REPAIR REPLACEMENT AND MAINTENANCE OF DISTRIBUTION TRANSFORMERS HT SWITCH GEARS AND LT CABLES NETWORK SYSTEM WITH CONNECTED ITEMS AT POCKET NO 11 UNDER GE U ELECT SUPPLY DELHI CANTT

Amount

Dismantling broken concrete/steel poles, any size complete all as directed by Engr-in-charge

Removing/taking down of existing street light/bracket from item No 1 above and fixing on new poles complete all as directed by Engr-in-charge

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft loose soil for laying / taking up/ taking down of cables and getting out and levelling of bottom suface to required level all as specified and directed by Engineer- in- Charge.

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

Removing excavated material (ie soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point all as specified and directed by Engineer-in-Charge.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified.

S&F sub class B bricks having minimum compressive strength 75 Kg/ Sqcm laid in trenches for cable protection etc complete all as directed by Engineer-in-Charge.

All as per srl item No 07 here-in-before but using old bricks obtained under srl item No 03 here in before.

M&L for Demolition of road, path, drain and concrete in ground floors, RCC/Brick wall (below or above ground level) complete all as specified and as directed.

M&L for providing cement concrete 1:2:4 type B-2 (using 40 mm grade crushed stone aggregate) 250 mm Thick complete all as specified and as directed by Engr in charge.

M&L for Laminated paper sticker of size 250 mm x 8 mm in silver colour and printing of feeder name/CT ratio etc as provided by AGE (U) E/S No - 1 in black colour and pasting the same on HT/LT panels panels completeall as specified and directed. Note :- Each stickershall have different printing matter.

Supplying, laying, jointing testing and connecting in replacement XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, IS 7098 marked, suitable for LT 1100 Volt system, laid in trenches fixed to pole, including jointing & testing complete all as specified and directed of following sizes:- Note :- Excavation, earth work ,cable protection , sand fillings , cable joint shall be measured and paid separately under respective items of schedule.

10 Sqmm 4 core

16 Sqmm 4 core

25 Sqmm 4 core

35 Sq mm 3.5 core.

50 Sq mm 3.5 core.

70 Sqmm 3.5 core

95 Sqmm 3.5 core

120 Sqmm 3.5 core

185 Sqmm 3.5 core

240 Sqmm 3.5 core

300 Sqmm 3.5 core

Boring of hole under road/pavement/hard standing or any other situation by mannual means and suitable for passing of GI pipe 40 to 100 mm bore and making good both ends all specified and directed

S&F in replacement GI Pipe (light grade) with necessary accessories/ fittings for cable protections/pole for crossing of culverts/nallah of following bore sizes

Taking out faulty underground 1100 Volt LT cable of different sizes by excavation and removing bricks of any size and relaying in the same trenches or re routing after rectification of fault or replacing faulty portion of cable with new cable and removing of surplus soil and using new bricks as required. Note: (a) 1100 Volt LT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable bricks will be laid in trenches for cable protection. If extra bricks and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

Supply & installing steel tubular swaged poles type 410 SP-31 (9 mtr long) of approx wt.147 kg conforming to IS 2713 (Part-II) including excavation, earth work, PCC foundation, base plate,PCC coping,GI pipe for cable protection etc. and GI bracket for fitting mounting, complete all as per manufacturer's instructions and as specified and as directed by E-in-charge. NOTE:- The unit rate in this item is deemed to be included the cost of exacavation and earth work in any type of soil,PCC foundation 1:4:8 type D-2 , PCC coping 1:2:4 type B-1 as in steel tubular pole and GI bracket made of GI pipe medium grade 40 mm bore, 1.5 mtr long for fixing of street light fitings . The steel pole shall be painted by bituminious paint total length inside and up to planting depth outside and remaining portion of pole painted with two coat of aluminium paint over a coat of red oxide complete all as specified and directed.

Earthing in replacement complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.1 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized lead wire 4mm dia by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I-2009 , connected to earth test point and the equipment on the other nuts and washers of galvanised ironside complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 15 mm bore GI pipe light grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode.

Supply & Fixing in replacement bracket for street light fitting complete with 1.5 to 2.2 mtr long 32/40mm dia GI pipe medium grade and including necessary mild steel clamp , nuts,bolts and wahsers and painting on steel surfaces with two coats of aluminium paint complete as as specified and directed.

