CA NO CWE/PAT/T-18/2022-23 REPAIR REPLACEMENT OF HT SWITCHGEARS, TRANSFORMERS AND ALLIED WORKS IN NEW CANTT AT PATIALA UNDER GE NORTH PATIALA

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 as directed.

All as per item No 1.00 above but exceeding more than 1.5 m in depth

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

M&L for Sand cushioning with clean dry sand to cables with layer of sand 8cm before laying of cable and 15cm thick after laying of cable complete all as specified and as directed. Note : For payment purpose punned thickness of 18cm shall be measured against spread thickness of 23cm as mentioned in para 19.75 of SSR part-I

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.

Prestressed concrete pole 11.0 metres long, 152mm x 152 mm at top and 152 mm x 260 mm at bottom, class 9 complying with requirement of relevent IS and painting the pole upto 5 feet from ground level with black and red alternate strip of 30 cm each with synthetic enamel paint including removing of broken pole debries all as specified and as directed. (Note : Earth work and foundation shall be measured and paid seperately)

Material and labour for PCC 1:3:6 type C-1 using 20 mm graded stone aggregate for coping around the pole strut above ground level, foundation of stay etc. including neccassory form work and finishing the surface fair and even without using extra cement all as specified and as directed.

M&L providing precast RCC duct covers made of cement concrete (1:2:4) type B1 20 mm graded aggregate and suitable reinforcement set in cement mortar 1:4 cover slab (for cable duct) with plain faces complete all as specified and as directed.

Supply, laying, jointing and testing HT XLPE cable, cross section area 300 Sqmm, 3 core, 11000 V, screened, PVC 'E' grade insulated bedded, galvanised steel (heavy duty ) strip or wire armoured with aluminium conductor, pressure earthed system, conforming to IS 7098 (Part-1 ) 1977 and Part-II of 1985, laid in pipes / ducts / trenches, under floor and roads or fixed to wall etc including taking out old unserviceable cable, any type, complete all as specified and as directed.

All as per item No. 10.00 above but of size 120 sqmm X 3 core

All as per item No. 10.00 above but of size 95 sqmm X 3 core

Dismantling and taking down old ACSR conductor and GI wire of any size from poles of HT over head lines including disconnection complete all as specified and as directed.

Material and labour for ACSR conductor Weasel to dog (6/1/2.59 to 6/1/4.72) any size to be drawn straight horizontal on over head lines on existing poles including stringing, stretching, binding with insulators. Weight of conductor shall be measured straight horizontal distance between centre of two adjacent poles and calculating weight of conductor of size and length by adding 3% extra for sag ,jointing jumpers,etc complete all as specified and as directed. Note : Contractor will liable to arrange the boards "MEN AT WORK" near the execution site for laying ACSR conductors.

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 as directed.

All as per item No 15.00 above but of size 100 mm dia.

S&F for Cable jointing kit for 11 KV (earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core x XLPE armoured aluminium conductor cable of size 70 to 95 sqmm complete all as specified and directed.

All as per item No 17.00 above but of size 120 to 185 Sqmm.

All as per item No 17.00 above but of size 240 to 300 sqmm.

M &L for Cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core x XLPE armoured aluminium conductor cable of size 70 to 95 sqmm complete all as specified and directed.

All as per Srl item No 20.00 above but of size 120 to 185 sqmm.

All as per Srl item No 20.00 above but of size 240 to 300 sqmm.

M &L for 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 x XLPE armoured aluminium conductor cable of size 70 to 95 sqmm complete all as specified and as directed.

All as per Srl item No 23.00 above but of size 120 to 185 sqmm.

All as per Srl item No 23.00 above but of size 240 to 300 sqmm.

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 or 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 brick 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 or 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 brick 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 with 15 insulator switch triple pole, mechanically operated, mounted on insulator and steel frame, for current rating 200 Amp operating Voltage 11 KV out door, vertical mounted type, complete with locking arrangement, assembly with fuse mount carrier and fuse element of required capacity and isolator suitable for 11 KV including necessary electric connection and 11 KV fuse (drop out type) of capacity as required at site, with DO fuses assembly and one number operating rod of 25 mm dia bore medium grade GI pipe of suitable length, worked out from ground level and handle complete with lock and two Nos keys including flat iron clamp 50mm x 6 mm MS channel of suitable size and length for fixing GOD including nut, bolt, washers complete all as specified and as directed.

