RENOVATION OF OLD SUBSTATION LT PANEL AT FCI HQ BUILDING BARAKHAMBA LANE NEW DELHI

Amount

1. SUB HEAD-I -ELECTRICAL MAIN LT PANEL

1.1 LT DISTRIBUTION PANEL (415V AC, 3 phase, 4 wire, 50 Hz)

1.1 (i) Supply, Assembly, Installation, Testing and Commissioning of dust, damp and vermin proof free floor standing, Indoor type factory built sheet steel enclosed modular construction extendable panel, suitable for operation on 415 ±10% volts, 50 Hz AC 3 phase 4 wire system fabricated out of suitable sized square tubular section and covered with CRCA sheet steel of minimum 2mm thick for frame work and covers, 3mm thick for gland plates i/c cleaning & finishing complete with minimum 7 tank process for powder coating in approved shade, complete with Aluminium bus bars, inter-connection with copper conductor wires / aluminium strips, neutral links, earth bus etc. including control wiring with 1.5sqmm. & 2.5sqmm. PVC insulated FRLS copper conductor S/C cable for voltage & current circuits respectively, cable alleys, cable gland plates in two half, etc. necessary metering protections & indications and mounted with the following switch gears etc. complete as required.

1.1 (ii) MAIN L.T PANEL Ics = 50KA

1.1a Incomers from Transformers of 1000 kVA

1.1a(i) 2 Nos.2000A 4P EDO ACB with microprocessor based communicable release, over current with different time settings, short circuit protection & earth fault release with time delay, instantaneous trip current setting . Suitable links shall be provided for cable termination. ON/TRIP indication shall be wired through potential free contact up to terminal strip of breaker for hooking to BMS. Each incomer shall have following.

1.1a(iii) 2 Nos. indicating lights for ACB on/ trip position.

1.1a(iv) 1 No. Phase Reversal relay with matching cast resin CTs and alarm.

1.1a(v) 1 no. 3 phase voltage monitoring relay cum phase sequence meter

1.1a(vi) 1 No. APFC relay with matching cast resin CT's.

1.1a(vii) 2 Nos. minimum 300MM (H) x 375MM(W), Glass window compartment each with Lock & key and sealing arrangement including backelite sheet for mounting digital Three Phase Energy Meter with RS485 Port for BMS connectivity. (FOR BOTH TRANSFORMER) , near the incoming breakers.

1.1b Incomers from DG s

1.1b(i) 1 No. Incomer 400Amps EO 4P MCCB with microprocessor based releases for O/C, S/C along with rotary handle, 3 Nos. phase indicating lamps to show the incoming power with control 2A TP MCB,and 1 no. digital multifunction meter with matching cast resin CT's .

1.1b(ii) 1 No. Incomer 250Amps 4P EO MCCB with microprocessor based releases for O/C, S/C along with rotary handle, 3 Nos. phase indicating lamps to show the incoming power with control 2A TP MCB,and 1 no. digital multifunction meter with matching cast resin CT's.

1.1b(iii) 1No. 800A 4P EDO ACB with microprocessor based, over current with different time settings, short circuit with time delay & earth fault release with time delay. Suitable links shall be provided for cable termination. ON/TRIP indication shall be wired through potential free contact up to terminal strip of breaker for hooking to BMS. incomer shall have following.

1.1b(v) 2 Nos. indicating lights for ACB on/ trip position.

1.1b(vi) 1 No. Reverse Power Relay with matching cast resin CTs for each DG's

1.1b(vii) 1 no. 3 phase voltage monitoring relay cum phase sequence meter

1.1c Bus Couplers

1.1c(i) One numbers 2000A 4 pole EDO ACB with microprocessor based over current, short circuit release as bus coupler. Necessary contacts shall be wired upto terminal strip for breaker ON/TRIP, providing potential free contact ON/TRIP for status monitoring in BMS.

1.1c(ii) 1 Nos. 250 Amps 4P, EO MCCB 50 kA as bus-coupler,along with rotary handle, terminals suitable for Bus bar connections on both sides ON/TRIP indiction, as required.

