Military Engineer Services-MES has published Tender For Miscellaneous Repair And Replacement Of Ht Vcb Indoor And Outdoor, Transformer And Allied Works Under Ge Saugor. Submission Date for this Tender is 02-04-2024. Building Work Tenders in saugor Madhya Pradesh. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 11-Mar-2024 | RevisedBOQ | BOQ | 21-03-2024 |
| 2 | 11-Mar-2024 | Amendment | Other | 21-03-2024 |
| 3 | 11-Mar-2024 | Date Amendment | Date | 21-03-2024 |
| 4 | 21-Mar-2024 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 28-03-2024 |
| 5 | 28-Mar-2024 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 02-04-2024 |
| Sl. No. | Item Description |
| 1 | Disconnecting existing incoming & outgoing connections and inspection, servicing, testing, checking and calibration healthiness of entire HT 36 kV, upto 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. |
| 2 | M & L for repairs to motor charging mechanism by opening of 36 kV, upto 1600A, 25 kA circuit breaker by authorised Engineer complete all as specified and as directed. |
| 3 | Supply only tripping and closing coil for 36 kV VCB outdoor type as per existing complete all as specified and as directed. |
| 4 | Supply only limit switch for VCB as per existing complete all as specified and as directed. |
| 5 | 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. |
| 6 | 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 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. |
| 7 | M & L for repairs to motor charging mechanism by opening of HT 11 kV SF-6 circuit breaker trolly by authorised Engineer complete all as specified and as directed. |
| 8 | M & L for repairs to trip and closing spring mechanism by opening of HT 11 kV SF-6 circuit breaker trolly by authorised Engineer complete all as specified and as directed. |
| 9 | Supply only tripping & closing coil suitable for HT 11 kV VCB as per existing complete all as specified and as directed. |
| 10 | Supply only master trip relay for earth fault & over current suitable for HT 11 KV VCB panel complete all as specified and as directed. |
| 11 | Supply only three phase overcurrent & earth fault relay for HT 11 kV VCB panel complete all as specified and as directed. |
| 12 | Supply only neon indicator LED lamp for indicating RYB in HT 11 kV VCB panel complete all as specified and as directed. |
| 13 | Supply only digital ampere meter 0-100 Amps on HT 11 kV VCB panel suitable for existing CT ratio complete all as specified and as directed. |
| 14 | Supply only trip, close and neutral rotary switch complete all as specified and as directed. |
| 15 | 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. |
| 16 | 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. |
| 17 | M & L for repairs to control unit trolly of HT 11 kV VCB by cleaning of all contact parts connecting and testing complete system with the control wiring for healthiness of all internal wiring complete by authorised Engineer complete all as specified and as directed. |
| 18 | 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. |
| 19 | Supply only HRC fuse 6 to 10 Amps suitable for VCB panel as per existing complete all as specified and as directed. |
| 20 | 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. |
| 21 | Supply only vacuum interrupter suitable for 11 kV VCB as per existing complete all as specified and as directed. |
| 22 | Supply only rear spouts suitable for 11 kV VCB as per existing complete all as specified and as directed. |
| 23 | Supply only drive insulator suitable for 11 kV VCB as per existing complete all as specified and as directed. |
| 24 | Supply only busbar support spouts suitable for 11 KV VCB as per existing complete all as specified and as directed. |
| 25 | Supply only busbar sleeve 11 kV as per existing complete all as specified and as directed. |
| 26 | Supply only busbar support insulators suitable for 11 kV VCB as per existing complete all as specified and as directed. |
| 27 | Supply only Current transformer for 11 kV VCB of current ratio 100/50-5+5A complete all as specified and as directed. |
| 28 | Supply only Potential transformer (PT) for 11 KV existing VCB compete all as specified and directed. |
| 29 | Supply only auxiliary switch suitable for VCB as per existing complete all as specified and as directed. |
| 30 | 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 |
