MISCELLANEOUS REPAIRS AND REPLACEMENT OF HT VCB INDOOR AND OUTDOOR, TRANSFORMER AND ALLIED WORKS UNDER GE SAUGOR

Amount

Disconnecting existing incoming & outgoing connections and inspection, servicing, testing, checking and calibration healthiness of entire HT 36 kV, 1600 Amps, 25 kA VCB outdoor type including cleaning, greasing of all mechanical parts of VCB and checking smooth operation manually and motorised with remote panel of VCB for tripping and closing, checking of CTs, PTs, all internal wiring as per site requirement, calibration of VCB and components and to maintain desired insulation level of each phase for smooth operation and test reports of all panels complete all as specified and as directed including the followings: - (a) Cleaning of Vacuum Circuit Breaker with CRC-226. (b) To check the condition of SIC contacts. (c) Checking condition and alignment of jaw contact. (d) Checking and proper tightening of hardware. (e) Checking of proper closing/ open of all poles. (f) Checking of breaker tripping through push button. (g) Checking and adjusting gap between hylem sheet and side plate. (h) Checking motor operation in case of EDO. (i) Checking auxiliary contacts continuity proper change over. (j) Checking of presence if circlips. (k) Checking IR between phase to phase (VCB closed condition). (l) Checking IR between phase to earth (VCB closed condition). (m) Checking IR between phase to earth (VCB open condition). (n) Cleaning and providing lubricants on movable mechanical parts. (o) Testing of relays through secondary injections. (p) Tripping of VCB through Buchholz relay/ OTI/WTI if required. (q) Testing of CTs and PT.(s) Testing of contact resistance of VCBs Note: - (i) Spare parts excluding wiring shall be measured & paid separately (ii) Servicing shall be carried out by authorised rep of VCB manufacturer.

Supply only vacuum interrupter 36 kV, 1600 A, 25 kA with operating link within porcelain housing and top and bottom terminal pads suitable for the existing VCB complete all as specified and as directed.

Supply only tripping and closing coil for 36 kV VCB outdoor type as per existing complete all as specified and as directed.

Supply only limit switch for VCB as per existing complete all as specified and as directed.

Supply only current transformer 50-30/5 Amps 36 kV outdoor type as per the existing complete all as specified and as directed.

Inspection, servicing, testing, checking and calibration of remote panel for HT 36 kV VCB, outdoor type including cleaning, checking internal wiring, tripping operation of earth fault and over current relays, transformer protection relays complete for smooth operation of panel by injecting artificial HT supply for checking tripping on earth fault and over current complete all as specified and as directed.

Inspection, servicing, testing, checking and calibration of 11 kV VCB (SF6 breaker) panel consisting of two incoming and three outgoing including bus-coupler (total VCB 06 Nos) for servicing, cleaning, tightening of loose mechanical mechanism, greasing inspection of busbar, CTs/PTs, internal wiring of control panel, indicators, measuring of IR value, calibration of IDMT relays, replacement of unserviceable spare parts, testing of tripping system, to maintain desired insulation level of each panel and removing all type of dust and settled dirt by mechanical means including testing complete all as specified and as directed by Engineer-in-Charge including the followings: - (a) Cleaning of Vacuum Circuit Breaker with CRC-226. (b) To check the condition of SIC contacts. (c) Checking condition and alignment of jaw contact. (d) Checking and proper tightening of hardware. (e) Checking of proper closing/ open of all poles. (f) Checking of breaker tripping through push button. (g) Checking and adjusting gap between hylem sheet and side plate. (h) Checking motor operation in case of EDO. (i) Checking auxiliary contacts continuity proper change over. (j) Checking of presence if circlips. (k) Checking IR between phase to phase (VCB closed condition). (l) Checking IR between phase to earth (VCB closed condition). (m) Checking IR between phase to earth (VCB open condition). (n) Cleaning and providing lubricants on movable mechanical parts. (o) Testing of relays through secondary injections. (p) Tripping of VCB through Buchholz relay/ OTI/WTI if required. (q) Testing of CTs and PT.(s) Testing of contact resistance of VCBs Note: - (i) Spare parts excluding wiring shall be measured & paid separately (ii) Servicing shall be carried out by authorised rep of VCB manufacturer.

