MAINTENANCE AND REPAIR OF VCBs RING MAIN UNITS DISTRIBUTION TRANSFORMERS LT PANELS AND CONNECTED WORKS AT INS VALSURA JAMNAGAR

Amount

Excavation in trenches not exceeding 1.50m wide and not exceeding 1.50m in depth and getting out in soft / loose soil for laying cables, Pipes etc complete all as specified and as directed.

Excavating in trenches not exceeding 1.50m wide and not exceeding 1.50m in depth for laying cables/ pipes and foundation, etc. or for shafts, wells, cesspits, manholes, pier holes etc. not exceeding 10 sqm on plan and getting out in hard rock complete all as specified.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick complete all as specified and as directed.

Removal of excavated material [soil] to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

Material and labour for dry river sand cushioning over and around the cable for cable protection in trenches, levelled and punned down complete all as specified and as directed. Note: The punned down thickness shall be measured for payment.

Taking down old existing HT PCC Cable Cover complete all as specified.

Supplying and laying unreinforced precast cement concrete cable covers,ISI Marked Class HV, Flat, Type - 1, of size 300 mm X 180 mm X 40mm in trenches for cable protection, embossed with "ELECTRIC" on the top surface complete all as specified and as directed by the Engineer - in - Charge.

Laying only HT PCC cable covers for protection of UG cables in trenches, obtained from item No. 07 here in above.

Supplying, laying and commissioning of HT XLPE cables, insulated, screened, PVC bedded, galvanized steel strip armoured, earthed, electric power cable with Aluminium conductor, 11 kV grade, 3 Core, 95 Sqmm cross sectional area laid in trenches/ fixed on poles including taking down old cables complete all as specified and as directed. Make: Nicco/ Havells/ Polycab Note: Earth work, excavation, cable covers and sand cushioning shall be measured and paid separately.

Supply, laying, jointing, testing 3½ Core, cross-sectional area 185 Sqmm XLPE, insulated outersheathed and innersheathed, galvanised steel armoured, heavy duty electric cable with aluminium conductor, 1100 volts grade, conforming to IS:7098 (Part-II) and laid in trenches, pipe, ducts including taking down existing damaged UG cable complete all as specified and as directed.

All as per item No. 10 here in above, but for 3½ Core, cross-sectional area 120 Sqmm

All as per item No. 10 here in above, but for 3½ Core, cross-sectional area 50 Sqmm

All as per item No. 10 here in above, but for 4 Core, cross-sectional area 16 Sqmm

Taking down old existing LT PCC Cable Cover complete all as specified.

Supply and laying un-reinforced precast concrete cable cover, class LV type flat size 250mm x 150mm x 40mm for protection of underground cable in trenches complete all as specified.

Laying only old PCC Cable Cover for protection of underground cable in trenches, obtained from item No. 14 here in above.

S&F 50 mm bore high density polyethylene pipes (HDPE) of pressure rating 6 kgf/cm2 for protection of cable laid in trenches complete as specified.

S&F 100 mm bore GI tubing light grade with necessary fittings suh as bends, tees, elbows, etc in trenches, fixed on wall complete all as specified.

All as per item No. 18 here in above, but 80 mm bore.

All as per item No. 18 here in above, but 50 mm bore.

Material and labour for replacement of old burnt jumper connection of all three phase with new jumper connection by using Aluminium conductor steel reinforced [ACSR] [MINK] including necessary lugs, nuts, bolts and alkathline pipe with color code [RYB] suitable for 11000 volts complete all as specified and as directed. Note: Jumper connections from HT bus bar to GOD/ DO connections for three phase will be measured as one job.

Material and Labour for heat shrinkable HT, 11 kV, outdoor type, cable straight through joint suitable for 11 kV, 3 Phase, AC, 50 Hz, 3 Core, 95/120 Sqmm XLPE Cable including jointing materials etc complete all as specified and as directed.

Material and labour for heat shrinkable HT, 11 kV, indoor type, cable end joint suitable for 11 kV, 3 Phase, AC, 50 Hz, 3 Core, 95/120 Sqmm XLPE Cable including jointing materials complete and taking down old end joints all as specified and as directed.

Material and labour for heat shrinkable HT, 11 kV, outdoor type, cable end joint suitable for 11 kV, 3 Phase, AC, 50 Hz, 3 Core, 95/120 Sqmm XLPE Cable including jointing materials and taking down old end joints all as specified and as directed.