1.1d Bus Bar Section-01

1.1d(i) A set of TPN Aluminium bus bar rated for 2500A (after considering all necessary deratings) 3 phase 4wire, 50Hz. A minimum derating factor of 0.80 must be taken for calculation of bus bar sizes. The bus bar size after derating shall be equal to the ampere given in the BOQ. current density of bus-bars shall not be more than 1 Amps/sq.mm for Aluminium and earth bus size shall be suitable of system fault level.

1.1e Outgoings Section-1

1.1e(i)Following rated TPN EDO ACB each having microprocessor based releases for O/C, S/C along with time delay for all protections, 1no. ON/TRIP indications.1 Set of three phase R,Y,B indicating lamps along with 2A SP MCB backup protection.and Digital flush type class-1.0 accuracy multifunction meter showing V, A, PF, F, KVAR , KW, KVAH, KWH etc. along with current transformers of suitable ratio, 15 VA Class 1.0 metering as required

1.1e.1 2 numbers 1250 A.

1.1e.2 Following rated TPN MCCB 50 KA, each having microprocessor based releases for O/C, S/C along with time delay for all protections, 1no. ON/TRIP indications.1 Set of three phase R,Y,B indicating lamps along with 2A SP MCB backup protection.and Digital flush type class-1.0 accuracy multifunction meter showing V, A, PF, F, KVAR , KW, KVAH, KWH etc. along with current transformers of suitable ratio, 15 VA Class 1.0 metering,rotary handle as required.

1.1e.2.2 5 No.s 400 A

1.1e.2.5 1 no Compartment Suitable for 1250A Existing ACB, The ACB will be removed from the old panel and fixed here. (Cost of removal and refining of ACB is to paid separately under item no 1.4.i)

1.1e.2.6 1 no Compartment Suitable for 800A Existing ACB, The ACB will be removed from the old panel and fixed here. (Cost of removal and refining of ACB is to paid separately under item no 1.4.ii)

1.1f Bus Bar Section-2

1.1f(i) A set of TPN Aluminium bus bar rated for 2500A (after considering all necessary deratings) 3 phase 4wire, 50Hz. A minimum derating factor of 0.80 must be taken for calculation of bus bar sizes. The bus bar size after derating shall be equal to the ampere given in the BOQ. current density of bus-bars shall not be more than 1 Amps/sq.mm for Aluminium and earth bus size shall be suitable of system fault level.

1.1g Outgoings Section-2

1.1g.1 Following rated TPN EDO ACB each having microprocessor based releases for O/C, S/C along with time delay for all protections, 1no. ON/TRIP indications.1 Set of three phase R,Y,B indicating lamps along with 2A SP MCB backup protection.and Digital flush type class-1.0 accuracy multifunction meter showing V, A, PF, F, KVAR , KW, KVAH, KWH etc. along with current transformers of suitable ratio, 15 VA Class 1.0 metering as required

1.1g.1.1 1 number 1250 A.

1.1g.1.1(i) Following rated TPN MCCB 50 KA, each having microprocessor based releases for O/C, S/C along with time delay for all protections, 1no. ON/TRIP indications.1 Set of three phase R,Y,B indicating lamps along with 2A SP MCB backup protection.and Digital flush type class-1.0 accuracy multifunction meter showing V, A, PF, F, KVAR , KW, KVAH, KWH etc. along with current transformers of suitable ratio, 15 VA Class 1.0 metering rotary handle as required.

1.1g.1.1(ii) 3 No.s 630 A

1.1g.1.1(iii) 3 No.s 400 A

1.1g.1.1(iv) 1 No. 200 A

1.1g.1.1(v) 1 no Compartment Suitable for 1250A Existing ACB, The ACB will be removed from the old panel and fixed here.

1.1g.2 Bus Bar Section-3

1.1g.2.1 A set of TPN Aluminium bus bar rated for 300A (after considering all necessary deratings) 3 phase 4wire, 50Hz. A minimum derating factor of 0.80 must be taken for calculation of bus bar sizes. The bus bar size after derating shall be equal to the ampere given in the BOQ. current density of bus-bars shall not be more than 1 Amps/sq.mm for Aluminium and earth bus size shall be suitable of system fault level.