| 31 | S & F aluminium conductors, galvanized steel reinforced ACSR) and all aluminium alloy stranded (AAA) covered conductor, 12 kV nominal system voltage, 34 sqmm nominal size, extruded longitudinally watertight made of material be stable at maximum operating conductor temperature of 90°C, 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 including all accessories complete all as specified and as directed. |
| 32 | S & F in repairs battery of capacity 2 volts 100 AH maintenance free suitable for VCB DC supply connected to existing HT panel compete all as specified and as directed. |
| 33 | Material and Labour for the following testing of transformer of any capacity and any voltage level 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) (o) Measurement of copper losses |
| 34 | 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 . |
| 35 | 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. |
| 36 | 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 . |
| 37 | 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 testing as specified 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. |
| 38 | Supplying, fixing and testing current transformer ring type HT cast resin wound type CT Ratio 40-25A/5+5A, dual core class 1.0, burden 15 VA for HT 11 kV VCB complete all as specified and as directed. |
| 39 | Supplying, fixing and testing potential transformer resin cast, draw out type from bus PT truck with the following specifications (i) System voltage- 11 kV, 3 phase, 3 line (ii) ILV- 12 kV, 50 Hz (iii) Ratio - 11 kV/ 110 V, star/ star (iv) burden - 100 VA (v) voltage factor - 1.2 continuous, 1.5/ 30 sec as per IS for HT 11 kV VCB complete all as specified and as directed. |
| 40 | M & L for rewinding of coils on primary/ secondary side of transformer of any capacity using proper size, muitiple(triple) paper covering, special (S) 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 any voltage level of transformer on primary and secondary side complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.) |
| 41 | Material and labour reinsulating the LV winding of copper with DPC insulation and as per manufacturers specifications and standard practice and all as directed. |
| 42 | M & L for rewinding of coils on primary/ secondary side of transformer of any capacity using proper size, muitiple(triple) paper covering, special (S) 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 any voltage level of transformer on primary and secondary side complete all as specified and as directed. (Note: - Weight of only winding wire shall measured for payment purpose.) |
| 43 | Material and labour reinsulating the LV winding of aluminium with DPC insulation and as per manufacturers specifications and standard practice and all as directed. |
| 44 | 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. |
| 45 | S & F for replacement of temperature gauge 0 - 100°C suitable for existing fitment of transformer 33 kV or 11 kV /0.433 KV complete all as specified and as directed. |
| 46 | 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. |
| 47 | 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. |
| 48 | Supplying and fixing in replacement of VCB 11kV three contacts with SF6 gas in existing VCB at MRS complete all as specified and as directed |
| 49 | S & F silica gel breather containing 500 gms silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour silica, breather body made out of aluminium pressure die cast, shot blasted and powder coated, container and oil cup made out of 143R grade UV resistant polycarbonate, all gaskets made out of nitrile cork (RC 70C) rubber, flanged type. breather piping doesn’t include any valve between conservator and breather, removable type mounted at suitable height from ground level, tested for 0.35 kg / cm for all joints complete all as specified and as directed. |
| 50 | S & F silica gel breather containing 1000 gms silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour silica, breather body made out of aluminium pressure die cast, shot blasted and powder coated, container and oil cup made out of 143R grade UV resistant polycarbonate, all gaskets made out of nitrile cork (RC 70C) rubber, flanged type. breather piping doesn’t include any valve between conservator and breather, removable type mounted at suitable height from ground level, tested for 0.35 kg / cm for all joints complete all as specified and as directed. |
| 51 | M & L for replacement of silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour for transformer of any capacity. |
| 52 | S & F oil level gauge complete suitable for distribution transformer of any capacity |