Supply only motor charging mechanism by opening of HT 11 kV SF-6 circuit breaker trolly by authorised Engineer complete all as specified and as directed.

Supply only tripping & closing coil suitable for HT 11 kV VCB as per existing complete all as specified and as directed.

Supply only master trip relay for earth fault & over current suitable for HT 11 KV VCB panel complete all as specified and as directed.

Supply only three phase overcurrent & earth fault relay for HT 11 kV VCB panel complete all as specified and as directed.

Supply only neon indicator LED lamp for indicating RYB in HT 11 kV VCB panel complete all as specified and as directed.

Supply only digital ammeter meter 0-100 Amps on HT 11 kV VCB panel suitable for existing CT ratio complete all as specified and as directed.

Supply only trip, close and neutral rotary switch complete all as specified and as directed.

Supply only current transformer 150/5+5 Amps 11 kV indoor type fixed inside the HT panel as per existing complete all as specified and as directed.

Inspection, servicing, testing, checking and calibration of 11 KV VCB panel consisting of one incoming and one outgoing (total VCB 02 Nos) for servicing, cleaning, tightening of loose mechanical mechanism, greasing inspection of busbar, CTs/PTs, internal wiring of control panel, indicators, measuring of IR value, calibration of relays, replacement of unserviceable spare parts, testing of tripping system, to maintain desired insulation level of each panel and removing all type of dust and settled dirt by mechanical means including testing complete all as specified and as directed by Engineer-in-Charge including the followings: -. (a) Cleaning of Vacuum Circuit Breaker with CRC-226. (b) To check the condition of SIC contacts. (c) Checking condition and alignment of jaw contact. (d) Checking and proper tightening of hardware. (e) Checking of proper closing/ open of all poles. (f) Checking of breaker tripping through push button. (g) Checking and adjusting gap between hylem sheet and side plate. (h) Checking motor operation in case of EDO. (i) Checking auxiliary contacts continuity proper change over. (j) Checking of presence if circlips. (k) Checking IR between phase to phase (VCB closed condition). (l) Checking IR between phase to earth (VCB closed condition). (m) Checking IR between phase to earth (VCB open condition). (n) Cleaning and providing lubricants on movable mechanical parts. (o) Testing of relays through secondary injections. (p) Tripping of VCB through Buchholz relay/ OTI/WTI if required. (q) Testing of CTs and PT.(s) Testing of contact resistance of VCBs Note: - (i) Spare parts excluding wiring shall be measured & paid separately (ii) Servicing shall be carried out by authorised rep of VCB manufacturer.

Supply only control unit trolly of HT 11 kV VCB complete all as specified and as directed.

Supply only current transformer 150-75/5 Amps 11 kV indoor type fixed inside the HT panel as per existing complete all as specified and as directed.

Supply only HRC fuse 6 to 10 Amps suitable for VCB panel as per existing complete all as specified and as directed.

Inspection, servicing, testing, checking and calibration of 11 KV VCB panel consisting of one incoming and four outgoing (total VCB 05 Nos) for servicing, cleaning, tightening of loose mechanical mechanism, greasing inspection of busbar, CTs/PTs, internal wiring of control panel, indicators, measuring of IR value, calibration of relays, replacement of unserviceable spare parts, testing of tripping system, to maintain desired insulation level of each panel and removing all type of dust and settled dirt by mechanical means including testing complete all as specified and as directed by Engineer-in-Charge including the followings: - (a) Cleaning of Vacuum Circuit Breaker with CRC-226. (b) To check the condition of SIC contacts. (c) Checking condition and alignment of jaw contact. (d) Checking and proper tightening of hardware. (e) Checking of proper closing/ open of all poles. (f) Checking of breaker tripping through push button. (g) Checking and adjusting gap between hylem sheet and side plate. (h) Checking motor operation in case of EDO. (i) Checking auxiliary contacts continuity proper change over. (j) Checking of presence if circlips. (k) Checking IR between phase to phase (VCB closed condition). (l) Checking IR between phase to earth (VCB closed condition). (m) Checking IR between phase to earth (VCB open condition). (n) Cleaning and providing lubricants on movable mechanical parts. (o) Testing of relays through secondary injections. (p) Tripping of VCB through Buchholz relay/ OTI/WTI if required. (q) Testing of CTs and PT.(s) Testing of contact resistance of VCBs Note: - (i) Spare parts excluding wiring shall be measured & paid separately (ii) Servicing shall be carried out by authorised rep of VCB manufacturer.