1.1g.3 Outgoings Section-3

1.1g.3(i) Following rated TPN MCCB 50 KA, each having microprocessor based releases for O/C, S/C along with time delay for all protections, 1no. ON/TRIP indications.1 Set of three phase R,Y,B indicating lamps along with 2A SP MCB backup protection.and Digital flush type class-1.0 accuracy multifunction meter showing V, A, PF, F, KVAR , KW, KVAH, KWH etc. along with current transformers of suitable ratio, 15 VA Class 1.0 metering rotary handle as required.

1.1g.3(ii) 3 No.s 250 A

1.1g.3(iii) 2 No.s 63 A

1.1h Other items such as

1.1h(i) 1 Lot of control wiring for interlocking as indicated on the drawing No.El-SLD-2

1.1h(ii) 1 Set of designation plates

1.1i Supply and Installation of Cylinder less Clean Agent based Fire Suppression systems, suitable for extinguishing, electrical enclosed panel, fire by automatically triggering the thermo-activated micro capsules of UL approved HFC 227ea, activated within 120-160 Degree C temperature, in each compartment of the panel . The system has to be EN approved and Maintenance free and without any pressurized cylinder, tube, pressure gauge and flexible in nature with Warranty of 5 years as required.

1.1j Supply and Installation Testing and Commissioning necessary PLC based laod management system for controlling the DG set based upon running laod at any particular moment In case of power failure initially all D.G set will start through AMF panel at after gap of 5 mintue will switch off any D.G set based upon running laod. that time and operate the bus coupler accodingly . the panel should also have 3nos. battery charger with buckle and bust charging provision with necessary AC DP MCB for controlled the supply to the battery charger and DC DP MCB FOR controlled the supply to DG set.

1(i) MAIN L.T PANEL as describe above and shown in SLD.

1.2 Removing from existing location and Refixing at new location, including servicing and complete in all respect etc as required to the existing capacitor panels as directed by owner/consultant.

1.3 Dismantaling, Removing of the following rated LT Air Circuit breakers from existing panels and Refixing the same in the new panles, as directed by owner/consultant including disposal of debris etc as required, complete in all respects.

(i) 1250A,TPN EDO

(ii) 800A,TPN EDO

1.4 Supply, Assembly, Installation, Testing and Commissioning of dust, damp and vermin proof feeder Box for Rising mains, complete with Flexible Copper insulated connectors Indoor type factory built sheet steel enclosed, having necessary metering protections & indications and mounted with 1 No. 400 A 50 KA 4 Pole MCCB etc. complete as required.

2 SUB HEAD - II - BUS TRUNKING

2.1 Sandwich Bus Trunking

2.1.1 Supplying, installing testing by suspension from ceiling, testing and commissioning of following capacity Sandwich Type Bus Duct for use on 3 phase 4 wire 415 volts, 50Hz A.C. supply with metal clad enclosure having IP-54 rating after fixing all accessories, made of 1.6mm thick steel sheet/aluminium duly powder coated in convenient sections complete with 4 Nos aluminium bus bars having current density of 130 A/ sq cm at nominal current rating, necessary joints, elbow joints & expansion joints and copper flexible connections for joints and end connections, continuous earthing with 2 Nos aluminium strip of suitable size (one on each side) including, G.I. clamping brackets, suspenders, angle iron bracket, steel fasteners, connecting to earthing system etc. as required

2(i) 2000 A 50kA SC for 1 sec

3 SUB HEAD-III (SUPPLY, LAYING AND TERMINATION OF LT CABLE)

3.1 Supply of the following 1100 volts grade, Aluminium conductor, XLPE insulated, PVC sheathed, steel armoured cables as per IS 7098 Part-1 and as per technical specifications of this tender and directions of Engineer-in-Charge.

3.1.2 3.5 CORE AL. CONDUCTOR

3.1.2(i) 35 sq.mm. Al Ar. XLPE cable

3.1.2(ii) 95 sq.mm. Al Ar. XLPE cable

3.1.2(iii) 120 sq.mm. Al Ar. XLPE cable

3.1.2(iv) 185 sq.mm. Al Ar. XLPE cable

3.1.2(v) 240 sq.mm. Al Ar. XLPE cable

3.1.2(vi) 300 sq.mm. Al Ar. XLPE cable

3.1.2(vii) 400sq.mm. Al Ar. XLPE cable

3.2 Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 kV grade of following size on existing cable tray as required.

