SPECIAL REPAIRS TO ELECTRICAL WIRING IN HANGAR T-99 AND T-82 AT AF STATION TAMBARAM

Amount

Demolition of unreinforced cement conctrete in below ground floors and pavings exc 15 cm thickness ( below or above ground level) including removal of debries upto 1.5 KM with loading, unloading and staging at the destination complete all as specified and as directed.

Demolition of Brickwork, PCC, stone masonry built in cement mortar all as specified and as directed.

M&L PCC 100mm thick 1:2:4, type B2 using 40mm graded stone aggregate as in sub base , floors, foot path all as specified and as directed.

M&L for brick work with fly ash bricks, straight or curved on plan exceeding 6 metre mean radius built in cement mortar 1:4 as in manholes all as specified and directed.

M&L for rendering 10 mm thick on fair faces of brickwork/concrete surfaces in cement mortar 1:4, finished even and smooth all as specified and directed.

S&F Joist, channel, angle , MS flat or Tee section, fixed independently , without connecting plates as in MS framed work all as specified and directed.

S&F 7mm thick plates chequred , channels square cut or notched forming holes without any attachments and similar works conforming to Fe -290 gde E-165 all as specified and directed.

M&L PCC 1:3:6, type C1 using 20mm garded stone aggregate as in coping, cills, steps bed plates, band including necessary form work all as specified and directed.

Two coats of synthetic enamel paint over a coat of red oxide primer on new steel surfaces including preparation complete all as specified and directed.

Taking up/down of old unserviceable under ground cable of any size including protection pipe all as directed.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 240 sq mm 3.5 core all as specified and directed.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr depth and getting out in hard/dense soil all as specified and directed.

Returning and refilling of excavated soil upto a depth of 30 cm after riddling the excavated soil for laying underground cables all as specified and as directed.

Removing excavated material not exceeding 50 mtr distance and depositing where directed at a level not exceeding 1.5 mtr above the starting point all as specified and as directed.

Supply and laying un-reinforced precast concrete cable cover, class LV, type 1, flat size250x150x40mm for cable protection all as specified and as directed.

Taking down sub main wiring any description along with metal conduit and made good the disturbed surface all as specified and as directed.

Taking down unserviceable DB/metal clad boxes any description or size/way including MCCB/MCBs complete all as specified and as directed.

Taking down ceiling/air circulator fans of complete set, dismantling blades complete all as specified and directed.

M & L for painting of ceiling/air circulator fans any sweep, complete in situ with synthetic enamel paint by spraying including filling cavities with filler, one coat after cleaning all dust etc.

Taking down copper/ aluminium point wiring (light, fan, socket or power) complete fittings such as switches, sockets, ceiling rose, pendents, regulators etc complete as ordered and removing retrived materials and making good the disturbed surface of wall, floors, ceiling etc. complete all as directed and specified.

M&L for Point wiring concealed type complete with 1.50 sqmm (Nominal area) PVC FRLS insulated, un-sheathed, multistranded, copper conductor, single core, cable 1100 volts grade drawn through in and including PVC conduit along with suitable size complete with PVC conduit fittings/accessories including provn of 1.6 mm thick MS terminal boxes concealed with 3 mm thick hylem pressed laminated/hylamp sheet top cover for housing of switches,sockets, and regulators etc including 1.50 sqmm PVC insulated sheathed stranded copper conductor for earth continuity conductor and connected to common earth dolly including cutting chases & making good the surface for the following :-

(a) One light point controlled by one switch.

(b) One fan point controlled by one switch and a regulator.

(c) One 3 pin 5Amps socket point on Independent board

(d) One pin socket point on same board with other switches

Description all as per item No 21 above but with 2.5 sqmm incl earth continuity coductor 2.5 sqmm size for power point 15 amps.

S&F Ceiling rose surface PVC insulated three plates "JUMBO' type 240 volts

Supply and fix socket outlet 2/3 pin 5 amps 240 volts flush type.

Supply and fix switch socket outlet 2/3 pin 5 amps 240 volts flush type.

S&F Switch socket combination 2 in 1 multipurpose 5/16 amps 240 volts universal type.

S&F Fan regulator electronic type with 5 step control suitable for 1200/1400 mm ceiling fan.

