REPAIR/MAINTENANCE OF RMU (RING MAIN UNIT) IN DOMESTIC AREA, VCBS OF VARIOUS LOCATIONS AND CONNECTED ITEMS UNDER GE (AF) JAMNAGAR NO 1.

Amount

Preventive maintenance for indoor and outdoor type RMU (safeplus or safering type) comprising preventive maintenance activities and repairing the RMU during breakdown / emergency and routine testing all as specified below:- Note:- Quoted rates shall be deemed to include for the following:- (i) Preventive maintenance shall be carried out once every six months including opening the top cover and bottom cover, cleaning all parts, if bottom of panel is found open it will be filled with filling materials, in top of the RMU if any lekage is found it will be repaired , including any welding work required to be done at site . (ii) Contractor shall also be responsible for repairing the RMU during any breakdown / emergency. (iii) routine testing shall be carried out once in a six months.

A. The following scope of work shall be included under preventive maintenance :-

(a) Condition monitoring as per the scope defined:-

(i) Condition based & Predictive maintenance.

(ii) Preventive maintenance.

(iii) Breakdown maintenance.

(iv) Overhauling, reconditioning & testing of existing equipment.

(v) Failure analysis for major breakdown

(b) Performance Health Check-up

(i) Checking of CB & Isolator mechanical & electrical operation Closing & tripping

(ii) Checking of Breaker close & open operation.

(iii) Mechanism Critical setting & adjustment shall be done.

(iv) Lubrication of mechanical critical part of Circuit breaker.

(v) Lubrication of spring charging mechanism.

(vi) Operational Movement & alignment.

(vii) Alignment of open cable doors.

(viii) Physical healthiness of switches, indication lamp, auxiliary relay etc.

(ix) Bus bar tightness, bus joint healthiness checks & contact resistance check.

(c) Routine Tests(performed once in contract period)

(i) Testing of protection relays.

(ii) CB contact resistance, contact condition the pole.

(iii) Interrupter health check by HV test

(d) Reports:

(i) Relay test report

(ii) Breaker test report

(iii) CT/PT test report

Failure reports of major failure-Which includes failure mechanism analysis & remedies Interpretation of condition monitoring data.

B. Check list for breaker preventive maintenance :-

Mimic diagram checking YES / NO

Spring Charging of HT breaker -by manual operation YES / NO

Spring Charging of HT breaker -by motor if available YES / NO

All limit switch operation healthiness for motorized module YES / NO

Closing of breaker by push button YES / NO

Opening of breaker by push button YES / NO

BKR on/ off indication sticker YES / NO

Disconnector closing and opening YES / NO

Disconnector Earth switch closing and opening checking YES / NO

Disconnector ON/Off indication sticker YES / NO

Remote close of BKR if closing coil available YES / NO

Remote opening of BKR by series trip coil YES / NO

Remote opening of BKR by shut trip coil if available YES / NO

Padlock Movement of Disconnector and Breaker YES / NO

Interlock between breaker On condition and Disconnector YES / NO

Interlock between BKR OFF condition and Disconnector YES / NO

Cable door interlock with Earth switch on/off condition YES / NO

Handle locater of Disconnecter healthyness YES / NO

Interlock of cable door with respect to BKR and disconnector YES / NO

Relay self power battery healthiness - if self power YES / NO

Relay display healthiness YES / NO

Remote Closing - if available YES / NO

Series trip coil healthness. YES / NO

Remote tripping of relay YES / NO

Shunt trip coil healthiness/ remote tripping YES / NO

termination boots position / termination bushing cover YES / NO

Proper Termination boot earthing for 22/33 KV YES / NO

Termination Tightness ( 30/ 50 Nm) YES / NO

Terminated cable support condition YES / NO

Cable gland sealing checking YES / NO

VPIS healthiness OK YES / NO

CT ratio installed in BKR compartment YES / NO

CT connection tightness YES / NO

Cable boot fixing healthiness YES / NO

cable boot earthing for 22 KV and 33 KV YES / NO

Cable support YES / NO

Cable Gland provision YES / NO

C. Check list for RMU preventive Maintenance :-

Grouting of Frame/ channel on foundation tightened YES / NO

Earthing connection of RMU YES / NO

Outer Visual inspection of RMU YES / NO

Sealing of RMU / any opening for insertion RMU . YES / NO

SF6 gas level indication position in zone YES / NO

DC power pack operation healthiness - 24 V YES / NO

Battery 24 V Dc heathiness YES / NO

230 V AC supply requirement / availability YES / NO

Coupling Box Cover fixing if RMU extensible and coupled YES / NO

Coupling Bus bar tightness YES / NO

Coupling boot earthing YES / NO

Not any opening on box up YES / NO

Electrical testing status YES

D.Operational check points for isolator / cable switch Module :-

Operational Check Points for Isolator Module

Mimic diagram checking YES / NO

Isolator / cable switch on/off manual operation by handle YES / NO

Isolator / cable switch on/off operation by motor operation if available (Locally ) YES / NO