3.2(i) Upto 35 sq. mm (clamped with 1mm thick saddle)

3.2(ii) Above 35 sq. mm and upto 95 sq. mm (clamped with 25x3mm MS flat clamp)

3.2(iii) Above 95 sq. mm and upto 185 sq. mm (clamped with 25/ 40x3mm MS flat clamp)

3.2(iv) Above 185 sq. mm and upto 400 sq. mm (clamped with 40x3mm MS flat clamp)

3.3 SUB HEAD-III (MV CABLE END TERMINATIONS)

3.3(i) Supplying and making indoor end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3.3.1 2/3/3.5/4 CORES AL. CABLE WITH AL. LUGS

3.3.1(i) 3½ C X 35 sq. mm (32mm)

3.3.1(ii) 3½ C X 95 sq. mm (82mm)

3.3.1(iii) 3½ C X 120 sq. mm (32mm)

3.3.1(iv) 3½ C X 185 sq. mm (82mm)

3.3.1(v) 3½ C X 240 sq. mm (82mm)

3.3.1(vi) 3½ C X 300 sq. mm (82mm)

3.3.1(vii) 3½ C X400 sq. mm (82mm)

3.4 Supplying and making straight through joint with cast resin compound including ferrules and other jointing materials for following size of PVC insulated and PVC sheathed aluminium conductor cable of 1.1 KV grade as required.

3.4(i) 3½ X 35 sq. mm

3.4(ii) 3½ X 95 sq. mm

3.4(iii) 3½ X 120 sq. mm

3.4(iv) 3½ X 185 sq. mm

3.4(v) 3½ X 240 sq. mm

3.4(vi) 3½ X 300 sq. mm

3.4(vii) 3½ X 400 sq. mm

4 SUB HEAD-IV (EARTHING)

4(i) GI EARTHING STATIONS

4.1.1 COPPER EARTHING STATIONS

4.1.1(i) Supply, installation, testing and commissioning of maintenance free copper chemical earthing with 16mm dia and 5 meter length copper rod conductor and concrete embedding dia 100 mm and length 5 meter with CC pit cover and frame of size 250mm x 250mm and stainless steel nutes,bolts and washers etc. complete with all accessories as required.

4.1.2 EARTHING CONDUCTORS

4.1.2.1 Supplying, straightening, shaping, laying under ground / laying on a cable tray / laying in cement concrete trench the following sizes of electrical conductor. The work is inclusive of providing clamping with the trays / on the sides of the trenches, making joints where ever required and providing the hardwares and the terminating the hardwares and the termination to the equipment / earthing station / etc.

4.1.2.1(i) Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

4.1.2.1(ii) Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

4.1.2.1(iii) Providing and fixing 6 SWG dia G.I. wire on surface or in recess for loop earthing along with existing surface/ recessed conduit/ submain wiring/ cable as required.

4.1.2.1(iv) Providing and fixing earth bus of 50 mm X 5 mm copper strip on surface for connections etc. as required.

4.1.2.1(v) Providing and fixing earth bus of 40 mm X 5 mm G.I strip on surface for connections etc. as required.

4.1.2.1(vi) Providing and fixing insulating sleeve on G.I Per of item no (v) above and in 80 mm dia class b G I pipe (including the cost of pipe) etc as required.

5.0 SUB HEAD-V-CABLE TRAY

5.1 CABLE TRAY

5.1.1 Supplying and installing following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts& nuts, painting suspenders etc as required.

5.1.1(i) 450 mm width X 50 mm depth X 2.0 mm thickness

5.1.1(ii) 600 mm width X 50 mm depth X 2.0 mm thickness

5.1.1(iii) 750 mm width X 62.5 mm depth X 2.0 mm thickness

5.1.2 Supplying and installing following size of perforated painted with powder coating M.S. cable trays bends with perforation not more than 17.5%,, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required.