S&F Switch flush type, 5 amps 240 volts single pole one way

S&F Switch flush type, 15 amps 240 volts single pole one way

Labour only for servicing the ceiling fan of any size/ make including greasing/ oiling/ repairs and replacing the spares such as cater pin, unserviceable/rusted nut bolts, split pins rubber wheel bearing washers, bushes all as specified and directed (NOTE :- Spares such as bearing, bush, condenser including rewinding will be measured and paid separatly as supply only).

M&L for rewinding of ceiling fan motor with super enamelled copper winding wire of same gauge and weight after cutting and removing the existing burnt/heated up windings, including cleaning of rotor, stator and varnishing, heating and providing fresh insulating materials for Ceiling fan of 1200/1400 mm sweep

Supply only GM bush suitable for ceiling fan of size 1200/1400mm sweep

Supply only ball bearing suitable for ceiling fan of size 1200/1400mm sweep

Supply only capacitor of capacity 2.5 mfd for the fans in position as directed by Engineer-in-Cahrge.

Refixing/hanging only ceiling/air circulator fan including connection complete all as specified.

S&F LED fitting 4 feet long with light source 18 Watt general purpose and wall mounted led Batten with polycarbonate LED channel & integrated electrinic driver. (Make - Bajaj Cat Part No-BCLSB 18 WH or equivalent from list of Makes)

S&F in replacement of security light fitting LED luminares New generation energy saving & environmental friendly long life versatile pressure die-cast aluminium IP65 roadway luminaire with high power LED as light source with 25W LED 5000K lamp including disconecting, removing, and connecting into electric circuit and testing. (Make - Surya Lexon Cat Part No- SLE UL 25WIP66(LXN) or equivalent from list of Makes)

Supply and fixing of LED 120W energy saving environment friendly and robust high bay /medium bay LED IP 65 with high efficacy. (Make - Bajaj Cat Part No- BGHBM 120W LED XE or equivalent from list of Makes)

M&L Sub main wiring 2x6.0 Sqmm single core FRLS PVC insulated unsheathed cable single core multistranded copper conductor 1100 volts grade drawn through with 20mm metal conduit and conduit accessories fixed on surface/concealed with suitable clamps/saddles including one run of 6.0 sqmm FRLS PVC insulated copper cable for continuous earth conductor connected to common earth dolly.(Note : Two run cable and one run for earth and 1 run conduit together shall be measured as one unit length)

M&L Sub main wiring 2x2.5 Sqmm single core FRLS PVC insulated unsheathed cable single core multistranded copper conductor 1100 volts grade drawn through with 20 mm metal conduit and conduit accessories fixed on surface/concealed with suitable clamps/saddles including one run of 2.5 sqmm FRLS PVC insulated copper cable for continuous earth conductor connected to common earth dolly. (Note : Two run cable and one run for earth and 1 run conduit together shall be measured as one unit length)

M&L Sub main wiring 4x2.5 Sqmm single core FRLS PVC insulated unsheathed cable single core multistranded copper conductor 1100 volts grade drawn through with 25 mm metal conduit and conduit accessories fixed on surface/concealed with suitable clamps/saddles including two run of 2.5 sqmm FRLS PVC insulated copper cable for continuous earth conductor connected to common earth dolly. (Note : Four runs cable and two run for earth and 1 run conduit shall together measured as one unit length)

M&L Sub main wiring 4x2.5 Sqmm single core FRLS PVC insulated unsheathed cable single core multistranded copper conductor 1100 volts grade drawn through with 25 mm metal conduit and conduit accessories fixed on surface/concealed with suitable clamps/saddles including one run of 2.5 sqmm FRLS PVC insulated copper cable for continuous earth conductor connected to common earth dolly.( Note : Four runs cable and two run for earth and 1 run conduit shall together measured as one unit length)

M&L Sub main wiring 3x2.5 Sqmm single core FRLS PVC insulated unsheathed cable single core multistranded copper conductor 1100 volts grade drawn through with 25 mm metal conduit and conduit accessories fixed on surface/concealed with suitable clamps/saddles including one run of 2.5 sqmm FRLS PVC insulated copper cable for continuous earth conductor connected to common earth dolly. ( Note: Three runs cable and one run for earth and 1 run conduit shall together measured as one unit length)

M&L Sub main wiring 2x1.5 Sqmm single core FRLS PVC insulated unsheathed cable single core multistranded copper conductor 1100 volts grade drawn through with 20 mm metal conduit and conduit accessories fixed on surface/concealed with suitable clamps/saddles including one run of 1.5 sqmm FRLS PVC insulated copper cable for continuous earth conductor connected to common earth dolly. (Note : Two run cable and one run for earth and 1 run conduit together shall be measured as one unit length)

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 sq mm 3.5 core all as specified and directed.

