Repair/ Maintenance of HT line, VCBs, HT Controlling devices with connected items under GE Nagrota

Amount

Filteration, dehydration of transformer oil as drained out from power transformer of Capacity 6.3 MVA 33/ 11 KV to make the oil fit for reuse by improving its dielectric strength not less than 55 KV. Dielectric strength of oil below 45 KV shall be replaced with new oil (new oil for toping/or for replacement shall be measured and paid separately under appropriate item of sch 'A') here-in-after.

Supply, treating (dehydrating), filling new transformer oil in transformers for topping up levels or for replacement of unfit oil. New oil having dielectric strength not less than 45 KV and shall be conforming to IS 335.

Taking out old breathers from transformer, supplying and fixing new breather duly filled with activated agent i.e silica gel for transformer of capacity 6.3 MVA.

Painting to transformers old painted surface of steel after cleaning, scraping and preparing and filling cavities and providing one coat of synthetic enameled grey paint with spray gun process to transformer of capacity 6.3 MVA.

Calibration to indoor Panel of 33/11 KV transformer by checking the connections, relays on control panel and at VCB side complete for proper functioning of the breaker .

Checking of protective devices on control panel such as differential relay, overload and earth fault relays including checking their wiring connections in the control panel for its proper functioning, testing complete all as directed and specified

S& F of 3 phase digital type Volt Meter 0- 12 KV class 0.5 to match the ratio of existing CTs as per make on site complete as specified and directed by Engineer in Charge.

S&F Multifunction Energy Meter with Next Gen Features like Harmonics & Min/Max Monitoring, Digital security consisting of following parameter:- i) Energy Standard - Class 0.2/0.5S/1 as per IEC 62053-22/21 ii). Power Quality analysis with THD & individual harmonics upto 15th over communication iii) 13 Diff wiring configuration scheme iv) Volts, Amps, PF, THD, F, W,Wh, VA,VAh,Var,Varh,Run Hrs, OnHrs, Interupts,Preloaded Demand & Import Export v) Min/Max Monitoring with Date/Time stamping. vi) Calibration LED and Heart beat LED for communication Status vii. Communication : POP or RS485 port complete all as specified and directed by Engr-in-Charge. Make : Conzerv EM6400NG or equivalent from the makes given in particular specifications.

S& F Smart Demand Controller for proper functioning of VCBs , accuracy of CL 0.2 , 0.5S and class 1.0 as per IEC/UL61010 1ED3, Versatile and fully user programmable , suitable for HT/LT with any CT/PT, 2 Digital inputs, 3 Form C Relay outputs for control , TOU for time enable tariff users and auto reseting of energy, import/export option enable monitoring of bi-directional power flow, utility meter cross check, predective demand , present demand, max demand with date/time stamp, 4 peaks and 4 lows complete all as specified and directed of make Conzerv EM7290 or equivalent complete all as specified and directed by Engineer in Charge.

Calibration to HT VCB 11 KV 3 phase 800 amp 250 MVA installed at main power house after disconnecting the main supply incoming panel for repairs and replacement of unserviceable parts and refixing the same after repair and testing on full load (Cost of spare parts and other job works will be paid under respective items) complete all as specified and directed :- Note :(a) Rates are deemed to include the cost of all tools, material and labour required for dismantling taking out and assembling of VCB with replacement of worn out nuts and bolts, gaskets, 'A' grade greasing and oiling of moving parts and refixing the same (b) Rates are deemed to include the cost of material and labour required to make alternative arrangement to bypass the electric supply through the HT panel or other HT line to avoid long period of shut down of electric supply.

Opening the VCB and replacing the single phase burnt motor of VCB with appropriate size of motor complete all as directed.

Repair of motor charging gear complete all as directed.

Repair/replacement of lifting lock in and out complete all as directed.

Replacement of burnt trip coil assembly 24 V DC complete

Replacement of burnt closing coil assembly 24V DC complete

Replacement of burnt wiring including cut out switches complete

Replacement of unserviceable Earth fault overcurrent relay as Per sample and make complete all as per specified and directed by Engineer in charge.

