REPAIR /MAINTANANCE AND REPLACEMENT OF LT CABLE/ LT DISTRIBUTION SYSTEM, BUS BAR CHAMBER, POLE BOX, POLE PAINTING, EARTHING AND CONNECTED ITEMS AT CVD, PIRU VIHAR, DIPAC, HQ TG EME, VIKRAM BATRA VIHAR, CMP LINE, CHITRAL LINE, BASANTAR LINE, EME UNIT

Amount

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 m deep in soft/loose soil) for laying of cables or GI pipe and getting out including levelling of bottom suface to required level complete all as specified and directed

All as per Serial item No 1.00 here in before but depth exceeding 1.5 mtr and not exceeding 3.00 mtr.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables and in substation ducts for cushioning of cables etc, complete all as specified. (Measurement should be after punning down)

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

Laying only old bricks retrived from Sr Item No 1.00 here in before complete all as specified and directed

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 m away and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed

Material & labour for PCC 1:4:8 type D-2 using 40 mm graded stone aggregate . in mass concrete and filling complete for foundation of pad of pole all as specified & directed by Enge-in- Charge

Material & labour for PCC 1:3:6 type C-1 using 20 mm graded stone aggregate . in mass concrete and filling complete for foundation of Panel & Transformer yeard, pole/stay/ of pole all as specified & directed by Enge-in- Charge

Material & labour for PCC 1:2:4 type B-1 using 20 mm graded stone aggregate iincluding breaking old existing coping and like including weather slightly rounded or chamfered angles and throaty and necessary form work complete for pole ,all as specified and directed by Engr-in-charge.

Material and labour for Demolition of path /concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and as directed.

Material and labour for Cement Concrete type B-2 mix, 1:2:4 (40mm stone graded aggregate) 150mm thick, finishing the top surfaces fair and even complete all as specified and as directed.

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

Supply and lay GI pipe light grade in replacement as cable protection laid on trench/floor, fixed on pole/wall etc of size 100 mm dia.

All as per item No 14.0 here in before but of size 80 mm dia

All as per item No 14.0 here in before but of size 50 mm dia

All as per item No 14.0 here in before but of size 40 mm dia

Supply, laying, jointing, testing and commissioning in replacement of LT underground cables of size 25 Sqmm 4 core, 1100 volts grade, PVC insulated XLPE and PVC sheathed, heavy duty armoured, with multistranded aluminium conductors, IS-7098, Part-II marked, laid in trenches/ duct/ under road/ footpath/ etc or against re-routing / diversion from residential buildings/ road/ footpath etc complete all as specified and directed by Engr In Charge.

All as per srl item No 18.0 here-in-before but of size 35 Sqmm 3.5 core .

All as per srl item No 18.0 here-in-before but of size 50 Sq mm 3.5 core.

All as per srl item No 18.0 here-in-before but of size 70 Sq mm 3.5 core.

All as per srl item No 18.0 here-in-before but of size 95 Sqmm 3.5 core .

All as per srl item No 18.0 here-in-before but of size 120 Sqmm 3.5 core.

All as per srl item No 18.0 here-in-before but of size 150 Sqmm 3.5 core.

All as per srl item No 18.0 here-in-before but of size 185 Sqmm 3.5 core.

All as per srl item No 18.0 here-in-before but of size 240 Sqmm 3.5 core .

All as per srl item No 18.0 here-in-before but of size 300 Sqmm 3.5 core .

All as per srl item No 18.0 here-in-before but of size 400 Sqmm 3.5 core .