| 53 | Carrying out field test of transformer oil for visual inspection (colour and appearance), break down voltage, water content and acidity before and submission of report all as per IS 1866: 2017 and IEC 60422: 2013 complete all as specified and as directed. |
| 54 | Filtration, Dehydration, reconditioning of transformer oil by using filtering equipment, vacuum dehydrator etc. to obtain minimum break down voltage of 60 kV and maximum water content of 30 mg/kg as per IS 1866: 2017 and IEC 60422: 2013 complete all as specified and as directed. |
| 55 | Supply and fill unused mineral insulating oils conforming to IS 335: 2018, Type II Class (Transformer oils), Uninhibited (U), pour point -10°C, vacuum filtered in a laboratory, Breakdown voltage of min 70 kV at 2.5 mm gap complete all as specified and as directed. |
| 56 | Dismantling and taking down of End termination/ Straight through cable joint of any size, any type, any numbers of core for any voltage complete all as specified and as directed. |
| 57 | 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. |
| 58 | 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. |
| 59 | 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. |
| 60 | 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. |
| 61 | 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. |
| 62 | 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) |
| 63 | S & F gang operated air break switch as per IEC 62271-103 amended upto date, rocking/ tilting type, suitable for both horizontal and vertical mounting, three poles, outdoor type, nominal system voltage 33 kV, rated voltage 36 kV, rated frequency 50 Hz, continuous current rating 200 Amps, rated short time withstand current for one second 25 kA, rated peak withstand current for one second 62.5 kA, rated lightning impulse withstand voltage (i) to earth and between poles 170 kV (Peak) (ii) across the isolating distance 195 kV (Peak), power frequency withstand voltage between (i) earth & poles 70 kV (rms) (ii) across the isolating distance 80 kV (rms), minimum isolating distance in open position 520 mm, phase to phase clearance 1220 mm, minimum cross sectional area of fixed contact 300 sqmm, minimum cross sectional area of moving contact 250 sqmm, copper connector having minimum cross sectional area of 250 sqm, maximum current density of 1.6 Amps/ sqmm for all current carrying parts, single number of brake per phase, medium grade galvanised iron pipe of 32 mm nominal bore and 5 to 6 metre length in single piece for operating pipe, pad-locking in both ‘on’ and ‘off’ position with indicators, electroplated nonferrous parts, hot dip galvanised ferrous parts, 3 Nos polymer post insulator per phase as per IEC 61109 amended upto date having rated voltage 36 kV, minimum creepage distance 900 mm, impulse withstand voltage 170 kV, wet power frequency withstand voltage 75 kV, dry wet power frequency withstand voltage 75 kV complete all as specified and as directed. |
| 64 | S & F drop out fuse unit expulsion type for outdoor air brake gang operated switches single pole mounted and including insulator for 33 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 30 Amps. |
| 65 | S & F gang operated air break switch as per IEC 62271-103 amended upto date, rocking/ tilting type, suitable for both horizontal and vertical mounting, three poles, outdoor type, nominal system voltage 11 kV, rated voltage 12 kV, rated frequency 50 Hz, continuous current rating 200 Amps, rated short time withstand current for one second 25 kA, rated peak withstand current for one second 62.5 kA, rated lightning impulse withstand voltage (i) to earth and between poles 75 kV (Peak) (ii) across the isolating distance 85 kV (Peak), power frequency withstand voltage between (i) earth & poles 28 kV (rms) (ii) across the isolating distance 32 kV (rms), minimum isolating distance in open position 310 mm, phase to phase clearance 750 mm, minimum cross sectional area of fixed contact 300 sqmm, minimum cross sectional area of moving contact 250 sqmm, copper connector having minimum cross sectional area of 250 sqm, maximum current density of 1.6 Amps/ sqmm for all current carrying parts, single number of brake per phase, medium grade galvanised iron pipe of 32 mm nominal bore and 5 to 6 metre length in single piece for operating pipe, pad-locking in both ‘on’ and ‘off’ positions with indicators, electroplated nonferrous parts, hot dip galvanised ferrous parts, 3 Nos polymer post insulator per phase as per IEC 61109 amended upto date having rated voltage 12 kV, minimum creepage distance 300 mm, impulse withstand voltage 75 kV, wet power frequency withstand voltage 35 kV, dry wet power frequency withstand voltage 35 kV complete all as specified and as directed. |
