment (n) Testing/calibration of current transformer (if required) (o) Checking of SF6 gas level and fill if gas pressure is low (p) Clean and check bus PT metering panel (q) Clean and check battery charger (r) To check PT/ Aux. PT fuse and replace if required (s) Clean and check bus PT (t) Clean and check auxiliary PT Note: The work to be carried out by the OEM and submit calibration certificate of relays and current transformer by authorised agenecy.

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (5 LBS+ 5 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (4 LBS+ 5 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (2 LBS+ 5 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (3 LBS+ 4VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (4 LBS+ 3 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (3 LBS+ 3 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (4 LBS+ 2 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (3 LBS+ 2 VCB)

All as per item No 14 above but HT 22 KV out door ring main units of configuration of 9 way (2 LBS+ 1 VCB)

Supply and fix for following spare parts for out door type ring man unit of above configuration covered in item Nos. 14 to 23 complete all as specified and as directed by Engr-in-charge.

Ring LT/CT 30/1A, 2.5VA CL-5P10

LT CT Resin cast iron type ratio - 100/1A, 2.5VA CL-1.0

PT 22KV/Root 3/110V/ Root 3, 50 VA-CL-1/EE090562, 3 Phase

Auxillary transformer 22KV/Rt3/230V,AC, 500VA

HT Fuse 22 KV/3.15A/EE090344

CS FPI -earth fault indicator, E/F-10-100A, with 1NO+1NC, sensor-100-120mm Dia with 3m wire, indicator model : CSFPI-E-A-H

8 way battery and charger I/P 230V, O/P 24V DC, 10A (flat type) (12 V X02 battery)

Digital MFM meter flush mounted, size-96x96mm, AC, class 1.0, Aux-40-300V AC model elite 303, CT & PT ratio programmable with RS 485 port

O/C & E/F self powered relay-CSDPR-V2-300-D-L-N-M-C1 with modbus 1A, AUX supply-18-60V DC O/C minimum setting-10% & E/F- minimum setting-5%

Local Remote sitwch 3 Pole/2W/ EE090691

LBS function motor UN2-30 24VDC / 37303017-01

9 micro switch kit /33111884-01

Relay electm 24V DC 5A 4C /O/ 9423140

Relay electm 230V AC 5A 4C /O/ 9423142

Relay electm 4C/ O BASE / 9423230

Push button flush type (Red) with carrier

Push button flush type (Green) with carrier

Contact element 1 NO green Cat Rb2-BE101

Terminal block fuse type elmex model=KUDF4

VCB function spring charging motor, 120W 24V DC, Type:PMR5

Tripping coil

Closing coil

Micro limit switch, Model-D-38, rating-16A, 1 HP, 125/250V AC

Aux switch 6 NO + 6 NC

Pressure switch/ 33210204-01

10A, 230V AC 2 pole with on/off toggle switch, CAT ; Kaycee

Material and labour GI pipe Light grade with all fittings complete laid in trenches/fixed on pole with suitable clamp all as specified for 80 mm bore of pipe for protection of UG cable.

Material and labour for disc insulator porcelain vitreous brown 145 mm height & 225 mm dia ball and socket type two in series assembly with cast aluminium 4 U bolt tension hardware and tension clamps for conductors working pressure HT 22 KV complete all as specified and directed. Make :- INSUC/ BIC/ Durable.

Material for pin insulator porcelain vitreous brown insulator including one galvanised mild steel spindle two galvanised iron washers and one galvanised iron nut for 22000 volts grade 205 mm dia & 215 mm height, complete all as specified and directed. Make :- INSUC/BIC/Durable

- ditto- as per srl item No. 27, but post type insulator.

Supply and install HT 22 KV Gang Operated Air Break Switch, horizantal 3 insulator type complete with handle, pipe and all mechanical fittings 400 Amps double break rotating type with earth switch. Make:- Atlas/Pactil /ABB / Crompton

Material and labour for overhauling i.e greasing, cleaning of GOD and adjustment of its operation complete all as specified and directed by Engineer-in-Charge.

Material and labour for fixed type top contact for DO fuse units in replacement complete all as specified and directed. Make:- Pactil/ MEI/ ATLAS

Material and labour for fixed type bottom contact for DO fuse units in replacement complete all as specified and directed. Make:- Pactil/ MEI/ ATLAS

Supply and fix following spares of vertical type GOD 22 KV grade, 200 Amps rating of make - M/s Pactil/ ATLAS/ MEI in position as in repairs including testing after repairs:-

(a). Male contact

(b). Female contact

(c). Tinned copper flexible jumper

(d). MS Jumper carrier

(e). Back connector plate

Supply and install HT 22 KV, 200 Amp outdoor type gang operated single break switch Tilting type vertical mounting consisting of hot dip galvanised channel iron base having 2 Nos 22 KV Post type insulator in stack and 3 stack per phase copper or copper alloy high pressure heavily tinned contacts plated MS arcing horns capable of breaking the magnetizing current complete with horizontal connecting square bar, GI pipe as down rod levers coupling & operating handle with locking arrangement. Make:- Pactil/ ATLAS/ Crompton

