REPAIRS AND MAINTENANCE OF EXTERNAL ELECTRIFICATION, GARDEN / STREET / SECURITY / SEARCH LIGHTS, SUMMER AND COOLING APPLIANCES AND CONNECTED WORKS AT VAIRENGTE AND LAILAPUR UNDER GE SILCHAR

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, manholes, etc. or for laying cables/pipes, erecting poles, etc. not exceeding 10sqm on plan and getting out in soft / loose soil complete all as specified and as directed

Returning, filling in, including, spreading, leveling, watering and well ramming in layers not exceeding 25cm deep as in any type of soil complete all as specified and as directed

Removing excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point in any type of soil including spreading in low lying area and leveling complete all as specified and as directed

Supply and laying burnt bricks of sub-class 'B' designation 75 laid in trenches for cable protection complete all as specified and as directed

M&L for fine dry river sand cushioning by laying 8cm thick layer below the cable for making soft bed and 15cm above the cable and then punning down to its consolidated thickness of 18cm after the cable is laid all as specified in SSR Part-I complete all as specified and as directed Note: Only punned thickness of sand shall be considered for measurement purposes

M&L for cutting / trimming / prunning branches of trees, upto 15cm in girth, falling over HT/LT lines, in a span of 10m, cutting to make minimum distance of 3m from OH lines of any type span of any length in 2/4/6 way conductor system, including all neceessary safety precautions, shutting of supply, staging, barricading, roping down the cut branches, suitable cutters, etc. and disposing off the cut branches to a suitable place at a distance not exceeding 50m complete all as specified and as directed

M&L for cutting / trimming / prunning branches of trees, exceeding 15cm but not exceeding 30cm in girth, falling over HT/LT lines, in a span of 10mcutting to make minimum distance of 3m from OH lines of any type span of any length in 2/4/6 way conductor system, including all neceessary safety precautions, shutting of supply, staging, barricading, roping down the cut branches, suitable cutters, etc. and disposing off the cut branches to a suitable place at a distance not exceeding 50m complete all as specified and as directed

M&L for cutting unwanted growth of plants, vegetation, weeds, shrubs, small trees, bushes, etc. from inside / outside surrounding of installations / reservoirs, etc. and brooming off and removing rubbish to a distance not excceeding 50m complete all as specified and as directed

M&L for dismantling and taking down old unserviceable junction boxes of any type /size from any location / position and disposing off including all necessary carting, etc. complete all as specified and as directed

S&F thermoplastic cable junction boxes IP-65 protection class, of size 210x155x92mm, with metric knockout for cable entry, weather proof suitable for outdoor installation, including glands and with 4 terminal for terminating one incoming and outgoing UG cable of size 10/16sqmm 2/4 core fixed to electric poles any type by means of suitable MS clamps, nuts and bolts with 01No. MCB SP 20A 10kA (rate shall be included) inside the box complete all as specified and as directed

Supplying, laying / fixing, testing and commissioning of electric cable, 1100V grade aluminium conductor XLPE insulated, armoured cables conforming to IS-7098 (Part-I)-1988, stranded, PVC bedded laid in trenches, passing through ducts, etc. fixed on poles, etc. including taking out old damaged cable and disposing off complete all as specified and as directed of the following sizes: Note: Excavation/earthwork, bricks, sand cushioning and GI pipe will be measured and paid separately under respective items herein

3.5 core 120sqmm

3.5 core 95sqmm

3.5 core 70sqmm

3.5 core 50sqmm

3.5 core 35sqmm

3.5 core 25sqmm

4 core 16sqmm

4 core 10sqmm

2 core 10sqmm

2 core 6sqmm

2 core 4sqmm

M&L for cable jointing kit for 1100V grade cable for straight through heat shrink type joint with jointing material and accessories suitable for 3.5 core 16 to 50mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

M&L for cable jointing kit for 1100V grade cable for straight through heat shrink type joint with jointing material and accessories suitable for 3.5 core 70 to 120mm², XLPE insulated armoured aluminium conductor cable including taking out and disposing off old joint complete all as specified and as directed

S&F pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 50mm height, 65mm dia for 550V grade complete all as specified and as directed

S&F in repairs MCCB 63A 4 Pole, 415V, adjustable type, with breaking capacity 16kA complate all as specified and as directed

S&F in repairs MCCB 100A 4 Pole, 415V, adjustable type, with breaking capacity 16kA complate all as specified and as directed

