82605 REPAIRS HT LT INSTALLATION IN REPAIR DEHYDRATION OF TRANSFORMERS REPAIR TO VCB TWO POLE AND 4 POLE STRUCTURES ETC UNDER AGE(I) NAVY CHENNAI

Amount

SCHEDULE 'A' PART-I [ E/M WORKS]

Repair/Maintenance of LT Panel board / APFC panel any type and size by taking shut down,cleaning and removing of carbon particles, rubbing of heated portion of bus bar and cleaning complete and fine setting, tightening of all joints in bus bar, earthing etc and welding of broken doors including replacement of u/s nuts/bolts/washers and replacement of corroded glands, lugs/ thimbles and tightening them properly and testing all as directed. Note:- Spare parts for LT / APFC panel will be measured and paid separately.

Repair/Maintenance and complete servicing of HT VCB’s including disassembling of operating mechanism parts, well cleaning with petrol CTC 226, replacing unserviceable parts and accessories like spring, gasket, coils, nuts, bolts and washers etc, oiling and greasing of moving parts, re-assembling, fine setting of mechanism, well cleaning and de-carbonizing of arc control pot, fixed and moving contact including checking testing, tripping check of HT VCB’s making perfect operational in manual and electric mode including maintenance and well cleaning the complete, replacing unserviceable parts and components etc complete all as directed. Note:- Spare parts for VCB will be measured and paid separately.

THE FOLLOWING SPARES ARE SUPPLY ONLY FOR ITEM NO 1 AND 2 :-

(a) Digital ammeter flush type 96 sqmm with suitable fixing arrangement for easily fixing in existing LT panel including necessary wiring complete all as specified and directed

(b) Digital voltmeter flush type 96 sqmm with suitable fixing arrangement for easily fixing in existing LT panel including necessary wiring complete all as specified and directed

(c) Indicator lamp assembly LED type (RYB) in existing LT panel with suitable wiring and volts complete all as specified and directed

(d) LT RG tape wounded current transformer up to 200/5, 10 VA with suitable connection and testing complete all as specified and directed.

(e) LT RG tape wounded current transformer up to 250/5, 10 VA with suitable connection and testing complete all as specified and directed.

(g) Capacitor bank long life 3 phase 440 volts of capacity 5 KVAr (Resin filled) complete all as specified and directed

(h) Capacitor bank long life 3 phase 440 volts of capacity 10 KVAr (Resin filled) complete all as specified and directed

(j) Capacitor duty contactor for APFC pannel 3 phase 440 v operating coil voltage 240 volts,32 Amps complete all as specified and directed

(k) Spring Bushing for VCB breakar ON and OFF mechanisum in existing VCB panel complete all as specefied and directed.

(l) HRC Fuse of 10 Amps rated capacity suitable for HT VCB Panel complete all as specefied and directed.

(m) Heater suitable for HT VCB Panel complete all as specefied and directed.

(n) Name plate suitable for Incoming and Out going HT VCB Panel complete all as specefied and directed.

Repair/Maintenance and complete servicing of 11 KV HT VCB control panel any size/capacity, well cleaning and de-carbonizing, including checking testing, tripping check of HT VCB’s making perfect operational in manual and electric mode etc complete all as specified and directed.

Repair/Maintenance and complete servcing of 11 KV HT PT , well cleaning and de-carbonizing, including checking, testing, making perfect operational etc complete all as specified and directed.

Maintenance and complete calibration and setting as per fault level of HT VCB’s relay11 KV with suitable instrument including T&P etc complete all as specified and directed.

Supply & fixing in replacement power factor controller relay 8 step 415 Volts, AC,50 Hz to automation to power capacitor including replacement of control wring as required at site including addition/alteration if required complete all as specified and directed.

Supply & fixing in replacement 100 AH, 12V Maintanance free battery including replacement connecting materials such as terminals,lead, thimbles, lugs, nuts, bolts and washers as required at site complete all as specified and directed.

