UPGRADING THE INFRASTRUCTURE TO UNDERTAKE REFURBISHMENT AT AF STN GWALIOR

Amount

Excavation in trenches in soft & loose soil not exceeding 1.5 metre deep and not exceeding 1.5 mtr width and getting out soil including forming bottom surface to required slope/gradient for laying cables/pipes,foundations,laying of cable, shafts, well, cesspits, manholes etc. complete all as specified and directed by Engineer-in-Charge.

Removal of surplus excavated spoil not exceeding 50 Mtr distance and depositing where directed by Engineer-in-Charge at a level not exceeding 1.5 m above the starting point complete all as specified.

Returning, filling in including spreading, leveling, watering and well ramming in layers of not exceeding 25 cm thick after the cables & pipes etc. are laid, jointed & tested and foundations complete all as specified and directed by Engineer-in-Charge.

M&L for plain cement concrete 1:4:8 type D-2 (using 40 mm graded crushed stone aggregate) as in sub base of flooring, foundations,filling & mass concrete for fencing posts, foundation of pole struts & stay assembly etc complete all as specified and directed.

M&L for plain cement concrete 1:2:4 type B-2 (using 40 mm graded crushed stone aggregate) in foundation, filling , mass concrete for fencing post etc complete all as specified and directed.

M&L for Brick work using "B" class old size bricks, straight or curved on plan exceeding 6m mean radius, built in cement mortar 1:6 etc complete all as specified & directed.

M&L for rendering 15 mm thick in cement mortar (1:6) on fair faces of brick work / concrete surface finished even and smooth etc.(without using extra cement ) complete all as specified and directed.

M&L for rendering 15 mm thick in cement mortar (1:6) on other than fair faces of brick work / concrete surface finished even and smooth etc. (without using extra cement ) complete all as specified and directed.

S & F Steel work in tubular trusses/post any bore/dia including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to I. S.1161- 1979 grade St.-240 complete all as specified & directed.

S & F for Roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc. conforming to Fe-410-W Gde -E-250 quality A complete all as specified & directed.

S & F for rolled mild steel plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment conforming to Fe-290-W Gde -E-165 complete all as specified & directed.

S & F Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50 mm thick of an approved colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified & directed.

S & F Pre- painted galvalume aluminum zinc coating GI based plain steel sheet 0.50 mm thick of an approved colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified & directed.

S & F mild steel screw bolt (machine made) of 11 mm to 15 mm dia of neck with hexagonal or square head one end and screwed the other or screwed both ends, each screw end to be fitted with washer and one hexagonal or square nut, length of bolt not exceeding 5 cm etc complete all as specified & directed.

M&L for prepartion of new or previously untreated steel surface of any description , not otherwise described over 10cm in width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified & directed.

Surface excavation not exceeding 30cm deep and averaging 15 cm deep and getting out in soft / loose soil complete all as specified and directed.

M&L for hard core of broken stone or boulder gauge not exceeding 63mm deposited, spread & leveled in layers not exceeding 15cm thick, watered and rammed to a true surface etc complete all as specified & directed.

M&L for 100 mm thick plain cement concrete 1:2:4, type B-1 (using 20 mm graded crushed stone aggregate) as in hardstanding etc , finish even and smooth without using extra cement complete all as specified and directed.

M&L Forming contraction (Dummy) joints 65 mm deep x 10 mm wide, filled with sealing compound of grade -A complete all as specified and as directed.

M & L for 50 mm thick PCC (1:3:6) type C-2( using 40mm graded crushed stone aggregate ) as in plinth protection laid in panels and joints filled with mix of bitumen and sand (1:3) by weight, finished the surface even and fair complete all as specified and directed.