Material and labour disconnecting faulty /burnt end or portion of cable by removing the cable from loop including necessary excavation & earth work , suitable size of thimble LT tap , relaying and reconnecting the cable by removing faulty/burnt portion of cable and preparing fresh terminals for 25 Sqmm 3.5/4 core to 240 Sqmm 3.5 core of LT cable to LT Panel/pole/main switch complete all as directed.

S&F in replacement KIOSK box wheather proof including made out of one piece mounted SMC base and door pole mounted hinged door size 333x233x120mm out side and 300x200x105mm inside dimensions comprising of aluminium bus bar 4 strips for 3 phase and neutral 63 Amps including embossing/painting of danger notice of size not less than 10cm x 7.5cm with letters, figures and conventional skull and bones in signal red colour on front face of KIOSK box body complete all as specified and directed.Incluiding MS clamp of size 25x3 mm with suitable size nut,bolts & washer.

M&L for re-painting of LT Steel tubular poles of any sizes with apply of 2 coats of aluminium paint including rubbing with wire brush/emery paper & writing pole Nos in appropriate size of letters including making yellow and black strips upto height of 1.5 mtr above from ground level complete all as specified and directed.

Supply and fix in replacement MCCB 125 Amp, 4 pole , 25 KA, 50 Hz including MCCB sheet metal enclosure mounted on wall with fastner and suitable size of nut and bolts complete all as directed .

Supply and fix in replacement MCCB 63 Amp, 4 pole , 25 KA, 50 Hz including MCCB sheet metal enclosure mounted on wall with fastner and suitable size of nut and bolts complete all as directed .

Supply and fix in replacement outdoor type wall mounted Busbar chamber having 04 pole busbar of rating 200 amps fitted with MCCB 100 Amp, 4 pole , 25 KA, 50 Hz as incomer incuding suitable hole in bus bar for outgoing cable connection including suitable size nut bolt and fasyner complete all as directed at site by Engr -in-charge.

Supply, installing, testing and commissioning in replacement of factory made and tested Bus bar chamber outdoor type with canopy made out of 3.15 mm CRCA MS sheet, and 40x40x5mm thick MS angle iron frame work, powder coated finish over one coat of red oxide primer on outside surface and painted inside with two coats of red oxide primer, front opening type, with apron for cable entry closing locking arrangement of size not less than 400mm x 400mm x 300mm with 4 Nos 400 Amps aluminium bus bar and with 250 Amp MCCB, 4 pole, 25 KA, 415 Volt 50 Hz including excavation, earth work and platform for the Bus bar chamber with PCC 1:4:8 type D-2 with 40 mm graded stone aggregate, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded sotne aggregate on top and grouting bolts etc for Bus bar chamber. The platform shall be such that it is of a height 45 cm above the nearest road level.

M&L in replacement of Antistatic flooring of thickness 2.5mm thick of standard width and roll length conferming to 5TEC-7 pamplet Electrostatic decreease less than 0.5 sec and fixing with adhesive SR 998 Comp strip of grid 1m x 1 m size 01 inch x 50 microne complete all as specified and directed.thickness.

Supply in replacement and Installation of LT CT operated Trivector Meter with the following specifications:- (a) Meter Type: LT 3 Phase 4 Wire Electronic Tri vector Meter (b) Standard: IS 13779:1999 / CBIP 88 (c) Accuracy: Class 0.5 (d) Voltage and Current rating:- (i) Reference Voltage - 3x240 V (ii) Basic Current (Ib) - 5 A (iii) Maximum continuous current (Imax) - 10 A (e) Rated Frequency (variation) - 50Hz (±5%) (f) Power consumption:- (i) Voltage circuit: Less than 1.5 W and 10 VA per Phase at reference voltage, reference temperature and reference frequency (ii) Current circuit: Less than 1 VA per phase at basic current, reference frequency and reference temperature (g) Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height (h) Display in the event of Power Failure: Internal battery back-up for LCD display (j)Communication port: (i) Galvanically isolated Optical Communication port for data transfer through either CMRI or remote device or both is provided (ii) RS 485 for DLMS protocol (iii) Energy recording - Unidirectional

Supply drawing, connecting and testing of 3 core, 1.5 Sqmm PVC insulated and PVC round sheathed copper conductor (flexible ) industurial cable, 1100 Volts conforming to IS 694 in steel tubular poles from KIOSK box to street light fitting including providing suitable copper lugs all as specified and directed by Engr-in-charge.