Supply only vacuum interrupter suitable for 11 kV VCB as per existing complete all as specified and as directed.

Supply only rear spouts suitable for 11 kV VCB as per existing complete all as specified and as directed.

Supply only drive insulator suitable for 11 kV VCB as per existing complete all as specified and as directed.

Supply only busbar support spouts suitable for 11 KV VCB as per existing complete all as specified and as directed.

Supply only busbar sleeve 11 kV as per existing complete all as specified and as directed.

Supply only busbar support insulators suitable for 11 kV VCB as per existing complete all as specified and as directed.

Supply only Current transformer for 11 kV VCB of current ratio 100/50-5+5A complete all as specified and as directed.

Supply only Potential transformer (PT) for 11 KV existing VCB compete all as specified and directed.

Supply only auxiliary switch suitable for VCB as per existing complete all as specified and as directed.

Supply only pressure sensitive adhesive plasticized PVC tapes with non-thermosetting adhesive, designation F-PVC/90/0/Tp, general purpose application for electrical insulation, plasticized polyvinylchloride backing material, thickness 0.125 mm, width 25 mm, length 20 metre all as per o IS 7809 (Part 3/section 1): 1986

S & F aluminium conductors, galvanized steel reinforced ACSR) and all aluminium alloy stranded (AAA) covered conductor, 100 sqmm nominal size, extruded longitudinally watertight made of material be stable at maximum operating conductor temperature of 90⁰C, extruded semiconductive layer of nominal thickness 0.3 mm, inner insulation layer of XLPE without carbon black of nominal thickness 1.2 mm, outer insulation with UV and track resistant XLPE of nominal thickness 1.1 mm, tested as per EN 50397-1 : 2006 complete all as specified and as directed.

S & F battery TM 250 P-MARK-1 of capacity 2 volts 250 AH at 10 hrs rate suitable for VCB DC supply as per existing including distilled water compete all as specified and directed by Engr-in-charge Make: Exide

Material and Labour for the following testing of transformer of any capacity on the site at different locations under the GE and submission of reports to the Engineer-in-Charge complete all as specified and as directed. (a) Operational checking of the protection system (b) Insulation resistance (IR) measurement (c) Measurement of capacitor bushings (d) Measurement of voltage ratio (turns ratio) (e) Measurement of vector group or polarity of the transformer (f) Measuring of winding resistance (g) Measurement of vibration of the transformer (h) Test of the magnetic balance of the transformer (i) A measure of Frequency Balance Response (FRA) of the transformer (j) Measurement of floating neutral point (k) The measure of short-circuit impedance and magnetizing current of the transformer (l) Operational measurement on OLTC’S (m) Measurement of stability of differential, REF of transformer (n) Measurement of bushing current transformers (BCT’S)

M & L for spray painting of transformers (any type power or distribution)) of capacity upto and including 250 kVA ( in situ ) outdoor type, installed and located at different sites in scattered area under the GE including the following: - (a) preparation of old surfaces by cleaning, scrapping, rubbing/ polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make / quality all as directed at site. (c) Writing the SM MES No of transformer on MS body of transformer all as directed .

M & L for spray painting of transformers (any type power or distribution)) of capacity above 300 kVA and upto and including 500 kVA ( in situ ) outdoor type, installed and located at different sites in scattered area under the GE including the following: - (a) preparation of old surfaces by cleaning, scrapping, rubbing/ polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make / quality all as directed at site. (c) Writing the SM MES No of transformer on MS body of transformer all as directed.

M & L for spray painting of transformers (any type power or distribution)) of capacity above 500 kVA and upto and including 2000 kVA ( in situ ) outdoor type, installed and located at different sites in scattered area under the GE including the following: - (a) preparation of old surfaces by cleaning, scrapping, rubbing/ polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make / quality all as directed at site. (c) Writing the SM MES No of transformer on MS body of transformer all as directed .