All as per Srl item No 28.00 above but current rating 400 Amps.

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.

M&L for Painting to bottom of existing PCC poles 11 mtr long pole upto 1.5 mtr from ground level to be painted making 30 cm heigh strips in black and Red colour alternatively, total 5 Nos strips starting from the Top PCC coping and making pole No with paint as per approved pattern complete all as specified and directed (Note:- Size of letter shall be 50 mm high and 10 mm wide.)

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 two coats of aiuminium paint

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 two coats of aiuminium paint.

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 /corroded 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 two coat of synthetic enamel paint. Note:-Insulator shall be measured and paid under relevant items

Suppy only Male/Moving contact for GOD Switch

Supply only Female/Fixed Contact GOD Switch.

Supply only Copper Tinned Strip for GOD Switch

Supply only loop type insulator, vitreous porcelain, whirte, brown or green large size with overall dimension 90 x 140 mm clearance of hold 25.5mm complete all as specified and as directed.

Supply and fix HT disc type porcelain vitreous white, brown or green insulator, size 145 mm high and 255 mm dia, ball and socket type with tension clamp for conductor for working pressure 11000 volts complete all as specified and as directed.

Supply and 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 volts grade complete all as specified and as directed.

M & L in replacement silica gel breathers assembly transparent PVC body with top and bottom portion 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 site requirement for transformers of capacity up to315 KVA complete all as specified and as directed.

M & L in replacement silica gel breathers assembly transparent PVC body with top and bottom portion 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 site requirement for transformers of capacity 400 KVA to 715 KVA complete all as specified and as directed.

Supply and fill up silica gel in different capacity of transformer breathers complete all asspecified and as directed.

Material and labour for stone aggregate of size 40 - 50 mm under 4/6 pole HT structure / surounding area of outdoor of power house manually without damaging any equipments, cable or parts including spreading and levelling uniformally in layers n.exc 15 cm thick complete complete all asspecified and as directed.

Removing green vegetation, roots, bushes, etc from surrounding of Transformers/Poles/ substations etc. complete all as directed. (Note : The required T & P etc shall be arranged by the contractor).

Supply and fix Lightening arrestor Non Linear 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 including taking down the unserviceable LA complete all as specified and as directed.

Disconnecting and taking down of transformer indoor/outdoor type 11000/415 volts having capacity 50 to 100 KVA, transportation to contractor’s workshop for repairs, strip opening of transformer after unscrewing nuts /bolts screws and connected accessories such as breather, conservator tank, temp gauge, taking out the core for replacement of defective parts and transportation back to the site after repairs and installing, connecting up, testing and commissioning at the site complete all as specified and directed. Notes : - (a) Transformer oil shall be drained out by the contractor in suitable capacity MS 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. (b) Rewinding of both HT & LT coils 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) Contractor is liable to repair the transformer within 20 days from the date intimation / handing over. In case of delay the contractor shall be liable to penalty of Rs. 500.00 per day. (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carriewd out with the following test and the cost of testing shall deem to be included in unit rate quoted against this item. (h) The IR value of the dried winding before inserting the core in the shell shall not be less than 750 mega ohm with 5000 volts megger and record of the same shall be maintained. (j) Painting of transformer with one coat of supper enamelled paint after cleaning the oil from transformer body shall be deemed included in unit quoted rate.

All as per Srl item No 47.00 here-in-before above, but capacity 160 KVA to 200 KVA.

All as per Srl item No 47.00 here-in-before above, but capacity 250 KVA to 500 KVA.

Supply and fixing in replacement of HT coils made out of super enameled HT copper winding wire of transformers having capacity 50 to 500 KVA all as specified and directed

All as per item No 50 here-in-before but with aluminium winding wire.

Supply and fixing in replacement of LT coils made out of super enameled LT copper strip of transformers having capacity 50 to 500 KVA all as specified and directed Note :- Coil to be replaced shall have same number of turns, gauge insulation value matching with manufacturer’s design.

All as per item No 52 here-in-before but with aluminium winding wire or strip.