5.1.2(i) 450 mm width X 50 mm depth X 2.0 mm thickness

5.1.2(ii) 600 mm width X 50 mm depth X 2.0 mm thickness

5.1.2(iii) 750 mm width X 62.5 mm depth X 2.0 mm thickness

5.1.3 Supplying and installing following size of perforated painted with powder coating M.S. cable trays Tee with perforation not more than 17.5%, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required.

5.1.3(i) 450 mm width X 50 mm depth X 2.0 mm thickness

5.1.3(ii) 600 mm width X 50 mm depth X 2.0 mm thickness

5.1.3(iii) 750 mm width X 62.5 mm depth X 2.0 mm thickness

5.1.4 Supplying and installing following size of perforated painted with powder coating M.S. cable trays Reducer with perforation not more than 17.5%, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required.

5.1.4(i) 450 mm width X 50 mm depth X 2.0 mm thickness

5.1.4(ii) 600 mm width X 62.5 mm depth X 2.0 mm thickness

5.1.4(iii) 750 mm width X 62.5 mm depth X 2.0 mm thickness

6.0 SUB HEAD-VI-MISCELLANEOUS ELECTRICAL WORKS

6.1 SUPPLY AND INSTALLATION OF INTERNAL AND EXTERNAL LIGHT FITTINGS AND FANS

6.1(i) Supply,Installation, testing and commissioning of 48 inch ( 1200mm sweep) ceiling fan, BLDC type, having maximum power consumption of 32 Watt, complete with all accessories (Havells/Usha /Orient /Rallison)

6.1(ii) Supply,Installation, testing and commissioning of 18 inch ( 450mm sweep) wall oscilating aircirculator fan 230V,50HZ single phase complete with all accessories as required.

7.0 SUB HEAD-VII-SAFETY AND TESTING EQUIPMENTS

7(i) Supplying and erection of the following equipment at suitable place in the sub-station building as required.

7.1 Providing of set of 4 Nos. 9.5 Litre capacity GI bucket painted in post office red colour with prior coat of red oxide paint and written with white paint ‘FIRE’ and mounted on MS angle iron frame with bracket of appropriate size & capacity I/c filling sand etc.

7.2 First aid box as approved by St. John Ambulance Brigade /Indian Red Cross society conforming to IS : 2217 - 1963.

7.3 Shock treatment chart duly mounted on a wooden frame with glass on, as required in 2 languages (Hindi & English).

7.4 Providing and fixing M.V. danger notice plate of 200 mm X 150 mm, made of mild steel, at least 2 mm thick, and vitreous enameled white on both sides, and with inscription in single red colour on front side as required.

7.5 Providing and fixing H.T. danger notice plate of 250 mm X 200 mm, made of mild steel, at least 2 mm thick, and vitreous enameled white on both sides, and with inscription in single red colour on front side as required.

7.6 One Tool kit comprising 1 set of flat spanner (Taparia / Jalan), 1 set of box spanner, 1 no. Hacksaw frame with 10 no. blades, 1 no. large, medium, small screw drivers, 1 no. insulated plier, 1 no. nose plier, 1 no. hand crimping tool upto 16 sq.mm, 1 no. digital multimeter, 1 no. test lamp and 1 no. tester, Screw driver set for all types of screw heads also to be provided.

7.7 Rubber Gloves

7.7.1 Rubber gloves of 1.1KV grade as per IS 4770-68.

7.8 Supplying & erecting Carbon Dioxide (CO2) fire extinguisher of 4.5 kg. Capacity Cartridge type conf. To IS 2878 Complete erected with necessary clamp made front 50x6 mm. M. S. flat with nut & bolts grouted in wall complete.

7.9 Rubber Mats

7.9(i) Providing & fixing in position 1000 mm wide , Electrical Insulating Mats as per IS 15652:2006, 2.5mm thick, suitable for 11 KV , fire retardant,no effect of acids, alkalies and transformer oils, moisture proof, high tensile strength and texture finish / cloth impression (Anti slip , marking on top) .

7.10 FIRE ALARM DETECTION AND FIRE FIGHTING SYSTEM

7.10(i) Supply, assembly, erection, testing and commissioning of Intelligent addressable Photoelectric type Multicriteria Smoke Detector with base etc as per specification as required.

