CA NO CWE /HILLS /RKT/46 OF 2021-2022 REPAIR/ MAINTENANCE TO EXTERNAL ELECTRIFICATION HT SYSTEM AT RANIKHET, CHAUBATTIA, ALMORA, KAUSANI AND NAINITAL UNDER GE RANIKHET

Amount

Supply, fixing, transporting, erecting and fixing steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-55 (11 metres long) including two coats of aluminium paint over a coat of red oxide primer to external surfaces of steel tubular pole and two coats of anti corrosive bituminous paint internally and externally upto planting depth of pole and providing 3 bands/ straps with paint red post office colour and 2 bands with black synthetic enamel paint 300mm from plinth block and marking pole No. with black synthetic enamel paint including dismantling of existing HT pole any size/type complete all as specified and directed and including the following:- (i) Excavation in post hole not exceeding 0.60 mtr x 1.2 Mtr on plan & 2 Mtr deep for pole foundation & getting out in any type soil, returning, filling in the excavated soil after fixing the pole in foundation, ramming earth around in layers n.exc 25 cm thick and disposal of surplus soil to a distance n.exc 50 meters. (ii) M&L for providing PCC 1:4:8, type D-2 ( using 40 mm graded stone aggregate) in base of pole of size 1200mm x 600mm x 200 mm all as specified and directed. (iii) M&L for providing PCC 1:3:6, type C2 ( using 40 mm graded stone aggregate) in foundation 1200mm x 600mm x 1800 mm (sub base as mass concrete) for concrete encasing the pole up to GL all as specified and directed. (iv) M&L for providing PCC 1:2:4, type B-1 (using 20 mm graded stone aggregate) for plinth block /Collar above GL, 300 mm high and 450 mm x 450 mm square or as directed by Engr-in-Charge complete all as directed and as specified.

M&L in repair for disc type insulator porcelain vitreous 145mm high and 255mm dia ball and socket type white brown or green 'Two-in-series' assembly for tension with tension clamps for conductors, working pressure 11000 volts complete all as specified and directed.

M&L in repair for pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut 20mm dia, section of GI straps in 38x5mm, 150 mm height, 150 mm dia for 11000 volts grade complete all as specified and directed.

M&L for lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 Kilo amp, HT 11000 Volts grade complete all as specified and directed.

M&L for cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint including dismantling of old cross arms complete all as specified and directed.

S&F gang operated air break switch 11 KV, 200 amps with 12 insulators mechanically operated, mounted on insulator and steel frame, with operating mechanism worked from ground level complete all as specified and directed.

Supply, laying, jointing and testing in replacement XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts Earthed, grade cross sectional area 95 sq mm 3 core complete all as specified and directed.

Supply, laying, jointing and testing in replacement XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts Earthed, grade cross sectional area 120 sq mm 3 core complete all as specified and directed.

M&L for cable jointing kit for 11 KV (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 size 50 sqmm to 95 sqmm complete all as specified and directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold 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 directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold 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 directed.

M&L stringing and stretching Aluminium conductor, steel reinforced (ACSR) on HT/LT over head line including binding on insulator with aluminium binding wire or aluminium trap including dismantling of old ACSR complete all as specified and directed of the following sizes :- (a) (Weasel) 6/1x2.59mm aluminium and 1x2.59 steel (b) Ferret (6/1 x2.11 mm aluminium and 1 x2.11 mm steel)

M&L in replacement stay assembly complete comprising of 7/3.15 galvanised stranded stay wire of required length fixed to pole with and including FI clamps 50 x 6 mm size bolt, nuts washers, GI steel stay rod 20 mm dia and 1800 mm long stay bow 400 x 14mm, GI steel plate 300 x 300 x 6mm, two nos thimble loop insulator of size 90x140mm clearance hole 16mm including two coats of aluminium paint over a one coat of red oxide primer on exposed mild steel work as shown in electrical plate No. 1 of SSR part - I 2009 including the following :- (i) Excavation in post holes 0.42 mtr x 0.42 Mtr on plan & 1.67 Mtr deep for pole foundation in any type of soil, returning filling & well ramming including disposal soil to distance not exc. 50 mtrs from starting point. (ii) PCC 1:3:6, type C-2 using 40mm graded stone aggregated as in foundation.

Supply and laying 80 mm bore dia GI steel tubing light grade with all fittings laid in trenches/ under roads/ along pole/ wall for protection of Cable/ GI wire/ GI strip etc complete all as specified and directed.