S&F Single pole and neutral enclosure with a two pin and earth plug and socket complete one single pole MCB 20/30 Amps, 240V complete concealed on wall and connecting with all connections all as specified and directed.

Supply & fixing of Vertical type sheet metal enclosure MCB DB TPN 4 ways double door type including 125 Amps MCCB 4 Pole 415 V,16 KA incomer with suitable bus bar surface/concealed on wall and connecting with all connections all as specified and directed

Supply & fixing of Vertical type sheet metal enclosure MCB DB TPN 4 ways double door type including 63 Amps MCCB 4 Pole 415 V,16 KA incomer with suitable bus bar surface/concealed on wall and connecting with all connections all as specified and directed.

Supply & fixing of Sheet metal enclosure with distribution board Double Door 230 volts SPN 8 way with suitable Bus bar and provision for MCBs/ isolators concealed on wall and connecting with all connections all as specified and directed.

Supply & fixing of Sheet metal enclosure with distribution board Double Door 230 volts SPN 4 way with suitable Bus bar and provision for MCBs/ isolators concealed on wall and connecting with all connections all as specified and directed.

S & F in replacement of MCB TPN 63 A, 16 KA , 415V B Curve all as specified and directed.

S & F in replacement of MCB's 6-32 amps, 10 KA , SP 240V B Curve all as specified and directed.

S & F in replacement of MCB SPN 40 Amps, 10 KA , 240V B Curve all as specified and directed.

Material and labour for earthing complete with GI plate electrode 600x600x6mm thick, buried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of plate not less than 1.5m below ground level connected to earth lead of 4mm GI wire means of bolts, nuts, washers of galvanized all as shown in electrical plate No.3 of SSR Part-I including necessary excavation and earth work. PCC 1:3:6 type C1 chamber, RCC cover in 50mm thick 1:2:4 type B1 with 8mm CTD 140mm centre to centre with suitable handle, watering pipe 20mm dia light grade pipe with funnel, charcoal salt connected to earthing test point all as specified including testing and commissioning on completion

M&L cement concrete (1:3:6) type C-2 using 40mm graded aggregate in foundation, filling and mass concrete in cutting portion of roads/ hard surface/ cement surface complete all as specified and directed.

S&F pressed steel sunken box of size 6"x4" surface/concealed on wall for mounting of 15 Amp piano type Switch or 5 Amp SSC including provn of suitable size hylam sheet cover 3mm thick and making good distrubed surfaces including taking down of old unserviceable complete all as specified and directed.

S&F pressed steel sunken box of size 12"x4" surface/concealed on wall for mounting of 15 Amp piano type Switch and 5 Amp SSC including provn of suitable size hylam sheet cover 3mm thick and making good distrubed surfaces including taking down of old unserviceable complete all as specified and directed.

Design,Supply, installation, testing and commissioning of weather/dust /vermin proof CPRI approved factory made Cubical type floor mounted LT panel, minimum size of 3.0x1.50x0.60M (WXH/D), indoor type factory fabricated made out of CRCA sheet of 2.00 mm thick ,fully enclosed and angle iron frame of size 50 x 50 x 6mm thick and T section with front openable double door shutter, dust and vermin proof and rear opening complete with locking arrangement, having a system of three phase bus bars of aluminium of suitable size of 1000 Amps duly color coded insulated and mounted on Epoxy/porcelain insulators in totally enclosed chamber with three phase and neutral 415 volts, AC, system prewired with suitable copper wire PVC insulated with all control accessories, provn of suitable cable glands, duly powder coated of approved quality over a coat of oxide primer with sufficient free space complete to include the following accessories:-

Sl.item No. 62 Contd/…Note:- a) Minimum inner space of LT Panel for installtion of all accessories shall 3.0MX1.50X0.60M. No addl cost will be (paid if reqd during design of LT Panel) for enhancement of dimension of LT Panel mentioned. b) Necessary earth work like breaking of floor/ excavation/ PCC for grouting shall be included in the quoted rate. (c) Air Circuit Breaker, AC, 415V, 630A, 50KA, four pole, microprocessor release IPR E (4 Pole), draw out type, electrically operated (Make :- Havells Code No- IHAFE2E060 or Eqquivallent in Siemens / ABB / Schneider ) (Incomer).