Isolator / cable switch on operation by motor operation if available ( Remotely ) YES / NO

Isolator / cable switch off operation by motor operation if available ( Remotely ) YES / NO

All limit switch operation healthiness for motorized Rmu YES / NO

Padlock Movement of Isolator / Cable switch YES / NO

Isolator on/ off indication sticker YES / NO

Earth switch Operation YES / NO

cable door opening and closing smoothness YES / NO

Cable door interlock with Earth switch on/off condition YES / NO

Handle locater of Disconnecter healthyness YES / NO

VPIS heathiness YES / NO

Termination tightness YES / NO

Cable boot fixing healthiness YES / NO

cable boot earthing for 22 KV and 33 KV YES / NO

Cable support YES / NO

Cable Gland provision YES / NO

(i) RMU of make ABB & Crompton are installed at site. Preventive maintenance, repairing the RMU during breakdown / emergency and routine testing shall be carried out through authorised representative OEM all as specified and directed by Engineer-in-Charge.

(ii) Spare parts required for Preventive maintenance, repairing the RMU during breakdown / emergency will be measured & paid separately as supply & fix in repair. Make of spare part shall be as recommended by the OEM.

(iii) Contractor shall submit necessary documentary evidence that Preventive maintenance, repairing the RMU during breakdown / emergency and routine testing has been performed by the OEM

(vi) RMU any type any way including VCB, load break switch and metering unit will be measured as one unit for payment.

(v) After Preventive maintenance, repairing the RMU during breakdown / emergency RMU shall be tested as directed by the Engineer-in-Charge and test result in triplicate copy shall be submitted to Engineer-in-Charge

Following spare part shall be used for SAFEPLUS RING MAIN UNIT

S&F in repair Bushing 400 Series Bolted Type item Code NHP201699R1

S&F in repair O Ring 72 x 6 BUSHING 400 SERIES BOLTED item Code NHP402076P15

S&F in repair SHAFT FOR OPERATING HANDEL item code NHP304961P1

S&F in repair 2PA Mechanism w/o hex rod item code NHP101985R002

S&F in repair TRIP COIL SAFEO FORCE AMPL WIC & ASHDA item code 1VDP000142R1

S&F in repair Linkage between K and A item code NHP201703R1

S&F in repair PUSH BUTTON RED W/ LABEL "O" item code 1SFA616199R1104

S&F in repair PUSH BUTTON GREEN W/LABEL "I" item code 1SFA616199R1106

S&F in repair BRACKET 'A' Mechanism hldg 2 push buttons item code NHP201536P1

S&F in repair Opening Finger, Manual Operating_D item code 2RAA011099A0001

S&F in repair Closing Finger, Manual Operating_C item code 2RAA011100A0001

S&F in repair BRACKET for 'K' Mechanism item code NHP201495P1

S&F in repair BRACKET FOR CT MTG RMU RHS item code NHP304233P1

S&F in repair 24 kV VPIS cord item code PTMVT120702-01

S&F in repair Capacitor Unit, VPIS, 9-15kV without cord item code YN1V400916-587

S&F in repair PRESSURE REFILLING EQUIPMENT( KAR-6) item code IN54280001-K

S&F in repair RONIS KEY WITH HARDWARE item code 4200669056.9005

S&F in repair RONIS LOCK & KEY FOR RMU WITH KEY A item code 4200040617.1001

S&F in repair RONIS KEY INTERLOCK OF LBS WITH KEY C item code 4200130305.9001

S&F in repair RONIS INTERLOCK EL11P OF LBS WITH KEY B item code 4200033538.9005

S&F in repair Fuse Holder Assembly item code NHP201487R001

S&F in repair TERMINAL PROTECTOR SILCAB (RAYCHEM) for 11kV item code 1VYN303050-060