Disconnecting, taking down power transformer outdoor type 33 kV /11 kV having capacity 1000 kVA to 2000 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule and paid separately. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket etc. shall be measured and paid for separately (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity upto and including 75 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket etc., gasket etc. shall be measured and paid for separately (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 100 kVA, 150 kVA, 200 kVA, 250kVA and 315 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket etc. shall be measured and paid for separately (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 400 kVA, 500 kVA and 630 kVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer, gasket etc. shall be measured and paid for separately (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded.

M & L for rewinding of coils on primary side of transformer of any capacity using proper size, double paper covering, ordinary copper winding wires conforming to IS 7404 (Part-1): 1991 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for rewinding of coils on secondary side of transformer of any capacity using proper size, double paper covering, ordinary copper winding wires conforming to IS 7404 (Part-1): 1991 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for rewinding of coils on primary side of transformer of any capacity using proper size, double paper covered aluminium winding wires conforming to IS 6162 (Part-II): 1971 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for rewinding of coils on secondary side of transformer of any capacity using proper size, double paper covered aluminium winding wires conforming to IS 6162 (Part-II): 1971 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 33 kV/ 11 kV transformer complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.)

M & L for replacement of top cover gasket made out of leatherised celbatec sheet 4 mm thick including leak proofing by shellac solution and dovetail jointing on the end side of any capacity upto any height including opening of mounting and nut bolt and taking down from plinth and pole , of any height as per site requirements complete all as specified and as directed.

S & F for replacement of temperature gauge 0 - 100⁰C suitable for existing fitment of transformer 33 kV or 11 kV /0.433 KV complete all as specified and as directed.

S & F in repairs 12 kV or 17.5 kV/ 250 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 3 (section 1 & 2) complete all as specified and as directed.

S & F in repairs upto and including 1.1 kV/ 1000 A bushing with copper stem including both porcelain parts and metal parts with accessories as per IS 3347 Part 1 (section 1 & 2) complete all as specified and as directed.

S & F in repairs silica gel breather including silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour for transformer of capacity upto and including 500 kVA complete all as specified and as directed.

S & F oil level gauge complete suitable for distribution transformer of any capacity

Dehydration and filtration of existing transformer oil of transformer at different location with filtration machine and heating system to get the minimum di-electric strength of oil 40 kV minimum without disturbing the power supply system and refilling/ topping up /replacement of unserviceable transformer oil complete all as specified and as directed.( Note: Transformer oil required extra for filling/topping up shall be measured and paid separately under the relevant items of this schedule).

Supply, filling and topping up new transformer oil of dielectric strength not be less than 60 kV and conforming to IS 335: 1993 complete all as specified and as directed.

S & F XLPE cable end termination, heat shrinkable, outdoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core, 50 sqmm to 95 sqmm complete all as specified and as directed.

S & F XLPE cable end termination, heat shrinkable, outdoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core, 120 sqmm to 185 sqmm complete all as specified and as directed.

S & F XLPE cable end termination, heat shrinkable, indoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core, 120 sqmm to 185 sqmm complete all as specified and as directed.

S & F 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 sqmm to 95 sqmm complete all as specified and as directed.

S & F 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 120 sqmm to 185 sqmm complete all as specified and as directed.

Dismantling air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism for repair/ replacement of broken/worn out components and insulators etc. or carrying to MES store (spare/components for replacement to be provided free by department)

S & F gang operated air break switch, three poles, outdoor type, nominal system voltage 33 kV, rated voltage 36 kV, rated normal current 200 Amps, rated frequency 50 Hz, rated one minute power frequency withstand voltage between (i) earth & poles 70 kV (rms) (ii) across the isolating distance 80 kV (rms), rated lightning impulse withstand voltage (i) to earth and between poles 170 kV (Peak) (ii) across the isolating distance 195 kV (Peak), Rated short-time withstand current 20 kA for 3 seconds, rated peak withstand current 50 kA for climatic conditions at the site, mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level for current complete all as specified and as directed.