Item No. 1.22 contd... (v) Brakes for all drives shall be Electro-magnetic shoe brakes according to the application (vi) Hooks shall be shank type supported on anti friction thrust bearing and the sleeve pulleys shall be made out of malleable cast iron or fabricated, conforming to IS: 3815. (vii) The crane shall be controlled by pedant. The main electrical components shall be housed sheet steel enclosures suitable for indoor application conveniently located for easy maintenance. Standard protection devices for overload protection and short circuit protection shall be provided. (viii) Supply and installation of suitable size DSL type copper busbars for 3 phase, 415 Volt AC system all as specified n relevant IS standarads. (ix) All other incidental, Civil. Electrical and Mechanical works For the followings: Three (03) tons capacity, Approximately 12000 mm span, Approximately 18000 mm longitudinal travel, Approximately 3000 mm hook height to be installed in storage building of Wksp but excluding RCC bracket complete. (x) Fixing arrangement of EOT crane on existing RCC brackets shall be as per manufacturers instructions or as directed by Engineer-in Charge and cost for the same shall be included in cost of item No. 1.21 of BOQ herein before. (xi) Yard stick for payment of item No.1.21 of BOQ here-in-before shall be submitted by the contractor within one month from the date of commencement of work duly supported with quotations/price list of manufacturers to GE and shall be approved by the Accepting Officer.

Item No. 1.23 contd... Notes 1. The various dimensions given above are approximate. The contractor is advised to visit the site of work for accurate measurements of these dimensions. In any case before undertaking fabrication work the contractor must ascertain the final finished dimensions. 2. The crane will be put to use for 365 Days' continuous duty with CT, LT and Hoist movements. 3. The department shall be responsible for providing suitably rated electrical outlet in the Main Electrical Control Panel/Main Distribution Board of the buildings. All other works, electrical earthings and associated incidental and minor works shall be the responsibility of the contractor 4. The shop floor environment will be dust prone, humid, welding fume filled and ambient temperature going up to 50°C. Weather conditions are sub tropical. Sound level should be minimum and the crane should have decent aesthetic look. Design conditions to cope with ambient Temperature: 4°C-50° C & relative Humidity: 95%. 5. The crane is to designed by the contractor. Major Technical specifications of the crane are given below.These are to be complied with by the contractor/manufacturer. The parameters which are not specified are to be as per Contractors/OEM's own design. The contractor shall submit following drawings, giving all design parameters and get the drawings approved from the Garrison Engineer. The drawings shall be complete in all respect.

Item No. 1.26 contd... STRUCTURAL FABRICATION (Constructional Details). (i) Bridge Girder: Shall be of Double Girder Box Type construction having Minimum vibrations (ii) End Carriage: Fabricated from rolled steel sections/plates as per IS 2062 (iii)Raw Material: Only tested quality steel Fe 410 WB as per 15-2062, IS 1964 & IS:808 and certified for quality by reputed inspection authorities, shall be used. (iv) Number of Joints allowed: Single Joint (v) Welding Electrodes for all Horizontal Welding: E 7018 Electrode only should be used (vi) Welded Joint Testing All Butt Welded Joints (both compression/ tension and flanges/web joints)shall be subjected to 100% X-Ray Testing and X-Ray Films to be produced for evaluation and form part of the completion documentation). (vii) Mechanical Joints: Fit Bolts (as per IS 3640-1982) for all joints coming in main members.

Item No. 1.27 contd... Heat Treatment & NDT Examination. The Trolleys shall be stress relieved, if necessary, by thermal heat-treatment process after welding & NDT. All welding shall be tested by NDT means (MPI, LPI & RT) after stress relieving operation (Govt approved Test House & certificate) Manufacturer to furnish the details of facilities for Heat Treatment furnace & NDT Lab at their works. All the welded joints should be NDT tested by Govt. approved Test House & certificate /X-Ray flims to be submitted at time of inspection.

Item No. 1.28 contd... Wheels: Wheels shall be of forged and made of C55 Mn75 Carbon steel, Hardened to BHN 300-350 (a) Cross Travel (CT) -Design and supply complete all as per manufacturer's recommendation. (b) 2 Long Travel (LT)- Mention the wheel diameter in drawings & Shall be matched with the above rails. Contractor to submit. Lubrication: Suitable lubrication system shall be provided for gear box, all rotating parts wherever applicable. Details ofthe same to be furnished. Please indicate the type of Lub. Oil & grease, quantity also RopeDrum: Shall be of fabricated type stress relieved or seamless pipe. The circumferential weld joints shall be tested Type of Coupling Couplings should be flexible geared Barrel type. No pin/bush/rubber type coupling to be used Machining Operation: All mechanical mating surfaces and wheel seating areas are to be machined to the required finish and protected. Hoist Wire Rope Details: Fiber core confirming to 15: 2266. Mention Wire rope dia, No. of fall & Construction Minimum Factors of Safety confirm to IS-3177 depending on class of duty& Tensile Strength (1960N/Sqmm for wire rope) as per ISO:4309.1990 (Contractors Comply & submit details)

