REPAIR AND PERIODICAL MAINTENANCE OF 11KV VCBS, LT PANELS, REPLACEMENT OF LT SWITCHGEARS, HT LT CABLES AND OTHER ALLIED WORKS AT CERTAIN SHOP FLOOR DISTRIBUTION SUBSTATION AT ZONE 5 AND 6 AREA AT NAVAL DOCKYARD, VISAKHAPATNAM UNDER GE (I) DM VISAKHA

Amount

Maintenance, servicing, cleaning of HT panel includes Busbar, CT chamber, CT spout, Busbar spout, support insulator, opening of covers, cleaning using CTC ,clean cloth and hot air blower, checking for any loose contact, tightening of all nuts & bolts, refixing all covers after applying expandable PU foam sealant for sealing HT cable entry bottom side gaps to arrest rat/insects/reptilies entry to HT panels complete all as specified and directed

Maintenance, servicing, cleaning of vacuum circuit breaker unit of each 11 KV, 600 A to 1250 A, taking out from panel, cleaning of all parts with CTC and clean cloth, removal of carbon deposited inside the moving contacts, greasing of all moving parts of the VCB, checking of complete operating mechanism for proper functioning, reporting for any defective parts, complete all as specified and directed. Note: Replacement of defective parts of the VCB shall be measured and paid separately.

M&L for fault rectification in control wiring for 11 KV HT panel incl DC 110V circuits by from battery charger to VCB and internal control distribution other componenets such as meters, fuses, lamps & space heaters etc and replacement of defective wiring with FRLSH multistranded PVC insulated copper conductor 1100 volts grade as per existing size of wire complete all as specified and directed. Note: Defective components will be measured and paid separately.

Excavation in trenches not exc 1.5M wide and not exc 1.5M in depth and getting out in soft loose soil all as specified and directed.

Excavation in trenches not exc 1.5M wide and not exc 1.5M in depth and getting out in soft disintegrated rock (considered for road cutting) all as specified and directed.

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

Removing of excavated material not exc 50m and depositing where directed at a level not exc 1.5M above the starting point all as specified and directed.

M&L for dry sand cushioning for under ground cable provided with layer and sand 8 cm deep before laying the cable and 15cm after laying the cable complete all as specified and directed.

Supplying and laying sub class B brick in trenches for cable protection all as specified and directed.

M&L for PCC type B1 1:2:4, using 20mm graded agregrate for pole coping / road / drain / path against damage due to excuvation/laying of cable complete all as specified and directed.

S&F HDPE pipe 100 mm dia medium grade for cable protection laid in floor including taking out old unserviceable GI pipe complete all as specified and directed.

Supply and laying in trenches XLPE insulated, armoured, heavy duty electric cable with stranded aluminium conductor, 1100 Volts grade cross section area 400 Sqmm 3.5 core and connection complete with aluminium cable lugs incl dismantling taking down unsv one all as specified and directed.

S&F cable joining kit for 1.1 KV grade cable for straight through heat shrink type joint complete with joining material and accessories suitable for 3.5 core XLPE armoured aluminium conductor cable of size 240 sqmm incl dismantling / taking down unserviceable one all as specified and directed.

All as per item No. 13 above, but of size 300 Sqmm, 3.5 core

All as per ser No. 13 above, but of size 400 Sqmm, 3.5 core

M&L for finding of cable fault of UG 11000 volts grade cable inside trench (under soil / drain/PCC/road/trench ) by disconnecting both cable ends, using insulation tester, cable path/fault finder and rectification complete by necessary excuvation, cutting at fault position, fixing of straight through heat shrink joint, for cable sizes 150 sqmm to 400 sqmm, 3 core, 11000 volts grade or replacement of heat shrink indoor cable joint kit of size 150 sqmm to 400 sqmm, 3 core and reconnection of both cable end to original position after complete satisfactory insulation test, fixing with old or required new nuts-bolts-washers complete with testing all as specified and directed . Note: (a) Items required for rectification such as heat shrink indoor cable joint kit / heat shrink straight through joints / heat shrink sleeves and earth work shall be measured separately as material and labour. (b) required aluminium cable lugs and nuts-bolts-washers shall be inclusive of quoted rate. (c) Contractor shall bring necessary testing equipment and rate shall be inclusive of quoted rate.

S/L in trenches or in duct or passing through pipe XLPE insulated, screened, PVC bedded, galvanised steel strip armoured, overall PVC sheathed electric power cables (heavy duty) with aluminium conductor, 11000 volts grade (Earthed) cross sectional area 240 sq. mm 3 core incl dismantling / taking down unserviceable one all as specified and directed.