Supply and laying 100 mm bore dia GI steel tubing light grade with all fittings laid in trenches/ under roads/ along pole/ wall for protection of Cable/ GI wire/ GI strip etc complete all as specified and directed.

M&L for earthing complete with galvanised steel, earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtrs below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level connected to galvanised earth lead wire 4 mm dia by means of bolts, nuts, check nuts and washers of galvanised iron/steel all as shown in in electrical plate No 5 on page 19-49 of MES schedule 1991 Part I connected to main switch board /main DBs/ earthing test point Including all necessary excavation and earth work in hard/ dense soil common salt and charcoal dust mixed and packed 150 mm thick all-round the GI earth plate, watering pipe 20 mm dia G I medium grade . GI sheet 0.63 mm thick funnel, wire gauge, 50mm thick RCC cover in PCC 1:2:4 type B1 duly reinforced with MS round bars 6mm dia @ 150C/C both ways and pit/ chamber in PCC 1:3:6 type C1 with suitable lifting handle to cover, GI protection pipe 25mm dia light grade up to 7.5m from complete all as specified ,indicated on electrical plate No 5 and as directed including testing on completion. NOTE: ( i ) Earth lead beyond 7.5 m from electrode to earth terminal GI pipe light grade 25mm/40mmdia for protection against mechanical damage to lead shall be measured separately (ii) On testing after completion if desired earth resistance is not obtained, the earthing will be redone at no extra cost.

All as per Sr item No. 16 but GI earth strip 32x6mm by means of nut, bolts, check nuts, washers of GI steel 40mm dia light grade 1.5 mtr long watering pipe with one socket and plug on top and 40mm dia GI pipe light grade for protection of earth strip upto a length of 7.5 mtr including PCC chamber RCC cover with lifting handle, layer of charcoal & salt including necessary excavation & earth work all as shown in EP No 5 connected to earthing test point all as specified and directed.

All as per Sr item No. 16 but using copper plate 600mmx 600mmx 3.15mm thick electrode and copper strip 20x3mm by means of nut, bolts, check nuts, washers of GI steel 40mm dia light grade 1.5 mtr long watering pipe with one socket and plug on tip and 40mm dia GI pipe light grade for protection of earth strip upto a length of 7.5 mtr incl PCC chamber RCC cover with lifting handle, layer of charcoal & salt including necessary excavation & earth work all as shown in EP No 5 connected to earthing test point all as specified and directed.

M&L for one coat of aluminium paint of approved quality including preparation of existing old painted surface of steel tubular pole HT complete including flat iron clamps, bracing, cross arms etc and numbering of poles with white synthetic enamel paint over a circular painted base complete all as specified and directed.

Tightening/ restringing existing loose/broken conductor ACSR/copper any type or size including binding with suitable binding wire and jointing jumpers as required at site complete all as specified and directed.

Tightening and restringing existing loose/broken continuous GI wire 4 mm dia on existing HT over head lines including stringing all as required at site complete all as specified and directed.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard/dense soil complete all as specified

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm complete all as specified and directed.

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

M&L for dry clean sand filling in trenches below and around under ground cable cushioning complete all as specified and directed. Note :- Thickness of sand cushioning shall be measured after punning.

Supplying and laying un-reinforced precast concrete cable cover, class HV, Type 1, flat, size 300mm x 180mm x 40mm complete all as specified and directed

Trimming of trees/branches from HT/LT pole clearing 2 meter horizontal 7.2 meter vertical distance from both side of conductor including shifting of cut trees from site complete all as specified and directed.

M&L in replacement of danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25x20cm size complete all as specified and directed.

S&F in replacement of HT jumper of existing two/four pole structure of transformer etc including using winding of ACSR conductor (Weasel) 11 KV, including PG clamp nut, bolts, thimbles and washers etc as required at site complete all as specified and directed.

M&L for disconnecting of defective transformer (indoor/outdoor) type capacity 25 KVA to 500 KVA, 11/433 KV copper wound from power mains and dismantling the same from 2/4 pole structure/plateform mounted substation at site and opening for removing of the unserviceable parts i.e. bushing, bushing rod, stud, lugs, nut & bolts as required and re-assembling after carrying out required repair and installation on existing 2/4 pole structure/plateform with neccessary arangements including connecting up electricallly, commissioning and testing complete all as specified and directed. Note : U/S, worn out items required replacement shall be measured and paid separately under respective items of Sch.