S&F in repair T SHROUD (NEW) for 11kV item code 1VYN403250-92N

S&F in repair Reducer Stud for Cable Bushing_A 128 item code 2REA024265P0001

S & F in repair Trip Coil Only Y1 Control Volt 24 VDC item code NHP304453R1

S & F in repair Close Coil Only Y2 Control Volt 24 VDC item code NHP304453R6

S & F in repair O Ring 65 x 5 For LBS Mech Bushing item code NHP402076P24

S & F in repair Spring charging Motor with Gear 24 V DC item code NHP201491R1

S & F in repair WIKA make Manometer+Gas density switch item code YN1V400929-420

S & F in repair ELECTRONIC MOTOR KIT FOR C MODULE-MGVCL item code 4200901778.9004

S & F in repair STANDARD MOTORISED KIT FOR V MODULE item code YN1V400922-023

S & F in repair BRACKET-FOR RMU (New Indication) item code NHP304264P1

S & F in repair Position indicator item code 1VDP001531P001

S & F in repair Indicator local item code 1VDP002477P001

S & F in repair Shaft item code 1VDP002579P001

S & F in repair Indicator Flag C-module OFF item code 1VYN403050-496

S & F in repair Indicator Flag C-module ON item code 1VYN403050-498

S & F in repair Indicator Flag C-module PLAIN item no 1VYN403050-499

S & F in repair Manometer+Gas density switch(CO contact) item code 4200800466.5012

S & F in repair STANDARD MOTORISED KIT FOR C MODULE item code YN1V400922-022

S & F in repair BATTERY -12VDC ,12AH item code 1VYN401350-173

S & F in repair Capacitor Unit,VPIS 15-24kV without cord item code YN1V400916-588

S & F in repair S series bushings item code 2REA020480A0001

S & F in repair O ring for S series bushing item code 3WEA010283P0001

Following spare part shall be used for SAFELINK RING MAIN UNIT

S & F in repair GEARED MOTOR 24VDC (MS) item code No 1VCR012079G0001

S & F in repair SHUNT CLOSING RELEASE -MC 24VDC item code no 1VCR004291G0001

S & F in repair VD4 MC Closing Coil (48V AC-DC)) item code no 1VCR004291G0003

S & F in repair SHUNT CLOSING RELEASE 110VDC/AC -MC item code No 1VCR004291G0005

S & F in repair MC Closing Coil(220-250V DC/220-250V AC) item code no 1VCR004291G0007

S & F in repair Tripping coil of VD4 24 VDC item code no 1VCR004289G0001

S & F in repair SHUNT OPENING RELEASE 110DC/AC -M01 item code no 1VCR004289G0005

S & F in repair Open. Coil Mo1 (220-250V DC/220-250V AC) item code no 1VCR004289G0007

S & F in repair MO2 Assy. (24Vcc)(Additional Trip) item code no 1VCR002985G0001

S & F in repair AUX.SWITCH 2NO+3NC PLUG CONN.,FORK TYPE item code no GCE7002397R0122

S & F in repair AUX.SWITCH 3NO+2NC PLUG CONN.,FORK TYPE item code no GCE7002397R0121

S & F in repair BKR Auxiliary Switch Assy._C item code no 2REA016209A0001

S & F in repair Closing spring signalling item code no 510831-802

S & F in repair SWITCH ELEMENT S826 E/L item code no NZN000859P11

S & F in repair Auxiliary Switch Assembly_A item code no 2REA009781A0001

S & F in repair DisconnectorMechanism assembly item code no 2REA016749A0001

S & F in repair Ring switch mechanism RH item code no 2REA009811A0004

S & F in repair Ring switch mechanism LH item code no 2REA014003A0001

S & F in repair Bushing+Contact Knives Assembly RH_B item code no 2REA010249A0001

S & F in repair Bushing+Contact Knives Assembly LH_B item code no2REA010249A0002

v S & F in repair TP bushing assembly item code no 2REA010376A0002

S & F in repair T-off cable bushing item code no 2REA009169A0001

S & F in repair Capacitor Unit, VPIS, 9-15 kV With Cord item code no YN1V400916-587

S & F in repair VPIS Cable Switch L1-0.7, L2-0.6, L3-0.5 item code no 2REA014974P0002

S & F in repair VPIS CableT-Off L1-1.36,L2-1.255,L3-1.15 item code no 2REA014974P0001

