Provn of 3 Phase Power Suply of 100 KVA for NFS Trg Node at 5 Sig Gp and 500 I Sig Coy Provn for installation of Servo Controlled Stabilizer for HT LT Panel at CASD area Provn of LT Panels LT Cables and connected items for augmenting the Electric S

Amount

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft loose soil for laying / taking up/ taking down of cables and getting out and levelling of bottom suface to required level all as specified and directed by Engineer- in- Charge.

Returning filling in,. Including spreading, levelling,. Watering and well ramming soil in layers not exceeding 25 cm thick all as specified and directed.

Removing excavated material (ie soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point all as specified and directed by Engineer-in-Charge.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified.

S&F sub class B bricks having minimum compressive strength 75 Kg/ Sqcm laid in trenches for cable protection etc complete all as directed by Engineer-in-Charge.

Supply and lay unreinforced precast concrete cable covers class HV Type -1 with peak size 300 x 180 x 40 mm. compete all as specified and directed

M&L for Demolation of road, path, drain and concrete in ground floors, RCC/Brick wall (below or above ground level) complete all as specified and as directed.

Material and labour for coarse aggregate filling using stone gravels, rounded, of size n exc. 43 mm suitable to site, in the area covered by four pole structures complete all as specified and directed.

M&L for providing cement concrete 1:2:4 type B-2 (using 40 mm grade crushed stone aggregate) 250 mm Thick complete all as specified and as directed by Engr in charge.

M&L for Voltage stablizer for automatic operation , three phase, naturally oil cooled, outdoor type & designed for input variation between 340 V to 460 V with output voltage stabilized at 415 with accuracy ± 2.5% and speed of correction 8 Volts per second and of capacity 200 KVA

Supply & laying or fixing or passing through pipe under ground XLPE cable, insulated screened PVC bedded, galvanised strip or wire armoured, electric power cables (heavy duty) 120 Sqmm 3 core 11 KV grade (earthed) with starnded aluminium conductor.

Supply & fix cable end jointing kit for 11 KV grade(Earthed) cable for outdoor type termination heat shrinkable joint complete with jointing material and accessoies suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm

Supply & fix cable end jointing kit for 11 KV grade cable for indoor type termination heat shrinkable joint complete with jointing material and accessoies suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to185 Sqmm

Supplying, laying, jointing testing and connecting XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, IS 7098 marked, suitable for LT 1100 Volt system, laid in trenches fixed to pole, including jointing & testing complete all as specified and directed of following sizes:- Note :- Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately under respective items of schedule.

16 Sqmm 4 core

25 Sqmm 4 core

35 Sq mm 3.5 core.

50 Sq mm 3.5 core.

70 Sqmm 3.5 core

95 Sqmm 3.5 core

120 Sqmm 3.5 core

185 Sqmm 3.5 core

400 Sqmm 3.5 Core

Boring of hole under road/pavement/hard standing or any other situation by mannual means and suitable for passing of GI pipe 40 to 100 mm bore and making good both ends all specified and directed

S&F GI Pipe (light grade) with necessary accessories/ fittings for cable protections/pole for crossing of culverts/nallah of following bore sizes

Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised earth lead wire 4.0mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 5 connected to earthing test point all as specified or indicated including testing on completion

Earthing in replacement complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.10 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized iron strip 32mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical plate No 5 of SSR Part I, connected to earth test point and the equipment on the other nuts and washers of galvanised ironside complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe medium grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode.

Earthing complete with galvanized steel earth plate electrode 600x600x6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5 m below normal ground level connected to galvanized earth strip 25 x 4 mm by means of bolts & nuts checknuts & washers of galvanized iron electric arc welding all joints all as specified & shown in electrical plate no 5 of SSR part I including necessary excavation & earth work in any type of soil PCC 1:3:6 type C1 chamber with RCC 1:2:4 type B1 40 mm thick cover with MS rod 8mm dia 150mm long reinforcement, watering funnel, 40 mm dia light grade for protection of earth electrode 20 mm dia for watering all as specified and directed and tested on completion.

Supply, installing, testing and commissioning in replacement of factory made and tested Bus bar chamber outdoor type with canopy made out of 3.15 mm CRCA MS sheet, and 40x40x5mm thick MS angle iron frame work, powder coated finish over one coat of red oxide primer on outside surface and painted inside with two coats of red oxide primer, front opening type, with apron for cable entry closing locking arrangement of size not less than 400mm x 400mm x 300mm with 4 Nos 300 Amps aluminium bus bar and with 200 Amp MCCB, 4 pole, 25 KA, 415 Volt 50 Hz including excavation, earth work and platform for the Bus bar chamber with PCC 1:4:8 type D-2 with 40 mm graded stone aggregate, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded sotne aggregate on top and grouting bolts etc for Bus bar chamber. The platform shall be such that it is of a height 45 cm above the nearest road level.