Item No. 1.29 contd... Lifting Hook. Drop Forged with latch, Plain C type, Swiveling on Thrust Bearing, Duly tested as per IS: 15560 (Latest Version) (Contractor to Comply & submit details) Buffers (End Stoppers) Buffers of adequate size shall be provided Contractor to provide Maintenance Platform: Maintenance/service platform of load carrying capacity apprx 250 Kgs, of sufficient width shall be provided & fixed through bolted joints only. A hand railing sufficient height Contractor to provide and the guard (Min 100mm) shall also be provided. Platform shall have anti-skid grating. Guards: All the moving parts should be duly covered with guards as per safety norm, Proper guard/cover/tray to prevent falling of bolts from coupling etc should also be provided, wherever required. (Contractor to provide details) Input Power Supply: Shall be 415 (+/-)10% Volts, 50 ± 3% Hz, 3 Phase, AC. Control Voltage: Shall be 110V AC Protection: All Panels, Limit-Switches and Motors shall have IP 54 protection & flameproof compatable

Item No. 1.30 contd... Motor Details: Squirrel Cage Induction Crane duty motors, Totally enclosed, fan cooled,Insulation Class-F & confirming to relevant latest IS 325, and IS-123, S4 duty, 150 starts per hour and 40% CDF Contractor to provide other details like No. of motors, capacity of motor, Frame size, make, type and No. of poles etc. Type & details of Brakes for all motions: Conical rotor type or "Fall to safe" action type Electromagnetic shoe / disc brakes type to be provided to hold the mechanism in position instantaneously as soon as the power supply is 'OFF either accidentally or intentionally for all motions

Item No. 1.31 contd... Electric Contactors: Contactors suitable for Crane operations Crane duty AC-4 ratings Wiring: All the panel wiring should be done by using standard multi core Copper highly flexible, double insulated cables Earthing for Electrical items in Crane: Shall be carried out as per IS. Trailing Cables(Extra flexible having copper conductors only) should be traveling on rollers moving on separate - Beam parallel to Bridge Girder and both for LT & CT shall be supplied and Erected by supplier. Illumination: 2 Nos of 120 Watts HPMV Lamps & fittings shall be provided under the Bridge and 1 No. shall be provided under CT Trolley, Fittings shall be of non-integral type. (Total lights 3 Nos.) Limits Switches: Hoist shall be provided with both rotary and counter weight type flameproof compatable (Over Hoisting and Over lowering) Shunt, adjustable type limit switches. Limit switches shall be provided for both CT , LT & Hoist. Two way lever type for CT, LT Hoist in both direction.

Item No. 1.33 contd... Painting Instructions: (a) Surface Cleaning: Girder to be shot blasted or chemically treated for surface cleaning, after completion of all operations but prior to painting. Contractor to furnish the details of facilities for Shot Blasting M/c at their/OEM's works. (b) Painting: One coat of Red Oxide Primer with 25 micron DFT (Dry Film Thickness) and 48 hours of compulsory curing after painting. (c) The crane should be thoroughly cleaned and final painting with two coats of Enamel Paint (Colour-Golden Yellow) each with a DFT of 25 micron and intermittent curing of 16 hours. Final touching will be done after erection & commissioning at site if required.

Supply, fixing, testing and commissioning of fire alarm control panel complying with BS EN 54 double loop panel of capacity from 99 detectors and 99 modules upto 200 detectors and modules complete all as specified and directed by Engineer-in-Charge.

Supply,install and testing of detectors complying with and type certified to EN-54 addressable type multisensor detector with heat and smoke combination photo electric/optical with base as per IS 11360 complete all as specified and directed by Engr-in-charge. Note : The quoted rate against item include the cost of labour & material for removing, stacking, safe custody and refixing of false celling, AC ducting grill and making good the disturbed surfaces after wiring/conducting/ installtion of fire detectors wherever applicable as per site condition.