Sl.item No. 62 Contd/… (Specifications of ACB) (a) Mounting - Drawout mounting with safety shutters. (b) Type of opetaion : Electrically operated with 230V AC motor with manual Handle. (c) Closing/Tripping coil/U-V Voltage : 230V AC. (d) Relay type : Microprocessor based with earth leakage, over current, short circuit protections (Siemens - ETU series 45 or equivalent). (e) Aux Contacts : Min 7 NO +7 NC, 3NO + 3NC extended upto panel terminal blocks for remote PLC interlock. (f) Multifunction meter :- Each ACB panel bay will display current / voltage through MFM of Make: Elite/Secure, Conserve /Schneider. (g) Local/Remote switch :- Panel needs to be equipped with local/remote switch with wiring of remote upto terminal block. (h) Indication : Green (ON) and RED (OFF) indication of each ACB panel console. (j) Extended cable bus car :- Hence proper bus bar chamber size to accomodate all cables.

Design,Supply, installation, testing and commissioning of weather/dust /vermin proof CPRI approved factory made Cubical type floor mounted LT panel, minimum size of 3.0x1.50x0.60M (WXH/D), indoor type factory fabricated made out of CRCA sheet of 2.00 mm thick ,fully enclosed and angle iron frame of size 50 x 50 x 6mm thick and T section with front openable double door shutter, dust and vermin proof and rear opening complete with locking arrangement, having a system of three phase bus bars of aluminium of suitable size of 1000 Amps duly color coded insulated and mounted on Epoxy/porcelain insulators in totally enclosed chamber with three phase and neutral 415 volts, AC, system prewired with suitable copper wire PVC insulated with all control accessories, provn of suitable cable glands, duly powder coated of approved quality over a coat of oxide primer with sufficient free space complete to include the following accessories:-

Sl. Item No. 66 Contd/…: Note:- a) Minimum inner space of LT Panel for installtion of all accessories shall 3.0MX1.50X0.60M. No addl cost will be (paid if reqd during design of LT Panel) for enhancement of dimension of LT Panel mentioned. b) Necessary earth work like breaking of floor/ excavation/ PCC for grouting shall be included in the quoted rate. (c) Air Circuit Breaker, AC, 415V, 630A, 50KA, four pole, microprocessor release IPR E (4 Pole), draw out type, electrically operated (Make :- Havells Code No- IHAFE2E060 or Eqquivallent in Siemens / ABB / Schneider ) (Incomer).

Sl. Item No. 66 Contd/…:(Specifications of ACB) (a) Mounting - Drawout mounting with safety shutters. (b) Type of opetaion : Electrically operated with 230V AC motor with manual Handle. (c) Closing/Tripping coil/U-V Voltage : 230V AC. (d) Relay type : Microprocessor based with earth leakage, over current, short circuit protections (Siemens - ETU series 45 or equivalent). (e) Aux Contacts : Min 7 NO +7 NC, 3NO + 3NC extended upto panel terminal blocks for remote PLC interlock. (f) Multifunction meter :- Each ACB panel bay will display current / voltage through MFM of Make: Elite/Secure, Conserve /Schneider. (g) Local/Remote switch :- Panel needs to be equipped with local/remote switch with wiring of remote upto terminal block.

Supply, install of fabricated frame for fixing of Distribution Board made out of two Nos MS Angle iron size 50x50x6mm thick of length 90CM each for legs including Flat iron of size 50mmx5mm thick of length 30CM each horizontally welded including provision of holes for fixing of DBs with nuts & bolts including making holes on hard floor of size 20cmx20cmx30cm and grouting in PCC 1:4:8 complete all as specified and directed.

Taking down U/S GI Pipe mounting bracket with clamp set of Building Security light and S&F of GI Pipe mounting bracket made out of GI pipe 32mm dia or any modification required in it as per site requirement light grade of length 1.5 mtr with two half clamps made out of 50x6 mm Flat Iron with nuts bolts and washers fixed on wall of building all as specified and directed.

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