All as per item No.17.00 above, but of size 300 sq. mm 3 core incl dismantling / taking down unserviceable one.

Dismantling taking out HT Cable from cable duct of substations for realingnment of cable and relaying by using PVC cable tie for size 3 core, 240 sqmm, 11000 volts grade all as specified and directed. Note: Each cable shall be measured separately.

All as per item No.19.00 above, but for cable sizes 300sqmm

All as per item No. 19.00 above, but for cable sizes 400sqmm

S&F cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 300 sqmm after opening VCB panel back side cable cover and bottom cable entry plate after disconneting unsv cable kit from busbar/CT, taking out from VCB cable chamber and fixing the same to original position, with new or old nuts, bolts & washers, bottom plate, back cover and making cable entry point totally sealed with putty complete all as specified and directed.

All as per item No. 22.00 above, (indoor termination) but for cable of size 400 sqmm incl dismantling / taking down unserviceable one.

S&F cable jointing kit for 11 KV (Earthed) grade cable for out-door termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 300 sqmm after after disconneting unsv cable kit from busbar at strcture, taking out carefully after openinf clamp at structure to GL and fixing the same to original position, with new or old nuts, bolts & washers, clamp at structure complete all as specified and directed.

S&F cable joining kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 400 sqmm incl dismantling / taking down unserviceable one all as specified and directed.

Supply and fixing MFM meter as per existing size for 11KV HT VCB panel and programming of MFM including necessary connection, testing complete incl dismantling / taking out unserviceable one all as specified and directed. Make- Schneider/ABB/Siemens

Supply and fix space heater, 230V, 100 watt inside cable chamber including necessary connection, testing complete all as specified and directed. Make :- Schneider only , Part No-ETH-A-AA000-001

Supply and fix thermostat for 11KV HT VCB panel including taking out unserviceable complete all as specified and directed. Make :- Schneider only, Part No-ETH-E-B000-001

Supply and fix 22mm LED indication lamps of any RED, GREEN, BLUE, YELLOW, AMBER, WHITE of 110V DC rating including replacement of faulty indication lamps of panels complete all as specified and directed.

Supply and fix panel door switch 230V for 11KV HT VCB panel including replacement of faulty complete all as specified ad directed.

Supply and fix HRC fuses 2A, 4A, 6A and 10A inside the LT Chamber of 11KV HT panel including replacement of faulty complete all as specified ad directed.

Supply and fixing closing coil 110 V DC to Schneider make 11KV VCB incl necessary connection testing complete all as specified and as directed.

Supply and fixing tripping coil 110 V DC to Schneider make 11KV VCB incl necessary connection testing complete incl dismantling taking down unsv one complete all as specified and as directed. Make- Schneider only, Part No- ECO39SN134100FN.

Supply and fix Buffer (For Opening Spring ) For 800A to 1250A Schneider make 11 KV VCB including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider only, Part No- MVIJ00098-01

Supply and fix Buffer (For Closing Spring ) For 800A to 1250A Schneider make 11 KV VCB including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider only, Part No. MVIJ00056-01

Supply and fix single (Red-Blue) phase busbar spout suitable for 800 Amps to 1250 Amps VCB including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider only, Part No- MEP-39-32185

Supply and fix single (Y) phase busbar spout for 800 Amps to 1250 Amps 11 KV VCB including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider Model No MEP-39-32186

Supply and fix including dismantling taking out unserviceable CT Spout suitable for VCB 800 to1250 Amps complete all as specified and as directed. Make :- Schneider Model No MEP-39-32187

Supply and fix Breaker Wheel - for 800A to 1250A 11 KV VCB including dismantling unserviceable complete all as specified and as directed. Make :- Schneider only, Part No-MVIA00025-01

Supply and fix spring charging Universal motor with gear box 220V AC For 800A to 1250A 11 KV VCB complete including dismantling taking out unserviceable all as specified and as directed. Make :- Schneider only, Part No-MVIJOO157-02

Supply and fix busbar supporting insulator For 800A to 1250A Schneider make 11 KV VCB complete all as specified and as directed. Make :- Schneider only , Part No- MEP-39-A0147901

Supply and fix Rectifier unit (Monoblock) for spring charging motor For 800A to 1250A Schneider make 11 KV VCB complete including dismantling taking out unserviceableallall as specified and as directed. Make :- Schneider only, Part No- ERC-A-A00DC-001