Supply , installing, testing and commissioning of remote response indicators complete all as specifed and directed by Engr-in-charge

Supply, install, testing and commissioning of addressable manual call point resettable type complete all as specified and driected by Engr-in-Charge

Supply, install, test and commissioing of addressable electronic sounder cum strobe complete all as specified and directed by Engr-in-charge

Material and labour for fire alarm point wiring with two 1.5 sqmm PVC insulated, unsheathed, single core, multistranded copper conductor FRLSH cable 1100 volts grade drawn through in and including rigid stove enamelled steel conduit medium grade not less than 20mm dia with its accessories including two coats of painting over conduit with sythetic enamel paint of colour/shade as approved by GE & making good the distrubed surface complete all as specified and directed. Note: (i) Two runs of 1.5 sqmm copper wire + one run of MS conduit of one metre length shall be considered as one unit (i.e. One RM) for purpose of measurement of this item. (ii) Wiring shall be provided on surface of wall / ceiling as directed by GE.

M& L for preparation of new plastered surfaces of wall and applying two coats of white wash complete all as specified and directed.

Supply, laying , jointing & testing XLPE insulated,armoured , (heavy duty) with standard aluminium conductor , 1100 Volts grade of cross sectional area 120 Sq mm 3.5 core complete all as specified and directed. Note : (i) Excavation , earth work, sand cushioning for cable and cable protection cover shall be measured & paid under respective item. (ii). Lugs/Glands/saddles of suitable size required for fixing of cables in panels/junction boxes /on walls shall be included in the item rate.

Supply, laying , jointing & testing XLPE insulated,armoured , (heavy duty) with standard aluminium conductor , 1100 Volts grade of cross sectional area 50 Sq mm 3.5 core complete all as specified and directed. Note : (i) Excavation , earth work, sand cushioning for cable and cable protection cover shall be measured & paid under respective item. (ii). Lugs/Glands/saddles of suitable size required for fixing of cables in panels/junction boxes /on walls shall be included in the item rate.

Supply, laying , jointing & testing XLPE insulated,armoured , (heavy duty) with standard aluminium conductor , 1100 Volts grade of cross sectional area 35 Sq mm 3.5 core complete all as specified and directed. Note : (i) Excavation , earth work, sand cushioning for cable and cable protection cover shall be measured & paid under respective item. (ii). Lugs/Glands/saddles of suitable size required for fixing of cables in panels/junction boxes /on walls shall be included in the item rate.

Supply, laying , jointing & testing XLPE insulated,armoured , (heavy duty) with standard aluminium conductor , 1100 Volts grade of cross sectional area 6 Sq mm 2.0 core complete all as specified and directed. Note : (i) Excavation , earth work, sand cushioning for cable and cable protection cover shall be measured & paid under respective item. (ii). Lugs/Glands/saddles of suitable size required for fixing of cables in panels/junction boxes /on walls shall be included in the item rate.

Supply and install three phase air compressor 50 Hz of capacity 10 bar, 300 ltrs , 7.5 HP with rated voltage 400Volt complete all as specifed and directed by Engr-in-Charge.

Supply and install Industrial Vaccum cleaner of capacity 15 Ltr rated voltage 230 Volt 1200 Watts, frequency 50 Hz complete all as specifed and directed by engr-in-charge.

M & L earthing complete with Gl electrode of size 600 mm x 600 mm x 6.00mm thick buried directly in ground vertically in pit of depth not less than 2.25 mtr below normal ground level with top edge of the earth plate not less than 1.50 mtr below normal ground level connected to Gl earth strip 25 mm X 4 mm as main earthing lead by means of bolts, nuts, check nuts and washers of brass connected including gun metal or phosphorus bronze of size 75x75x25 mm drilled and screwed including 3 Nos 8 mm dia 25 mm long hexagonal head screwed all as specified including excavation and earth work and disposal of surplus soil including 40 mm dia Gl tubing light grade and necessary fitting for protection of Gl strip including laying of charcoal, dust and common salt PCC (1:3:6) type C-l( using 20 mm graded crushed stone aggregate) earth pit with 40x40x6mm mild steel angle iron frame & 40mm thick pre cast RCC cover (1:2:4) type B-1 (using 20 mm graded crushed stone aggregate) reinforced with 8mm dia TMT bars @ 75mm C/C both way with mild steel handle 12 mm dia round bars ,10mm thick plastering with cement mortar (1:4) internally and upto 150 mm below ground level externally, PGI funnel with wire mesh 20mm dia Gl pipe for watering complete all as shown on electrical plate No.3 of SSR Part -1 2009 and connected in earth test including testing completed all specified and directed. Note: (i) Earth strip and its protection pipe up to and including 7.5 mtr only from the top of earth electrode are included in this item. (ii) The length of the GI strip beyond 7.5m will be measured and paid seperately. (iii) Test result of earthing to be submitted by the contractor for all earthing . (iv) Earth filling shall be done by vegetable soil. (v) Soil should be free from stone, boulders,aggragates,gravel etc. (vi) The rate quoted by the bidders shall also be deemed to include :-(a) Excavation upto 5 mtr depth and returning filling in any type of soil and disposal of surplus soil. (b) Supply of charcoal and common salt.

