MAINT/REPAIRS TO CAPACITOR PANELS ,ACBS, EARTHING SYSTEM ALLLIED WORKS AT AFAC UNDER AGE (I) (AF) COIMBATORE

Amount

M & L for retreatment of earthing by demolition of earth chamber and removing old expired Chemical/Charcoal/Salt and refilling new charcoal & Salt crystals of 50 Kg each including construction of new earth chamber of existing size refilling of soil, watering and well ramming fixing of funnel complete with colour code such as green for body earthing/blue for neutral earthing all as specified in electrical Plate No 3 all as specified and directed.

M&L for repair/servicing of capacitor panel 25KVAR/30 KVAR/50 KVAR ) and carry out repairs such as dismantling of power contactros,auxillary contactors ,CT Coil ,checking the HRC fuse and replacement if any damaged ,checking the control wiring and refixing all the components after proper servicing all as specified and as directed by Engineer in Charge. Note: Spare parts any required will be measured separately)

Supply only 6 stage APFC 415 V, AC power factor relay all as specified and directed. AE/MECCO/SIEMENTS/INDOASIAN

Supply only 8.5 KVAr capacitor duty contactors with built in surge suppressor all as specified and directed.. Make L&T MO C 8.5 or equivalent in Havells,or AE/MECCO/SIEMENTS/INDOASIAN/Schneider

Supply only 25 KVAr capacitor duty contactors with built in surge suppressor. Make L&T MO C 8.5 or equivalent in Havells or AE/MECCO/SIEMENTS/INDOASIAN/Schneider

Supply only 100/5 CT coil suitable to fix in APFC panel . Make Havells QSCELFBOL001 or equivalent in Schneider/L&T/AE/MECCO/SIEMENTS/INDOASIAN

Supply only 150/5 CT coil suitable to fix in APFC panel . Make Havells QSCELML0138 or equivalent in Schneider/L&T/AE/MECCO/SIEMENTS/INDOASIAN

Supply only 5KVAR heavy duty cylindrical capacitor Rated Voltage 440V AC, 3ø, 50Hz, Delta Connection. Make Havells PHANTOM 440V 50Hz-5KVAr 3PH/AE/MECCO/SIEMENTS/INDOASIAN

S&F in replacement LED indication lamp (Red,yellow,Blue ,Green colour) surface mounted suitable for fixing in the LT panel all as specified and directed. Make L&T/AE/MECCO

S&F in replacement three phase digital voltmeter with 4 digit LED display of accuracy 0.5 all as specified and directed. Make Schneider/L&T/Legrand/ AE/MECCO

S&F in replacement three phase digital Ammeter with 4 digit LED display of accuracy 0.5 all as specified and directed. Make Schneider/L&T/Legrand /AE/MECCO

S&F in replacement factory made 50 KVAR Automatic power factor control panel of size 1050 x 1000 x 250made up of 2 mm thick CRCA sheet, Modular, compartmentalized, Free Standing, Floor Mounting, Front hinged doors removable bottom gland plates for incoming cables, dust and vermin proof protection) with TP Aluminium Busbar, complete with busbar connection, internal wiring, name plates, advanced microprocessor based IPFC , with auto or manual switch option, well designed powder coated panel box with Siemens grey colour confirming to IEC 61921/ IS 8623 all as specified and directed. Make Havells QHKTCB5050X0 50 KVAr / 415V Securities APFC Panel CYCAP or equivalent in Schneider or L&T

Material and labour for chemical earthing complete with copper earth plate electrode of size 900mmx600mmx5mm thick buried directly in ground vertically to a depth not less than 4.25 metre below ground level with a bottom layer bentonite slurry of 100mm thick, earth plate surrounded with graphite powder, vegetable soil mixture, charcoal and common salt in equal proportion around and 150mm above the plate and 100mm thick MGSO4 (Magnesium sulphate) as top layer and the remaining portion filled with excavated earth and connected with copper earth strip 32x6mm including test point duly brased & by proper treatment of jointing surfaces or by brazing and connected to main switch/control board up to 10 metre away from earth electrode and including GI pipe medium grade 40mm bore protection pipe & necessary excavation and earth work in any strata, PCC chambers in PCC 1:3:6 type C-1 using 20mm graded crushed stone aggregate, RCC 1:2:4 type B-1using 20mm graded crushed stone aggregate cover slab 50mm thick with 8 mm dia TMT bars at 140mm C/C both ways, with lifting handle, watering pipe of GI medium grade 25mm dia, wire mesh, funnel lugs etc including removal of existing unserviceable earthing set complete all as specified and as directed.. Charcoal – appropriate qty (min 250 Kg)

