REPAIR AND MAINTENANCE OF HT CABLE INCLUDING JOINTS, TRANSFORMER/RMU PLINTHS, FENCING, HT BUS BAR CHAMBER CONNECTED ITEMS AT ARJAN VIHAR, NEW PRATAP CHOWK, PRATAP CHOWK, ASSU, AHPU AND RRRC AEPTA AND AJDOINING AREA OF AGE (U) ELECT SUPPLY NO II UND

Amount

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.

Supplying and laying un-reinforced precast concrete cable cover, class HV, type 1, flat size 300mmx 180mm x 40mm.

All as per srl item No 5 here-in-before but using old cable cover obtained under srl item No 1 here in before.

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, 11 KV grade, IS 7098 marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole, including jointing & testing complete all as specified and directed of following sizes :-

95 sqmm 3 core.

120 sqmm 3 core.

150 Sqmm 3 Core

185 sqmm 3 core

240 sqmm 3 core

300 sqmm 3 core

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.6 mpa working pressure

Boring of hole under road/pavement/hard standing or any other situation by mannual means and suitable for passing of GI pipe 100 to 150 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

Supply and fix 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 XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix 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 XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Supply and fix 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 XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm 3 core

Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 2.10 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized iron strip 32 x 6mm 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, 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 40 mm bore GI pipe medium 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.

M&L in replacement 32x6mm galvanised iron strip for earth continuity conductor for earthing of transformer , GOD , 4/6 pole , structure etc complete all as directed at site.

Material & Labour for replacement of jumper/bus bar made of ACSR conductor of existing size on HT Two/Four pole structure having 2/4 incoming/outoing feeder including bus bar with PVC sleeve , lugs , nut bolts and washers complete all as 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.

Suplying and laying as replacement in sub station fixing 3.3 to 11 KV electrical insulation mat of size 5 mtr x 1 mtr x 2.5 mm thick specification.

Supplying and fixing in replacement LED flood light fitting of following size complete all as specified and directed by Engr-in-charge :-

S&F in replacement ACB 4 pole, 800 Amp, 50 KA, 415 Volt AC Horizontal draw out type , front operated with Micro processor based LCD protection release for adjustable over current, short circuit and earth fault protection

Supply installation & commissioning in replacement of 12 Volts-100 AH sealed maintenance free battery in battery charger with suitable size of new copper battery terminal and lugs and initially charging commissioning and testing complete all as specified and directed by Engr-in-charge.

Disconnecting electrically & mechanically outdoor transforemrs upto 630 KVA capacity, lowering down/getting out from plinth carefully for repairing /making of plinth of transformer and re- connecting electrically and mechanically after repairing/making of plinth , testing and commissioning complete all as specified and directed. Note:- (a) Rate is deemed to be inclusive for hydra , men power, and other items required for temp energization of transformer. (b) M&L used to repair the Plinth shall be measured and paid separetely under items of sch of work here-in -after.

M&L brick masonry platform (suitable for 100 to 630 KVA transformer) having size 2.5 mtr x 2.5 mtr and total height 1.6 M (0.45 M below ground level including excavation and earth work, 1.15M above ground level including RCC slab 150 mm on top and refilling of sand/soil), PCC 1:4:8 type D-2 in foundation, sub class 'B' brick work in CM 1:4, 15mm thick rendering in CM 1:6 on all sides of platform 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 150mm thick RCC slab, including provn of stair case on one side complete all as specified and directed.

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

S&F in replacement of MS work of angles for post and struts of fencing around RMU/Transformer etc drilling holes, flat iron ,fillet for securing wire mess by welding to angle iron frame and framed work as in gate of angle and wire mess . Door to be fixed by 03 Nos 100mm long hinges and one sliding door bolt of 300mm long for locking arrangement and MS channel for plinth of transformer complete all as specifed and directed.

S&F in replacement 3.15mm dia MS wire 75x75mm mesh , made up into mattress or cages appx 2.00 mtr height and fixed with flate iron /angle by welding in position complete all as specified directed .

S&F in replacement of UNSV /Burnt MCCBs of capacity 630 Amps, FP, 50 KA, 415 Volts 50 Hz, AC, with microprocessor release fixed in any type of existing LT panel/Feeder piller including taking out old existing unserviceable MCCB from panels etc complete all as specified and directed.

Material & Labour for painting of transformer installed on plinth/4/6 pole structures at various site of capacity upto 630 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SM No, MES and capacity of transformer complete all as specified and directed.

M & L for 2 coat of synthetic enamel painting over a coat of red oxide to MS wire fencing including preparation of old surface complete all as specified.

Material and labour in replacement Retro Reflective installation sign boards of size 5 feet x 4 feet fabricated out of 16 gauge MS sheet frame duly welded/riveted with MS square pipe of size 25mm x25mm at height 2.00 meter above ground level on stainless steel heavy duty pipe of size 50mm bore embaded 60 CM in PCC 1:2:4 type B 1 block of size 45cmx45cmx60cm including necessary excavation and earth work .The steel portion of the board shall be painted in stove enameled paint and the front & back of the frame shall be overall sheathed with blue colour base painter adhesive tape. The wiriting matter will be in English language on both sides with reflective adhesive painter tapes as directed by Engineer -in-charge.

S&F in replacement for Danger Notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white , with letters, figures and conventional skull and bobes in signal red colour and fixed with MS clamps, bolts and nuts of approved size, for HT, 25x20 cm size including taking down old one complete all as specified and directed.

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. Make of battery charger. Statcon/Sinetrac/Amar Raja Make of batteries. Exide/Amaron/Okaya

Taking out faulty underground 11000 Volt HT cable of different sizes by excavation and removing PCC cover 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) 11000 Volt HT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable PCC cable cover 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 and fixing mild steel chequered plates Fe410-10-W(Gde-E-250) qualityon cable pit sizes as required on site 6mm to 10mm thick including taking out old unsv RCC duct cover complete all as specified and directed.

Note : contractor should procure and 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

MV Engineers And Contractors

M P TYAGI ENGINEERS AND CONTRACTORS

M/s JAIMAA ASSOCIATES

Bee Kay Engineers & Contractors

Rajindera Enterprises

mayur enterprises

DS CONSTRUCTION

Vijay Electricals