Supply and fixing of Drive Beam suitable for 11 KV VCB 800 to 1250 Amps including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider only Model No MSM3950118600FN

Supply and fix epoxy Body suitable for 11 KV VCB up to 1250 Amps including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider only Model No MEP3953022000FN-22

Supply and fix shutter assembly for busbar / circuit spout suitable for 11 KV VCB up to 800A -1250 Amps including dismantling taking out unserviceable complete all as specified and as directed. Make :- Schneider only Model No SPP0009-04

Supply and fix resin cast CT dual core of ratio 100-50/5A-5A/15VA core 1 metering, core 2 protection of breaking capacity 31.5KA/1S with dimension 220x110x230 mm and hole to hole 110 mm for 800 to 1250 A 11 KV VCB including dismantling taking out unserviceable complete all as specified and as directed.. Make : Kappa/Esun/ Pragati/ AE/SCHENIDER. Note: Contractor should visit the site for brackets size to mounting the CTs in 11 KV VCBs.

All as per item No. 46.00 above, but 400-200/5A-5A/15VA 5P10

All as per item No. 46 above, but 600-300/5A-5A/15VA 5P10

Supply and fix including dismantling taking out unserviceable resin cast PT dual core of ratio 11KV/root3/110V/root3/100VA core 1 metering, core 2 protection complete all as specified and as directed. Make : Kappa/Esun/ Pragati/AE/ SCHENIDER Note : Contractor should visit the site for brackets size to mounting the PTs in 11 KV VCBs.

Supply and fixing of PT Spout suitable for VCB Panel 800 to 2500 Amps , along with connected busbars/cables including dismantling taking out unserviceable complete all as specified and as directed. Note : Only latest batch of manufactured material shall be accepted during execution of work alongwith suitable Test Certificates/ Warranty certificates as applicable.

M&L for setting of 3 ph overcurrent + earth fault numerical relays by secondary injection of current to CTs with suitable equipment for overcurrent & earth fault with high set and low set including checking of all other parameters of relays for proper tripping order after disconection of incoming or out going HT XLPE cable connection from VCB CTs and reconnection of cable ends at existing terminals after completion of relay setting complete all as specified and directed. Note: (a) Relay setting shall be made considering corresponding values of upstream and down stream VCB relays and recorded maximum demand of VCB. Any further adjustment of values as many times require shall be carried out within the quoted rate. (b) Recovery shall be made double the quoted rate if VCB fails to trip in indicated fault and if group tripping recorded

Supply and applying Si-COAT 570 RTV Silicone High Voltage Insulator Coating solution using an Sprayer to the 11KV Indoor VCB panel Cable chamber (4.5 Kg coating materials per panel), testing complete all as specified and directed. Make:- CSL Silicones Inc. Canada

Supply and applying Si-COAT 570 RTV Silicone High Voltage Insulator Coating solution using an Sprayer to the 11KV Indoor VCB panel Bus bar chamber (4 Kg coating materials per panel), testing complete all as specified and directed. Make:- CSL Silicones Inc. Canada Note for item No. 52 & 53 : (a) Surface preparation: All insulation surfaces of the equipment to be coated shall be made free from dust, grease, oil and any other foreign material without damaging the surface. The surface of the equipment shall be made dry before application of the RTV coating. (b) All the required materials, tools & tackles, testing equipment, consumables etc. for application of HVIC coating shall be in bidders’ scope

M&L for painting of outer surface of multiple section of complete VCB panel including opening front door of drawer for painting inside front portion of VCB 11 KV using one coat of synthetic zinc paint after preparation of surface, providing protection cover to all metering equipment, panel meters, switchgears, cleaning of all meters and switch gears including feederwise marking/stickering & sealed complete cable entry with PU foam complete all as specified and directed.

M&L for cleaning of HT indoor cable kit at VCB end after opening VCB panel back side cable cover and bottom cable entry plate after disconneting all cable end from busbar/CT, taking out from VCB cable chamber, checking for serviceability, cleaning & decarbonising complete cable kit and aluminium cable lugs using CTC and refixing the same to original position, with new or old nuts, bolts & washers and making cable entry point totally sealed with putty complete all as specified and directed. Note: Required CTC, new nuts, bolts, washers shall be inclusive of quoted rate. Serviceable cable ends will only be measured.

PNR CONSTRUCTIONS (BID ID -3277457)

SREE LALITHA ENGINEERING ENTERPRISES (BID ID -3277634)