S&F in repairs MCCB 125A 4 Pole, 415V, adjustable type, with breaking capacity 16kA complate all as specified and as directed

S&F in repairs MCCB 160A 4 Pole, 415V, adjustable type, with breaking capacity 36kA complate all as specified and as directed

S&F in repairs MCCB 200A 4 Pole, 415V, adjustable type, with breaking capacity 36kA complate all as specified and as directed

S&F in repairs MCCB 250A 4 Pole, 415V, adjustable type, with breaking capacity 36kA complate all as specified and as directed

S&F ACB 4 Pole, 630A, 415V, manual drawout type with adjustable thermal and magnetic setting including taking out old unserviceable ACB and disposing off complete all as specified and directed

S&F in repairs on load change over switch 100A 4 Pole 440V 50Hz with side handle operation housed in sheet metal enclosure as per exising make and size complete all as specified and as directed

S&F in repairs on load change over switch 63A 4 Pole 440V 50Hz with side handle operation housed in sheet metal enclosure as per exising make and size complete all as specified and as directed

M&L for danger notice plates, for LT of size 20x15cm, made of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps bolts and nuts including taking down old / damaged notice plates and disposing off complete all as specified and as directed

S&F standard SS first aid box of size 250x200x150mm comprising of all necessary first aid medicines and marked with 'FIRST AID BOX' including all necessary mounting arrangements on wall complete all as specified and as directed

Supply, fix or lay in position synthetic rubber insulated mat of size 2.0x1.0m and 25mm thick suitable for 11kV conforming to IS-15652-2006 (superseding IS-5424) complete all as specified and as directed

S&F aluminium lug suitable for cross-sectional area 10 to 35sqmm complete all as specified and as directed

S&F aluminium lug suitable for cross-sectional area 50 to 150sqmm complete all as specified and as directed

S&F aluminium lug suitable for cross-sectional area 185 to 240sqmm complete all as specified and as directed

M&L for 6mm steel wire rope ASIS 326 grade of 15m high mast lighting system including taking off old damaged rope complete all as specified and as directed

M&L for mobil and grease oil for servicing of motor, chain, pully of 15m high mast lighting system complete all as specified and as directed

M&L for mobil and grease oil for servicing of motor, chain, pully of 30m high mast lighting system complete all as specified and as directed

M&L for taking down carefully post top lanterns of any capacity / any make after disconnecting electric connections and carrying out repairs by replacing worn out / burnt / damaged parts / components and refixing the same after carrying out necessary repairs to original place and re-connecting up complete all as specified and as directed Note: Replaced major parts / components will be measured under respective items hereunder and minor spares viz. glands, nuts, bolts, etc. shall be deemed to be included in quoted rate

M&L for taking down carefully flood light / street light of any capacity / any make after disconnecting electric connections and carrying out repairs by replacing worn out / burnt / damaged parts / components and refixing the same after carrying out necessary repairs to original place and re-connecting up complete all as specified and as directed Note: Replaced major parts / components will be measured under respective items hereunder and minor spares viz. glands, nuts, bolts, etc. shall be deemed to be included in quoted rate

S&F LED street light, 72W new generation energy saving, environmental friendly, long life, made up of pressure die cast aluminium housing with high power LED as lighting source and lens embedded PC cover having top opening seperate driver compartment with IP-66 protection and impact resistance of IK07 with 10kV built-in surge protection device with 72W LED lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F 150W LED flood light fitting, pressure die cast aluminium housing with heat resistant toughened glass, IP-66 protection luminaries with 150W LED lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F LED 120W flood light, energy saving, environmental friendly, long life, exclusive innovative die-cast aluminium IP-66, suitable for highlighting architectural facade and general purpose lighting with 120W LED lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F LED 100W flood light, energy saving, environmental friendly, long life, exclusive innovative die-cast aluminium IP-66, suitable for highlighting architectural facade and general purpose lighting with 100W LED lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F LED 80W flood light, energy saving, environmental friendly, long life, exclusive innovative die-cast aluminium IP-66, suitable for highlighting architectural facade and general purpose lighting with 100W LED lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F LED building security light luminaire 45W, IP-66, with LED driver, etc. with all accessories prewired and 45W LED lamp on existing bracket or pole including taking down old / unserviceable fitting any type and disposing off complete all as specified and as directed

