Meenatchi College - Electrical

Rewiring with 2 x1.5 sq.mm. PVC insulated single core unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe Concealed in wall and ceiling with PVC accessories with Module GI switch box in flush with wall with 6A one way module switch with module front plate and making good of the concealed portion with suitable colour for Concealed PVC Light point / fan point (for electronic regulator) (5 points / Coil) Higher End )

Rewiring with 2 x1.5 sq.mm. PVC insulated single core unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe Concealed in wall and ceiling with PVC accessories with Module GI switch box in flush with wall with 6A one way module switch with module front plateand making good of the concealed portion with suitable colour for Concealed PVC Light point / fan point (for electronic regulator) (6 points / Coil) Higher End

Rewiring with 2 x1.5 sq.mm. PVC insulated single core unsheathed FRLS copper conductor of 1100 V grade in suitable PVC rigid pipe Concealed in wall and ceiling with PVC accessories with Module GI switch box in flush with wall with 6A one way module switch with module front plate with continuous earth wire connection of 1.5 sq.mm copper wire and making good of the concealed portion with suitable colour for Concealed PVC Light point / fan point (for electronic regulator) (5 points / Coil) Higher End. Street light points only

Rewiring with 3 x1.5sq.mm. PVC insulated single core unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe Concealed in wall and ceiling with PVC accessories with Module GI switch box in flush with wall with 6A two way module switch with module front plate and making good of the concealed portion with suitable colour for Concealed PVC pipe Stair case Light point Higher End.

Renewal by supply and fixing of 4Feet LED 20W Fitting with LED 20W tube (HigherEnd) complete with TW round blocks on wall or ceiling with PVC unsheathed FRLS Copper leads from terminals to the fitting.

Renewal by supply and fixing of Twin box type 4'-20 W LED fitting with CRCA Body complete with conduit pipe suspension with PVC unsheathed FRLS Copper leads from terminals to the fitting with 2Nos 20W LED tube light .

Renewal by supply and fixing of PHILIPS Twinglow 20-Watt +20-Watt Led Up-Down Batten Tubelight (Yellow Uplight Relax Mode and White Downlight Work Mode/ Equivalent) Aesthetic Design, Ambience of Downlight & Covelight from Tubelight with TW round blocks on wall with PVC unsheathed Copper leads from terminals to the fitting.

Renewal by supply and fixing of 35W LED Pressure Die-Cast aluminum housing well glass luminaire with suitable special type of MS clamps with PVC unsheathed copper leads from terminals to the fittings.

Renewal by supply and fixing of (Philips make/ Equivalent) Essential 9W LED bulb for BH point

Renewal by supply and fixing of decorative wooden wood type Chandelier (Jaquar make /Eq) of dimensions (74Cm(L) x 74cm(B)x43cm( H) ) weight 6.7kg with suspension from the ceiling with necessary mounting kits and with PVC unsheathed Copper leads from terminals to the fitting.The outer CRCA powder coating should be customised as per the Colour shades chosen by the department officials concerned.

Renewal by supplyand fixing of LED foot with Inbuild 230v switching driver (Higher End klite/Equivalent) with mounting screws and brackets with PVC unsheathed Copper leads from terminals to the fitting.

Renewal by supply and fixing of Up down light Lukar UP DOWN light ORA OW4 (2x3W) LODSW203/ Equivalent with mounting screws and brackets with PVC unsheathed Copper leads from terminals to the fitting.

Renewal by supply and fixing of Lukar Make/Equivalent EROS black Pendant type luminaire with E27 Base to house 1No. of 4W LED (Philips / Havells / Eq) with suspension from the ceiling with PVC unsheathed Copper leads from terminals to the fitting.

Renewal by supply and fixing of 48W LED street light fitting with LED (Higher end) with 32mm dia. GI pipe (class B) with 1no. 32mm dia GI bend complete on the existing post/ on wall with PVC unsheathed FRLS copper leads with MS clamps and with painting.

Renewal by supply and fixing of 1200mm (48") sweep AC ceiling fan High speed complete with 2 module 100W fan step regulator (Higher end) with 300 mm down rod with fan clamp with side plates and cross arm of size 450mm (18")

Renewal by supply and fixing of 300 mm (12") sweep (light duty) AC exhaust fan complete without provision of hole in the wall

Renewal by supply and fixing of louvers shutters arrangements for 300 mm (12") sweep (light duty) AC exhaust fan

Renewal by supply and fixing of 400mm (16 inch) wall mount, Oscillating type fan with aerodynamically designedsemi transparent PP three blades for noise free operation with in built Speed regulator with necessary accessories with connections complete (Havells make Accelero HS/ Crompton High Flo Wave/ Usha Maxx Air/Eq.)