M&L for HT porcelain bushing complete with brass finned copper rod with nuts & bolts, gasket complete capacity transformer 25 KVA to 160 KVA complete all as specified and directed.

M&L for HT porcelain bushing complete with brass finned copper rod with nuts & bolts, gasket complete capacity transformer 250 KVA to 500 KVA complete all as specified and directed.

M&L for LT porcelain bushing complete with brass/tinned copper rod with nuts & bolts and gasket set of capacity of transformer 25 KVA to 160 KVA complete all as specified and directed.

M&L for LT porcelain bushing complete with brass/tinned copper rod with nuts & bolts and gasket set of capacity of transformer 250 KVA to 500 KVA complete all as specified and directed.

M&L for painting of transformer of capacity 25 KVA to 100 KVA apply two coats of synthetic enameled paint of grey colour by spray painting complete including preparation of old surfaces by removing dust, oil, grease etc complete all as specified and directed.

M&L for painting of transformer of capacity above 100 KVA apply two coats of synthetic enameled paint of grey colour by spray painting complete including preparation of old surfaces by removing dust, oil, grease etc complete all as specified and directed.

Checking the condition of Silica gel and packing the same to bring it to required blueish colour and re-filling the new Silica gel in to the breather complete all as specified and directed.

Supply, fixing, connecting and testing in replacement of Volt meter 11 KV, suitable for 110/240 volt AC supply, flush type 96x96 mm digital type with LCD display and LED indicator complete all as specified and directed.

Supply, fixing, connecting and testing in replacement of Amp meter 11 KV, 0-200 Amp with CT set suitable for 110/240 volt AC supply, flush type 96x96 mm digital type with LCD display and LED indicator complete all as specified and directed.

S&F in replacement of indicator lamp 24 volt complete all as specified and directed.

Dehydration /filtration of transformer oil of existing transformer/ OCB installed at site with portable plant to improve the dielectric strength 45 to 60 KV during filling after initial filtration including testing of dielectric strength after dehydration at site complete all as specified and directed.

Supply & filling of transformer oil in transformer/ OCB for toping up the level of oil having dielectric strength 40-60 KV during filling after initial filtration conforming to IS-335 complete all as specified and directed.

S&F breather suitable for transformer complete all as specified and directed.

M&L for Anti-climbing device; spikes type fabricated out of M.S. bars (round, square and flat) including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified and directed.

S&F HT cable/ route indicator cast iron of suitable size along HT cable trench including stringing and stretching, planting in ground with PCC complete all as specified and directed.

M&L in replacement of galvanised steel wire 4 mm dia for guard wire of HT/ LT over head line including binding on insulator with aluminium binding wire or aluminium trap compelete all as specified and directed.

M&L for calibration (all connections and Mechanism) cleaning servicing overhauling testing complete of 11KV OCB/VCB(SF6) as mentioned below a). Taking out incoming and outgoing HT 11 KV 3 core cables from the electric system and calibrating the CTs of each VCB/OCB with the help of primary injection kit and testing it for proper tripping system in presence of Engr-in-charge and reconnecting the incoming and outgoing HT cables complete in panels. b). Taking out overcurrent relay 02 Nos and Earth fault relay 01 No and calibration of relays with the help of secondary injection kit, and proper setting of relays and refixing back in existing positions testing of proper tripping system in presence of Engr-in-charge c). Inspecting, servicing and checking all connections of control winding, proper availability of supply AC/DC, incoming and outgoing connections and tightening them, cleaning the contacts and terminal with CTC solution and using the blower for dusting complete testing it making OCB/VCB set trouble free service in full satisfaction of Engr-in-charge and inclusive of one primer coat with red oxide one under coat , one finishing coat with aluminium paint complete all as specified and directed. (d) Repair/replacement of defective bus bar -3 Nos and PT bushing - 03 Nos. (e) All the instruments, primary and secondary injection kit and T&P required for the above job shall be arranged by the contractor at site and cost of the deemed to be included in the quoted rates.

S&F in repair indicating lamp LED type for 11 KV switchgear/HT panels with connecting accessories complete all as specified and directed.

S&F in repair electronic PF meter digital type for 11 KV HT panels/ OCBs/ VCBs with connecting accessories complete all as specified and directed.

S&F in repair PT Fuse for 11KV HT panels/OCB/VCB(SF6) for incoming/outgoing with connecting accessories complete all as specified and directed.

Taking of old unserviceable relays of HT OCB including supply & fixing of relay system in existing HT OCB panel complete with earth fault relay & over current relays including calibrating and inspection and testing complete assembly all as specified and directed.