Material and labour for carrying out balance distribution of load on LT Lines by checking the existing load on the feeder (3 phase,4wire system) and accordingly shifting & connecting service cables to another phase conductor in accordance with balancing of Electric load. submit feeder wise report for before load balancing and after load balancing as per format given including maintenance of LT panel i.e. titning of all nuts, bolts, washers, clening of LT panel dust etc complete all as specified and directed by Engr-in-Charge.

Preparation of old painted surfaces of LT PCC poles for cross arms, MS strap, nuts, bolts, washers, cable protection pipe wherever provided etc and painting with one coat of aluminium paint and painting of bottom area of pole upto 2.1 m from ground level with synthetic enamel paint in alternate layer (30 cm wide) with black and yellow paint including writing pole numbers in white letter of approved size on black ground complete all as specified and directed.

supply & installing prestressed concret poles (9 mtr long) 102mm x 172mm at top and 102mm x 279mm at bottom (class 10) including excavation, earth work, PCC foundation, base plate,PCC coping,GI pipe for cable protection etc. and GI bracket for fitting mounting, complete all as per manufacturer's instructions and as specified and as directed by E-in-charge. NOTE:- The unit rate in this item is deemed to be included the cost of exacavation and earth work in any type of soil,PCC foundation 1:4:8 type D-2 , PCC coping 1:2:4 type B-1 as in concrete pole and GI bracket made of GI pipe medium grade 40 mm bore, 1.5 mtr long for fixing of street light fitings . PCC poles for cross arms, MS strap, nuts, bolts, washers, cable protection pipe wherever provided etc and painting with one coat of aluminium paint and painting of bottom area of pole upto 1.5 m from ground level with synthetic enamel paint in alternate layer (30 cm wide) with black and yellow paint including writing pole numbers in white letter of approved size on black ground complete all as specified and directed.

S&F in replacement of Power pack rating 110 Volt/7 AH, input voltage 230 Volt AC single phase, output voltage 110 Volt with Battery suitable for existing VCB complete all as specified and directed.

Supplying and fixing in replacement Potential Transformers, Draw-out type in existing HV panel for easy maintenance, 11kV/rt3:110V/rt3, 50VA, Cl.0.5 with associated gun-type HRC fuses and MCBs for HT/LT isolation

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 25.0 KA/Sec having ratio 300/150/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

All as per item No 34 here-in-before but having ratio 150/75/5-5 Amps.

All as per item No 34 here-in-before but having ratio 100/50/5-5 Amps.

Material and labour for servicing /testing of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 800/630/400 Amps and rating 11 KV complete as details mentioned as under:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum 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 & tighten the connections if any. (xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers . (xvi) Replacement of carbon brush of spring charging motor (xvii) Flash cleaning of complete bus bar with CRC

(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. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :- (i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay. (ii) Master trip relay

Supply installation & commissioning in replacement of 24V/40A Float Cum Boost Battery Charger unit including battery bank comprising 02 Nos of 12 Volts-100 AH sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:-

(a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided.

S&F in replacement of LED indication lamp for breaker ON/OFF/TRIP/Breaker Spring Charged/R-Y-B etc for 11 KV control panel including associated wiring, if reqd, complete all as specified and directed.

Supply and installation in replacement Anti-condensation space-heater withThermostatic control in cable and circuit breaker compartments of HT switchgears complete all as specified and directed.

S&F in replacement of vacuum interrupter suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of isolating contact assembly suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of fixed contact block complete suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of moving contact block complete suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of motor & gear assembly 230V AC suitable for 400/630 amps, 11 KV HT VCB including testing & puting on load complete all as specified & directed.

S&F in replacement of spring bearing gear suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of closing coil assembly 24 volts DC suitable for 400/630amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of tripping coil assembly 24 volts DC suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement close/trip coil 24V DC for 11 KV HT VCB of capacity 400/630 Amps capacity all as specified and directed.

S&F in replacement of panel door lock suitable for 400/630amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement auxillary switch (7 No + 7NC) suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement T&C Switch for Breaker ON/OFF purpose in HT 11 KV VCB panel including associated wiring, if reqd, for proper functioning of switch complete all as specified and directed.

Supplying & Fixing in replacement support rod with screws suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement support insulator suitable for 630 to1200 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement upper connector suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement lower connector suitable for 400/630 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of HRC fuse of capacity 20 Amps for VCB complete all as specified and directed

Supplying & Fixing in replacement of spouch insulator suitable for 630 to 1200 amps, 11 KV HT VCB complete all as specified and directed

Disconnecting electric outdoor/indoor transformer 11 KV capacity upto 630 KVA from HT/LT terminals and lowering down/getting out from 2/4 pole structure/plinth or from inside sub station for major/Minor repair complete all as specified and directed .

