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| 1 | Disconnecting existing incoming & outgoing connections and inspection, servicing, testing, checking and calibration healthiness of entire HT 33 kV, 800 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 33KV, upto 800A, 25 KA circuit breaker by authorised Engineer complete all as specified and directed. |
| 3 | S&F in repalcement of tripping and closing coil for 33 KV VCB outdoor type as per existing complete all as specfied and directed. |
| 4 | S&F in replacement of limit switch for VCB as per existing complete all as specified and directed. |
| 5 | Inspection, servicing, testing, checking and calibration of remote panel for HT 33 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. (As mentioned in ser No. 1).The items listed below inclusive and provided.a) Rewiring of DC connections (b) Over current relay (c) Indication Lamp(d) Multifunction Meter (e) AMP Meter(f) Bold Meter(g)TNC SWITCH(h) ANCTER(j)CTS Relay(k) Bazer 30 volt(l)WTI, UTI(m) Indicator(n)Door handle(o)Copper control Wire 2.5 & 1.5 sq.mm(p)Natural Link(q) MCV(r) Rubber Packing ,holder with bulb 30 vol etc. other item |
| 6 | 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. |
| 7 | 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 soft/ loose soil complete all as specified and as directed. |
| 8 | 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. |
| 9 | Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and as directed. |
| 10 | 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. |
| 11 | Supply & laying unreinforced precast concrete cable cover class HVP type 1, with peak shape, dimension 300 mm X 180 mm X 40 mm and 65 mm peak thickness as per IS 5820: 1970 complete all as specified and as directed. |
| 12 | 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 complete all as specified and as directed. |
| 13 | 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. |
| 14 | Taking down, opening/ stripping off the transformer, 11KV/0.433KV, up to 250KVA capacity draining of oil, lifting the core and coil assembly for identification of defects, washing and cleaning dust, dirt & sludge deposit etc making internal connection, servicing the tap changer and reassembling the transformer after repair work, providing new cork sheet gasket packinng 5mm thick, nuts, bolts and washers etc. as required filling fresh transformer oil and testing including transportation from sub station to work shop and back, complete all as specified and directed.Note. Supply of defective parts shall be measured and paid separately under relevent item of the schedule. |
| 15 | 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. |
| 16 | M&L in repairs for insulating oil (Transformer) confirming to IS 355 and topping up/replacement of transformer oil duly filtered to withstand dielectric strength 60KV or above (when tested with 2.5mm gap electrode), complete all as specified and directed. |
| 17 | S & F 12 kV or 17.5 kV/ 250 A HT 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. |
| 18 | S & F upto and including 1.1 kV/ 250 A LT 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. |
| 19 | Supply only oil level indicator clean prismatic type suitable for transformer upto 250KVA with necessary gasket etc. complete all as specified and directed. |
| 20 | Supply only 11KV grade brass nuts, check nuts, washers etc for transformer upto 250KVA capacity complete all as specified and directed. |
| 21 | Supply only 11KV grade brass studs with brass nuts, washers etc for transformer upto 250KVA capacity complete all as specified and directed. |
| 22 | M&L in repair cable jointing kit for 11KV(earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following sizes complete all as specified and directed. |
| 23 | 120 Sqmm to 185 sqmm |
| 24 | 50 Sqmm to 95 sqmm |
| 25 | M&L in repair cable jointing kit for 11KV(earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following sizes complete all as specified and directed. |
| 26 | 120 Sqmm to 185 sqmm |
| 27 | 50 Sqmm to 95 sqmm |
| 28 | 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 10 KA and complete with galvanised clamping arrangements, GI bolts, nuts, washers etc. complete as specified and as directed. |
| 29 | Supply and erection 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 10 KA and complete with galvanised clamping arrangements, GI bolts, nuts, washers etc. complete as specified and as directed. |
| 30 | S&F in repair transformer breather assembly oil seal type make of heavy transparent plastic body having top and bottom cover made of aluminium or ,mild steel of capacity 500grams filled with silica gel fixed in replacement complete all as specified and directed. |
| 31 | Dismantling, Supply and fixing 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. |
| 32 | M&L for stay assembly with stay rod of diameter 20mm complete with all accessories as shown in electrical Plate No 1 (excavation and concrete measured separately) complete all as specified and as directed. |
| 33 | Dismantling air break gang operated switches vertical/horizontal mounted and fuse unit including insulators and operating mechanism for repair/ replacement of broken/worn out components and insulators etc. |
| 34 | Supply, testing and commissionin gang operated air break switch, three phase, outdoor type, nominal system voltage 11 KV rated voltage 12 KV, rated normal current 200 Amps, rated frequency 50 HZ, horizontal type 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.(iii) To earth and between poles 75 KV (Peak).(iv) 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 polymer insulator and steel frame with operating mechanism comprising of 25mm dia heavy duty GI pipe, locking arrangements, mounting system required nuts and bolts worked from ground level complete in all respect including all minor accessories screws, 7 lever lock laminated operating handle etc all as specified and as directed. |
| 35 | Dismantling, re-erecting, restringing tensioning and repair to overhead line ACSR conductor of any size upto 5 conductors in one span as required on poles LT / HT including fixing insulators and jointing with ACSR conductor complete all as specified and as directed. |
| 36 | Supply & Fix Shakle type porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height, 150 mm dia for 11000 volt grade complete all as specified and directed. |
| 37 | Supply & Fix Pin type porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height, 150 mm dia for 11000 volt grade complete all as specified and directed. |
| 38 | Dismantling unserviceable insulators any type any size and removing from site complete all as specified and directed. |
| 39 | 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. |
| 40 | Dismantling ACSR or AAC conductors removing to store or taken on schedule of credit complete all as specified and as directed. |
| 41 | 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. |
| 42 | Servicing and maintenance of Air Break switch (Gang operating Device) both verticall and horizontal type of capacity 33KV and 11KV triple pole mechanically operated on insulator and steel frame by greasing, checking serviceability and replacement of heavy duty brass Jaw and Blade set, copper strip set, lugs nutbolts, Jumpers all set of three complete all as specified and directed. |
| 43 | Dismantling stay assembly complete all as specified and directed. |
| 44 | Dismantling concrete poles/ struts, any size and transporting to store and stacking complete all as specified and as directed. |
| 45 | 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 yellow 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. |
| 46 | M & L for cement concrete M15 (Nominal Mix) using 20 mm nominal size graded crushed stone aggregate in lintels upto 1.5 m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs, water troughs, slab staging for water tanks, filling of pressed steel door frame, fixing of hold fasts and the like including weathering, slightly rounded or chamfered angles and throating including necessary formworks complete all as specified and as directed. |
| 47 | M&L for preparation of old painted surface of transformer of capacity upto 250KVA complete all as specified as per approved colour by Engr-in- Charge after painting re-write the name, capacity number without disturbing the supply complete all as specified and directed. |
| 48 | Supplying and laying synthetic Rubber insulated mats 3 mm thick for voltage upto 33 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as specified and as directed. |
| 49 | Painting to existing steel tubular HT poles, 11mtr long including cross arms, channels angle iron support, bracings complete etc. with two coats of aluminium paint superior quality of approved make on surface exposed to view and making 30cm wide strips(total 5Nos) with yellow and black paint altenately on external surfaces above PCC benching including preparation of old painted surfaces by scrapping etc complete all as specified and directed. Please Enable Macros to View BoQ information |