OUTGOING (i) MCCB 3 pole , LT 415 Volts, 50 Hz AC grade of 315 Amp Amps rating 36 KA rupturing capacitiy with adjustable Themal and Meganetic setting releases, - 01 Nos. (ii) MCCB 3 pole , LT 415 Volts, 50 Hz AC grade of 200 Amp Amps rating 36 KA rupturing capacitiy with adjustable Themal and Meganetic setting releases, complete - 01 Nos (iii) MCCB 3 pole , LT 415 Volts, 50 Hz AC grade of 160 Amp Amps rating 25 KA rupturing capacitiy with adjustable Themal and Meganetic setting releases, complete - 01 Nos (iv) MCCB 3 pole , LT 415 Volts, 50 Hz AC grade of 100 Amp Amps rating 25 KA rupturing capacitiy with adjustable Themal and Meganetic setting releases, complete - 02 Nos Note (i) All incoming and outgoing feeder shall be connected by cable through suitable size glands & thimples. (ii) The various feeders shall be indicated by 50mm size letters in synthetic enamel white paint. (iii) All MCCB should be Ics=100%Icu (iv) All MCCB Should have spreader link with barrier.

Labour and T&P only for taking up/down from HT two pole structure/duct and relaying by change of route of cables in same or any position all as directed by engr - in - charge.

Supply & install ,testing and commissioning of transformer step down, outdoor type copper wound 11KV/433 Volts (at no load) AC 3 phase 50 Hz 100 KVA capacity, core type, oil immersed naturally air cooled, oil natural air natural (ON/AN) , with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYn-11 with neutral brought out on secondry side (LV) and having taping at +5% to 10% in steps of 2.5% on HV side to be changed by means of hand operated off load tap changergear. The maximum temperature rise should not exceed 40 degree celsius in oil and 45 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree celsius transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability prime grade crgo with M4 grade or better, perfectly insulated and clamped to minimize noise and vibrations. The transformer shall be IS/IEC 60076and as per IS-1180 part - I of 2014 marked and shall comprise of the following :-

(a) One cable box on HT side (Primary side) consisting of three nos porcelain bushing with copper rods, complete with nuts and washer , with cable glands suitable for reception/taking out 3 core 120 Sqmm, HT 11000 volts grade, XLPE insulated and PVC sheathed, heavy duty , armoured cables including jointing materials complete. (b) One cable box on LT side(secondary side) consisting of four nos porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out 3.5 core 120 sqmm, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. (c ) conservator with filter type drain valve and oil level guage. (d) De-hydrating breather with first fill of dehydrating agent (Silica Gel). (e) Explosive vent, Thermometer pocket on tank cover, oil level guage, Oil drain filter valve, Lifting ligs,oil filling hole with cap/plug with connection plate complete, Air release valve plug and four nos plain solid cast steel detachable rollers. (f) One 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device. (g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanised iron earth strip for earthing of body. (h) Rating plate and terminal marking plate.

(j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral. (k) First fill of new & unused transformer oil, IS-335 of 1986 marked, filtered & tested upto 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree celsius Ohm-om 500 x 10 the power12, water content 50 PPM, Dielectric dissipation factor (tan Deta at 90 degree celsius) 0.005, Neutralisation value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree celsius - 0.04, flash point 140 Degree celsius and sluge 0.1 % by weight. (l) Providing adequate size and nos of channels, embeded in floor, for movement of transformer. (m) Tranformer losses shall not exceed the loses mentioned in Table 6 of IS: 1180 of 2014 Part - I with energy Effeciency level - II.

Supply and installation , testing and commissioning of 11 KV, 630 Amps, 21 KA/3 sec outdoor type Ring main unit IP 54 protection plug in type extensible on one side SF 6 gas insulated two incoming and two outgoing (4 way ) with metering plate form mounted compact switch gear consisting of 02 Nos load break switch as incommer and 02 Nos outgoing VCBs , all live parts, bus bars VCB will be enclosed in robotically/manual welded minimum 2 mm thick stainless steel tank filled with SF 6 gas IP 67 Degree of protection & tested for internal arc 20 KA/1 sec as per latest IEC 62271-200 complete installed at basement of building, including the cost of PCC foundation for placing of RMU on plinth complete all as specified & directed. The unit shall include the following with all necessary standard fitting required at site: - (Make : ABB / SIEMENS / SCHNEIDER C&S).

(A) Incoming Load Break Module - 02 Nos each switching unit shall be designed as a three position switch. This three function switch combines the functions of switch disconnector and earthing switch cables switch 12 KV, 630 Amp, 21 KA - 01 Set. Snap action mechanism for motorised and manual(Both) operation with integrated earthing switch switch - 01 Nos. Cable bushing 630 Amp standard C bushing - 01. Fault passage indicator, On(N-1) load break switch where n= no of load break switch >>s/c & E/F FPI with digital display to be added for detection of cable fault. ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01. Capacitive voltage indication fixed type LED display - 01. ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. Cable box for termination of cable up to 1 No. x 185 sq.mm - 01. Cable cover standard - 01. Set of 12kV Cable Termination Boots - 01. Cable entry bottom, front - 01

