SPECIAL REPAIR/ REPLACEMENT OF TWO POLE STRUCTURE INTO RMU AND JUNCTION BOXES FOR AKASH VIHAR, FIRE ALARM SYSTEM AT AIRFORCE STATION GORAKHPUR

Amount

Excavation in trenches not. exc. 1.5m wide and not exc. 1.5 deep and getting out in soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading, watering and well ramming in layers not exc 25cm in soft/loose soil.

Removing surplus soil to a distance not exc 50m and depositing where directed at a level not exc. 1.5m above the starting point.

Material and labour for sand cushioning for under ground cable with locally available sand for protection of cable including spreading and consolidations, complete all as specified and directed.

Supply & laying factory casted reinforced precast concrete with breaking capacity 350 kg for cable cover class HV type 2 with peak size 450mm x 180x40mm complete all as specified and directed.

Dismantling of existing two pole structurte with taking shut down in writing along with 11 meter steel tubular pole ,MS work ,GODs ,Insulator ,opening of all electric cables complete all as directed by Engr in charge.

Supply and fixing (in repair), Installation, Commissioning & testing pedestal mounting outdoor ,slopy roof type, HT Junction box of size as per designed by manufacturur asper IE rule, suitable for 3 phase 11 KV AC 50 Hz supply made out of 3.15 mm thick CRCA MS sheet with 50mm*50mm*6 mm angle iron frame , supports and legs, dusts and vermin proof,suitable for outdoor applications minimum IP -54 Protection having canopy on top , door in front side & back side should be hinged type with locking arrangement) complete with powder coated epoxy paint (RAL -7+A1032 -SEIMENS RED) all over the steel surfaces (both internally & externally) and complete with copper bus bar of suitable shape and size and length as per IE rule and a gap between busbar for 3 phase rating of 400 Amps duly mounted on suitable HT insulators and suitable HT bracket for holding / fixing clamping the cables with clamps complete including PCC foundation , 450mm hight above ground level for fixing MS angle legs complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV grade cable for outdoor termination, heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size 95 sqmm to 120 sqmm complete all as specified and directed.

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure complete all as specified and directed.

Supply, installation and commissioning of 11kv, 630A, non-extensible outdoor, fixed type (IP 54) RMU (Ring main Unit) 5- Way comprising two No VCB as Incomers & 03 No Vaccum circuit breaker as outgoing, inside robotically welded stainless steel SS304 grade(non ferride and non magnete tite) and tank having min, thickness 2.5 mm & IP67 Degree protection. RMU should be provided with internal bus bars as well as earthing bus bar should be of copper, one number fault passage indicator per unit padiock provision & complete with accessories. The RMU shall be type tested for internal arc test of 21 Killo amp for one second )AFLR) as per IEC 62271-200. The earthing of cable shields. The outer enclosure main door should cover entire part of the switchgear including front cover and cable doors for providing complete IP54 protection. The unit shall include the following with all necessary standard fitting as required at site -

(a) 2 Nos Incoming 630 Amp motorised Vaccum circuit breaker, triple pole single break 3 position (On, Off and earth having STC capacity 21 KA for one seconds with copper bus bar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 sqmm. the operating sequence of VCB shall be O O.3 sec CO 3 minutes CO. THE Vccum interuptershall be RMU manufacturur on MAKE .EACH vcb module shall have self popwerd over current and eartgh fault relay wirth suitable CT for protection and metering .

(b) 03 No Outgoing 630 Amp motorised Vaccum circuit breaker, triple pole single break 3 position (On, Off and earth having STC capacity 21 KA for 3 seconds with copper bus bar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 sqmm. (C) And bus bar with bus Connected PT Unit-01 No for metering consisting of following:- (i) Type M: Air insulated metering module 12 KV, 630 A 21 KA for 3 sec for each VCB module.. (ii) Voltage transformers of the ratio 11 KV/1.732/110 V/1.732.25 VA Class 1.0 with HT fuses on primary side and MCB on secondary side. (iii) Digital MFMs with 485 port to measure Amps, Volts, Frequency, PF, KWH, KVRA(iv) CFLs for illumination.(v) Space heaters with thermostat. (vi) RYB phase indicator (vii) Cable support busbar, stand for 3 way unit, 1 monometer & 1 operating handle. (viii) Set of bushing for external bushbar coupling.(ix) 2x12 Volt 180 AH Battery with battery charger of suitable capacity for motor operation. Input 230 V AC & output 24 V DC.(d) Capacitive voltage indicator fixed type VPIS 9-15KV.(e) necessary interlocking arrangement for sefty and operation.(f) operating handles for manual operation. (g) Mono meters.(h) Safety interlock shall be provided as per relevant IEC/IS standard and manufactures directions.