Strip opening of transformer of capacity 50 to 160 KVA, 11 KV /433 volts indoor /outdoor type of any make after unscrewing nuts & bolts, screws and connected accessories such as breather, conservator tank, temp gauge etc. for replacement of defective parts such as replacement of leaking gaskets, replacement of worn out/burnt out studs, checking and cleaning of contacts of tap changer and re-assembling the transformer after replacing the defective parts/repair complete all as directed. Notes : (i) Payment of defective parts to be replaced shall be measured and paid for separately under respective item of this schedule. (ii) The cost for replacement of packing material such as top gasket, shall deem to be included in the unit rate quoted by the contractor against this item (iii) The repair/strip opening of transformers shall be carried out at site of its installation without removal of transformer from the site of installation..

All as per item 54 here-in-before but of transformer above 200 KVA to 750 KVA.

Supply only LT porcelain bushing and heat resistance gasket with brass/copper studs washer and rubber bush etc for Transformer of Cap from 50 KVA to 160 KVA.

Supply only LT porcelain bushing and heat resistance gasket with brass/copper studs washer and rubber bush etc for Transformer of Cap 200 KVA to 750KVA.

Supply only HT 11 KV porcelain bushing with brass/copper studs and gaskets and rubber bush etc for Transformer of Cap upto 750 KVA

Supply and Replace Gun metal gate valve ISI marked with Iron wheel head, screwed both ends for iron pipe or for socket or union for 25 mm bore pipe complete all as specified . Note:Draining out and refilling of transformer oil shall be deemed included in quoted rate.

Supply and Replace Explosion vent diaphram suitable size as per sample

M&L for Taking down defective/unserviceable distrubution transformers from pole mounted/rested on plateform under GE (N) Patiala after disconnecting Elect connection and shifting to E/M store yard and collect the serviceable transformer from E/M store yard and further transportation to the site for installing including electric connections, testing and restore elect supply complete. For distrubution transformer of capacity from 63 to 250 KVA capacity, within distance of 10 to 15 Km within from the AGE E&M New Cantt/old Cantt and back to directed location/place. (Complete manpower and necessary transport /T & P shall be contractors own arrangement at no extra cost) Repair shall not part of Job. Note : Shifting of transformer from one place to another place and back to directed place shall be considewred as one shift.

All as per item 61 here-in-before but of size for distribution transformer of 300 to 500 KVA capacity.

M&L for preparing old painted surface of distribution / power transformer outdoor / indoor / pole mounted of capacity 25 to 160 KVA by cleaning, removing the old paint by scratching with wire brush etc and applying two coats of synthetic enamel paint of grey colour on external surfaces of the transformer using spray machine and writing of letter HT / LT or HV / LV and SM / MES Nos, capacity of transformer and date of oil testing etc including disconnecting and making electric connections complete all as specified and as directed. Note : The compressure / spray machine and other required necessary equipment shall be arranged by the contractor and quoted rates shall be inclusive of this aspect.

All as per item 63 here-in-before but of capacity 200 to 315 KVA.

All as per item 63 here-in-before but of capacity 400 to 750 KVA.

M&L for pin pointing fault locating through vehicle mounted fault locating machine for the HT cable 11 KV of 95 to 300 sqmm 3 core and rectification of fault complete all as specified and as directed. Note: (i) Contractor will be liable to rectify the cable faults within 24 hrs from intimation of the same through e.mail / SMS. (ii) In case of failure to rectify the fault within the 24 hours from the time of intimation, contractor shall be liable for a penality of Rs. 200.00/hour.

M&L for replacement of defective GI strip 32 x 6 mm as earth continuity lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit pipe complete all as specified and directed.

Boring of holes under road, pavement, hard standing manually suitable to pass through 80 to 100 mm bore GI tubing and cable etc complete all as specified and directed.

Material and labour for servicing / testing of breaker / control panel including CT / PT and relays in control panel of VCB of capacity 630 - 800 Amps and rating 11 KV complete as details mentioned as under:- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vaccum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section etc. use grease for the operating shaft and bearings and machine oil for other parts. (iv) Check for rust and wear. (v) Check spring tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit and tighten the connections if any. (xi) Check close and trip coil. (xii) Checking of Jaw contacts Conditions and repair / adjust. (xiii) Replace the jaw contacts, if required. (xiv) Improvement of resistance of epoxyinsulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot / shock absorbers. (xvi) Replacement of carbon brush of spring charging motor. (xvii) Checking, cleaning, tightening, testing the busbars incl bus chambers, support insulator, Spouts, CT/PT etc. (b) The following test shall be carried out:- (i) Primary injection Test of CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (c) Testing of over current and earth fault relays of control panel with Secondary Injection Kit, checking and programming of relay. (d) DC supply supervision and Mastrer trip relay.