S & F gang operated air break switch, three poles, outdoor type, nominal system voltage 11 kV, rated voltage 12 kV, rated normal current 200 Amps, rated frequency 50 Hz, rated one minute power frequency withstand voltage between (i) earth & poles 28 kV (rms) (ii) across the isolating distance 32 kV (rms), rated lightning impulse withstand voltage (i) to earth and between poles 75 kV (Peak) (ii) across the isolating distance 85 kV (Peak), Rated short-time withstand current 25 kA for 3 seconds, rated peak withstand current 63 kA for climatic conditions at the site, mechanically operated mounted on insulator and steel frame with operating mechanism worked from ground level for current complete all as specified and as directed.

S & F drop out fuse unit expulsion type for outdoor air brake gang operated switches single pole mounted and including insulator for 11 kV working pressure fixed to and including MS channel with nuts, bolts, washers etc. synthetic bounded fuse carrying tube complete with line taps and suitable for current carryout capacity 15 Amps.

Supply and erection three piece metal oxide lightning arrestor suitable for 33 Kv continuous operating voltage (3 phase) with rated voltage 36 Kv (rms) with nominal discharge current rating of 2.5 Ka and complete with galvanised clamping arrangements, GI bolts, nuts, washers etc. complete as specified and as directed.

Supply and erection of three piece metal oxide lightning arrestor suitable for 11 kV continuous operating voltage (3 phase) with rated voltage 12 kV (rms) with nominal discharge current rating of 2.5 kA and complete with galvanised clamping arrangements, GI bolts, nuts, washers etc. complete as specified and as directed.

Dismantling insulators any type, any size complete all as specified and as directed.

S & F porcelain pin insulator, Type B, Nominal System voltage 11 kV, highest system voltage 12 kV, visible discharge test voltage 9 kV, wet power frequency withstand voltage 35 kV, power frequency puncture withheld voltage 105 kV, impulse withstand voltage 75 kV, minimum total creepage distance 230 mm, minimum failing load 5 kN, of suitable size with galvanised steel insulator pin, nut, washers complete all as specified and as directed.

S & F porcelain line post insulator, Type B, Nominal System voltage 11 kV, highest system voltage 12 kV, visible discharge test voltage 9 kV, wet power frequency withstand voltage 35 kV, power frequency puncture withheld voltage 105 kV, impulse withstand voltage 75 kV, minimum total creepage distance 230 mm, minimum failing load 5 kN, of suitable size with galvanised steel stud pin, nut, washers complete all as specified and as directed.

S & F porcelain disc insulator, ball and socket type, Type B, Nominal System voltage 11 kV, highest system voltage 12 kV, visible discharge test voltage 9 kV, wet power frequency withstand voltage 35 kV, impulse withstand voltage 75 kV, minimum total creepage distance 230 mm, minimum failing load 70 kN, of suitable size with galvanised steel stud pin, nut, washers complete all as specified and as directed.

M & L for cross arms, bracings, supports, clamps, back plates and stay clamp 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 applying two coats of aluminium paint over a coat of red oxide primer complete all as specified and as directed.

Dismantling ACSR or AAC conductors removing to store or taken on schedule of credit complete all as specified and as directed.

Supply, fixing and stringing ACSR (aluminium conductor galvanized steel-reinforced) of any size and type in accordance with site requirement and binding on insulator by means of 22 gauge aluminium binding wire to permissible sag complete all as specified and as directed.

S & F galvanised mild steel wire 3.15 mm or 4 mm dia in overhead lines complete all as specified and as directed.

Dismantling stay assembly complete (Note: Demolition of concrete, etc. and excavation measured shall be measured and paid separately separately.)

M & L for stay assembly of stay rod of diameter 16 mm complete with accessories as shown in electrical plate No. 1 complete all as specified and as directed .(Note: Loop type insulator, stay clamps, excavation and concrete shall be measured and paid separately.)

M & L for hot dip galvanized stay strands of grade I, 7 Nos wires construction, wire diameter 4 mm, nominal strand diameter 12 mm, heavy zinc coating complete all as specified and as directed.

Disconnecting, taking out old unserviceable under ground cable of rated voltage 6.35 kV/ 11 kV, upto any size of nominal cross sectional area of main conductor, upto 4 core, any type from trenches including taking out concrete cable cover/ bricks etc. including removing materials to store for keeping in safe custody or for reuse or for taking credit all as specified and directed by the Engineer-in-Charge.