S & F in repair ABB RELAY TYPE REJ 603-REJ603BB401NN3XE item code no YN1V400919-532

S & F in repair Operating Handle Assembly_C item code no 2REA017122A0001

S & F in repair OPERATION COUNTER item code no 510753-802

S & F in repair OPENING SOLENOID ASSEMBLY_B item code no 2REA016775A0001

S & F in repair GAS SPRING FRONT DOOR_03 item code no 308(A)-02

S & F in repair Manometer assembly item code no 2REA013719P0001

S & F in repair Mamometer with density switch assembly item code no 2REA013719P0002

Note:- Item Code Nos given for spare parts are of make ABB, contractor may use spare part of other make as approved by the Engineer-in-charge.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft/loose soil.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft/ disintegrated rock soil.

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

Removing excavated soil to a distance n.exc 50 m and depositing where directed at a level n.exc 1.5m above the starting point.

Taking out LT/HT cable of any size from trenches / pole etc, including cable covers all as specified and directed.

M&L for providing dry river sand as in sand cushioning to under ground PVC cable including punning down of sand in layer all as specified and directed. (Note: Work shall be executed as per clause 19.75 of standard schedule of rates part-1 (2009) for measurement purpose thickness of sand after punning down will be considered.

Laying only old HT cable of size 95 sqmm 3 core, obtained from item No 10 above, all as specified and directed.

Supply & lay XLPE insulated, PVC inner sheathed, armoured with galvanised steel strip or wire, heavy duty, HT, UE underground cable ISI marked with aluminium multistranded conductor 11000 volt grade of size 95 Sqmm 3 core laid in trenches / duct passing through pipe / duct or fixed on pole and connecting and testing complete

Laying only PCC cable cover for HT / LT UG cable, of any description retrieved from item No 10, all as specified and directed by Engr-in-Charge.

Supply & laying ISI marked & conforming to IS - 5820 - 1970 unreinforced precast concrete cable cover Class HV ,type-1 flat of size 300 mm X 180 mm X 40 mm in trenches as protection to HT UG cable all as specified and directed by Engr-in-Charge

Supply and laying in repairs mild steel galvanised tubing 100 mm dia bore light grade laid in trenches / floor / fixing on pole / wall for cable protection with necessary fittings, fixtures, etc. including taking down old tubing complete all as specified and directed.

M&L for Boring under roads / pavement / hard standing without disturbing the top surface by trench less technology using ultra sound technique and necessary machine including supply & inserting HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure for passing through the cables complete all as specified and as directed. Note : Necessary infrastructure required for boring shall be arranged by the Contractor at his own cost.

M&L for heat shrinkable jointing kit indoor type suitable for 11 KV, along with complete accessories suitable for XLPE armoured aluminium cable of 95/120 Sq mm 3 core complete all as specified and directed by Engineer-in-Charge.

M&L for heat shrinkable jointing kit outdoor type suitable for 11 KV, along with complete accessories suitable for XLPE armoured aluminium cable of 95/120 Sq mm 3 core complete all as specified and directed by Engineer-in-Charge.

M&L for heat shrinkable jointing kit stright through type suitable for 11 KV, along with complete accessories suitable for XLPE armoured aluminium cable of 95/120 Sq mm 3 core complete all as specified and directed by Engineer-in-Charge.

Deployment of manpower and cable fault locator machine duly mounted on vehicle for detection of HT UG cable fault of any size & make by applying upto 15 KV supply to locate the fault and and if any necessary arrangements is required contractor shall provide the same. Note: In case HT cable fault is not detected, no payment shall be made to the contractor.

Note for all items of BoQ:- If any above mentioned HT/LT Equipments and connected items breaks down, the contractor shall locate the problem/fault at site within 12 hours on intimation by JE/Engineer-In-Charge and ensure that the fault is rectified within 24 to 48 Hours , failing which an amount of Rs 200 /- per hour will be recovered as penal recovery from any payment due to the contractor after expiry of 48 hours.)

Supply, spreading and levelling 40 mm graded stone aggregate on ground of sub station complete all as specified and directed by Engg-in-Charge Note: Measurement shall be carried out for net finished quantum of work executed.

M/s SK Traders

K K Construction Co

Nitesh Enterprise

vijay infraprojects pvt ltd

ALBA AC AND REF SERVICES