| 66 | 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. |
| 67 | Supply and fix metal oxide surge arrester without gap for AC system as per IEC 60099-4: 2014, outdoor type, polymer housing, single column and single phase construction, station class, heavy duty, nominal discharge current 20 kA, switching impulse discharge current 2 kA, repetitive charge transfer rating (Qrs) more than 2.4 C, thermal energy rating (Wth) more than 10 kJ/kV, nominal system voltage 33 kV, highest system voltage 36 kV, rated voltage of arrester 27 kV, continuous operating voltage 21.6 kV, temporary overvoltage (30.45 kV for 1 s, 28.50 kV for 10 s, 26.35 kV for 100 s), rated short circuit current 20 kA, low short circuit current 600 A, insulation withstand level (lightning impulse voltage 1.2/ 50 µs) 170 kV, lightning impulse residual voltage (8/20 µs) at nominal discharge current maximum 69 kV, switching impulse residual voltage (30/60 µs) at switching impulse discharge current maximum 58 kV, high current impulse withstand capability (4/10 µs) 100 kA, minimum creepage distance 900 mm complete all as specified and as directed. |
| 68 | Supply and fix metal oxide surge arrester without gap for AC system as per IEC 60099-4: 2014, outdoor type, polymer housing, single column and single phase construction, distribution class, heavy duty, nominal discharge current 10 kA, repetitive charge transfer rating (Qrs) more than 0.4 C, thermal charge transfer rating (Qth) more than 1.1 C, nominal system voltage 11 kV, highest system voltage 12 kV, rated voltage of arrester 9 kV, continuous operating voltage 7.2 kV, temporary overvoltage (10.50 kV for 1 s, 9.90 kV for 10 s, 9.35 kV for 100 s), rated short circuit current 20 kA, low short circuit current 600 A, insulation withstand level (lightning impulse voltage 1.2/ 50 µs) 75 kV, lightning impulse residual voltage (8/20 µs) at nominal discharge current maximum 30 kV, high current impulse withstand capability (4/10 µs) 100 kA, minimum creepage distance 300 mm complete all as specified and as directed. |
| 69 | Dismantling insulators any type, any size complete all as specified and as directed. |
| 70 | S & F 11 kV polymeric composite pin insulator, conforming to IEC 61109, material of core (FRP rod): borron free ECR, material of sheds: silicon rubber, material of top end fittings: spheroidal graphite cast iron, malleable cast iron or forged steel, material of bottom end fittings: forged steel, sealing compound for end fitting: RTV Silicon, colour of sheds: grey, rated voltage: 11 kV, highest voltage: 12 kV, dry power frequency withstand voltage: 60 kV, wet power frequency withstand voltage: 35 kV, dry power frequency flashover voltage: 75 kV, wet power frequency flashover voltage: 45 kV, dry lightning impulse withstand voltage: (a) Positive: 75 kV, (b) Negative: 80 kV, dry lightning impulse flashover voltage: (a) Positive: 95 kV, (b) Negative: 100 kV, RIV at 1 MHz when energised at 10 kV / 30 kV (rms) under dry condition < 50 microvolt, creepage distance (minium): 300 mm, minimum failing load: 5 kN complete all as specified and as directed. |
| 71 | S & F 11 kV polymeric composite post insulator, conforming to IEC 62231, material of core (FRP rod): borron free ECR, material of sheds: silicon rubber, material of top and bottom end fittings: spheroidal graphite cast iron, malleable cast iron, sealing compound for end fitting: RTV Silicon, colour of sheds: grey, rated voltage: 11 kV, highest voltage: 12 kV, dry power frequency withstand voltage: 60 kV, wet power frequency withstand voltage: 35 kV, dry power frequency flashover voltage: 75 kV, wet power frequency flashover voltage: 45 kV, dry lightning impulse withstand voltage: (a) Positive: 75 kV, (b) Negative: 80 kV, dry lightning impulse flashover voltage: (a) Positive: 95 kV, (b) Negative: 100 kV, RIV at 1 MHz when energised at 10 kV / 30 kV (rms) under dry condition < 100 microvolt, creepage distance (minimum): 300 mm, cantilever strength upright: 5 kN, cantilever strength under hang: 3 kN, torsional: 200 Nm, tensile strength: 15 kN, compressive strength: 30 kN complete all as specified and as directed. |