Supply, laying and testing cross linked polyethylene (XLPE) insulated, PVC sheathed cables for working voltages 6.35 kV/ 11 kV, three phase, earthed system, 3 core, screened, armoured power cable, 95 sqmm of nominal area of conductor, aluminium conductor, ISI marked as per IS 7098 (Part-II): 2011 laid in trenches or under floors making all connections with necessary glands lugs bushing complete all as specified and as directed.

Supply, laying and testing cross linked polyethylene (XLPE) insulated, PVC sheathed cables for working voltages 6.35 kV/ 11 kV, three phase, earthed system, 3 core, screened, armoured power cable, 120 sqmm of nominal area of conductor, aluminium conductor, ISI marked as per IS 7098 (Part-II): 2011 laid in trenches or under floors making all connections with necessary glands lugs bushing complete all as specified and as directed.

Dismantling concrete poles/ struts, any size, setting aside for reuse within 50 metres

M & L for prestressed concrete pole, 11.0 metres long, 152 mm X 152 mm at top and 152 mm X 260 mm at bottom designed for wind load at the site including preparing and painting on prestressed concrete pole with two coats of cement base paint on exposed portion and including making strips of width 30 cm upto 1.5 m from the ground level in black and white shade in alternate layer including numbering of poles using two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer complete all as specified and as directed.

M & L for cement concrete in foundation, filling and mass concrete in M7.5(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

M & L for cement concrete in foundation, filling and mass concrete in M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

M & L for cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate in roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and as directed.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in hard/ dense soil complete all as specified and as directed.

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Supply & spreading in trenches dry river sand cushioning to underground cable in trenches including spreading, levelling hand punning down complete all as specified and as directed Note:- Depth of sand cushioning will be measured after punning down and levelling the sand properly.

Supply & laying unreinforced precast concrete cable cover class HV type 2, flat shape, dimension 450 mm X 180 mm X 40 mm as per IS 5820: 1970 complete all as specified and as directed.

Supplying & laying in trenches, in road cutting and along pole 125 mm nominal bore, light grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 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 earthing lead of 32 mm X 6 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c both ways with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge.

S & F earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 25 mm X 4 mm galvanised mild steel strip complete all as specified and as directed.

Cutting /trimming of tree branches upto 80 mm thickness along LT/HT overhead electric lines which are growing /touching or falling on ACSR conductor / poles or nearby substations etc. at any height from ground level and making sufficient clearance about 1.5 m from ACSR CONDUCTOR/POLES/STRUCTURE and taking down the same on the ground carefully avoiding the damage and removing to a distance as directed by the Engineer-in-charge.

Material and labour reinsulating the LV winding of copper with DPC insulation and as per manufacturers specifications and standard practice and all as directed.

Material and labour reinsulating the LV winding of aluminium with DPC insulation and as per manufacturers specifications and standard practice and all as directed.

M& L for servicing of 11 kV gang operated air break switch, any type (horizontal or vertical) by cleaning the contact, greasing, applying petroleum jelly at the contact point, checking serviceability and including replacement of heavy duty brass jaw and blade set, copper strip set, lugs, nuts, bolts, washers, aluminium thimbles, jumpers, all as per the existing complete all as specified and as directed. Note: - (1) The cost for replacement of brass jaw, blade set, copper strip set, lugs, nuts, bolts, washers, aluminium thimbles, jumpers, lubricating materials, etc. shall be deemed to be included in the unit rate quoted by the contractor for the item.

M& L for servicing of 33 kV gang operated air break switch, any type (horizontal or vertical) by cleaning the contact, greasing, applying petroleum jelly at the contact point, checking serviceability and including replacement of heavy duty brass jaw and blade set, copper strip set, lugs, nuts, bolts, washers, aluminium thimbles, jumpers, all as per the existing complete all as specified and as directed. Note: - (1) The cost for replacement of brass jaw, blade set, copper strip set, lugs, nuts, bolts, washers, aluminium thimbles, jumpers, lubricating materials, etc. shall be deemed to be included in the unit rate quoted by the contractor for the item.

SHIVALIK ENGINEERING WORKS

virendera singh