Supply, install & testing of constant current, constant voltage (CCCV) battery charging unit to charge 36 volts DC battery bank Suitable to accomadate 03 numbers 12 volts 100 AH batteries SCR controlled and consisting of double wound transformer an SCR/diode bridge, smoothing choke, capacitors and electronic circuits for controlling the voltage and current housed in a power coated sheathed steel cabinet not less than 2.0 mm thick suitable for floor mounting and fitted with a digital voltmeter & ammeter and the working voltage 180-270 volts. The charger should has indications for mains supply, mode of charging (float or boost), polarity batter reverse & over load conditions. The charger has protection for over load, short circuit, reverse polarity & surge/transient. The charge have to alarm on fuse blowing & short circuit. All protections to charger & its meter shall be provided with suitable rating MCB only including providing battery stand made out of MS tublerto accomadate 3 Nos battery and taking out old unserviceable complete all as specefied and as directed.

M & L for New earthing complete with Copper plate earth electrode 600X600X3mm thick buried directly in ground (earth pit not less than 2.25 meter below ground level) with top edge of the plate not less than 1.5 metre below normal ground level connected to 20x3mm copper strip at two points by means of bolts and nut, check nut and washers including charcoal dust, common salt, necessary excavation in hard/dense soil, returning filling in and removal of surplus soil to a distance up to 50metres, PCC pit in 1:3:6 type CI (using 20mm grade stone aggregate) RCC 1:2:4 type B-1 (using 20mm grade stone aggregate ) 50mm thick pit cover, reinforced with 8mm dia TMT bars 75mm c/c, both ways MS handle 12mm dia, GI funnel, wire mesh and GI watering pipe of 20mm bore GI (light grade) and earth lead protection pipe 40mm bore (light grade) all as specified, directed and shown in electrical plate No 3 of SSR Part-I including testing complete. Note : Copper strip and protection pipes 40 mm GI light grade up to 7.5 metre is included in unit rate and beyond that the same will be measured separately.

Supply & fixing for Copper strip 20x3 mm on wall with insulaters/batten or recessed or buried in ground complete all as specified and directed.

Material & Labour for Cement concrete in foundation, filling and mass concrete type B2 1:2:4 (40mm graded aggregate). Not exceeding 15 CM in deapth for plinth protaction for path including dismentling of old surface complete all as specified and directed.

Taking out existing LT/HT cable off sizes up to 300 Sqmm 2 to 4 core from duct/wall/floor/trenches and re-laying the same serviceable cable after fault rectification in existing position with supply and fixing connecting materials such as thimbles, lugs, nuts, bolts and washers as required at site complete all as specified and directed.

Taking down the unserviceable LT cable of any size from trenches/ walls /floor etc Supply & laying of LT XLPE Insulated screened aluminium stranded conductor cable PVC bedded galvanized strip armoured heavy duty 1100 volt cross sectional area 185 Sqmm 3 .5 Core conforming to IS 7098 lead in duct/trenches complete all as specified and directed

Taking down the unserviceable LT cable of any size from trenches/ walls /floor etc Supply & laying of LT XLPE Insulated screened aluminium stranded conductor cable PVC bedded galvanized strip armoured heavy duty 1100 volts cross sectional area 120 Sqmm 3.5 Core conforming to IS 7098 lead in duct/trenches complete all as specified and directed

Taking down the unserviceable LT cable of any size from trenches/ walls /floor etc Supply & laying of LT XLPE Insulated screened aluminium stranded conductor cable PVC bedded galvanized strip armoured heavy duty 1100 volts cross sectional area 70 Sqmm 3.5 Core conforming to IS 7098 lead in duct/trenches complete all as specified and directed

Taking down the unserviceable HT cable of any size from trenches/ walls /floor etc Supply & laying of HT XLPE Insulated screened aluminium stranded conductor cable PVC bedded galvanized strip armoured heavy duty 11 KV cross sectional area 120 Sqmm 3 Core conforming to IS 7098 lead in duct/trenches complete all as specified and directed

Supply and fix heat shrinkable straight through cable jointing kit for 11 KV grade cable joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sq mm complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV grade cable for indoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sq mm complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV grade cable for outdoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sq mm complete all as specified and directed.

