CWE/P-44/2021-22 REPAIR REPLACEMENT AND MAINTENANCE OF ELECTRIC INSTALLATION 66/11 KV INCLUDING DEHYDRATION AND TOP UP OF TRANSFORMER WITH ALLIED SERVICES AT BASOLI AND JANGLOT UNDER GE BASOLI

Amount

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5m in depth for laying of pipe, cable, foundation of electric pole etc and getting out in soft/loose soil, complete all as specified and directed.

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

Removing surplus soil to a distance not exc. 50 M and depositing where directed at a level not exceeding 1.5 Mtr above the starting point, complete all as specified and directed.

Supply and spreading fine sand in trenches for cushioning of under ground cable/filling of cable with a layer of sand 8 cm before laying the cable and 15 cm after laying the cable ducts, complete all as specified and directed by Engr-in-Charge at site. Note:- Only punned thickness 18 cm shall be measured for payment purpose

M & L for Un-reinforced precast concrete cable cover class HV, type 1, flat, size 300 mm X 180mm x 40mm, complete all as specified and directed.

Supply fix and laying of XLPE insulated screened, PVC bedded galvanised steel strip or wire armoured, electric power cables ( Heavy duty) with aluminium conductor 11000 volts grade, cross sectional area of size 95 sqmm x 3 core. in trenches, all as specified and directed. (Excavation & earth work shall be measured & paid separately).

All as per item No.6 above but of size 150 sqmm x 3 core, complete all as specified and directed.

M & L for MS tube light grade galvanised of size 80mm dia with all fittings and laid in trenches / under roads/ under floors/ fixing on poles and walls with clamps, complete all as specified and directed.

S&F 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 x XLPE armoured aluminium conductor cable of size 95 sqmm, complete all as specified and directed.

All as per item No 9 above but of size 150 Sqmm, complete all a specified and directed.

M &L for Cable jointing kit for 11 KV (earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core x XLPE armoured aluminium conductor cable of size 150 sqmm, complete all as specified and directed.

M & L for Earthing complete with galvanized steel earth plate electrode 60 cm x 60cm x 6mm thick buried directly in ground to the depth of not less than 2.25 mtr below ground level with top edge of earth plate to a depth not less than 1.50 m below ground level connected to GI wire 4mm dia by means of galvanized bolts, nuts check nuts and washers and necessary excavation and earth work PCC 1:2:4 type B-1 using 20mm graded aggregate for earth pit RCC cover, charcoal & common salt filled in alternate layers funnel with 20mm bore light grade watering pipe, 15mm dia GI pipe light grade for projection of earth lead, wire mesh and connected to earth point including testing on all as specified and shown in electric plate No 3 of SSR part I.

M & L for Earthing complete with galvanized earth plate electrode 60 cm x 60cm x 6mm thick buried directly in ground to the depth of not less than 2.25 mtr below ground level with top edge of earth plate to a depth not less than 1.50 m below ground level connected to GI strip 32 x 6mm as earth lead by means of galvanized bolts, nuts check nuts and washers and necessary excavation and earth work PCC 1:2:4 type B-1 using 20mm graded aggregate for earth pit RCC cover , charcoal & common salt filled in alternate layers funnel with 20mm bore light grade watering pipe, 40mm dia GI pipe light grade for protection of GI strip, wire mesh and connected to earth point including testing on all as specified and shown in electric plate No 3 of SSR part I.

S& F in repair Switch air break, gang operated triple pole vertical type mechanically operated, mounted on 15 insulator and steel frame, with operating mechanism worked from ground level for current rating 200 Amps 11000 Volt grade, complete all as specified and directed.

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

Dismantling of HT over head lines 3 wire span measured as one length ACSR conductor and Re- stretching of ACSR Conductor 3 wire of any size on HT over head line 11000 volts grade incl earth continuity wire incl bindng properly, replacement of jumper with existing / suitable size of ACSR conductor, complete all as specified and directed.

M&L for Painting to bottom of existing PCC poles 11 mtr long pole upto 2.5 mtr from ground level to be painted with 30 cm height each in black and Red colour alternatively, total of 5 Nos connecting from the Top PCC coping and marking pole No with paint as per approved pattern complete all as specified and directed (Note:-The numbering shall be hand written only stencils shall not be allowed, size of letter shall be 50 mm high and 10 mm wide), complete all as specified and directed.

M & L for Painting of cross arm and MS channel , nut bolts, clamps etc on HT two Pole Structure of 11 Mtr Long after preparing/Scrapping the metal surface with emery sheet in all respect for making smooth surface and painted with one coat of primer and two coats of aiuminium paint and Bottom of the pole up to 2.5 meter from ground level to be painted with two coats synthetic enamel paint ( every 50cm block ,yellow & black ) & writing the pole & feeder no. and marking with black paint in coming and outgoing cable, complete all as specified and directed.

M &L for Painting of cross arm and MS channel , nut bolts, clamps etc on HT four Pole Structure of 11 Mtr Long after preparing/Scrapping the metal surface with emery sheet in all respect for making smooth surface and painted with one coat of primer and two coats of aiuminium paint and Bottom of the pole up to 2.5 meter from ground level to be painted with two coats synthetic enamel paint ( every 50cm block ,yellow & black ) & writing the pole & feeder no. and marking with black paint in coming and outgoing cable, complete all as specified and directed.