M &L Straight through heat shrink joints PVC/ XLPE insulated armoured heavy duty LT UG Cables with aluminium conductor cross sectional area 16 Sqmm 4 Core including aluminum lugs/ thimbles complete all as specified.

All as per item No. 25 here in above but cross sectional area 25 Sqmm to 50 Sqmm, 3.5 Core

All as per item No. 25 here in above but cross sectional area 70 Sqmm to 95 Sqmm, 3.5 Core

All as per item No. 25 here in above but cross sectional area 120 Sqmm to 185 Sqmm, 3.5 Core

All as per item No 25 here in above but cross sectional 240 Sqmm to 300 Sqmm, 3.5 Core

All as per item No. 25 here in above but cross sectional area 400 Sqmm to 500 Sqmm, 3.5 Core

Dismantling and taking down insulators of any type, any size from any height.

Material and labour for pin type insulator, porcelain, vitreous 150mm high and 150mm dia white, brown or green single disc assembly complete all as specified and as directed.

Material and labour for Disc type insulator, porcelain, vitreous 145mm high and 225mm dia ball and socket type, white, brown or green single disc assembly complete all as specified and as directed.

S&F in repair Air Break Switch, triple pole, mechanically operated mounted on insulators and steel frame, with operating mechanism worked from ground level, for current rating up to 200 amps complete with including insulators horizontal/ vertical rod and operating pipe of suitable size and length including taking down of old unserviceable air break switch, jumper connections and reconnecting of suitable size and length and making connection to new AB switch gang operated complete all as specified and as directed.

S&F in repair HT 11 kV drop out fuse assembly with insulator and base including fuse tube, fuse carrier top connectors incoming and out going connectors complete all as specified and as directed. Note: Rate include taking down existing unserviceable/ Faulty DO fuse assembly and fix the new one and make the incoming and out going connections and switch on the supply through the new DO fuse Assembly all as directed by Engineer-in-Charge.

M&L for Danger Notice Plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT of size 25X20 cm complete all as specified and as directed by Engineer-in-Charge.

M&L for PCC 1:3:6 type C1 20 mm graded aggregate in coping of pole complete

M&L for PCC 1:4:8, type D2 (using 40 mm graded granite stone aggregate) as in foundations, filling and mass concrete complete all as specified.

M&L for painting HT two pole structure of 11 mtr using cement base paint after cleaning the pole surface and painting cross arms surface with silver paint after cleaning the cross arm complete all as specified and as directed.

All as per item No. 39 here-in-above, but for HT four pole structure of 11 Mtr. Note for item No. 39 & 40: Colour will be as directed by Engineer-in-Charge during the commencement of work. Each two pole/ four pole structure is considered as one unit for measurement contractor has to arrange the necessary T&P for painting the pole up to 11 Mtr irrespective of location (Inside Valsura area) including the pole, cross arm, section, at pole structure irrespective of number of cross arms in structure.

Dismantling cross-arms of MS channel or angle sections etc. complete.

Material and Labour for Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under aluminium coat and one aluminium finishing coat of paint complete all as specified and as directed.

S&F in repair lightening arrestors high tension expulsion type complete with all fittings distribution class discharge capacity 5 kA suitable for 11000 volts confirming to IS-3070 (Part I) 1974 complete all as specified and as directed.

S&F in repairs earth continuity conductor or main earthing lead of Galvanised iron strip of size 32x6 mm, fixed on pole from existing earth test point complete all as specified and as directed.

S&F in repairs HT DO fuse element 11 kV, 20A rating. Make: Electro comfort, NS Transmission Pvt ltd

S&F in repairs HT DO fuse element 11 kV, 100A rating., Make: Electro comfort, NS Transmission Pvt ltd

S&F in repairs HT DO fuse element 11 kV, 40A rating. Make: Electro comfort, NS Transmission Pvt ltd

S&F in repairs HT DO fuse element 11 kV, 60A rating. Make: Electro comfort, NS Transmission Pvt ltd.

S&F in repairs HT DO fuse element 11 kV, 80A rating. Make: Electro comfort, NS Transmission Pvt ltd.

M&L for servicing and repair to HT RMU/ VCB of size up to 630 Amp complete by taking the shut down with prior intimation and opening the Oil chamber of HT switch gear and cleaning the contacts put the fuse in position and testing complete all as specified and as directed.