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 size 25 to 50 Sqmm x 3.5 core/ 4 core

All as per item No 29.0 here in before but size 70 to 150 Sqmm x 3.5 core

All as per item No 29.0 here in before but size 185 to 240 Sqmm x 3.5 core

Supply and Installation of LT CT operated Trivector Meter in replacement with the following specifications: Meter Type: LT 3 Phase 4 Wire Electronic Tri vector Meter, Standard: IS 13779:1999 / CBIP 88, Accuracy: Class 1.0, Voltage and Current rating: (i) Reference Voltage - 415V for LT Meter, (ii) Basic Current (Ib) - 5 A, Maximum continuous current (Imax) - 10 A, Rated Frequency (variation) - 50Hz (±5%), 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, Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height Display in the event of Power Failure: Internal battery back-up for LCD display, 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, Energy recording - Unidirectional, Instantaneous parameters (30 Min) - Each Phase Current, Each Phase Voltage, Each Phase Power, Each Phase Power Factor, Each Phase Reactive Power, Power, Power Factor, Apparent Power, Reactive Power, Frequency, Load survey (30 Min) parameters - Energy, Apparent Energy, Daily Survey: Cumulative Energy, Cumulative Apparent Energy.

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 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.

Material and Labour for disconnecting burnt end or burnt portion of cable, removing the cable from loop with and including necessary excavation & earth work, relaying and re-connecting the cable by removing burnt portion of cable and preparing fresh terminals including fixing of new lugs for 50 Sqmm 3½ / 4 to 400 Sqmm of LT cable at Poles/Main switch etc complete all as specified and directed.

Dismantling the existing unserviceable (damaged/broken) PCC electric pole of any type and size, from ground after necessary excavation & breaking of concrete foundation & encasing the pole including making good the disturbed surfaces complete all as specified and directed.

Supplying & Erecting Steel Tubular Pole 410 SP-31 (9 metres long) complete with cast iron base plate all as specified in IS 2713 of 1980 (Part I & II) including painting of Poles with one coat of red oxide primer and one coat of aluminum paint before fixing and one coat of aluminum paint after fixing. The complete embedded portion shall be painted with two coats of black bituminus paint. (Note:- The necessary earth work and PCC work will be measured and paid separately under respective items.)

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 & fixing in replacement KIOSK Box weather proof made up of one piece mounted on SMC base and door pole mounted hinged door of size 333 x233x 120 mm outside and 300 x 200 x105 mm inside dimension comprising of aluminum bus bar 4 strips for 3 phase and neutral 63 Amp and 6 Amp fuse grip with base for controlling the steet light fitting and FL clamps 30x4mm with necessary MS nuts bolts and washers and including applying two coasts of synthetic enamel paint over a coat of red oxide zinc chrome primer on new steel surface and including embassing/painting of Danger notice of size not less than 10 cm 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 directed.

Earthing complete in replacement with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground (Earth pit not less than 3.5 meter deep below ground level) with top edge of plate not less than 2.5 meter below normal ground level, connected with and including galvanised iron earth strip 32 X 6mm by means of nuts, bolts, check nuts and washers of galvanised iron or steel and provisions of charcoal dust and common salt packed all around the earth plate and testing on completion complete all as specified, directed and shown in Electrical Plate number 3 of MES SSR Part-I NOTES : The quoted rates shall be deemed to include the cost of (a) Excavation and earth work in any type of Soil. (b) PCC pit in cement concrete 1:3:6 mix, type B-1, Pre cast RCC cover with suitable handle, 40 mm thick in RCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than1.87 Kg/Sq metre. (c) Funnel with watering pipe of GI 20 mm nominal bore light grade and lugs etc (d) 40 mm nominal bore medium grade GI protection pipe 7.50 m long for protection of earthing lead (e) Requisite quantity of common salt and charcoal in alternate layers completely packed as directed. (f) Testing of earthing on completion.