Supply and Fixing of 3 phase digital type Amp meter 0-120 Amp class 0.5 suitable for 33 KV to match the ratio of existing CTs complete all as specified and directed by Engineer in Charge.

Supply and Fixing in replacement of tall tubular battery with better charge acceptance and long back up of high purity, corrossion resistance, puncture resistance, high durability with sealed plastic housing , easy maintenance with level indicators complete all as specified.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth and getting out in any type of soil for erection of HT/LT poles, laying of HT/LT UG cables and provision of stay assembly complete

All as per Srl Item No. 20 here in before but depth beyond first 1.5m and not exceeding 3m

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

Removing excavated material not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point and entire satisfaction of Engnr-in-Charge complete all as specified and directed

Sand (dry clean) as cushioning to underground electric cable all as specified in clause 19.75 of SSR Part -I 2009, and Spreading and levelling in layers for four pole Structure , MES Yard complete all as speficied. Note:- Punned thickness of sand shall be measured.

Brick covering with width equal to length of brick as mechanical protection to cables with well burnt sub class ‘B’ (old size) bricks laid dry flat complete all as directed.

XLPE cable insulated,armoured, heavy duty electric cable with aluminium conductor,11000 volts grade, cross-sectional area 240 Sqmm 3 core complete all as specified and directed . (Note : Excavation, returning and removal shall be measured and paid separately).

All as per Srl item No. 26 here-in-above but cross-sectional area 185 Sqmm 3 Core.

All as per Srl item No. 26 here-in-above but cross-sectional area 95 Sqmm 3 Core.

Supply, fixing and erection truly in vertical position steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55 (11.00m long) including painting with two coats of synthetic enamelled, and making alternate white & black strips each 30cm wide upto 1.5 m above from coping including dismantling of existing Poles/Struts of any type and size and removing the same from site out side of MOD land complete all as specified and directed. Note:-The item are not for reuse and will be credited.

M&L for Cross arms, bracings, supports, clamps and chequered steel back plates, angle iron equal size or any size fabricated from steel section including nuts, bolts, washers, welding bending cold or hot drilling holes for bolts in any shape or size for cover for cable duct any size and holding of two pole strucures, GOD, street light GI bracket, junction boxes and fabrication of anti climbing devices, other works etc as indicated or directed and duly painted with synthetic enamel aluminium/smoke grey paint over a coat of primer fixed "as in repairs" including dismantling cross-arms of M.S. channel or angle sections etc. complete all as specified and directed.

M&L for PCC 1:4:8 type D-2 (using 40mm graded crushed stone aggregates) as in foundation filling and mass concrete in foundation of pole/stays etc complete all as specified

M&L for PCC 1:3:6 type C-2 (using 40mm graded crushed stone aggregates) as in foundation filling and mass concrete in foundation of pole/stays etc complete all as specified

M&L for PCC 1:2:4 type B-1 (using 20mm graded crushed stone aggregates) as in coping/above ground level around the pole etc complete all as specified.

Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia for 11000 volts grade fixed "as in repairs" including dismantling insulators of any type and size complete all as specified. Make- BHEL/Jaipuria Brothers/Seimens or equivalent from the makes given in particular specifications.

Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green 'Two-in-series' assembly for tension with tension clamps for conductors working pressure 11000 volts grade fixed "as in repairs" including dismantling insulators of any type and size complete all as specified. Make- BHEL/Jaipuria Brothers/Seimens or equivalent from the makes given in particular specifications.

All as per Srl item No. 35 here in before but for single disc assembly.

Loop type insulator, vitreous porcelain, white, brown or green large size, with overall dimensions 90x140mm, clearance of hole 25.5mm fixed "as in repairs" including dismantling insulators of any type and size complete all as specified. Make- BHEL/Jaipuria Brothers/Seimens or equivalent from the makes given in particular specifications.

Painting of 11 mtr long steel pole with cross arms, clamp of any length and shape for HT overhead line with two coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 20 cm dia yellow circle & marking three black & two yellow bends width 30 cm by fluorescent paint from bottom of pole to 1.5 Mtr height, complete all as specified and directed.

