REPLACEMENT OF LT SWITCHGEARS, HT/LT CABLES, JOINTING KITS, REPAIR AND PERIODICAL MAINTENANCE OF HT VCBS, LT PANELS AND OTHER ALLIED WORKS AT CERTAIN SHOP FLOOR DISTRIBUTION SUBSTATION AT ZONE 04 AND 05 AREA AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE

Amount

Maintenance, servicing, cleaning of Busbur chamber of each VCB including conneting busbar from CT to Busbar, spout, support insulator, opening of covers, using CTC and clean cloth and hot air blower, checking for any loose contact, tigtening of all nuts & bolts, refixing all covers complete all as specified and as directed

Maintenance, servicing, cleaning of vacuum circuit breaker unit of 11 KV VCB panel of capacity 400 Amps to 2500 Amps, 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 as directed Note: Replacement of defective parts of the VCB shall be measured and paid separately

M&L for rectification of fault of electrical circuit of 11 KV VCB by checking, repair from CT/PT and programming of multifunctional meters 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 as directed

M&L for rectification of fault of control circuit of 11 KV VCB by checking, repair of close / trip / spring charging circuit 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 as directed

M&L for rectification of fault of indication circuit of 11 KV VCB by checking, repair of indicating LED lamp circuit, annuciation system 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 as directed

M&L for rectification of fault of heater circuit of 11 KV VCB by checking, repair of thermostat / heater circuit system 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 as directed

M&L for rectification of fault of AC light circuit of 11 KV VCB by checking, repair of door switch , B-22 polycarbonate holder and replacement of defective wiring with FRLSH multistranded PVC insulated copper conductor 1100 volts grade as per existing size of wire, Lamp holder, door switch complete all as specified and as directed

M&L for rectification of fault of DC 110V circuit of 11 KV VCB by checking, repair from battery charger to VCB and and internal distribution to other components /system 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 as directed

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 M deep for taking out / laying cable and getting out in soft/loose soil complete all as specified and as directed

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 M deep for taking out / laying cable and getting out in soft disintegrated rock (considered for road cutting) all as specified and directed.

Returning, filling in soil including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and as directed

Removing excavated soil to a distance not exceeding 50M and depositing where directed at level not exceeding 1.5 m above starting point complete all as specified and as directed

Supply and lay approved quality sand underneath and all around the underground cable in trenches for cable cushioning complete all as specified and as directed Note : Punned thickness only will be measured for the purpose of payment.

Material and labour for bricks sub class B old size in cable protection complete all as specified and as 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.

Supply and fix GI pipe 80mm bore medium grade for cable protection laid in floor including taking out old unserviceable GI pipe complee all as specified and directed.

All as per item No. 16.00 above, but 100mm bore.

Supply and laying in trenches XLPE insulated, armoured, heavy duty electric cable with stranded aluminium conductor, 1100 Volts grade cross section area 240 Sqmm 3.5 core and connection complete with aluminium cable lugs including dismantling taking down unsv one all as specified and directed.

All as per item No. 18.00 above, but of size 300 Sq.mm, 3.5 core.

All as per item No. 18.00 above, but of size 400 Sq.mm, 3.5 core.

S&F Cable joining kit for 1.1 KV (Earthed) 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 including dismantling / taking down unserviceable one complete all as specified and as directed

All as per item No. 21.00 above, but of size 300 Sq.mm, 3.5 core.

All as per item No. 21.00 above, but of size 400 Sq.mm, 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 complete all as specified and as 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.

All as per item No. 25.00 above, but for LT cables of any size.

Supply and laying in trenches or in duct or passing through pipe XLPE insulated, screened, PVC bedded, galvanised steel strip armoured, over all 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 complete all as specified and directed.

All as per item No. 26.00 above, but 300 Sq.mm 3 core.

All as per item No. 26.00 above, but 400 Sq.mm 3 core.

Dismantling taking out HT Cable from cable duct of substations for realingnment of cable and relaying with proper alingnment for the cable of 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. 29.00 above, but for cable size 300 Sq.mm

All as per item No. 29.00 above, but for cable size 400 Sq.mm

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. 32.00 (indoor termination) but for cable of size 400 Sqmm including 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 sqmmafter 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 complete all as specified and directed.

Supply and fix space heater, 230V, 100 watt inside cable chamber including necessary connection, testing complete all as specified and as directed. Make- Schneider, Part No-EHT-A-AA 000-001

Supply and fix including dismantling taking out unserviceable thermostat for space heater For 800A to 1600A Schneider make 11 KV VCB complete all as specified and as directed Make-Schneider only, Part No- ETH-E-B000-001

Supply & fixing closing coil assembly 110 V DC to Schneider make 11KV VCB incl necessary connection testing complete incl dismantling taking down unsv onecomplete all as specified and as directed . Make- Schneider, Part No- ECO39SN134900FN

M&L for setting of 3 ph overcurrent + earth fault numerical relays by primary 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 as 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. 40 & 41 : (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 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

MVV Prasad

M/S SRI VENKATA BHAVANI CONSTRUCTIONS

aswitha engineering works

SRIESWARI ENTERPRISES

REAL ENGINEERING WORKS

UV POWER TECH

M/s SS Engineering Enterprises

KIRON ENGINEERING CORPORATION

SATYAMEGHA ENGINEERS