Note for above item 1 The length of the copper strip beyond 10 mtr shall be measured and paid separately. 2. All joints of copper strip shall be brased only. 3. Earth test result of earth pit shall be less than 1 ohm, during the maintenance period also to be maintained less than 1 ohm, falling which new earthing to be provided by the contractor without any extra cost. 4. The rate quoted by the contractor shall be deemed to including (a) testing and submission of earth result as desired (b) Excavation up to 5.5 mtrs depth, returning, refilling in any type of soil. 5. Minimum 05 alternative layers of charcoal and salt and 2” layer of magnesium sulphate. 6. If the soil is full of stone then good soft soil shall be provided. 7. Charcoal – appropriate qty (min 250 Kg) 8. Salt Crystal – appropriate qty (min 200 Kgs) 9. Magnesium sulphate crystal minimum – 100 Kgs 10. 25mm dia medium grade pipe with funnel, meshed along with cap of required length. 11. Test point terminal block made of gun metal or phosphorous bronze size 75x75x25mm drilled and screwed including 3 Nos 8mm dia 25mm long hexagonal head screw.

Supply and Laying unplasticised PVC pipes of pressure rating 10Kgf/cm ² fixed complete to walls, ceilings or in floors etc, type of size 20mm bore including taking down the unsv pipe complete all as specified and as directed . Make: Prince/Finolex/Hycount/Duplon/Dutron/Supreme

Supply and fix stop valve of PTMT any colour of 20mm bore high pressure screwed for iron pipe and fixed (Minimum weight 15mm-90gms/20mm-92gms) complete all as specified and as directed . Make:Jaypee/GMP/Neta/Zolota/Prayag Polymer

Earthing complete with galvanised steel earth plate electrode 60cmx60cmx6mm thick burried directly in ground vertically to a depth not less than 2.25 metre below ground level with top edge of the earth plate at a depth not less than 1.5 M below ground level, earth plate surrounded by 15cm thick and packed with layers of charcoal dust and common salt , earth lead 25 x 4 mm GI strip connectd to GI earth plate electrode by means of bolts, nuts, check nuts, washers of galvanised iron and protected by GI pipe all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion

Excavation in trenches not exceeding 1.5 m wide and n.exc. 1.5 m deep and getting out in hard/dense soil for laying of UG cables all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers n. exc. 25 cm thickness with hard/dense soil all as specified and directed.

Removing excavated materials (soils) to a distance not exc 50m and depositing where directed at a level not exc. 1.5 m above the starting point all as specified and directed.

Earth cushioning to UG cables using excavated soil riddled by using large sieve to separate the composite particles/roots etc and refilling in trenches all as specified and directed. Note: Punned thickness will be measured for payment.

Supply and lay burnt bricks sub-class 'B' designation 75 for cable protection all as specified and as directed.

Supply and lay XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 50 sq.mm X 3.5 core ,including taking down the unserviceable LT UG cable all as specified and as directed. Make:CCI/Havells/Finolex/Polycab/Gloster/ACC Chhattisgarh

S&F MCCB TPN125 A 36 KA 415 V, adjustable type in repairs all as specified and directed. Make:L&T/ABB//SIEMENS/Schneider/Havells

S&F MCCB TPN 100A 25 KA 415 V, adjustable type in repairs all as specified and directed. Make:L&T/ABB//SIEMENS/Schneider/Havells

S&F MCCB TPN 63 A 25 KA 415 V, adjustable type in repairs all as specified and directed. Make:L&T/ABB//SIEMENS/Schneider/Havells

S&F TP MCB 25 ,C series 415 Volt in repairs all as specified and directed. Make:L&T/ABB//SIEMENS/Schneider/Havells

M&L for painting of panel board of (Area not less than 2 Sqm mtr and Not more than 5 Sq mtr) inner & outer complete with synthetic enamel paint by spraying including filling cavities with filler one coat after cleaning all dust/rust including writing the capacitor panel details all as directed by Engr-in-Charge. Note: The Quoted rates are inclusive of white wash to foundation of Panel Board/ Painting to Angle Frames complete all as specified and directed.

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