Aluminium conductor, steel reinforced of any size on HT/LT Poles including straining,binding with insulators with Al/copper binding wire with insulators as in OH conductors, providing PVC Sleeves for jumper fixed "as in repairs" including dismantling of ACSR or AAC conductors of any size complete all as directed.

Switch air break gang operated (Swing out expulsion fuse insulators), triple pole mechnical operated from ground level mounted on insulator and steel frame (15 insulators type) out door type suitable for vertical installation single break provided with locking arrangement consisting of MS channel HT post top insulator with drop out fuses operating rod 20mm dia GI medium grade pipe worked from ground level confirming of IS 1818 of 1972 and contineous current rating upto 200 amp and volt 11 KV complete fixed "as in repairs" including dismantling air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism any type,any size and removing the same from site out side of MOD land complete all as specified and directed. Make: BHEL/PACTIL or equivalent from the makes given in particular specifications.

All as per srl item No 40 above but of current rating 400 amps.

Lightning arrestor non linear resistor type complying with IS 3070 Part -I 1985 for alternating current system multple spark gap suitable for voltage grade 11000 volt having discharge capacity 65 KA complete with all fittings and all as specified.

Earthing complete with galvanised mild steel earth plate electrode 60x60cmx6mmthick buried directly in ground preferably in vertical position (Earth pit not less than 2.25 mtr below ground level) with top edge of the earth plate not less than 1.5 mtr below normal ground level connected to galvanised iron strip of size 25x4mm by means of bolts, nuts, check nuts and washers of galvanised iron including PCC pit 1:2:4 type B-1 pre cast RCC cover slab of size 550x550x75mm with suitable built in handle made from 12mmdia MS round bar, excavation and earth work in any type of soil 20mm dia bore medium grade galvanised iron water tubing fixed with cast iron funnel and wire mesh at one end and 15mm bore light grade galvanised iron protection pipe for earth lead wire upto 5m length, charcol, common salt complete all as shown in electric plate No 3 of SSR 2009 Part I connected to equipment complete all as specified and testing on completion

GI strip of size 25 x 4 mm for earth continuity conductor or main earthing lead fixed to wall buried in ground fixed alongwith poles complete all as specified.

10mm thick Synthetic insulating mat suitable for 11000 volt grade (ISI Marked) of size 2mx1mx10mm complete all as specified and directed.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 to 95 sqmm complete all as specified and directed. Make 3M India Ltd / M seal / Denson or equivalent from the makes given in particular specifications.

All as per Srl item No. 46 here in before but for cable of cross sectional area 120 to 185 sqmm.

All as per Srl item No. 46 here in before but for cable of cross sectional area 240 to 300 sqmm.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 to 95 sqmm complete all as specified and directed. Make 3M India Ltd / M seal / Denson or equivalent from the makes given in particular specifications.

All as per Srl item No. 49 here-in-before but for cable of cross sectional area 120 to 185 sqmm.

All as per Srl item No. 49 here in before but for cable of cross sectional area 240 to 300 sqmm.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 to 95 sqmm.

All as per Srl item No. 52 here in before but for cable of cross sectional area 120 to 185 sqmm.

Labour and tools for trimming tree branches up to 100 mm grith of any location around existing HT/LT OH lins giving clearance of 1.5 m on all sides after arranging shut down and taking all precaution while working on lines including all T&P required for the purpose complete all as specified and directed by Engineer-in- charge. (Note - Trimming of tree branches irrespective in numbers in each tree shall be measured as one unit)

Material and labour for spreading and leveling evenly (any thickness) 20 mm graded stone aggregated complete all as specified and directed.

Material and labour for spreading and leveling evenly (any thickness) 40 mm graded stone aggregated complete all as specified and directed.

Note:- Schedule of credit Rs. 1,03,360.00 will be deducted from total amount quoted while accepting the bid. Details of schedule of credit is given in tender documents.

ASHOKA ENGINEERS AND BUILDERS

ASIA ENTERPRISES