Renewal by supply and fixing of 3nos.6A two module 3pin socket, 3nos. 6A one module switch with module cover plate (plastic) on suitable module concealed Box (GI ) in flush with wall with connections. Higher End

Renewal by supply and fixing of 1 no.6A two module 3 pin socket , 1 no. 6A one module switch with module cover plate (plastic) on suitable module concealed Box (GI ) in flush with wall with connections. Higher End

Renewal by supply and fixing of 1 no.6/16A two module socket , 1 no. 16A one module switch with module cover plate (plastic) on suitable module concealed Box (GI ) in flush with wall with connections. Higher End

Renewal by supply and fixing of 20A Flush type Wall socket with 32A DP MCB in flush with wall with earth connection (For AC Plug)

Renewal by supply and fixing of 32A DP MCB in sheet steel enclosure on wall with earth connection. [The MCB and metal enclosure should be with Legrand / Hager make]

Renewal by supply and fixing of 8 way single pole and neutral MCB sheet steel enclosure distribution board with double door (metal) with 1 no. 32A DP MCB as incoming and 6 nos. 6A to 32A SP MCB as outgoing in flush with wall with earth connection only. Higher End

Renewal by supply and fixing of 7 segment 4way TPN MCB sheet steel distribution board (Higher end) with metal / acrylic door cover flush type /surface type fitted with busbars and neutral links with single / three phase MCB outgoings and seperate 4 way provision for accomodating one no. 4 pole incoming MCB / Isolator and another seperate 4 way provision for accomodating one no. 4 pole ELCB / RCD (totally 8 ways in one segment) (3x 4 ways in each segment) and seperate provision for MCB / Isolators ( totally 12 nos.) for sub incomers in 3 segments with lable holder and provison for taking up cable for size not less than 35 sq.mm. with the following in flush with wall with earth connection only. i. 63A 4P MCB - 1No ii.63A DP MCB isolator - 3 Nos iii.6A to 32A SP MCB - 12 Nos

Renewal by supply and fixing of 8way Vertical Triple pole and neutral MCB sheet steel enclosure distribution board with double door (metal) with 1no. 100A 4P MCB Isolator as incoming and 3 nos. 32A 3P MCB, 5 nos. 32A 3P MCB as outgoing in flush with wall with earth connection only. Higher End.

Renewal by supply and run of 2 of 1.5 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in rigid pipe concealed in wall and ceiling with continuous earth wire connection of 1.5 sq.mm copper wire and making good of the concealed portion with suitable colour .

Renewal by supply and Run of 2 of 2.5 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100 V grade in suitable PVC rigid pipe Concealed in wall and ceiling with continuous earth wire connection of 2.5 sq.mm copper wire and making good of the concealed portion

Renewal by supply and run of 2 of 4 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe concealed in wall and ceiling with continuous earth wire connection of 4 sq.mm copper wire and making good of the concealed portion with suitable colour

Renewal by supply and run of 4 of 6 sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe concealed in wall and ceiling with continuous earth wire connection of 6sq.mm copper wire and making good of the concealed portion with suitable colour

Renewal by supply and clarnping of 3 1/ 2 x 50 sq.mm. PVC LTUG armoured cable on post or on wall with MS clamp.

Renewal by supply and Laying of 3 1/2 x 50 sq.mm. PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 metre and refilling the earth to make good.

Renewal by supply and frxing of brass cable gland for 3-1/2 x 50 sq.mm. PVC armoured LTUG cable with earth connection.

Renewal by supply and providing cable end termination of 3 -1/2 x 50sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc with electrical connection complete.

Renewal by supply and fixing of 32A FP MCB in sheet steel enclosure on wall with earth connection. [The MCB and metal enclosure should be with Legrand / Hager make/ Equivalent]

Renewal by supply and fixing of 200W LED flood light fitting (Crompton Pluto Neo/ Equivalent) on MS angle iron frame 38 x 38 x 6mm with PVC unsheathed copper leads from terminals to the fittings. .

Renewal by supply and Laying of 4 x 10 sq.mm. PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 metre and refilling the earth to make good. Flood light

Renewal by supply and clarnping of 4 x 10sq.mm. PVC LTUG armoured cable on post or on wall with MS clamps.

Renewal by supply and fixing of brass cable gland for 4 x 10 sq.mm. LTUG armoured cable with earth connection.

Renewal by supply & erection of 250A rated dust &vermin proof cubicle panel board of size not less than 5'x6'x1.5' made out of 16SWG CRCA sheet steel with bus bar chamber, cable chambers, switching consoles with hinged doors etc. with necessary stifners on suitable angle iron frame supports with wall mounting arrangements complete with the following accessories.

1.250A TPN SDF Units interior with HRC fuses double break. (L&T/Siemens/Eq.) (incomer)-1 No.

2.125A TPN SDF units interior with HRC fuses double break (L&T/Siemens/Eq.) - 2Nos.

3.100A TPN SDF units interior with HRC fuses double break (L&T/Siemens/Eq.) - 2No.

4.63A TPN SDF units interior with HRC fuses double break (L&T/Siemens/Eq.) - 4Nos.

4.2''x1/4'' tinned copper sleeved insulated copper flats-3Nos for 3 phases and 1''x1/4'' tinned copper sleeved insulated copper flat-1No for Neutral with epoxy molded bus supports.

5.1''x1/8'' tinned copper flats for earth bus in rear side panel -2Nos.

6.Metering console with multi function Digital panel meter with CTs.