Materail and Labour for draining out complete transformer oil from transformer upto 1500 KVA capacity at site for major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination by Board of Officers and lowering/fixing of core assembly in its original position after inspection to make it ready for transportation to workshop. (transportation charges will paid separaterly against item No. 63)

Transportation of unserviceable transformer of upto 630 KVA capacity to workshop and return back for installation it on original position/location after repairing from workshop Note : (Rate is deemed to be inclusive of transportation, T&P and man power)complete all as specified and directed .

M&L for shifting of serviceable transformer upto 630 KVA from MES store Yard/Sub Stn(indoor/outdoor) for installation in place of unserviceable transformer and back after replacing with repaired transformer

Material and labour factory opening of top cover by unscrewing nut, bolts & washers etc and taking out core assembly from tank by disconnecting from tap changer HT & LT side bushing stud to outside by dismantling the channel and disconnecting star delta connection for transformer up to 630 KVA capacity. After dismantling of Transformer and physical joint inspection of core coil assembly (removing all 3 limbs HV &LV winding from Core Assembly) washing of core assembly by hot oil for removing brunt carbon and copper particals and cleaning of complete top yoke by oil. reassemble of complete core assembly and core coil assembly providing new coils and new tap leads of tap changer including requisite insulation material. Re Tanking tightening of top cover fixing of HV & LV Bushing, tap changer connection, WTI & OTI Connection and CT connection. Filling of oil, conservatior tank ready for final testing all as directed in presence of rep of MES Note : Coil and insulation shall be measured and paid separately.

Material and Labour in repairs for rewinding of HT coils with copper wire DPC/super enameled high quality matching with existing gauge and impedence including requisite insulating paper/material in each layer of winding after taking down old existing winding of HT coils of 11 KV trasformer complete. Note : (i) The rate quoted against these items is inclusive necessary provision of all types of insulating materials , heating and varnishing etc.

All as per item No 66 here-in-before but LT coils with copper strips.

Material and Labour for drying/ovening of complete Core coil assembly(CCA) in vacume chamber and continous monitering to improve of IR Values after varnishing the coil to eliminate moisture content from Transformer up to 1500 KVA capacity complete .

Material and Labour after drying and ovening and Re-assembling of up to 1500 KVA Transformer core, tesing of magnetic circuit for IR values, assembly and connection of OLTC of all phases, testing of transformer at low voltage, checking of ratio and polarity test. all as specified and directed. Note: (i) These operations/tests shall be carried out in the factory,results found satisfactory before bringing transformer to the original site for re-installation. (ii) The quoted rates shall be deemed to include complete testing before and after repairs, as per IS-2026, Megger Ratio, LV&HV High Voltage Test, DVDF and vector Group Test and Leagae/Pressure Testing at 0.35 Kg for 24 Hrs to check the healthiness of the transformer, No load test, Full load Test, Impedance test, Voltage/Short Ckt impedance test.

Supply and fixing in renewal of transformer bushing on LT 433 volt side including brass stems /rods conical bush and gasket suitable for indoor/outdoor transformer capacity up to 630 KVA complete all as specified and directed .

All as per item No 70 here-in-before but HT 11 KV side.

S&F in renewal of silica gel of breather assembly with vent pipe and new silica gel for indoor/outdoor transformer of the capacity up to 630 KVA complete all as specified and directed.

Material and Labour for ON load centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine electric operated without any shutdown of transformer including testing oil sample before and after dehydration and filteration oil complete all as specified and directed . Note : (i) Transformer oil required for top up shall be measured and paid for separate (ii) Contractor have to arrange the dehydration machine and testing kit from his own resources without any extra cost

Supply and filling/ toping up of transformer oil in transformers ,having dielectric strength not less than 45 KV (at 2.5 mm gap) high voltage as per IS specification of low viscosity complete all as specified and directed .

Supply and fill in replacement silica gel in transformer complete all as directed.

Painting of transformer after preparation of old painted surfaces of steel, by brushing/cleaning stain, greasy spots with thinner, applying two coats of spray painting with PU paint with spraying machine to transformer indoor/outdoor, fixed on poles or in Sub Station at different location after disconnecting of HT supply from incoming and LT supply from outgoing capacity 63 KVA to 630 KVA complete all as specified and directed .

