SPL REPAIRS/ REPLACEMENT AND IMPROVEMENT OF OVERHEAD HT LINE TO UNDERGROUND CABLE FOR FEEDER 1 AND ALLIED EXTERNAL WORKS AT KALIMPONG MIL STN UNDER GE 867 EWS

Amount

M & L for Dismantling unserviceable/old ACSR conductors of any size from over head lines, poles by removing binding wire, service wire, cables and removal from site complete all as specified and directed.

M & L for Dismantling unserviceable cross arms, clamps etc complete all as specified and directed..

M & L for Dismantling insulator any type, any size from HT poles complete all as specified and directed.

Dismantling unserviceable concrete / Steel poles/ struts, any sizes including demolition of foundation concrete & removing from site complete all as specified and directed.

Dismantling unserviceable GOD and Drop out fuse complete all as specified and directed.

Excavation in trenches, n.exc 1.5 m wide and n.exc 1.5 m in depth for laying of cable , etc. n.exc 10 Sqm on plan and n.exc 1.5m in depth and getting out in soft/loose soil complete all as specified and directed by Engr-in-Charge.

Returning filling in including spreading, levelling watering and well ramming in layers not exc 25 cm thick for any type of soil all as specified and directed by Engr-in-Charge

Removing surplus soil to a distance not exc 50m and depositing at level not exc 1.5m above the starting point all as specified and directed by Engr-in-Charge

Supply and spread clean dry river sand in cable trenches as in cable cushioning all as specified and as directed by engr-in-charge

Supply and laying un-reinforced precast concrete cable cover class HV type-1 of flat size 300mmx180mmx40 mm complete in trenches all as specified and directed.

M & L for laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts, grade cross sectional area of size 95 Sq mm 3 core all as specified and directed by Engr-in-Charge.

M&L for taking out old UG cable of any size/ type from trenches etc. for re-laying works and for connection complete all as specified and directed by Engr-in-Charge. Note :- 1. Excavation and earth work should be measured and paid separately.

M&L for relaying old serviceable UG cable of any size/ type on trenches/ wall/ roof etc. after necessary repair/ rerouting works complete all as specified and directed by Engr-in-charge.

Supply, intallation testing & commisioning of factory made ( CPRI Approved/tested manufacturer) Feeder Pillar Box of size 1200 X 1200 X 800mm (minimum) suitable for 11kV HT bus bar Chamber, outdoor type, made out of 3.15mm CRCA Mild steel Shet, Powder coated, dust and vermin proof with raiun water protection, double door type with locking arrangements with provision of HT 11kV Post insulator, 03 Nos fixed inside with suitable size copper bus-bars for cable connection and 11kV danger notice board on both sides, having all steel metal works including frame shall be with Anti-corrosive coating with 07 Tank process and finally epoxy polyster powder coating of siemens Grey RAL-7035 shade,panel to be fixed at 450mm above natural ground level on brick masonary platform including cement concrete 1:2:4( 20mm graded stone aggregates) 100mm thick around the area upto 1.50 meter in all directions from the panel all as ordered including provision of cattle fencing with openable gate (1.20 Meter in height) around the area upto 1.50 meter complete all as specified and directed.

Supply and fixing cable jointing kit for 11 KV grade cable for in-door End termination Heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sq mm all as specified and directed by Engr-in-Charge..

M & L for cutting through exsisting bituminous road /PCC/floor aprrox size 10cm X 90 cm depth along the road for laying of GI tubing and make good the road all as specified and directed.

Supply and laying 80 mm bore GI pipe light grade with all fittings laid in trenches for cable protection complete all all as specified and directed by Engr-in-Charge.

Supply, intallation testing & commisioning of 630 Amps,11kV, STC 21kA for 3 Sec, one sided extensible IP-54 outdoor type SF6 gas insulated 630 Amp copper busbar Raing main unit (RMU) comprising of 1 nos fixed manul vaccum circuit Breaker module and 2 nos fixed manual Load break switch grade. The LBs/VCB shall be enclosed in robotically welded minimum 2 mm thickl non -magnetic, non ferrite stainless steel tank filled with SF6 Gas & IP Class IP-67,SS304 grade leak rate less than 0.1%and tested as per latest IEC 62271-200 international standards.RMU shall have full door with cable box -IP3X and vaccum circuit breaker with high mechanical endurance of 10000 operations (M2 class) ambient Temperture of RMU shall have -25 to +45 deg c. The complete RMU must be type tested for internal arc 21KA for1 sec with AFLR classification for gas tank & cable chamber .HT RMU shall preferably have site replaceable bushings to have very less downtime in the event of bushing breakage and restoration can be done immediately without sending the RMU to OEM works .The unit shall include the following with all necessary standard fitting required at site including provision of necessary foundation as per OEM drawing/direction all as specified and directed. The complete RMU shall be consisting of following :

(a) Load break switch module - 2 nos (i) Manually operated 11kV, 630 A Load Break switch and Earthing switch with making capacity. (ii)Capacitive voltage indication fixed type system with LED for all feeder and FPI in all load break switch feeder. (iii) Earth fault passage indicator one per LBS. (iv) Mechanical ON/OFF/Earth indication (v) Cable testing facilty without opening the cable covers and without disconnecting the cable termination.Separate test bushings shall be integral part of RMU to carry out cable testing at load Break switch. (vi)Cable door should be arc proof and interlocked with respective earthing switches. For safety of operator it should not be possible to open the cable door unless the earth switch is ON.

(b) Vaccum Circuit Breaker module - 1nos (i) Manual operated 630 A Vaccum Circuit Breaker and Earthing Switch with making capacity and having power pack. (ii)Mechanical ON/OFF/EARTH/Spring Charge indication (iii)Live Cable LED indicators through Capacitor Voltage Dividers mounted on the bushings. (iv) Microprocessor based IDMT relay for circuit Breaked- self powered along with series trip coil (Modbus Rs485 complaint ) for each Vcb module . (v) GREEN (Close)/RED (Open) push buttons for VCB operation (vi)CT shall be minimum 40/1A, 2.5 VA,5p20-3 nos for protection as per actual Transformer full load current f) Right angle boot to be provided in each module. Notes:- (i)The Vaccum interruptor must RMU manufacturer's own make. (ii) Only OEM make RMUs are acceptable, RMUs manufactured and supplied in the name of System integrator/Channel partner/License partner make RMU shall not be accepted.

Material & Labour for earthing with galvanised steel earth plate electrode of size 60cmx60cmx6mm thick buried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to the galvanised iron strip of size 25 X 4mm earth lead by means of bolts, nuts check nuts and washers of galvanised iron or steel as shown in electrical plate No.3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC 1:3:6 type C-1 using 20mm graded stone aggregate pit, funnel,20mm dia GI medium grade watering pipe, 40 mm dia GI light grade earth lead protection pipe, CI frame and cover, wire, copper lugs etc mesh, chorcoal and common salt in alternatee layer complete all as specified and directed.

M&L for PCC 1: 3 : 6 type C-1 (using 20 mm graded mechanically crushed stone aggregate) as in mass concrete including necessary form work for coping to the Steel Poles complete all as specified and directed.

Note 1:- (Applicable for all parts/items) : The bidders/contractors are advised to read tender document, all drawings & all corrigendum / amendments and general condition of contracts before entry / quoting the rates. Note 2:-The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount.

Accurate Power Systems (BID ID -3487496)

SIBAL AND SIBAL (BID ID -3487697)