M&L for Servicing and painting of 11 KV GOD by cleaning the contact ,Pin insilator with CTC and applying the Patrollium Jelley at the contact point /down rod links for smooth operation including replacing the rusted bolts and nuts(using GI Nuts& Bolts)and deffective insulator of GOD as required at site. Painting shall be done by after preparing/scrapping the metal surface with emery sheet in all respect and painted with one coat of primer and two coat of synthetic enamel paint including cross arm/MS channel and male female contact in red/yellow/blue colour, complete all as specified and directed. Note:-Insulator shall be measured and paid under relevant items

Male/Moving contact

Female/Fixed Contact

Copper Tinned Strip

M & L in replacement silica gel breathers assembly transparent PVC body with top and bottom posn pressed with metallic cover filled with silica gel blue in colour and suitable for fixing on existing size 15/20/25 mm dia as per situ requirement for transformers of capacity up to 315 KVA, complete all as specified and directed.

M & L in replacement silica gel breathers assembly transparent PVC body with top and bottom posn pressed with metallic cover filled with silica gel blue in colour and suitable for fixing on existing size 15/20/25 mm dia as per situ requirement for transformers of capacity 400 KVA to 715 KVA, complete all as specified and directed.

Supply and fix smooth natural stone river pebbles of size 40 to 50 mm oval/round in shape, complete all as specified and directed and as directed by Engr-in-charge.

M & L for surface excavation including removing green vegetation, roots, bushes, etc from surrounding of Transformers/Poles/ substations etc., complete all as specified and directed.

Supply and fix Lightening arrestor Non Leanear metal oxide type conform to IS 3070 (part I) complete with all fittings transmission classes discharge Capacity 65 KA suitable for 11 KV out door type, complete all as specified and directed by Engineer-in-charge.

M&L for GI strip 32x6 mm as earth continuity lead beyond test point fixed to wall on batten or recess or chases or buried in ground or drawn in conduit pipe, complete all as specified and directed.

M&L for fixing the name boardfabricated with PVC Sheet 2mm thick of size 1.5x3 feet and fixed suitable size PVC guitty,nuts, bolts and screws etc fixed with wall including writing the detail of Sub Stn and feeder etc with blue background & white colour Letter including Machine Histroy of all Equipment, complete all as specified and directed by Engr -in Charge.

Supply and filling up of fresh transformer oil as in topping up/levelling up after dehydration having dielectric strength not less than 50 KV at 2.5 mm gap conforming to IS -335/1993, complete all as specified and directed.

Opening of VCB/Ring main unit) 11 KV of Capacity 630/ 800 Amps for servicing, cleaning, tightening of loose mechanical mechanism, greasing,inspection of Busbar,CTs/PTs internal wiring of control panel ,indicators,measuring of IR value ,callibration of relays matching with 66 KV Grid replacement of unserviceable spare parts testing of tripping system and removing all type of dust and settled dirt by means of required T&P all as specified and directed by Engr-in-charge (spares shall be measured & paid separately) and testing, complete all as specified and driected.

Supply and filling silica gel blue colour in existing breather assembly after taking out old silica gel, complete all as specified and directed by Engr-in-charge

M & L for Dehydration of Transformer oil through on load mobile stream line transformer oil filteration plant at 66 KV Sub Station (5 MVA Transformer-02 Nos) with all accessories connected to Transformer to carrying out filteration of oil for desired di electric strength ie not less than 50 KA at 2.5 mm Gap, complete all as specified and directed by Engr-in-charge.

Supply and fixing in replacment of MCCB with adjustable thermal and magentic setting type Release Range 100 Amps 3 Pole breaking capacity at 415 volt AC 50 Hz 16 kA, complete all as specified and directed.

Supply and fix in replacement HRC type fuse BNS42V-4O 4AgG 415V AC 80 KA B 988-6IEC 60269-2, complete all as specified and directed.

Supply and fix in replacement Conventional with LED security lights of 200/210 W Flood lights 230V AC outdoor type with thermal management in multiple optics and equipped with IP 66 protection, with impact and corrosion resistant complete with driver and lamp, complete all as specified and directed.

M&L for Painting of 66 KV Yard iron framed structure with aluminium paint 02 coats (02 Nos LA, 02 Nos Isolator, SF-6 Breaker and CT/PT) including greasing, tightening, nuts, bolts etc, complete all as specfied and directed.

S&F in repalcement & testing and commissioning maintenance free dry batteries of 2 V, 100 AH Electrically connected to each other battery to VCB and power pack as required at site and coonected, complete all as specified and directed.

S&F in repalcement & testiing and commissioning indication lamp DC 24 Volts with showing red, yellow and green in colour of 22.5 mm dia to monitor on HT panel board suitable for 11 KV VCB panel Supply, complete all as spcified and directed.

M&L in replacement for Elsatomer Insulating Mats for Electrical Purpose Class A Voltage grade upto 3.3 (AC) as per IS 15622 : 2006 with ISI mark of the thickness 3.00 mm +10% of approx width 1 mtr along with suitable adhesive/chemibound resin water proofing compound and sealing material all as per manufacturers's recommendations, complete all as specified and directed.

S&F in replacment, testing and commissioning Vaccum Interupter of cap 630/800 Amp, complete all as specified, as per OEM HT Panel Manufacturer.

S&F in replacment, & testing and commissioning Isolating contact for R/Y/B phase for VCB of cap 630/800 amps complete all as specified and directed, as per OEM HT Panel Manufaturer

Notes : The Schedule of Credit amount shall be deducted from the total of this schedule(BoQ) to arrive at Contract Sum.

SHUSHANT ASSOCIATES

Ashoka Engineers