S&F LED building security light luminaire 72W, IP-66, with LED driver, etc. with all accessories prewired and 72W LED lamp on existing bracket or pole including taking down old / unserviceable fitting any type and disposing off complete all as specified and as directed

S&F 25W post-top lantern, opal light fitting, IP-65, new generation, energy saving, environmental friendly, long life aesthetically designed with symmetrical light distribution, spun aluminium landscape luminaire with high power LEDs as light source including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F 20W LED heritage pattern post top, ideal to light up parks, garden ways and heritage sites, IP-65 with rated LED 20W including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F 20W LED decorative pattern post top opal lantern, with high grade unbreakable polycarbonate housing and rated LED 20W lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F neo LED street light 90W for garden ways and other City beautification applications with decorative steel bracket astehtically designed as per manufacturer including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

S&F radiant LED step light 7W for outdoor application with IP-65 protection including taking down old / unserviceable light and disposing off complete all as specified and as directed

S&F 10W LED pressure die cast powder coated housing witn PC diffuser and efficient high output LEDwith IP-66 protection with 10W LED lamp including taking down old / unserviceable fitting and disposing off complete all as specified and as directed

M&L for plain cement concrete 1:3:6 (type C-2) using 40mm graded stone aggregate as in foundations, for fixing struts, poles, stay assemblies, etc. with or without chamfered angles, flat, splayed or rounded tops complete all as specified and as directed

M&L for plain cement concrete 1:3:6 (type C-1) using 20mm graded stone aggregate as in coping to poles, collars, etc. including necessary formwork as required surfaces finished even and fair complete all as specified and as directed

M&L in repairs for cross arms, bracings, supports clamps, and back plates fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated and inclusive of one primer coat, one under coat and one finishing coat of good quality of aluminium paint all as specified and as directed

M&L for stay assembly and accessories as shown in electrical plate No. 1 of SSR Part-I, using stay rod of 20mm dia, stay plate 6mm thick of size 300x300mm including stay wire 7/3.15mm dia of suitable length including taking down and disposing off old stay assembly complete all as specified and as directed Note: Cost of PCC for fixing shall be deemed to be included in the quoted rate

Supply, erect in position and fixing steel tubular swaged poles with CI base plate (300x300mm and 6mm thick), finial taper plug, pole caps, bolts, nuts and screws type 410 SP-55, 9m long, conforming to IS: 2713, with detachable bracket arms including two coats of aluminium paint over shop coat of primer at any locations including shutting of power lines, etc. taking down of old / unserviceable poles and disposing and carting off complete all as specified and as directed Note: Excavation / earthwork and PCC coping etc. will be measured and paid separately under respective items herein

M&l for applying one coat aluminium paint on 9m long steel tubular pole in position after preparation of surface of steel tubler pole including all fitted cross arms, clamp, nut, bolt, etc. including painting of black and yellow stripes of 5Nos. of 30cm wide stripes or as directed on pole upto 1.5m height above coping level including numbering of size 70x40mm by using stencil on the pole with black synthetic enamel paint 1.5m above ground level complete all as specified and as directed

S&F in repairs security light bracket with 40mm bore GI tubing, light grade, cut and bent to shape required, 1.5m long fixed with including bends, flat iron clamp made of FI 40x6mm, nuts, bolts, washers, etc. duly painted with two coats of aluminium paint over a coat of red oxide zinc chrome primer complete all as specfied and as directed

S&F in repairs steel water tubing, 40mm bore, light grade, galvanised with screwed and socketed joints, in any length, including supply and fixing all fittings, ISI marked conforming to IS -1239 and fixed to walls or floors for mounting of post top lanterns, cut to required length of 1.5m long (each) duly grouted in ground complete all as specified and as directed

Supply, installation, commissioning and testing CPRI approved LT feeder pillar box, outdoor type of size 800x600x500mm, cubical floor mounted type (IP-65 degree of protection) made out of 3.15mm thick powder coated CRCA sheet , with aluminium strip bus bar 400A rating duly drilled holes for connections and mounted on epoxy based post insulators for 3 phase 4 wire 415V 50Hz AC supply, including cable entry boxes, cable gland, with 50x50x6mm angle iron supports, bottom portion duly grouted in PCC foundation as per manufacturer's instructions including the following switchgears complete all as specified and as directed Incoming (a) MCCB 250A, 4 pole, 36kA, Icu=100%Ics- 01No (b) Phase indicator lamps (RYB) set of 3- 01set Outgoing - Through bus bar

