PROVN OF VCB, RMU AND ALLIED WORKS AT 71 RMU AND POST NO 12 TECH AREA AT AF STATION BAMRAULI

Excavation in trenches , not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation etc and getting out in soft/loose soil complete all as specified and as directed.

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

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

M&L for natural river sand as cushioning of cables including spreading and punning down complete all as specified and as directed. Note : Punned thickness shall be measured for payment purpose

Supply , laying, jointing and testing in replacement of underground HT cable XLPE insulated ,screened PVC bedded , galvanised steel strip or wire armoured electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor of size 95 Sqmm 3 Core laid in trenches/ducts/along poles/ through pipe under road etc complete all as specified and as directed.

Supply ,Laying and testing of cable XLPE insulated, screened, PVC bedded, ,galvanized steel strip or wire armored electric power cable( heavy duty) 1100 volts grade with aluminium conductor of size 10 sqmm 4 core laid in trenches/ducts/along poles/ through pipe under road etc complete all as specified and as directed.

Supply ,Laying and testing of cable XLPE insulated, screened, PVC bedded, ,galvanized steel strip or wire armored electric power cable( heavy duty) 1100 volts grade with aluminium conductor of size 16 sqmm 4 core laid in trenches/ducts/along poles/ through pipe under road etc complete all as specified and as directed.

Supply ,Laying and testing of cable XLPE insulated, screened, PVC bedded, ,galvanized steel strip or wire armored electric power cable( heavy duty) 1100 volts grade with aluminium conductor of size 35 sqmm 3.5 core laid in trenches/ducts/along poles/ through pipe under road etc complete all as specified and as directed.

Supply ,Laying and testing of cable XLPE insulated, screened, PVC bedded, ,galvanized steel strip or wire armored electric power cable( heavy duty) 1100 volts grade with aluminium conductor of size 70 sqmm 3.5 core laid in trenches/ducts/along poles/ through pipe under road etc complete all as specified and as directed.

S&F Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination , heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

Supply and laying un-reinforced precast concrete cable cover class HV, type 1 with peak size 300 mm x 180 mm x 40 mm of approved make complete all as specified and as directed .

Supply and laying sub class 'B' bricks "old size" designation 75 as in cable protection complete all as specified and asdirected.

M&L 80 mm bore galvanised iron pipe, light grade with all fittings, laid in trenches,under roads, drain paths, fixed to poles/walls with mild steel clamps, bolts, nuts and washers complete all as specified and as directed.

M&L 50 mm bore galvanised iron pipe, light grade with all fittings, laid in trenches,under roads, drain paths, fixed to poles/walls with mild steel clamps, bolts, nuts and washers complete all as specified and as directed.

M & L for boring holes (manually) under road, hard standing without damaging surface for 50 or 80 mm dia GI pipe etc complete all as specified and as directed

The VCB shall have the standard of IEC 62271-100, 630Amps, 11 KV, 50Hz with short circuit current rating 25 KA for 3 secs. The breaking capacity of VCB shall design for 25 KA and making capacity of 62.5 KA peak with maximum temperature rise over ambient shall be within limits as per IEC 2271-100. The contact resistance of main pole<60 micro-ohms, dry-1minute power frequency with stand between line terminal and ground object-28KV rms, between terminals with breaker contact open 25kv rms 1.2/50 micro second full wave impulse between line terminals and grounded object. The spring charging motor shall have 230V AC and charging time required for motor 15 sec (Max). The ground clearance of VCB shall be as per manufacturers GA drawing. The panel shall be designed for floor mounting, free standing, simplex type control and realy panel in sheet enclosure with powder coated paint after suitable pretreatment with IP4X protection. The panel shall be fabricated from 2mm MS sheet for side/top/Rear and with 3.15mm for front/Gland plate paint shade exterior shade 631 of IS-5. Panel size shall not be less than 750mm(width)x600mm(Depth)x220mm (including 100mm base channel). the CT and PT shall be designed suitable for connecting of 500KVA transformer.

Make of RMU: ABB/SCHNEIDER/SIEMENS as approved Note :- (i) Any other spares/material required for protection of transformer/VCB may be included as per design parameters. (ii) The quoted rate shall be demmed to include cost of PCC foundation and PCC plateform of suitable size 100 mm thick PCC 1:2:4 type B1using 20 mm graded stone aggregate over 100 mm thick stone hard core of guage not exceeding 63 mm complete. (iii) VCB shall be tested in manufacturer's workshop by the rep of Accepting officer before dispatch.