Taking down the unserviceable Lightning arresters and Supply and fix 11000 volt Lightning arresters expulsion type complete with all fittings, transmission class, dies-charge capacity 65 kilo amp complete all as specified and directed.

Dismantling and Taking out old unserviceable CT 11 KV and Supply and Fixing new Current Transformer 11 KV, 200-150/5-5 Amp, class 1.0 accuracy, protection 5P10 including cleaning of bus bar, nuts, bolts and washers etc, connecting and testing complete all as specified and directed.

Supply and fix 2 core 2.5 sqmm PVC insulated PVC sheathed weather proof multistranded copper conductor cable 1100 volts grade drawn through in GI conduit, pole etc with MS clamps from junction box to street light fitting complete all as specified and directed.

Supply and fix 2 core 1.5 sqmm PVC insulated PVC sheathed weather proof multistranded copper conductor cable 1100 volts grade drawn through in GI conduit, pole etc with MS clamps from junction box to street light fitting complete all as specified and directed.

Supply & fix aluminium lugs for 10 sqmm to 16 sqmm 4 core cable complete all as specefied and as directed

Supply & fix aluminium lugs for 25 sqmm to 35 sqmm 4 core cable complete all as specefied and as directed

Supply & fix aluminium lugs for 50 sqmm to 70 sqmm 3.5 core cable complete all as specefied and as directed

Supply & fix aluminium lugs for 95 sqmm to 120 sqmm 3.5 core cable complete all as specefied and as directed

Supply & fix aluminium lugs for 240 sqmm to 300 sqmm 3.5 core cable complete all as specefied and as directed

M & L for cross arms, bracings, supports, clamp and back plate 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 coat and one finishing of coat of paint including dismantling complete all as specified and directed.

Disconnecting and dismantling & complete overhauling of 11/0.433 KV Transformer capacity up to 500 KVA, after disconnecting of electric supply and earth connections including transportation to work shop, drained out transformer oil, lifting/removing of top cover of transformer & cores with chain pully blocks/crane, cleaning of sludge and washed down with the help of spray of clean oil and re-assembling of transformer with S&F of new gasket set assembly, replacement of nuts, bolts and washers as required, re filling of Transformer oil after centrifuging at satifactory dielectric strength complete after electric connections and testing complete all as specified and directed.

Dihydration of new transformer oil having dielectric strength not less than 40 KV complete including filling /top up of oil (if required) up to getting dielectric strength near 60 KV complete all as specified and directed. Note: the new transformer oil will be paid seperatly under relevent items

M&L for Filling/top up of new transformer oil having dielectric strength not less than 60 KV complete including centrifuging of oil (if required) up to getting dielectric strength near 60 KV complete all as specified and directed.

M&L for replacement of HV copper coil and insulation complete all as specified and directed.

M&L for replacement of LV copper coil and insulation complete all as specified and directed.

M&L for reinsulation of existing HV copper coil complete all as specified and directed.

M&L for reinsulation of existing LV copper coil complete all as specified and directed.

M&L for insulation of core,bushing,Tap changer and etc complete all as specified and directed.

M&L for Oven Drying complete all as specified and directed.

Repair/Maintenance and complete servcing of HT AVR 630 KVA including disassembling of operating mechanism parts, /cabling ,well cleaning with petrol CTC 226, cable jointing part ,replacing unserviceable parts and accessories like spring, gasket, coils, nuts, bolts and washers etc, oiling and greasing of moving parts, re-assembling, fine setting of mechanism, well cleaning and de-carbonizing of arc control pot, fixed and moving contact including checking testing, tripping check of HT AVR making perfect operational in manual and electric mode including maintenance and well cleaning the complete, replacing unserviceable parts/Cable and components etc complete all as specified and directed.

EVEREST ENGINEERING WORKS

PSK Enterprises