Notes for serial item Nos. 67 to 68: (a) The Contractor shall submit drawings from the approved OEM for approval of the GE through the Engineer-in-charge (b) The panels shall include 2Nos. danger notice plates made of 1.6mm thick mild steel sheet, vitreous enamelled white, of size 250x200mm with letter, figures and conventional skull bones in signal red colour duly fixed with nuts, bolts and washers, etc. with voltage and danger indicated both in Hindi and English (c) Excavation, earthwork in any type of soil, construction of PCC foundation for panel shall be deemed included in quoted rate. Foundation specifics shall be as per OEM of panel. The Contractor shall submit foundation desgn drawings to attain approal of he GE (d) Foundation bed shall be in PCC 1:3:6 type C2 using 40mm graded stone aggregates with a depth of 15cm below ground level and 1.5m above ground level with stare and slot openings for I/C and O/G cables

M&L for taking down AC 1.5/2TR capacity for required servicing, cleaning of cooling coil, air filters/plasma filters, condenser, compressors, fan motor, etc. with vacuum cleaner and cleaning solutions, etc., checking serviceability of electrical / electronic parts viz. circuit relays, wiring kit, thermostat switches, knobs, remote control unit, fan, blower, etc. and ensuring the AC unit in satisfactory working conditions complete all as specified and as directed for the following type of AC units: Notes: (a) Spares / parts / components replaced will be measured and paid separately under relevant items hereinafter and labour charges for replacement including all allied works shall be deemed to be included in the unit rate quoted (b) Gas charging as required shall be deemed to be included in the quoted rate (c) Cost of taking down, loading / unloading, carting (to & fro) to workshop if required shall be deemed to be included in the quoted rate

Window type AC units

Spli type AC units

S&F in repairs the following spare parts including necessary fittings as per sample and suitable for air conditioner 1.5/2T, split / window type units complete all as specified

Thermostat switch with regulating knob

Starting capacitor 80/100Mfd

Blower motor 8Mfd capacitor

Running capacitor 36Mfd

Running capacitor 50Mfd

Relay box / open type

Overload protector relay

Strainer / drier

Front grill suitable as per existing pattern including fixing screw

Air filter

Remote control PCB

Capillary charging

MS stand for split AC

Supply, installing, testing and commissioning of compressors of AC units, in any location / position including disconnecting electrical mains, remove the refrigerant and capture it in a storage cylinder, cutting line sets, removing the condenser coil and everything around the compressor, taking out the condenser unit, cleaning and removing dust / dirt, etc., necessary minor modifying (replacement of capilary tubes, etc.), replacing the compressor and finally put the rest back together and balance charging of refrigerant gas F-22/R-134A (if required) including disposing of old unserviceable condensor unit complete all as specified and as directed of the following capacities: Notes: (i) Compressor units shall be from existing manufacturer / as approved by the GE (ii) Compressors shall be brought in sealed conditions (iii) Compressor shall bear a minimum guarantee of 5years and as given by manufacturers

S&F in repairs condensing coil assembly of air conditioner of any make, including necessary fittings viz. clamps, nuts, bolts, etc. and all required soldering, brazing, etc. complete all as specified and as directed

S&F in repairs blower motor assembly of air conditioner of any make, as per existing including necessary fittings viz. clamps, nuts, bolts, etc. complete all as specified and as directed

M&L for charging refrigerant gas F-22/R-134A in split type AC unit of capacity 1.52Ton including required staging / taking down of compressor units, etc. as required, detecting leakages, etc. stopping leakages by welding and testing on commissioning in satisfactory working conditions complete all as specified and as directed

M&L for disconnecting from mains, for servicing refrigerators including cleaning the cooling coil, air filters, condenser, compressors, fan motor, etc. with vacuum cleaner and cleaning solution, checking serviceability of electrical/electronic circuits relays, wiring kit, thermostat switches, knobs, leakage of gas, etc. and making refrigerator to satisfactory working conditions complete all as specified and as directed of the following capacities: Notes: (a) Spares / parts / components replaced will be measured and paid separately under relevant items hereinafter and labour charges for replacement including all allied works shall be deemed to be included in the unit rate quoted (b) Gas charging as required shall be deemed to be included in the quoted rate (c) Cost of lifting, loading / unloading, carting (to & fro) to workshop if required shall be deemed to be included in the quoted rate