Taking of old unserviceable relays of HT VCB/SF6 including supply & fixing of relay system in existing HT VCB panel complete with earth fault relay & over current relays as per existing sample including calibrating and inspection and testing complete assembly all as specified and directed.

Opening up the top cover of transformer and taking out the transformer Oil in a separate container after disconnecting the HT/LT side electric connections from both the primary & secondary side of the transformer of any type/description (indoor/ outdoor type) installed on pole/floor, for carrying out necessary repair/rewinding to HT/LT side after shifting the transformer to contractors work shop including taking out complete core assembly, Mugger the defective winding portion/taking out ,cleaning the laminated core and rewinding with appropriate gauge/ winding wire/strip winding of existing, description for transformer of capacity 100 to 400 KVA/including assembling & testing on completion & installation the same at the site all as specified and directed by the Engineer-In-Charge,. Note:- 1. Winding of coil shall be measured and paid separately under respective item. 2. Transportation charges are inclusive in the quoted rates. 3. The cost for the dehydration of transformer oil if required shall be measured and paid separately. 4. The cost of insulation material such as paper, cotton tape, latheriod sheet, cork sheet etc are inclusive in the coated rates.

Opening up the top cover of transformer and taking out the transformer Oil in a separate container after disconnecting the HT/LT side electric connections from both the primary & secondary side of the transformer of any type/description (indoor/ outdoor type) installed on pole/floor, for carrying out necessary repair/rewinding to HT/LT side after shifting the transformer to contractors work shop including taking out complete core assembly, Mugger the defective winding portion/taking out ,cleaning the laminated core and rewinding with appropriate gauge/ winding wire/strip winding of existing, description for transformer of capacity 50 to 100 KVA/ including assembling & testing on completion & installation the same at the site all as specified and directed by the Engineer-In-Charge,. Note:- 1. Winding of coil shall be measured and paid separately under respective item. 2. Transportation charges are inclusive in the quoted rates. 3. The cost for the dehydration of transformer oil if required shall be measured and paid separately. 4. The cost of insulation material such as paper, cotton tape, latheriod sheet, cork sheet etc are inclusive in the coated rates.

Supply only copper winding wire of any size/description suitable for step down transformer of any capacity, including winding of coils (HT) as per the manufactures design & specification to obtain rated KVA complete all as specified and directed.

Supply only copper winding wire of any size/description suitable for step down transformer of any capacity, including winding of coils (LT) as per the manufactures design & specification to obtain rated KVA complete all as specified and directed.

M&L for temparature guage 0 to 125 degree C with transformer installed at site with all accessories complete all as specified and directed

S&F drain valve for transformers upto 250KVA complete all as specified and directed

S&F drain valve for transformers with capacity more than 250KVA and upto 500 KVA complete all as specified and directed.

Dismantling of old model non-directional IDMT earth fault and over current Electro Mech relay, three phase type with, Aux supply 20 to 110V AC/DC with 2 NO+2NC contact and supply and fixing of electronic relays (Main Relay-01 No and Master Relay-02 Nos) with converter suitable for 11 KV OCB complete all as specified and directed. Note: Necessary additional alteration for fixing of relay including all extra items required to fix relay is included in the quoted rate.

S&F HT insulation tapes ISI Marked for terminating high voltage cables for insulation sealing of connection of wire and cable for bus bar insulation, transformer terminal insulation etc complete all as specified and directed.

S&F HT DO fuse of capacity 10 Amp complete all as specified and directed.

S&F HT DO fuse of capacity 20 Amp complete all as specified and directed.

S&F HT DO fuse of capacity 30 Amp complete all as specified and directed.

S&F HT DO fuse of capacity 40 Amp complete all as specified and directed.

S&F HT DO fuse of capacity 50 Amp complete all as specified and directed.

Maintenance of 2/4 pole structure by disconnecting all incoming and outgoing overhead line conductor jumper joint and UG cable end terminal joint from GOD etc and rewinding/renewal of all joint with fresh joint, inserting PVC coloured sleeves over conductor including treatment of GOD contacts and ACSR conductor with conducting jelly complete all as specified and directed.

M&L for 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 20x3mm copper strip complete all as specified and directed.

S&F fire retardent rubber mat of 1 Mtr x 2 Mtr x 19 mm having insulation capacity of 33 KV complete all as specified and directed.

M/S NAYAL ELECTRICALS

M/S HILTRON SYTEM