Supply , installations , testing & commissioning of 11 KV of rating 630 Amp RMU unit outdoor type (IP-54) protection duly painted (Paint shade in painted Alu Zn/RAL 7032 on sheet steel for door and covers), VCB type- I RMU( RING Main Unit) Three way comprising of two numbers insulated load break switch as outgoing and one number Vacuum Circuit Breaker as incoming inside . RMU should be provided with Copper Bus bar , one number fault passage indicator with each incoming and outgoing mechanism for interlocking arrangements for powered relay complete with all accessories as under:- (a) RMU type installation Outdoor Extensible type, arc proof as per IEC : 62271-200 for design Manufacturing and testing . The RMU must have the following features/specification:- INCOMER :- VCB should have following specification :- (i) Rated Voltage upto -12KV (ii) Rated power frequency withstand voltage -28KV (iii) Rated lighting impulse withstand voltage –should be minimum 125KVP (iv) Rate d current for ring main feeder -630A (v) Rated current for VCB feeder -630A (vi) Rated short-time current-21 KA/3 Sec (vii) Rate Short making current -50KA (viii) Ambient temperature (-1 degree Celsius to +45degree Celsius),

OUTGOING :-(i) Each load break Switches includes:- (a) three position switches with position ON-OFF -EARTH (b) Manual operated spring mechanism ON-OFF-EARTH (c) Mechanical indicators for position ON-OFF-EARTH , (d) Mimic diagram at the front facia of RMU , (e) Capacitive Voltage indicator , (f) Padlocking facility , (g) Fault passage indicator for Earth Fault (h) Right angled Cable boots -3x sets Make of RMU:- ABB/SCHNEIDER/SIEMENS as approved Note :- (i) Any other spares/material required for protection of transformer/VCB may be included as per design parameters. (ii) The quoted rate shall be demmed to include cost of PCC foundation and PCC plateform of suitable size 100 mm thick PCC 1:2:4 type B1using 20 mm graded stone aggregate over 100 mm thick stone hard core of guage not exceeding 63 mm complete. (iii) RMU shall be tested in manufacturer's workshop by the rep of Accepting officer before dispatch.

(c) Ammeter anolog type having measuring range (0-500) Amps with CTs etc including rotary switch to measure load of each phase of Make:-L&T/Seimens (d) Volt meter having measuring range (0-500) volt with rotary switch to measure voltage of phase R.Y.B of Make : L&T/AE (e) Grouting of panel including earth work as required PCC 1:2:4 type B-1 using 20 mm graded stone aggregate and rendering in cement mortar 1:4 complete. (f) INCOMMING:- MCCB 4 Pole 400 Amp 415 volt thermal adjustable ,type with 36 KA breaking capacity & spreader both side as Incomming cotrol device : 01 Nos. (g) OUTGOING:- (i)MCCB 4 Pole 250 Amp 415 volt thermal adjustable ,type with 36 KA breaking capacity & spreader both side as outgoing cotrol device : 02 Nos. (ii) MCCB 4 Pole 160 Amp 415 volt thermal adjustable ,type with 25 KA breaking capacity & spreader both side as outgoin cotrol device : 01 Nos. (iii) MCCB 4 Pole 125 Amp 415 volt thermal adjustable ,type with 16 KA breaking capacity & spreader both side as outgoin cotrol device : 01 Nos (iv) MCB 2 Pole 32 Amp, 240 volt thermal adjustable ,type with 10 KA breaking capacity & spreader both side as outgoin cotrol device : 02 Nos. Make of MCCB:-Schnieder/Havells/L&T/ABB/Legrand /Legrand

Supply and fixing LED flood light 100 watt 230 V AC outdoor type with thermal management in multiple optics and equipped with IP66 protection, with impact and corrosion resistant complete with driver and lamp complete all as specified and directed . Make:- Philips/Bajaj/Havells/Crompton Greaves

Supply and fixing post top lantern LED type 20 watt 230 watt volts AC outdoor type with decorative post top for 360 degree indirect light IP 65 protection with impact and corrosion resistant complete with driver and lamp complete complete all as specified and directed . Make:- Philips/Bajaj/Havells/Crompton Greaves

Earthing complete with Copper earth plate electrode 60cmx60cmx6 mm thick buried directly in ground.(earth pit not less than 2.25 m deep below normal ground level) with top edge of plate not less than 1.5 mtr below ground level connecting to Copper Strip 25mmx3mm as earth lead by means of bolts, check nuts and washers of GI and earth wire protected by provision of GI pipe light grade,40mm bore including provn of concrete pit in PCC 1:2:4 type B-1 using 20mm graded stone aggregates with pit cover made out of cast iron of size 300mmx300 mm , minimum wieght 7.5 Kg as per relevant IS including frame, GI medium grade 20mm bore pipe for watering perforated at bottom 1.75 m long placed on top edge of plate, common salt and charcoal filling, test point made out of phosphorous bronze with fixing arrangement, funnel, wire mesh including excavation and earth work in hard/dense soil, returning filling in and removal of surplus soil to a distance not exeeding 50 m complete all as per electrical plate No 3 of SSR 2009 Part-I and necessary connection and testing on completion.