The 250A SDF unit should be connected with the bus bar by 2''x1/4'' tinned copper flates. The 250A SDF unit should be connected with the bus bar by 1''x1/4'' tinned copper plates. The 63A SDF units should be connected with the bus bar by No.8 SWG tinned copper conductor.All the SDF units should be provided with double earth connections.All the switches are separated from bus chamber & cable chamber with 3mm thick hylum sheet.

All the doors should be earthed with suitable flexible copper leads. All the doors should be provided with suitable locking arrangement with rubber beedings. The rating of panel bus bar, switches cable sizes etc. to be super scribed. A danger sticker should be affixed.The panel should be powder coated gray colour .All the relevant CEA measures relationg to safety and electric supply regulations, 2023 shall be complied with. (DATA - 17) (As per agreement No. / 23-24)

Renewal by supply and Laying of 31/2 x 185 Sq.mm. PVC armoured LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 metre and refilling the earth to make good

Renewal by supply and fixing of brass cable gland for 3-1/2 x 185 sq.mm. PVC armoured LTUG cable with earth connection.

Renewal by supply and clarnping of 31/2 x 185 Sq.mm PVC LTUG armoured LTUG cable on post or on wall with MS Clamps.

Renewal by supply and providing cable end termination of 31/2 x 185 Sq.mm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection complete .

Re-earthing as per the ISI specification with an earth electrode of 2.10 metre Class 'B' GI pipe of dia not less than 40mm with copper earth plate of size 125mm x 50mm x 6mm with necessary funneling arrangements with necessary masonry work and with 38mm RCC cover slab for the brick masonry. .

Renewal by supply and Run of 1 of No.8 SWG copper wire in suitable PVC rigid pipe on wall / floor / ground for earth connection

Renewal by supply, commissioing, testing and handing over of 3KVA single phase input to single phase output micro processor controlled double conversion true on line UPS system with isolation transformer and 12V, SMF batteries 4Nos 72 Ah battery interlink cables for minimum 1 Hours back up time DC power should be minimum 3000W and with suitable MS powder coated Rack for batteries complete with the following specifications

Configuration:

True on line double conversion UPS system with pulse width modulation (PWM)

Technology using IGBT inverter

RECTIFIER:

Full wave (shall fully meet the specified input power requirements)

INPUT : single phase 230V + 15%

OUT PUT : 1% on battery mode

FREQUENCY ; 47HZ - 53HZ

VOLTAGE : 48V DC for 3KVA UPS

INVERSION TECHNOLOGY : Micro processor controlled, pulse width modulation with instanataneous sine wave control using IGBT.

INVERTER OUT PUT : ( Out put Galvanic Isolation through Double winding Isolation Transformer at Output of Inverter shall be part of UPS Design )

LOAD POWER FACTOR: 0.9 to unity

REGULATION : for Balanced load ± 1%

For 100% unbalanced load ± 2%

FREQUENCY: 50Hz + 0.5%

WAVE FORM : Pure sine wave

TOTAL HARMONIC DISTORTION : < 3%

OVERLOAD CAPACITY: Inverse Time Characteristic 125% for 10 minutes

150% for 1 minutes

EFFICIENCY : 1. Converter – 95%

2. Inverter - 95%

3. Overall >90% ( full load)

Operating Temperature : 0 to 45 Degrees centigrade on full load

CREAST FACTOR: 3 : 1

RELATIVE Humidity : : 95% at 35 Degree Centigrade non- Condensing

CHARGER: Built in solid state automatic float- cum boost charger with constant current, constant voltage mode of charging along with current limiting features. Ripple in DC shall not exceed 2% when battery is disconnected.

PROTECTION( In built)

i) Output under Voltage

ii) Output over Voltage

iii) ) Output over load

iv) Output short circuit.

v) HRC fuses /output/ battery

vi) Battery low trip

vii) Battery charges current limit.

INDICATIONS:

i. Mains ON

ii. Inverter ON

iii. UPS ON battery

iv. Load On UPS

v. Battery LOW

METERING:

i. Output AC Voltage

ii.Output DC Voltage / Load details and Frequency ( M-2102)

Renewal by supply and run of 2 of 6sq.mm. PVC insulated SC unsheathed FRLS copper conductor of 1100V grade in suitable PVC rigid pipe on wall and ceiling with continuous earth wire connection of 6sq.mm copper wire with painting of suitable colour .

Renewal by supply, installation, testing, commissioning and handing over of aircooled self conditioning ductable AC unit of 5.5 TR Ceiling Supsended Ductable Unit fixed with energy efficient R410A refrigerant scroll compressor along with rooved copper tube / aluminium foils air cooled condensor coil with anticorrosion coatings, liquid accumulator, low noise aluminium propeller condenser fan with fan motor, etc., all suitably assembled neatly in heavy duty GSS sheet metal cabinet and duly powder coated as per specifications. The unit to include built in safety controls like HP/LP switch power quality protector in built thermal/ temperature protection .

Renewal by supply and fixing of Ivory colour powder coated painted Aluminium Diffuser Jet Nozzle .

Renewal by supply and fixing of Copper Refrigerant Piping of 7/8” dia.

Renewal by supply and fixing of water drain pipe line (1” PVC Pipe)

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