Supply and replacement of tubular type maintenance free battery 12 V, 180 AH complete all as specified and as directed.

Supply and Fix in replacement space heaters in HT VCB panels (box type / strip type) fitted in vertical or horizontal position in VCB Panels, wattage between 80 to 200 watts at 230 Volts. Note : Heater should be tested for the High voltage at 2 KV for 1 min and insulation resistance greater than 10 mega ohm.

Supply and fixing in replacement Spring charging motor with gear assembly supply 230 volts AC suitable for 630 Amp 11000 Volts VCB as per sample complete all as specified and as directed.

Supply and fixing in replacement PT fuse of capacity 11 KV suitable to fit on existing PTs in 11 KV incommer VCBs at 66 KV MRS and for Sub Stn No. 9 all as specified and as directed.

Supplying, installation, commissioning and testing in replacement of PT unit three phase, three limbs, upto 11 KV draw-out type, resin cast dry type, single ratio having primary voltage 11 KV and secondary voltage 110 volts, 50 VA class - 1 including necessary bus bar connections and wiring for metering complete all as specified and as directed.

S&F in replacement PT Bushing of capacity 11 KV suitable to fit on existing PTs in 11 KV incommer VCBs at 66 KV MRS.

S&F in replacement spout of VCB panel at 66 KV grid and Sub Stn No. 9 complete all as specified and as directed.

Supply and fix in replacement highly HT insulating opaque red coloured ANTI TRACK COMPOUND SPRAY 320 of MOSIL Lubricants that forms flexible chemical resistant coating to class H winding for electrical appratus in 500 ml spray bottles to protect HT equipments, bus bar, CTs, PTs from current leakage due to moisture complete all as specified and as directed.

Supply and fix in replacement of closing coil assembly 24 volts DC suitable for 630 / 800 amps, 11 KV HT VCB complete all as specified and as directed.

Supply and fix in replacement of Tripping coil assembly 24 volts DC suitable for 630 / 800 amps, 11 KV HT VCB complete all as specified and as directed.

Supply and fix in replacement of VCB insulator for 630 Amp VCB trolly as per manufacturer including connection complete all as specified and as directed.

Supply, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT's), indoor type, resin cast epoxy type, of 13.1 KA / Sec having ratio 200/100/5-5 Amps having Core 1: Class 5P10, 10VA for protection, Core2 : Class 0.5, 10 VA for metering including associated wiring complete all as specified and as directed.

All as per item No 81.00 above but CT ratio 200/50/5-5A.

Material & labour in replacement danger notice plate of 1.6 mm thick, mild steel sheet, 25 x 20 cm for HT poles, vitreous enamelled white with letters, figures and conventional skull and bones, in signal red colour, fixed with MS clamps, bolts and nuts of suitable size as approved complete all as directed at site.

Material and labour in replacement for stay assembly comprising of 7/3.15 galvanised stranded stay wire of required length, fixed to pole with and including FI clamps 50 x 6 mm, bolt, nut, washers, GI stay rod 20 mm dia and 1800 mm long, stay bow 400 x 14 mm, GI steel plate 300 x 300 x 6 mm, loop insulator of size 90 x 140 mm clearance hole 16 mm including two coats of aluminium paint over one coat of red oxide primer on exposed mild steel work all as shown in Electrical Plate No 1 of SSR Part - I 2009 on page No 495 complete all as specified and as directed. Note : Loop type insulator, stay clamps, excavation and concrete measured and paid seperately.

M&L in replacement for Galvanised stay strand of size 7/4 sqmm all as specified and as directed.