Supplying and fixing in replacement of factory made and tested, Bus bar chamber, outdoor pedestal type, suitable for LT 415 volts 3 phase 4 wire, 50 Hz , AC supply system, having duly insulated four Nos aluminum bus bars (having Multiple holes), of rating 800 Amps , installed on epoxy / SMC type insulator The panel shall be dust and vermin proof, IP-65 Protection class and made of 3.15 mm CRCA MS sheet and 40x40x5mm thick angle iron base frame work, suitable for connection of multiple LT cables of diff size, powder coated finish over one coat of red oxide primer outside and two coats of red oxide primer on inside, both side opening type, with aprons for cable entry, with double door shutter and locking arrangement of minimum size 75 cm x 60cm x 45 cm ( box size excluding legs) and mounted on angle iron pedstal 45 cms above groungd level all as specified including taking out old feeder pillar and taking out LT cable from loop for connecting in new panel and necessary excavation etc incl necessary PCC work for foundation as directed.

Note :- (i) All incoming and outgoing feeder shall be connected by cable through suitable size glands & thimbles. (ii) Costruction of Foundation & taking out of the old connected cables and reconnection of the same with new thimbles, gland of suitable size are deemed to the above quoted rate. (iii) The feeder piller should have louvers & air vent gasket for natural flow of air. (iv) The bottom of the outer shell contains a detachable plate having provn of entry of armoured cable of adequate size with glands. (v) Danger plate should be fixed on both side of the panel.

Supplying and fixing in replacement of old street light fitting any type, LED street light fittings, 70 Watt, IP-65 complete complete all as specified and as directed.

Supply & fixing Street light bracket suitable for PCC/ Steel Pole made to shape out of GI pipe 40 mm bore light grade, 1.5 mtr length and fixed in replacement with MS Calmps of size flat MS iron 50 mm x 6 mm , nuts, bolts and washers on pole complete.

Supply and fixing in renewal of 3 pole power contactor ML-6 mounted on any type/description LT panel/feeder pillar/wall after taking down old existing un serviceable contactor complete all as directed.

Supply and fixing in renewal of 3 pole power contactor MNX-110 mounted on any type/description LT panel/feeder pillar/wall after taking down old existing un serviceable contactor complete all as directed.

Supply drawing, connecting and testing in replacement 3 core, 1.0 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.

Supplying and fixing in replacement 1100 volts grade heavy duty cable PVC insulated aluminium conductor, served with inner sheathing of PVC tape and overall PVC sheathed in service connections twin core cable of size 16 Sqmm flat complete all as specified ad directed.

All as per Sr item No 47.0 here in before but of size 10 Sqmm.

All as per Sr item No 47.0 here in before but of size 6 Sqmm.

Preparation of old painted surfaces of Steel tubular LT poles, any height including cross arms, MS strap, nuts, bolts, washers, cable protection pipe wherever provided etc and painting of complete poles with one coat of aluminium paint from 2.1 m above ground level to top of pole including cross arms and protection pipe 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.

Disconnecting LT connection, junction box ,taking down steel tubular Pole ,9 metres long carefully by excavation, after demolition of PCC and Material & labour for shifting of to another place as directed complete with cast iron base plate all as specified . (Note :- The above quoted rate is included for T & P , man power etc. The necessary earth work and PCC work will be measured and paid separately under respective items.)

Supply and fixing OFF load change over switch in replacement of capacity 400 Amps, four pole, 415 volts, AC, 50 Hz.

All as per Sr item No 52.0 here in before of capacity 315 Amps, four pole, 415 volts, AC, 50 Hz.

Supply & fixing in replacement SS enclosure in-built neutral link, incl MCCB of cap 125 Amp 3 pole, 36 KA complete all as specified and directed.

Supply & fixing in replacement SS enclosure in-built neutral link, incl MCCB of cap 250 Amp 3 pole, 36 KA complete all as specified and directed.

Prunning/trimming the branches of trees if any along LT overhead line/ street light pole, 3 mtr on all side below/above/sides of LT overhead line and removing the same upto 150 mtr away each span not exceeding 50 mtr complete all as specified and directed by Engineer-in-Charge (The above is to be ensured for the entire contract period by cutting/trimming of trees any number of times as required).