Supply and install drop out lift OFF HT 22 KV, 200 Amps fuse link consisting of channel iron base having 2 Nos 22 KV post type insulators in stack & 2 stack per phase complete with fuse carrier of SRBP tube with heavily tinned non ferrous metal parts and spring loaded phosphor bronze contact complete manufactured as per IS 9385 complete all as specified and directed. Make:- Pactil/ Crompton/ ATLAS

Earthing complete with GI earth plate electrode 60cm x 60 cm x 6 mm buried directly in ground vertically to a depth not less than 2.25 mtr below normal ground level with top edge of earth plate at a depth not less than 1.5 mtr below normal ground level connected to and including GI strip 32 x 6 mm by means of bolts, nuts and check nuts and washers etc made of GI & connected to Earthing test point and earth dolly all as shown in elect plate No 5 of SSR Pt-I incl all necessary earth work, excavation, PCC chamber, chamber cover with handle (PCC 1:2:4) including 15 mm dia protection pipe & 20 mm dia watering pipe and wire mesh funnel etc all as specified and as directed by Engr-in-charge.

Supply and fix earth continuity conductor or main earthing lead fixed to wall on batten or fixed to pole GI strip 32 x 6 mm all as specified and directed.

Material and labour in repair Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp complete all as specified and directed (Make BHEL/ELPRO/CROMPTON GREAVES)

Periodical check/preventive maintenance of HT 22 KV SF-6 Gas circuit breaker HT 22 KV, 800 Amps, outdoor type controlled by indoor control panel by manufacturer's service Engineer/ authorised channel partner's for the following checks including dismantling/replacing the defective parts for smooth functioning and including testing of breaker for its closing/opening operations on manual and on remote after every check, Make :- Crompton Greaves (a) Servicing (i.e light primary terminals) (b) Functional checks (c) Mechanisum servicing and lubrication (d) Gas leak check (e) Protection checks (Gas density switch operation) (f) Control wiring tightness (g) Power connection tightness (h) Insulation measurement of main circuit (j) Contact resistance of main circuit (k) Check relays for CT, EF & OC trip system

Complete overhauling of relays - 1OV relay + 1 earth fault/O/C + 1 master trip relay, secondary injection on each multiple setting of relays by injecting artificial load to ascertain correctness completely including primary injection through outdoor CT's by injecting artificial load on each multiple setting of relay to check correctness completely all as specified and directed. Including submmission of calibration certificate from authorised agenecy.

Material and labour in repairs outdoor type, oil cooled, single phase, single pole wound primary, live tank OIP insulated current transformer dual core having ratio 120-60/1-1A (ratio change by means of tap on secondary winding) insulation Class A, burden 15 VA Class I for metering & 5P-10 for protection complete all as specified and directed. Make:- Pragati Electricals/ ATLAS/ Kappa Electricals

Supply only the following spare parts of HT 22 KV SF-6, 800 Amps outdoor type circuit breaker controlled by indoor panel :

Limit switch with Braracket

operation Counter Assemblly

Carbon Brushes With Cap

Emery Pads

Auxiliary swicth stack 5 NO+5NC

Door Gasket

chemistic

compound Gauge

compound Gauge(small)

Anabond 680 (1 tbue=100gms)

Local Remote sitwch 3 Pole

Trip Coil (single) -30V Dc

Close Coil-30V DC

Set of Circlips,Split Pins ,Dowel Pins etc

Darina Grease(1 Pkt= 250 Gm)

Torsion Spring Right

Torsion Spring Left

TNC switch 2 Pole

DC Contractor

space heater 80 w

Thermostat

Spring Charging Motor

SF-6 Gas filling device with gas filling

Anti pumping device

Material and labour in repairs Low viscosity transformer oil having minimum di-electric strength 60 KV conforming to IS - 535. Make :- Savita / BP Power Oil

Material and labour in repairs 'T' hard connector made of cast aluminium suitable for ACSR conductor complete all as specified and directed.

Material and labour in repairs 4 'U' bolt hardware made of cast aluminium suitable for end disc insulator complete all as specified and directed.

Material and labour in replacemnt Bi-metallic aluminium straight connector for C.T. 32mm x DOG conductor complete all as specified and directed.

Material and labour in replacemnt Bi-metallic aluminium straight connectro for C.T. 12mm x DOG conductor complete all as specified and directed.

Material and labour in repairs brass spindle with 32mm dia for CT's with Universal bushing complete all as specified and directed.