Testing of 66 KV assets by a competent authority ie – Power Grid Corporation of India / CPRI lab (testing to be carried only through Govt / semi – Govt body ). The equipments to be tested are as under – Transformer 66 KV / 11 KV 10/12.5 MVA and 6.3/8.0 MVA = 2 NOS (or Job) Test to be carried out for Transformer:- (i). IR / PI measurement of winding primary and secondary. (ii) Winding resistance measurement. (iii) Turn ratio measurement (iv) Magnetic balance test. (v) No Load Test. (vi) Short circuit Vector group & DC Resistance Test. (vii) Low voltage magnetization current measurement.

Testing of 66 KV assets by a competent authority ie – Power Grid Corporation of India / CPRI lab (testing to be carried only through Govt / semi – Govt body ). The equipments to be tested are as under – Testing of Transformer oil for Transformer 66 KV / 11 KV 10/12.5 MVA and 6.3/8.0 MVA = 2 NOS including both OLTC Oil and the folloowing test to be carried out:- (i). Inter facial tension. (ii) Flash point (iii) Neutralization value. (iv) Breaking Dielectric Voltage (BDV) (v) Tan delta (vi) Specific Resistance (vii) Water contents (viii) Sludge contents (ix)Dissolve Gas Analysis (D G A)

Testing of 66 KV assets by a competent authority ie – Power Grid Corporation of India / CPRI lab (testing to be carried only through Govt / semi – Govt body ). The equipments to be tested are as under – 66 KV SF-6 Breaker both 02 Nos. The folloowing test to be carried out:- (i). IR value both in open and close position. (ii) Continuity of breaker in closed position. (iii) Greasing / oiling of all the moving parts. (iv) Operation / working of charging motor and limit switch. (v) Tripping and closing time of breaker. (vi) Functioning of all the tripping system / relays displayed on the control relay panel - such as differential, o/c, earth fault, metering circuits and all other protection emanating from transformer - oil temp trip, O:TC trip, winding temp gauge trip, bucholz relay, inter trip etc, calibration of all the relays for time observed with respect to time set, complete all as specified and as directed. (vii) Greasing / oiling of all the moving parts. (viii) Operation / Working of charging motor and limit switch. Note : (i) Test sheet shall be prepared as per PS and shall be kept on record in sub division.

Testing of 11 KV assets by a competent authority ie – Power Grid Corporation of India / CPRI lab (testing to be carried only through Govt / semi – Govt body ). The equipments to be tested are as under – HT VCB/RMU 11 KV , three phase 50 Hz, 1250 amps,40 KA For 1 Second 04 Nos & HT VCB 11KV , three phase 50 Hz, 630amps,40 KA For 1 Second 09 NOs - Total =10 Nos . Following tests to be carried out on each breaker – (i). IR Value for OPEN - incoming -earth , incoming – out going -earth , for close – incoming- earth (ii)Tripping and closing time observed (iii) Operation – both manual and through motor (iv)Functioning of indications (v)Continuity (vi)Polarity test (vii)Testing of all the protection relays – ie o/c , earth fault , instantaneous , trip suspension , auxiliary relay etc (viii)Greasing /oiling of all the moving parts (ix)Operation / working of charging motor and limit switch

Servicing of 66 KV SF6 circuit breaker out door type including repair of parts, greasing and overhauling complete all as specified and as directed.

Supply and fix SF6 gas container having caspacity of 5 Kg SF6 gas, conforming to the specification of IEC 376. Container should be at a unique position and no leakage / cracks will be accepted.

PCC 1:2:4, type B-2, using 40 mm graded broken stone aggregate as in foundation filling and mass concrete complete all as specified and as directed.

Spraying chemical (Roundup) on area to remove unwanted vegitation / grass at various locations all as directed. Note : (i) Labour and equipments to spray chemical on required area are included in quoted rates. (ii) Spray will be repeated quarterly or as directed.

M&L for cable / feeder indication plate, for HT / LT 25 x 20 cm, made of 2mm thick mild steel sheet, applying with two coats of black paint over one coat of red oxide and writing, vitreous enamelled white with letters, fixed with MS clamps, bolts and nuts of suitable size as approved complete all as specified and as directed.

S&F HT cable route indicator of cast iron not less than 100 mm dia fixed through welding angle iron support of size 35mm x 35mm x 5mm thick, 50 cm long including two coats of synthetic enamel paint over a coat of red oxide primer along HT trench including embedding in ground with PCC 1:3:6 type C-1 of size 30 cm x 30 cm x 60 cm complete all as specified and as directed.