(B) (i) Out going VCBs - 02 No consisting of following - function unit consist of vaccum circuit breaker in combination with a three position switch. The three position switch fulfills the operation of the disconnector function and earthing function circuits breaker unit is equipped with an over current transformer for the protection of distribution Transformer/circuit vaccum circuit breaker 12 KV, not less than 400 A, 21 KA - 01. Spring assisted closing with stored Energy triping mechanism for motorised operation with integrated earthing switch - 01. live cable LED indicators thru capacitor voltage dividers mounted on the bushings push button for breaker trip - 01 sec O/C + E/F self powered numerical protection relay with low and High set for Over current and earth fault Relay should have facility to display the maximum loaded phase current also current also relay shall record minimum 5 fault records with time stamping - 01 Alaram trip indication 6 window anuciator for transformer faults Mechanical ON/OFF/EARTH indication -01. Auxliary contacts on load switch are 1 No+2NC & Auxiliary conract on earth switch is 1 No+ 1NC-01. Self powered electronic numerical protection relay providing 3 over-currents & 1 E/F protection - 01, shunt trip coil 24 V DC-01 capactive voltage indication fixed type LED display -01 ON/OFF/Trip mechanical indication on the front mimic of panel-01 cable box for termination boots-01. Metering Equipment incl. 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), 01 x Tri-VectorMeter (Acc.Cl.0.5) Auxliary relay for transformer protection -06 Nos.

(ii) Out going VCBs - 02 No, One consisting of CT 10/1 -5p10.2.5VA- 03 and other one consisting of CT 100/1 -5p10.2.5VA- 03. (C ) Additional equipment deliverd separately or mounted seperatly, Bus connected with battery charger and battries for motor power supply-01 (i) PT ratio 11KV/3/110/v3, 100 va, 0.5 class for measurement with volts meter(ii) Auxliary transformer of 11KV/230V, 1 KVA for powering the motors and battery charger (iii ) 24 V DC battery charger and battries for motor power supply. Standard mano meter -01, Operating handle - 02 , cable clamping provision(standard)-01 Operation and maintance manual - o1, installation and commissioning manual - 01, cost of PCC works for placing RMU on plinth is deemed to be included in the cost, Height of plinth shouldnot be less than 0.45 mtrs from ground level. NOTE :- (a)The above module consisting of two Load break Switch and 02 VCBs shall be alligned appropriately and must have electrical and mechanical interlocking as per latest electrical safety norms including foundation complete.

Material and labour for brick masonry platform (suitable for 100 KVA transformer) as shown on sketch P-1 (attached) having size 1.6m X 1.6m and total height 1.6 M(0.45 M below ground level including excavation and earth work ,1.15M above ground level including RCC slab 150 mm on top) and cement plaster on all side with 1:4 cement morter complete all as specified and directed by Engr-in- charge.

M&L for PCC in foundation filling and mass concrete type D2 (1:4:8) using 40 mm grded aggregate for foundation of pole complete all as specified

M& L for PCC type B1 (1:2:4) using 20 mm graded stone aggregate for pedestal of poles including use and waste of formwork complete all as specified

Material and labour for PCC 1:2:4 type B -0, (using 12.5 mm graded stone aggregate) as in coping including necessary form work exposed surface of concrete shall be finished even and smoth without using extra cement complete all as specified and directed.

M&L for brick work with Sub Class 'B bricks straight OR curved on plan exc 6 M mean radius built in cement morter 1:6 complete all as specified and directed.

M &L for plaster hacking for keyscrubbing down with water etc and rendering 10 mm thick in cement plaster 1 : 4 frinishing in the surfaces fair and even, complete all as specified and directed.

S&F of angle/Flat iron of any size for fencing to sub station/RMU fixed as vertical/horizental member for frame to wire mesh including cutting to shape, drilled and countersunk for screw including welding and grouted in ground with PCC type B1 (1:2:4) using 20 mm graded aggregate for pedesta of angle at site and hinged for gate complete , confirming to Fe290.Gde-E-165 complete all as specified and directed NOTE :- The cost of Excavation and earth work , Brick work and PCC for item No 23 above shall be paid seperatly.

Supply and fixing MS Cross arms, bracings, supports, clamp and back plates fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot drilling holes for bolts in any type, shape or as indicated and directed inclusive of one coat of red oxide primer and two coats of aluminium paint complete all as specified and directed.

S &F of MCCB 630 Amps, 4 Pole, 50 KA, 50 HZ including MCCB sheet metal enclosure mounted on wall with fastner and sutiable size of nut and bolts complete all as directed.

S&F 4 to 5 mm thick mild steel wire 80x40 mm mesh up into mattressess or cages, lapped wired and fixed in position including welded for fencing to grid all as specified and directed.

M&L for danger notice board of 1.6 mm thick mild steel,vitreous enamelled white with letters,figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts and nuts of approved size for HT 25 x 20 CM size complete.

M/s KUNDU CONSTRUCTION

Vijay Electricals

MV Engineers And Contractors

mayur enterprises

Rajindera Enterprises

Ridhi engineers and builders

M/s Birja Nand

Buddham Builders

Unitech Enterprises