| 72 | S & F 11 kV polymeric composite disc insulator, conforming to IEC 61109, material of core (FRP rod): borron free ECR, material of sheds: silicon rubber, material of end fittings: spheroidal graphite cast iron, malleable cast iron or forged steel, sealing compound for end fitting: RTV Silicon, colour of sheds: grey, rated voltage: 11 kV, highest voltage: 12 kV, dry power frequency withstand voltage: 60 kV, wet power frequency withstand voltage: 35 kV, dry power frequency flashover voltage: 75 kV, wet power frequency flashover voltage: 45 kV, dry lightning impulse withstand voltage: (a) Positive: 75 kV, (b) Negative: 80 kV, dry lightning impulse flashover voltage: (a) Positive: 95 kV, (b) Negative: 100 kV, RIV at 1 MHz when energised at 10 kV / 30 kV (rms) under dry condition < 50 microvolt, creepage distance (minium): 300 mm, minimum failing load: 45 kN complete all as specified and as directed. |
| 73 | 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. |
| 74 | 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. |
| 75 | 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. |
| 76 | Dismantling ACSR or AAC conductors removing to store or taken on schedule of credit complete all as specified and as directed. |
| 77 | 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. |
| 78 | S & F galvanised mild steel wire 3.15 mm or 4 mm dia in overhead lines complete all as specified and as directed. |
| 79 | Dismantling stay assembly complete (Note: Demolition of concrete, etc. and excavation measured shall be measured and paid separately separately.) |
| 80 | 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.) |
| 81 | 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. |
| 82 | 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. |
| 83 | 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. |
| 84 | Dismantling concrete poles/ struts, any size, transporting to store and stacking or for schedule of credit |
| 85 | M & L for steel tubular swaged pole 410 SP-55 (11.0 metre long) including CI base plate, finial taper plug, bolts, nuts & screws as per IS 2713 Part -I & II including painting with two coats of aluminium paint over a coat of red oxide zinc chrome primer on exposed portion and 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 and two coats of anticorrosive paint over a coat of red oxide primer to embedded portion of pole including making good to match existing area complete all as specified and as directed. |
| 86 | 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. |
| 87 | 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. |
| 88 | 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. |
| 89 | 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. |
| 90 | Excavating in trenches not exceeding 1.5 m wide and exceeding 1.5 m but not exceeding 3.0 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 exceeding 1.5 m but not exceeding 3 m in depth and getting out in hard/ dense soil complete all as specified and as directed. |
| 91 | Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point |
| 92 | 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. |
| 93 | 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. |
| 94 | 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. |
| 95 | Supplying & laying in trenches, in road cutting and along pole 100 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. |
| 96 | Supply and fix in repairs HT cable route indicator made of RCC M15 (Nominal Mix) using 12.5 mm nominal size crushed stone aggregate of size 200 mm (Length) X 200 mm (Width) X 1200 mm (Height) duly painted with cement base paint and written in white colour with lettering "MES HT Cable/ HT Straight Joint" using two coats of synthetic enamel paint in black colour & including necessary earthwork and excavation, embedded in PCC M15(Nominal Mix) using 20 nominal size graded crushed stone aggregate of size 400 mm X 400 mm X 300 mm complete all as specified and as directed. |
| 97 | M & L for danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with mild steel clamps, bolts and nuts of approved size, for HT, 250 mm X 200 mm complete all as specified and as directed. |
| 98 | 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. |
| 99 | 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. |
| 100 | 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. |
| 101 | Dismantling cross-arms of mild steel channel or angle sections etc. complete and setting aside for re-use or removing to store or for schedule of credit |
| 102 | Dismantling earth wire or copper conductor, service feeder or distributor span removing to store or taken on schedule of credit complete all as specified and as directed. |
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