Supply and fix Galvanised iron steel wire 3.15 or 4 mm dia including stringing all as required at site complete all as specified and as directed.

M&L for scrapping and removing of old paint, cleaning and preparation of surfaces of iron angle / channel / gantry structure for 66 KV grid station, painting with 1st quality synthetic enameled aluminium paint two coats including cleaning, greasing insulators / LA / SF6 / CT / PT etc and checking loose connections complete all as specified and as directed.

M&L for transformer plinth of size 2.5 x 2.5 mtrs complete with fencing PCC foundation, RCC slab and gravel filling all around all as shown in TD-251 Sheet 1/1 complete all as specified and as directed.

M&L for Periodical cutting of trees /trimming of branches along the HT overhead lines in a girth of 03 mtrs on either side of the conductors including removing the same and dumping complete all as directed by Engr-in-Charge. Note : Expenditure for necessary tool and plants required for Periodical cutting of trees / trimming of branches along the HT / LT overhead lines are deemed to be included in rate quoted by the contractor. Note : (i) Contractor will arrange the security boards / danger boards (Men at Work) at the site so that prevent from any damage. (ii) Contractor will be liable to cut / trimming the branches within the day after of complaint received.

M & L for Dehydration of Transformer oil through on load mobile stream line transformer oil filteration plant at various site at various capacity installed at Floor /Pole and plinth mounted with all accessories connected to Transformer to carrying out filteration of oil for desired di electric strength ie not less than 60 KA at 2.5 mm Gap all as specified and as directed. Note : Contractor will submit the test report of dehydrated oil's before and after to the Engineer in Charge for records.

Supply and filling up of fresh transformer oil as in topping up/levelling up after dehydration having dielectric strength not less than 60 KV at 2.5 mm gap conforming to IS -335/1993 all as specified and as directed:

S&F otdoor type 11 KV bus bar chamber of capacity 200 Amp with on / off lever for joining 3 core HT cable with 3.15 mm thick sheet MS angle iron section 40 x 40 x6mm frame pto 60 cm, CRCA powder coated sheet metal enclosre with IP-66 protection, locking arrangement and commissioning properly by PCC complete all as specified and as directed.

Supplying and fixing including commissioning protection relay MiCOM P141-Feeder relay-40TE-Panel mounting - 8 Inputs / 7 Outputs at VCB panels, comprising of following:-

Protection Type : Overcurrent ANSI code : 50 / 51 Breaker failure Cold load pick-up Earth fault ANSI code :50G / 51G Directional earth fault Lockout ANSI code : 86 Negative sequence overvoltage ANSI code : 47 Under voltage ANSI code : 27 Overvoltage ANSI code : 59 Directional phase overcurrent Rate of change of frequency ANSI code : 81R Neutral voltage displacement ANSIcode : 59N Thermal overload protection ANSI code49RMS Under frequency ANSI code : 81L Over frequency Phase undercurrent ANSI code 37 Earth fault watt metric Restricted earth fault Voltage - restrained overcurrent.

Number of inputs : 3 voltage, 8 discrete, 5 current input CT...X/5 A and X/1A

Number of inputs : 7 discrete

Communication port protocol : IEC 61850 DNP3 (Modbus RTU) Ethernet IEC 60870-5-103

Auxiliary Supply : 24….48 V DC 19…65V 48…110 V DC 37… 150V 40... 100 V AC 32 ... 110 V 110...250 V DC 87...300 V 100...240 V AC 80... 265 V

Control and monitoring type : Circuit breaker / contactor control. Network and machine diagnosis type : Fault recording. Event recording Disturbance recording 75 s Switchgear diagnosis type : Trip circuit supervision. Discrete input voltage 24...27 V DC universal programmable voltage thresholds 30... 34 V DC universal programmable voltage thresholds. 48... 54 V DC universal programmable voltage thresholds 110... 125 V DC universal programmable voltage thresholds 220... 250 V DC universal programmable voltage thresholds Communication port support RS232 RS485 Fibre Optic Dimensions Height 177 mm total , 157.5 mm embedded, Width 206 mm , Depth 270 mm total 240mm embedded Mounting Support Panel Mouinting mode Panel mounted.

R D Bansal

Raman Electric Trading Co