GE AF/AMB-43/2021-22 REPAIRS AND MAINTENANCE OF ELECTRICAL SUB-STATION, LIFT (ATC) INCLUDING TECHNICAL AND DOMESTIC AREAS AND ALLIED E/M WORKS AT AF STATION AMBALA

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, manholes, etc. or for laying pipes, etc. not exceeding 10sqm on plan and getting out in soft / loose soil complete all as specified and as directed

Returning, filling in, including, spreading, leveling, watering and well ramming in layers not exceeding 25cm deep as in any type of soil complete all as specified and as directed

Removing excavated materials (any type of soil) to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point including spreading in low lying area and leveling all as specified

M&L for fine dry river sand cushioning by laying 8cm thick layer below the cable for making soft bed and 15cm above the cable and then punning down to its consolidated thickness of 18cm after the cable is laid all as specified in SSR Part-I complete all as specified and as directed Note: Only punned thickness of sand shall be considered for measurement purposes

Supplying and laying unreinforced precast concrete cable covers, class HV, type I, flat, size 300x180x 40mm (length parallel to axis of cover), ISI marked, duly embossed with wordings 'HT CABLE' complete all as specified and as directed

Supplying, fixing / laying steel tubing, 80mm bore, light grade, galvanised with screwed and socketed joints, in any length, including supply and fixing all fittings, ISI marked conforming to IS -1239 and fixed to walls or laid in floors / trenches required for protection of electric clables duly fixed with FI 40x3mm clamps @1.5m c/c of suitable size / shape including all necessary nuts, bolts, washers, etc. complete all as specified and as directed

M&L for rewinding of stabilisers with suitable size of copper winding wire including all insulation material, tightening of connections, crimping, soldering, etc. as required and taking out and disposing off burnt windings complete all as specified and as directed

M&L for dehydrating and filtration of voltage stabiliser (of any type) oil by using proper filtration, heating, etc. machinery till di-electric strength reaches 40 to 60kV in one minute complete all as specified and as directed Notes: (i) Dehydration and filtration process shall have to be carried out in presence of rep of the AO (ii) Dehydration and filtration reports shall be submitted to claim any payment

M&L for draining out and filling in topping up transformer oil / voltage stabiliser oil conforming to IS: 339-1989 having breaking down capacity more than 50kV complete all as specified and as directed

M&L disconnecting 3 phase servo voltage stabilisers from main supply and carrying out maintenance and servicing including replacement of all defective / worn out parts / spares and testing on completion for proper functioning complete all as specified and as directed for the following capacities: Note: (i) Maintenance / servicing shall be got done through authorised service centres / rep of manufacturer as approved by the Engineer-in-charge (ii) Servicing certificate including guarantee thereof shall be submitted to claim payment (iii) Replacing defective spares shall be measured and paid separately under respective items herein after (iv) Quoted rate shall include carting out / in, loading / unloading, fixing in position of any item requiring repairs at workshop

20 to 50kVA

60 to 100kVA

125 to 200kVA

250 to 500kVA

S&F in repairs push button switch of existing makes complete all as specified and as directed

S&F in repairs DPDT switch of existing makes complete all as specified and as directed

S&F in repairs micro switch of existing makes complete all as specified and as directed

S&F in repairs panel lamp of existing makes / types complete all as specified and as directed

S&F in repairs potentiometer of existing makes complete all as specified and as directed

S&F in repairs suitable voltmeter of rating 0 to 500V complete all as specified and as directed

S&F in repairs ampere meter with CT of rating 0 to 200A complete all as specified and as directed

S&F in repairs electronic circuit card (PCB) of existing make and type complete all as specified and as directed

S&F in repairs PCB holder of existing make and type complete all as specified and as directed

S&F in repairs trigger transformer of existing make and type complete all as specified and as directed

S&F in repairs RC network for 3KG motor, of existing make and type complete all as specified and as directed

S&F in repairs RC network for 10KG motor, of existing make and type complete all as specified and as directed

S&F in repairs carbon bush (set of three) of existing make and type complete all as specified and as directed

S&F electronic siren / hooter, horizontal type, single phase, single stage, continuous normal operationfor minimum 50mins with sound level 65 to 120dB measured at 1.5m above ground with sound output variation of +5dB at 500m dia range complete all as specified and as directed

S&F in repairs aluminium thimbles suitable for 16 to 50sqmm cable complete all as specified and directed

S&F in repairs aluminium thimbles suitable for 70 to 120sqmm complete all as specified and directed

S&F in repairs aluminium thimbles suitable for 150 to 240sqmm complete all as specified and directed

S&F in repairs aluminium thimbles suitable for 300 to 400sqmm complete all as specified and directed

M&L for shutting down of power supply and preparation of surfaces viz. scrapping old paints, smoothening, etc. of voltage stabilisers and painting with one coat of synthetic enamel paint of approved tint complete all as specified all as directed of the following capacities:

20 to 50kVA

60 to 100kVA

125 to 200kVA

250 to 500kVA

S&F in repairs MCCB 4P 100A 415V 50Hz 16kA with adjustable thermal release fixed magnetic protection type complete all as specified and as directed

S&F in repairs MCCB 4P 200A 415V 50Hz 25kA with adjustable thermal release fixed magnetic protection type complete all as specified and as directed