M & L for cutting and removing grass, vegetation bushes etc from surrounding 4 pole/6 pole HT structure , outside area of HT installation and removing all rubbish to a distance not exceeding 50 m as directed.

M&L for Brick Masonry ( Using sub class 'B' Brick) platform of size 2m x 2m x 1 m height , built in CM 1:4 complete with excavation & earth work , PCC 1:4:8 type D-2 in foundation , sub class 'B' brick work in CM 1:, 15 mm thick rendering in CM 1:6 on sides and top of the brick work , upto 150 mm below ground level , supply and fixing of 02 Nos MS Channels of suitable size for balancing of Transformer embedded in PCC 1:2:4 type B-1 up to 100 mm Thick RCC 1:3:6 with 10 mm dia TMT includding 20 mm graded aggregate , including provn of stair case on one side complete all as specified and directed .

M&L for perimeter fencing of size 25m x 18m x 2m (as per site condition) having MS work of angle iron for post and struts of fencing around the transformer plinth/substation/LT panels etc drilling holes flat iron fillet for securing wire mess by welding to angle iron frame and framed work as in door/gate of angle iron and wiremesh.Door to be fixed by 03 nos 100mm long hinges and one sliding door bolt of 300mm long for locking arrangement. Details are as follows:- (a)Angle iron post to post distance maintained not more than 03mtr ,size of angle shall be 50x50x6mm.Angle Iron shall be embedded in natural ground not less than 0.90 m deep. (b)Ms wire 75x75mm mesh 4mm dia ,2mtr height and shall be fixed to post with flat iron 32 x 6 mm fillet with two coats of synthetic enemel paint over a coat of red oxide primer. (c)Cement concrete type D-2 ,1:4:8 using grade crushed stone aggreagte for mass concrete/ foundation. (d)Brickwork with subclass 'B ' bricks ,straights or curved on plane exc 6m mean radius ,built in cement mortar 1:6 complete for toe wall along the perimetre fencing.The toe wall shall be one brick thick,30cm high (15cm above GL and 15cm below GL) on 75mm thick PCC lean concrete. (e) The exposed surfaces of brickwork shall be rendered 15mm thick in CM (1:4) finished fair and even without using extra cement. (f) The steel gate shall be of size 1.00m x2.00 m fabricated from angle iron 40x40x5 mm frame and 25x25 mm square guard bars. (g) All the exposed surfaces of steel shall be painted with two coats of Synthetic enamel paint over one coat of Red Oxide Primer. (h) Necessary excavation and eathwork shall be included in the quoted rate.

M&L for perimeter fencing of size 8m x 8m x 2m (as per site condition) having angle iron post 2 m height for parameter fencing of Transformer / Sub stn including chain link fencing fixed to angle iron/pipe including excavation , earth work , brick work , surface excavation and PCC 1:2:4btype C-2 and Necessary steel gate of angle iron of size 40 x 40 x 5 mm of size 01 m x 2 m including locking arrengment having square bar of size 25 x 25 x 3 mm with two coat of synthetic enamel paint over a coat of red oxide primer to all steel surfaces complete all as directed .

Disconnecting electrically (and mechanically, ) outdoor transforemrs upto 400 KVA capacity, lowering down from 4 pole structure/Existing plinth to new plinth carefully and Re-installation of transformer on plinth , connecting electrically and mechanically, testing and commissioning complete all as specified and directed.( Rate is deemed to be inclusive of , T&P and man power ) complete all as specified and directed.

Testing the cables with high voltage DC testing machine and locating the fault in the cables by fault locating machine to pin point exact position of fault, disconnecting faulty HT/ LT cables of different sizes from both ends, removal of Fault, Re-connections and testing of ables after removal of fault complete all as specified and directed. Note: (a) LT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable cable cover will be laid in trenches for cable protection. If extra PCC cover and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

Supply, fixing and testing straight through joint heat shrinkable type with jointing kit suitable for cable PVC/XLPE insulated armoured heavy duty aluminium conductor 1100 Volts grade complete all as directed for the following sizes :-

16-50 Sqmm x 3.5 core/ 4 core

70-185 Sqmm x 3.5 core

240-400 Sqmm x 3.5 core

NOTE :-(i)contractor should provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge.

mayur enterprises

Vijay Electricals

M P TYAGI ENGINEERS AND CONTRACTORS

Buddham Builders