(j) Safety interlocks shall be provided as relevant IEC/IS standard and manufactures directions. (k) Above switchgear shall confirm to all relevant IEC/IS standard. (I) Manual operation of vacuum circuit breaker should be possible without dismantling the motor from RMU. the motor should be fitted in such a way that it should not be outside from covers of RMU. (m) Coupling of RMU and metering module should be with the help of bolted type arrangement so that the coupling at site shall be easy. Plug in type bushing shall also be acceptable. (n) Minimum 5 module should accommodate in one tank to avoid multiple coupling at site.

(r) The auto changeover for incoming feeders shall be given through PLC OR any other electyrical interlocked logic so that at atime one incomer ON and other incomer OFF.done within 10-15 second.in case of existing incomer OFF then the other stand by incomer shall be strict on automatically. (t) PCC 1:2:4 type B1 using 20 mm graded aggregate for foundation of RMU as per recommendation of manufacturers & as directed by Engr-in-charge. Note :- Any other parts/items not specified above but have been considered essential for smooth and safe functioning of the RMU system shall be included in the items and are covered against the quoted rate. the RMU cost be offerd from OEM on factory system house authorised partner make RMU shall not be accepted.

Earthing complete with galvanized steel earth plate electrode 60cmx60cmx6mmthick, buried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edged of the plate not less than 1.5 mtr below ground level connected to galvanized iron earth strip of size 32x6mm by means of bolt, nut, check nut and washer of galvanized iron or steel protected by galvanized iron pipe of 40 mm bore medium grade, incl. Funnel, 20mm dia bore galvanised iron pipe medium grade for watering, wire mesh, charcoal or coke and common salt in alternative layers all around the earth electrode compacted thickness 15 cm incl. Excavation and earth work, PCC 1:3:6 type C-1, CI pit cover, incl disposal of surplus soil to a distance n.exc. 50 m complete testing on completion, all complete as shown in electrical plate No. 3 of MES SSR Part-I all as specified. Note :- Cost of earth strip and GI protection pipe up to a distance 7.5 metre shall be included in the quoted rate.

Supply and Installation of Conventional Fire Alarm Control Panel to accommodate 8 Zone main control panel, microprocessor based, LCD display, battery charger, with 12 v 7 AH battery (ERTL (N), and system sensor approved) with proper casing, caping and paint complete all as specified and directed.

M & L Fire alarm control panel complying with BS EN 54 single loop panel with 99 detectors & 99 modules & upto 200 detectors and modules (per each loop) complete all as specified and directed.

M & L Addressable manual call point 12 V red ABS housing unbreakable glass,reset key and back box complete all as specified and directed.

M & L Addressable electronic sounder cum strobe, electronic hooter in mild steel housing, siren with flasher complete all as specified and directed.

Supply and Installation of smoke detector system addressible complete all as specified and directed.

M & L Detectors Complying with and type certified to EN - 45 Addressable type smoke detector Photoelectric /Optical with base with self built intelligence as per IS: 11360 complete all as specified and directed.

M & L Remote response indicaters complete all as specified and directed.

Supply and Installation of fire rated PVC conduit pipe and wire 1.5sqmm copper for connection of, MCB, hooter complete all as specified and directed.

Testing and Repairing of all fire alarm Systems including checking of SLC loops,multiple signaling line currents,checking of heat detectors,sprinkler system inputs,standard pressure and flow control switches and auxiliary function control complete all as specified and directed.

M/S MALHOTRA ENGINEERING WORKS

HUMERS INFRATECH