M & L for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required using 25x4mm galvanised iron strip complete all as specified and directed.

Supply only GI Pipe medium grade 40mm dia for protection of earth lead / Copper conductor cable buried underground complete all as specified and directed.

Supply, erecting and fixing in true vertical position, steel tubular swaged poles(410 SP – 31), 09 mtr long, complete with cast iron base plate, pole cap / finial taper plug, bolts, nuts and washers, welded reduced section and longitudinal weld throughout entire length of pole complete all as specified and directed.

M&L for plain cement concrete (1:3:6) type C-1 ( using 20 mm graded crushed stone aggregate ) as in coving on chajja, balcony or in roof Kerbs, benching,coping , bed plates for fixing hold fast ,rounded or chamfered on edges and similar work including necessary formwork complete all as specified and directed.

Supply, fixing and connecting and testing new generation energy saving & environmental friendly long life versatile pressure die cast aluminium housing LED Street light luminaires with IP-66 70 Watt LED ) as light source suitable for pole dia 30 mm (max) inlcuding making connection with three core PVC insulated and sheathed copper conductor cable of size 1.5 Sqmm complete all as specified and directed by Engr-in-charge.

Supply and fixing energy saving, environmental friendly, long life, exclusive innovative die cast aluminium IP-66 flood light 120 watt capacity with high power LEDs as light source including making connection with three core PVC insulated and PVC sheathed copper conductor cable complete all as specified and directed by Engr-in-charge.

Taking down flame proof fittings along with point wiring etc of any rating of any size from wall mounting and ceiling mounting complete all as directed. Note : The quoted rate against item include the cost of labour & material for removing, stacking, safe custody and refixing of false celling, AC ducting grill and making good the disturbed surfaces after wiring/coduiting of fire detectors wherever applicable as per site conditions.

Labour only for re installting/re-fixing flame proof light fittings obtained from item No 1.56 above all as directed.

Supply and fixing LED light fitting 2X 20 watt flame proof, CMRI certified recommended for gas/vapour group of IIA & IIB, Zone 1 & 2 and IP-65 protection with di cast aluminium housing with heat resistant toughened glass with LED tube light fixture driver, prewired, connector etc, complete with all accessories prewired and including connection up with three core flexible copper conductor cable with suitable size complete all as specified and directed by Engr-in-charge.

Material and labour for flame proof point wiring for one light point controlled by one switch with using 1.5 Sqmm (nominal area) stranded copper conductor, single core, FRLSH PVC insulated & unsheathed cable, 1100 volts grade concealed steel conduit in walls/ceiling steel structure upto 15 mtr height with and including fixing of clamps, welding and other attachment requried to fix MS pipe with all accessories and using 1.5 Sqmm (nominal area) stranded copper conductor single core FRLS, PVC insulated & unsheathed cable as in earth wire connected to common earth dolly / fittings etc. complete all as specified and directed

Material and labour for flame proof point wiring for one light point controlled by one switch with using 2.5 Sqmm (nominal area) stranded copper conductor, single core, FRLSH PVC insulated & unsheathed cable, 1100 volts grade concealed steel conduit in walls/ceiling steel structure upto 15 mtr height with and including fixing of clamps, welding and other attachment requried to fix MS pipe with all accessories and using 2.5 Sqmm (nominal area) stranded copper conductor single core FRLS, PVC insulated & unsheathed cable as in earth wire connected to common earth dolly / fittings etc. complete all as specified and directed

M&L for sub main wiring in replacement using four single core PVC insulated, unsheathed stranded copper conductor cable of size 4 Sqmm FRLSH of voltage rating upto and including 1100 Volts drawn in and including recessed PVC conduit of dia not less than 32mm with standard accessories, along-with one run of PVC (green colour) insulated, unsheathed, stranded copper conductor of size 4 Sqmm as earth continuity conductor complete all as specified and directed. (NOTE: Four run of single core PVC cable with one run of earth conductor and one run of conduit shall be measured as one unit.)