S&F in repairs MCCB 4P 250A 415V 50Hz 25kA with adjustable thermal release fixed magnetic protection type complete all as specified and as directed

S&F in repairs MCCB 4P 315A 415V 50Hz 35kA with adjustable thermal release fixed magnetic protection type complete all as specified and as directed

S&F in repairs MCCB 4P 400A 415V 50Hz 35kA with adjustable thermal release fixed magnetic protection type complete all as specified and as directed

S&F in repairs MCCB 4P 630A 415V 50Hz 50kA with adjustable thermal release fixed magnetic protection type complete all as specified and as directed

Supplying, laying, jointing, testing & commissioning HT 11 KV (E) XLPE insulated cable, sound compacted aluminium conductor, screened with extruded semi conducting layer, insulation screening with copper tape cover laid up with PVC (ST-2) extruded inner sheathed GI strip armoured PVC (ST-2) out sheathed, ISI marked with IS-7098 part-II 1985, laid in pipes/ducts/along poles/wall/equipment, etc. including taking down old unserviceable cable / OH conductor complete all as specified and as directed of the following sections:

3 core 95 sqmm

3 core 120 sqmm

S&F bus bar chamber of size 600x600x450mm suitable of 3 phase and neutral 433V outdoor type fabricated out of 3.15mm thick MS sheet with 400A rated aluminium busbar 4Nos., PVC sleeves (coloured red, yellow, blue and black) with suitable locking arrangments and four legged angle iron stand made of angle iron of size 40x40x6mm duly grouted in and including foundation in PCC 1:2:4 type C1 using 20mm graded stone aggregates alongwith all necesary cable connections, lugs and cable glands including applying two coats of synthetic enamel paint (of approved tint) over a coat of red oxide zinc chrom primer including taking down and disposing old bus bar chamber / enclosure complete all as specified and as directed

S&F bus bar chamber of size 600x600x450mm suitable of 3 phase and neutral 433V outdoor type fabricated out of 3.15mm thick MS sheet with 200A rated aluminium busbar 4Nos., PVC sleeves (coloured red, yellow, blue and black) with suitable locking arrangments and four legged angle iron stand made of angle iron of size 40x40x6mm duly grouted in and including foundation in PCC 1:2:4 type C1 using 20mm graded stone aggregates alongwith all necesary cable connections, lugs and cable glands including applying two coats of synthetic enamel paint (of approved tint) over a coat of red oxide zinc chrom primer including taking down and disposing old bus bar chamber / enclosure complete all as specified and as directed

M&L for cable jointing kit for 1.1kV earthed grade cable for end termination outdoor heat shrink type joint with jointing material and accessories suitable for 3.5 core, 50 to 150mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV earthed grade cable for end termination oudoor heat shrink type joint with jointing material and accessories suitable for 3.5 core, 185 to 300mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV earthed grade cable for indoor / outdoor straight through heat shrink type joint with jointing material and accessories suitable for 3.5 core, 185 to 300mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV earthed grade cable for indoor / outdoor straight through heat shrink type joint with jointing material and accessories suitable for 3.5 core, 50 to 150mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1.1kV earthed grade cable for indoor / outdoor straight through heat shrink type joint with jointing material and accessories suitable for 4 core, 16 to 25mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 11kV earthed grade cable for indoor / outdoor straight through heat shrink type joint with jointing material and accessories suitable for 3 core, 95 to 120mm², XLPE insulated armoured aluminium conductor cable complete all as specified and as directed

M&L for cable jointing kit for 11kV earthed grade cable for indoor / outdoor straight through heat shrink type joint with jointing material and accessories suitable for 3 core, 185 to 300mm², XLPE insulated armoured aluminium conductor cable complete all as specified and as directed

M&L for cable jointing kit for 11kV earthed grade cable for indoor end termination heat shrink type joint with jointing material and accessories suitable for 3 core, 95 to 120mm², XLPE insulated armoured aluminium conductor cable complete all as specified and as directed

M&L for cable jointing kit for 11kV earthed grade cable for outdoor end termination heat shrink type joint with jointing material and accessories suitable for 3 core, 95 to 120mm², XLPE insulated armoured aluminium conductor cable complete all as specified and as directed

M&L for cable jointing kit for 11kV earthed grade cable for outdoor end termination heat shrink type joint with jointing material and accessories suitable for 3 core, 185 to 300mm², XLPE insulated armoured aluminium conductor cable complete all as specified and as directed

S&F in repairs energy efficient LED street light fitting (beamer), 90W, input voltage 230VAC, 50Hz with ingress protection IP 65, CRI>70, PF>0.95, minimum 50000 burning hours, THD> 20, CRCA housing including all fixing arrengment like clamps, nuts, bolts, washers, 90W LED lamp with all accessories pre-wired and connecting with twin core twisted flexible copper conductor cable with all necessary staging, etc. for fixing at any locations complete all as specified and as directed

S&F in repairs recess/surface mounting LED flat panel 2'x2' with high efficient LED & glare free full window opal diffuser of 36W, PF 0.9, CRI> 70, L 70 with all accessories pre-wired and connecting with twin core twisted flexible copper conductor cable with suitable size rod complete all as specified and as directed

Esha Engineers