Stringing/stretching incl jointing in situ of different sizes of ACSR or GI earth continuity conductors with/ without guarding wires on LT electric poles at different locations all as ordered manually or by mechanical means to the extent of permissible sag or tension by removing jumpers or bindings from insulators and making fresh binding with aluminium tapes after stringing complete as ordered :-

ACSR of different size e.g Squirrel, weasel, ferret, etc.

GI Earth continuity/Guarding wire 4 mm /3.15 mm dia.

Taking down existing worn out/old/broken ACSR conductors of any size and length at any position from LT poles and supply, fixing and stretching new ACSR conductors of any size and type for over head LT poles including binding at site to insulator with suitable size of binding wire etc complete all as specified and directed by Engr in charge.

Material & labour providing shackle type insulator LT 1100 volt grade porcelain vitreous white or brown including insulator bolts, nuts 12 mm dia, 75 mm height and 90 mm dia of insulator complete all as specified and directed by Engineer-in-Charge.

Disconnecting LT cables and M & L for shifting of LT Panel of any size/capacity and reinstall with all connections, necessary foundation to another site all as specified and directed by Engr In charge.

Supply, install, testing and commissioning in replacement of factory made tested LT panel board of size not less than 1.9 mtr x 0.6 mtr x 1.5 mtr cubical double door compartment outdoor type leg mounted suitable for , 415 volts 3 phase, 4 wire, 50 HZ AC supply system having bus bar chamber with insulated Aluminium bus bar of rating not less than 1.5 times of Incomer/ Outgoings MCCBs, installed on proceline/ SMC insulator. The panel shall be dust and vermin proof IP -65 class protection and made of 3.15 mm CRCA MS sheet and inner compartment 2.0 mm, 40X40X6 mm thick MS angle iron frame work, fixing of double doors shall be on MS hinges with anti-theft provision (the door can’t be removed from enclosure without cutting enclosure), powder coated finished over one coat of red oxide on out side surface and painted in side with two coats of red oxide primer and rear opening type with apran for cable entery closing locking arrangement including internal wiring with PVC insulated multisranded copper conductor FRLS cable IS 694 marked , 1100 volts grade of appropriate size (but not less than 1.5 sqmm) and comprising of the following including necessary brick work for platform of suitable size:-

Note :- (i) All incoming and outgoing feeder shall be connected by cable through suitable size glands & Lugs. (ii) The cubical Incomer ACB/MCCB/ Change over switch as well as outgoings shall have Aluminium TPN extension links of current carrying capacity not less than 1.5 times the rated capacity of individual feeders. The extension links shall not be less than 300 mm long supported on suitable size 'F' class insulators . (iii) All MCCB with adjustable protection for over load and short circuit and conforming to IEC60947/IS 13947/Pt. II/1993 (Latest Version). The MCCB should have Ics=100% Icu. The MCCBs shall have spreader links and barriers as standard feature of manufacture. (iv) The feeder piller/panel should have louvers for natural flow of air. (v) All MCCBs should have barrier. Danger plate should be fixed on both side of the panel. (vi) A detachable gland plate of thickness 3.15 mm power coated should be used at the bottom. (vii) Minimum clearance below the On load change over switch should be not less than 0.5 mtr for better connection of Incoming LT cables. (vii) Costruction of Foundation & taking out of the old connected cables and reconnection of the same with new thimbles, gland of suitable size are deemed to the above quoted rate.

Supply, laying, jointing, testing and commissioning in replacement of LT underground cables of size 240 Sqmm 1 core, 1100 volts grade, PVC insulated XLPE and PVC sheathed, heavy duty armoured, with multistranded aluminium conductors, IS-7098, Part-II marked, laid in trenches/ duct/ under road/ footpath/ etc complete all as specified and directed by Engr In Charge.

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

Bee Kay Engineers & Contractors

M/s JAIMAA ASSOCIATES

DS CONSTRUCTION

Rajindera Enterprises

M/s Adhikari construction co.

Vijay Electricals