Supply and laying in repairs synthetic Rubber insulated mats 3 mm thick for voltage upto 33 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as specified and directed(Make :- ATLAS /Jyoti)

Material and labour for Heat shrinkable cable end termination joint including jointing Kit outdoor type suitable for earthed 3 core 95/120 sqmm HT 22KV XLPE aluminium conductor cable and HV test after jointing and connecting up complete all as specified and directed. Make:- Raychem/ XICON/ M-Seal/Denson/3M

Material and labour for Heat Shrinkable straight through jointing kit with all necessary jointing material suitable for HT 22 KV XLPE 3 core 95/120 sqmm aluminium conductor cable complete all as specified and directed. Make- Raychem/ XICON/ M-Seal/Denson/3M

Disconnecting HT 22 KV grade XLPE cable of any size from structure/pole/transformer for finding fault by computer aided fault finding machine and locating exact location by thumping and necessary earth work to expose faulty cable piece and cutting fauly cable and testing remaining cable with High voltage tester to with stand the cable as normal working pressure HT 22 KV complete all as specified and directed by Engineeer-in-Charge. Note :- Excavation and earth work and Material and labour for joints shall be measured and paid udnder relevant Item of schedule separately.

Labour only for upkeep of HT out door structure by removing grass, shrubs, trimming branches of trees near to structure removing cleaning, screening for mud etc and relaying of same stone aggregate complete all as specified and directed.

Supply and fix Auxiliary High speed Master trip ralay, Type AVAJH13 , contact 3 NO+2 NC HR , Auxiloiary Voltage : 24 VDC or 110 VDC Make Ashida

Supply and fix 3 phase Over Current + Earth Fault Relay with High Set & RS -485 Port with IDMT and definite time characteritics,password protection, Aux supply (V) of 24-240V, AC/DC, Output contacts 4 No L&T Make - CAT Part No.- MC61CNX4000 Model - MC61Cnx.

Preparation of old painted surface including removing old paint, rust, dust, oil, grease and any other foreign deposits by paint removers or burning off by blow lamps and cleaning with scrapers and chemicals for removal of rust for any number of coats, any width or girth & Material and labour application of aluminium paint one coat for 6 pole stucture (steel or tubular)/ channels/angles /GODs etc. all as specified and directed.

(a) - ditto- as per srl item No. 56, but 4 pole stucture

(b) - ditto- as per srl item No. 56, but 2 pole stucture

Supply and fix following spares of Horizantal type GOD 22 KV grade, 400 Amps rating of make - M/s Pactil/ ATLAS/ in position as in repairs including testing after repairs:- (a). Male contact

(b). Female contact

(c). Copper rod/Plate

(d) Copper Bure conductor of 4 SWG

(e) Copper Bure conductor of 6 SWG

Material and labour for cutting and fixing of chequered plate for 4mm thick for inside/outside sub station room openable cable duct with complete fixing arrangement all as specified and directed.

Material and labour for Do fuse Element stranded silver/Tin coated copper wire soldered joint with ferrule and fire resistant tube type rating 2.5 Amps complete all as specified.

- ditto- as per srl item No. 59, but rating 5 Amps

- ditto- as per srl item No. 59, but rating 10 Amps

- ditto- as per srl item No. 59, but rating 15 Amps

- ditto- as per srl item No. 59, but rating 20 Amps

- ditto- as per srl item No. 59, but rating 30 Amps

- ditto- as per srl item No. 59, but rating 40 Amps

- ditto- as per srl item No. 59, but rating 60 Amps

- ditto- as per srl item No. 59, but rating 80 Amps

- ditto- as per srl item No. 59, but rating 100 Amps

Material and labour for PCC type C2, 1:3:6 using (40 mm gradded stone aggregate) in foundations complete all as specified and directed.

Supply and filling in layers n.exc 25cm thick with 40mm graded coarse aggregates in structures complete all as specified and directed.

Material and labour for fixing of GI Nut and Bolts with washer of different sizes in HT structures complete all as specified and directed.

Material and labour for self bonding electrical HT tape of size 1.9cmX9.15mX0.076cm for cable joints, transformers, HT structure joints. Make : 3M

Material and labour for HT lugs in the rectification of HT faults of size 95 Sqmm

Material and labour for HT lugs in the rectification of HT faults of size 120 Sqmm

Material and labour for HT lugs in the rectification of HT faults of size 150 Sqmm

Material and labour for HT lugs in the rectification of HT faults of size 185 Sqmm

Material and labour for HT lugs in the rectification of HT faults of size 240 Sqmm

Material and labour for Petroleum Jelly in HT Nut bolt joints, T- joints, U joints in CTs and PTs on the HT structure.

Supply only for HT gloves for 22 KV HT line.

Supply and replace 2V, DC, VRLA cell and connect them properly with connecting leads inside battery rack suitable for control DC circuit of 22 KV VCBs and after assembling required voltage is 110V / 100AH including taking down old complete all as specified and directed by Engineer-in-Charge. Make: AMARA RAJA / EXIDE / AMARON

Atul Enterprises (BID ID -3089606)

SREE HARITHA ASSOCIATES (BID ID -3088521)

pk Enterprises (BID ID -3082525)

ELECTRO ASSOCIATES (BID ID -3082399)

Radha Engineering Services (BID ID -3087953)