S&F in repairs Shunt trip coil for HT VCB of C&S make

S&F in repairs closing coil for HT VCB of C&S make

S&F in repairs spring charging motor for HT VCB of C&S make

S&F in repairs Limit switch of type LSMS11, AC 15, 3A/400 V for HT VCB of C&S make

S&F in repairs Limit switch of type MU25-I/l 2, 16 A/250 V AC for HT VCB of C&S make

S&F in repairs Breaker control switch 10A, spring return to neutral 3 position & label trip-neutral-close for HT VCB of C&S make

S&F in repairs Hand reset master trip relay, aux-110V DC (CLR-H-3). Make: C&S

S&F in repairs IDMT non directional O/C & E/F relay aux.-110V DC (IRI-PRO-3I-EI-5-5) complete all as directed.

S&F in repairs HT HRC fuse of 10 to 63 Amp as per sample. Make: L&T/ Bussmann

S&F in repairs CT's 200-100/5-5A dual core, resin cast ,core 1:- metering-15VA CL-1, core2:- protection-15VA CL-5P10, STC-18. 4kA for 3s

S&F in repairs CT's 100-50/5-5A dual core, resin cast, core1:- metering-15VA CL-1, core2:- protection-15VA CL-5P10, STC-18.4kA for 3s

S&F in repairs VT 11kv/ √3/110 vac/√3, 200VA, CL-1, 1 phase resin cast

S&F in repairs Digital load manager 3ph. 4 wire (a, v, kwh, kVA, pf, kVAR) CTR-200-100/5A, PTR-11kv/ √3/ 110vac/ √3, CL-1 Aux.-110V, DC, size - 96x96mm (Note:- RE 300p of L&T Make)

S&F in repairs Analog ammeter 0-100-200A CTR-200-100/5A CL-1 size 144x144mm

S&F in repairs Analog ammeter 0-50-100A CTR-100-50/5A CL-1 size 144x144mm

S&F in repairs 0-15kV analog voltmeter PTR-11kv/110 vac. Size - 144x144mm

S&F in repairs HT fuse 11kV/3.15A, length - 195mm, diameter - 25.4mm

S&F in repairs Led type indication lamp red, yellow, blue color 63.5v ac, dia - 22.5mm

S&F in repairs Led type indication lamp red, green, blue, white color 110v ac, dia - 22.5mm

S&F in repairs Space heater 80w 230v ac

S&F in repairs Thermostat 0-110°c 15A 230V AC

S&F in repairs VCB breaker mechanism

S&F in repairs Spout

S&F in repairs PT Spout

M&L for Power pack suitable for VCB with Input Voltage 230V, AC, O/P -110 V DC, with LED indication showing Main ON, Battery Mode, Battery Low, Out Put O/Load etc complete all as per existing type.

Surface excavation not exceeding 30cm deep and averaging 15cm deep and getting out soft/ loose soil complete all as specified and as directed.

M&L for machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 60mm thickness M-35 Grade Complete all as specified and directed.

Taking out the existing transformer from site and transporting to workshop for servicing and repairing including loading unloading and handling to carry out the following repairs and refixing the same after repairing, installation, testing and commissioning at its original/ new location all as directed.

Decanting the transformer oil and checking of all parts for repair/ replacement of parts of cap from 63 to 400 kVA capacity of distribution transformer 11/0.440 kV .

Rewinding of coils all as per its original specifications by copper conductor and with HT/ LT necessary insulation materials.

Replacement of HT 11 KV bushing with brass terminal, neoprene rubber gasket and washers etc complete.

Replacement of LT bushing with brass terminal, neoprene rubber gasket and washers etc complete.

Supply and fill new Transformer oil up to conservator level marking as per IS 335 having dielectric strength not less than 40 KV at 2.5mm gap.Make: Electrol, Power Oil, Indian Oil, Savita

Replacement of silica Jel in existing transformer breathers.

Replacement of HT 11 KV off-load tap changing assembly complete

Painting of Transformer body complete with one coat of Simense gray paint with spray paint all as directed by the Engineer-in-charge.

Filtration of transformer oil of the transformer at site by providing filtration machine at site

M&L for Earthing complete with galvanised steel earth plate electrode 600X600X6 mm 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 32x6 mm GI strip means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected or indicated including testing on completion including necessary excavation, earth work, PCC pit, RCC cover, funnel with watering pipe 20mm bore light grade, GI protection pipe 15mm bore light grade complete all as specified and as directed.

vijay infraprojects pvt ltd

Ravi enterprise

JAMNAGAR ELECTRIC AND MACHINERY CO