310litres

230/285/286litres

165/175/185litres

S&F in repairs the following spare parts as per sample and suitable for refrigerators including necessary fittings complete all as specified and as directed:

Strainer or drier round type

Relay box type 1/6HP

Switch for cabinet bulb

Lamp screw type

Door lock with duplicate keys

Relay open type (over load cum relay)

Overload protector

Cooling coil door with locking spring

Thermostat switch with regulating knob

Ice tray

Fan motor / evaporator

Fan blade

Chiller tray as per existing model

Frost free timer

Frost free cooling coil

Capillary charging

Thermal fuse

S&F company made new sealed compressor units for refrigerators, including disconnecting electric and water connections in any position / location, cleaning and removing dust / dirt, etc., necessary minor modifying (replacement of capilary tubes, etc.), replacing the compressor and finally putting the rest back together and balance charging of refrigerant gas (if required) including disposing off old unserviceable compressor unit complete all as specified and as directed of the following capacities: Notes: (i) Compressor units shall be as approved by the GE (ii) Compressors shall be brought in sealed conditions (iii) Compressor shall bear a minimum warantee of 5years and as given by manufacturers

165 to 185litres

310litres

M&L for charging refrigerant gas F-22/R-134A in refrigerator units of any capacity and testing on commissioning in satisfactory working conditions complete all as specified and as directed

M&L for charging refrigerant gas R-134A/R290 in refrigerator units of any capacity and testing on commissioning in satisfactory working conditions complete all as specified and as directed

M&L for disconnecting from mains, for servicing deep freezers including cleaning the cooling coil, air filters, condenser, compressors, fan motor, etc. with vacuum cleaner and cleaning solution, checking serviceability of electrical/electronic circuits relays, wiring kit, thermostat switches, knobs, leakage of gas, etc. and making refrigerator to satisfactory working conditions complete all as specified and as directed of the following capacities: Notes: (a) Spares / parts / components replaced will be measured and paid separately under relevant items hereinafter and labour charges for replacement including all allied works shall be deemed to be included in the unit rate quoted (b) Gas charging as required shall be deemed to be included in the quoted rate (c) Cost of lifting, loading / unloading, carting (to & fro) to workshop if required shall be deemed to be included in the quoted rate

280litres

310/320litres

S&F company made new sealed compressor units for deep freezers of capacity 280/310/320litres, including disconnecting electric and water connections in any position / location, cleaning and removing dust / dirt, etc., necessary minor modifying (replacement of capilary tubes, etc.), replacing the compressor and finally putting the rest back together and balance charging of refrigerant gas (if required) including disposing off old unserviceable compressor unit complete all as specified and as directed of the following capacities: Notes: (i) Compressor units shall be as approved by the GE (ii) Compressors shall be brought in sealed conditions (iii) Compressor shall bear a minimum warantee of 5years and as given by manufacturers

S&F in repairs the following spare parts as per sample and suitable for deep freezers including necessary fittings complete all as specified and as directed:

Fan motor with blades 220-240V, 0.10A

Heater for defrosting

FF timer

PCB timer

Capacitor 3.5/5/6MFD

Relay set PCTR

Door with lock and duplicate keys

Drier strainer

Thermostat switch with regulating knob

M&L for disconnecting from mains and taking down for servicing water coolers including cleaning the cooling coil, air filters, condenser, compressors, fan motor, etc. with vacuum cleaner and cleaning solution, checking serviceability of electrical/electronic circuits relays, wiring kit, thermostat switches knobs, fan and blower, etc. and making the water cooler to satisfactory working conditions complete all as specified and as directed of the following capacities: Notes: (a) Spares / parts / components replaced will be measured and paid separately under relevant items hereinafter and labour charges for replacement including all allied works shall be deemed to be included in the unit rate quoted (b) Gas charging as required shall be deemed to be included in the quoted rate (c) Cost of lifting, loading / unloading, carting (to & fro) to workshop if required shall be deemed to be included in the quoted rate

150litres

60/120litres

40/80litres

S&F company made new sealed compressor units for water coolers of capacity 60/120litres, including disconnecting electric and water connections in any position / location, cleaning and removing dust / dirt, etc., necessary minor modifying (replacement of capilary tubes, etc.), replacing the compressor and finally putting the rest back together and balance charging of refrigerant gas (if required) including disposing off old unserviceable compressor unit complete all as specified and as directed Notes: (i) Compressor units shall be from existing manufacturer / as approved by the GE (ii) Compressors shall be brought in sealed conditions (iii) Compressor shall bear a minimum guarantee of 5years and as given by manufacturers