7.10(ii) Supplying, installation, testing & commissioning of Response Indicator on surface/recessed MS Box having two LED, metallic cover complete with all connections etc as required.

7.10(iii) Supply, Installation, Testing & Commissioning of Intelligent addressable Manual Call Point / Pull station break glass type with alarm LED as detailed complete as required.

7.10(iv) Supplying, installation, testing & commissioning of addressable horn cum strobe complete as required.

7.10(v) Supplying & laying of 2x1.5 sqmm fire survival armoured cable, 600/1000V rated with annealed copper conductor having glass mica fire barrier tape covered by an extruded layer of Cross Linkable Ethylene Propylene Rubber (EPR) insulation and LSZH inner bedding, steel wire armouring & LSZH outer sheath complete as required.

7.10(vi) Supply, installation, testing and commissioning of CE marked (CE - 9208) Ceiling Mounted Automatic Modular ABC Fire Extinguisher (Stored Pressure) type capacity of 10 Kg with pressure gauge and automatic nozzle (bulb temprature 56 degree centigrade)and complete in all respects including initial fill and ceiling suspension as required as per specifications.

7.10(vii) Supplying and installing Fire Ball made out of a lightweight casing of rigid plastic foam with an abrasion-resistant exterior sheathing. Within its interior there is an explosive yield detonator and a variety of fire retardant chemical agents, including dry powders, two-part reactants and liquid components. The total weight of Fire all should be 1.3 +_5% Kg. The product should be suitable for fire extinguishing Class A type of Fires ( Approved makes AFO, Elide Fire)

8 SUB HEAD-VIII-CIVIL WORKS

8.1 Supplying & fixing of fire retardant / extinguishing Elect. H.V. Flooring of 2.0 mm thick + 10% according to IS: 15652, 2006 having min. width of 1000 mm + 20 mm. All allied material such as pu-resin, chemi bound (hardener), spl. PVC adhesive, liquid primer, and sealing material and similar tape of matching colour and matching design tapes should be used to maintain any aethestic look of the insulation over the joints as per in service recommendation of Annexure "A" Clause C of IS: 15652 and suitable for class- A upto 3.3 KV (Make: Dozz, Insulatica 2000, Shock Pru)(Test report to be submitted from govt. apporoved lah)

9 SUB HEAD-IX -DISMANTALING /DISCONNECTING /REMOVING AND STORING ITEMS

9.1 Dismantaling, Disconnecting, Removing and storing at suitable place, the existing cable network of following sizes as directed by owner/consultant, including disposal of debris and handing over the usable material to the owner etc complete as required.

9.1(i) Upto 35 sq. mm

9.1(ii) Above 35 sq. mm and upto 95 sq. mm

9.1(iii) Above 95 sq. mm and upto 185 sq. mm

9.1(iv) Above 185 sq. mm and upto 400 sq. mm

9.2 Dismantaling, Removing and taking away, the existing Electrical panels of following sizes as directed by owner/consultant including disposal of debris and handing over the usable material to the owner etc complete as required. ( In the quoted rate ,the contractor shall reduce the cost of the material he would take away after dismantaling.)

Buy-Back (ie minus) 9.2(i) ELECTRICAL PANEL-01 approx length 1.5 Mtrs with depth of appx 1.25 mtr

Buy-Back (ie minus) 9.2(ii) ELECTRICAL PANEL-02 approx length 1.6 Mtrs with depth of appx 1.1 mtr

Buy-Back (ie minus) 9.2(iii) ELECTRICAL PANEL-03 approx length 0.8 Mtrs with depth of appx 1.25 mtr

Buy-Back (ie minus)9.2(iv) ELECTRICAL PANEL-04 approx length 3.0 Mtrs with depth of appx 1.5 mtr

Buy-Back (ie minus) 9.2(v) ELECTRICAL PANEL-05 approx length 1.5 Mtrs with depth of appx 1.5 mtr

Buy-Back (ie minus) 9.2(vi) SYNCHRONIZING PANEL-06 approx length 2.4 Mtrs with depth of appx 0.6 mtr

Buy-Back (ie minus) 9.2(vii) Wall mounted MCCB Enclosures

Budhiraja Electricals

DUBEY ELECTRIC WORKS