Supply & fixing for flame proof push button rotary type switch 16 Amps in LM 6 metal enclosures, conforming to cat part No PBS / OA /1010-1A complete all as specified & directed.

Supplying & fixing flame proof, switch socket & plug combined made of aluminum alloy LM-6 having 2 pole + earth suitable for 250 volts supply and current rating of 16 Amps complete all as specified & directed.

Supplying & fixing flame proof, switch socket & plug combined made of aluminum alloy LM-6 having 3 pole + Neutral+Earth suitable for 250 volts supply and current rating of 32 Amps complete all as specified & directed.

Supply and lay MS pipes heavygrade (EWR) with all fittings laid in floors or fixed to walls and ceilings etc of 40mm dia complete all as specifed and directed by Engr-in-charge

Supply and fixing LED flood light fiting 1 X 100 watt flame proof, CMRI certified recommended for Gas/Vapour group of IIA & IIB, Zone 1 &2 and IP-65 protection with die cast aluminium housing , with heat resistant toughned glass, with LED flood light fixtures driver, surge protector etc. Complete with all accessories prewired and including connection upto with three core flexible copper conductor of size 1 Sqmm 30 mtrs complete all as specified and directed by Engr-in-charge.

Supply and fixing moveable/portable stand three legged for mounting of 100 Watt flood light , 7 foot long with adjustable height (2.8 to 6.7 feet) made out of strong aluminium complete all as specifed and directed by Engr-in-charge.

Material and labour for earthing complete with copper plate electrode 600mm x 900mm x 5mm thick buried directly in ground vertically to a depth not less than 4.7 meter below normal ground level (with top edge of earth plate not less than 3.6 meter below ground level & complete size of earth pit 0.60m x 0.60m x .04m) connected to copper strip 32mm x 6mm as main earthing lead by means of tinned copper / brass bolts, nuts, check nuts and washers besides brazing at all joints all as directed and connected to earth test point all as specified and testing on completion with and including necessary excavation and earth work in any type of soil, earth electrode, earthing lead from electrode to test point, made of phosphorous brongze/gun metal of size 75mmx75xmmx25mm dril and screwed including 03 Nos 8mm dia 25mm long hexagonal head screwed, 50mm bore GI medium grade for protection of earth lead from top of plate to test terminal complete, adequate quantity of charcoal dust, magnesium sulphate & common salt in alternate layers of 100mm thick all around the plate, under and above the plate and returning, filling of earth spread, levelled, watered and compected to required level, PCC (1:3:6) type C-1 (using 20mm graded stone aggregate) for earth pit with 40 x 40 x 6mm mild steel angle iron frame for cover, pre cast 40mm thick RCC cover of (1:2:4) type B-1 (using 20mm graded black trap/granite/Basalt stone aggregate), rainforced with 8mm dia TMT bars 3 Nos both way with 12mm dia MS round bar handle, GI medium watering pipe 25mm bore with funnel and wire mesh complete all as specified and directed. NOTE : (i) The cost of earth lead and its protection pipe upto and including 7.5 mtr only from the top of earth electrode are deemed to be included under this item and additional earth lead , if any, required at site shall be measured and paid for separately under appropriate item of Schedule `A’. (ii) Any joint in earth lead from earth electrode to test point shall not be allowed/permitted.

Supply and spreading clean, dry, fine river sand for under ground electric cable in two layers (8 cm thick before laying the cable & 15 cm thick after laying cable) total 23 cm thick including gentle punning the sand upto 18 cm (total thickness) and consolidated around cable for protection of under ground cable complete all as specified and directed.(Note :- Only punned thickness shall be measured for payment).

Supply & Laying precast PCC cable cover LV low voltage type -I flat ISI marked of size 250 mm x 150 mm x 40 mm complete all as specified and directed by Engr-in-charge.

Excavation in trenches in soft & disintegrated rock exceeding 1.5 metre deep but not exceeding 3.00 m deep and not exceeding 1.5 mtr width and getting out including forming bottom surface to required slope/gradient for laying cables/pipes,foundations,laying of cable, shafts, well, cesspits, manholes etc. complete all as specified and directed by Engineer-in-Charge.

JNK BOND