M&L for charging refrigerant gas F-22/R-134A in water cooler units of any capacity and testing on commissioning in satisfactory working conditions complete all as specified and as directed

S&F in repairs blower motor assembly of water coolers of any make, as per existing including necessary fittings viz. clamps, nuts, bolts, etc. complete all as specified and as directed

S&F in repairs condensing coil assembly of water coolers of any make, including necessary fittings viz. clamps, nuts, bolts, etc. and all required soldering, brazing, etc. complete all as specified and as directed

S&F in repairs the following spare parts as per sample and suitable for water coolers including necessary fittings complete all as specified and as directed:

Starting capacitor 60-80Mfd

Running capacitor 25Mfd

Relay box type 1022

Thermostatic switch with regulating knob

Push cock, self closing chromium plated 15mm bore including nut and washer, etc.

PVC drain pipe 1m long including clamps

Float valve of glass or gun metel, 15mm bore with ball

Over load protector relay

Running capacitor 36Mfd

Capillary charging

Pencil strainer

M&L for preparing surfaces of refrigerators/deep freezers/ AC units/ solar water heaters, etc. by rubbing with emery paper/removing rust, etc. filling cavities, etc. with filler putty and writing MES No. & capacity in black synthetic enamel paint in legible font (not exceeding 30cm height) as approved at any location / position complete all as specified and as directed

Supplying, fixing, connecting and testing electronic voltage stabiliser, wall mounted type, of capacity 5kVA, with high / low voltage cutout and time delay relay, for automatic operation, single phase, naturally air cooled, indoor type and designed for input variation between 90V to 300V and output voltage stabilised at 230V with accuracy +2.5% complete all as specified and directed

M&L for earthing using GI earthing wire with galvanised steel earth plate electode 600x600x6mm thick buried directly in ground, earth pit not less than 2.25m deep below ground level connection to and including GI earth lead wire 4mm dia extended to 7.5m as earth lead by means of GI bolts, nuts, etc. with provision of charcoal and salt all as per electrical plate No. 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade), earth lead protection pipe 15mm light grade with bends, elbow, etc. from earth plate to test point, excavation and earthwork in any type of soil, returning, filling, ramming and removing of soil to distance not exceeding 50m, make good to match with existing surface making PCC pit (earth chamber) having internal size 300x300x300mm and outer size 600x 600x600mm with RCC reinforced cover 50mm thick and testing on completion including making test points on wall as per SSR specifications, taking down and disposing off old earthing complete all as specified and as directed

M&L for earthing using GI earthing strip with galvanised steel earth plate electode 600x600x6mm thick buried directly in ground, earth pit not less than 2.25m deep below ground level connection to and including GI strip of size 25x4mm extended to 7.5m as earth lead by means of GI bolts, nuts, etc. with provision of charcoal and salt all as per electrical plate No. 3 of SSR Part-I including water arrangement with GI pipe 20mm dia (medium grade), earth lead protection pipe 50mm medium grade with bends, elbow, etc. from earth plate to test point, excavation and earthwork in any type of soil, returning, filling, ramming and removing of soil to distance not exceeding 50m, make good to match with existing surface making PCC pit (earth chamber) having internal size 300x300x300mm and outer size 600x 600x 600mm with RCC reinforced cover 50mm thick and testing on completion including making test points on wall as per SSR specifications and taking down old earthing complete all as specified and as directed

Notes for serial item Nos. 157 & 158: (i) The cost of GI earth continuity wire / strip with GI pipe 20mm medium grade upto 7.5m is deemed to be included (ii) The earth chamber to be constructed 0.5m from edge of earth pit with necessary watering arrangement. The cost for the same is deemed to be included in above item (iii) Earthing shall produce desired earth resistance values as directed by the Engineer-in-charge

M/S. N.A.BARBHUIYA

M/S SUBHAM ENTERPRISE

NAGALAND AGENCIES CO

M/S M P Sharma

M/S SANJIB DEB

M/S LUIT CONSTRUCTION

M/S TAPAN KUMAR RAY

M/S PIJUSH BHATTACHARJEE

M/S R A ENTERPRISE