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| 1 | Excavating in trenches, not exc 1.5 metre wide and not exc 1.5 metre in depth, for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. laying cables, pipes, etc. not exc 10 Sqm on plan & not exc 1.5m in depth and getting out in soft/loose soil complete all as specified and as directed. |
| 2 | Excavating in trenches, not exc 1.5 metre wide and exc 1.5 metre but not exc 3.0 metre in depth, for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. laying cables, pipes, etc. not exc 10 Sqm on plan & not exc 1.5m in depth and getting out in soft/loose soil complete all as specified and as directed. |
| 3 | Returning, filling in, including spreading, leveling watering and well ramming in layers not exc 25 cm thick in soft/loose soil complete all as specified and as directed. |
| 4 | Removing excavated soil/material to a distance not exc 50 metre and depositing where directed at a level not exc 1.50 metre above the starting point complete all as specified and as directed. |
| 5 | Supply, laying, jointing and testing HT XLPE (cross linked polyethylene) insulated, screened, PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty) with aluminium stranded conductor 11000 Volt (Earthed) grade of cross sectional area 150 sqmm, 3 core laid in trenches/ducts, through pipe, under floors or roads/ along poles etc, including dismantling & taking out old unserviceable HT cable, complete all as specified & as directed.Notes:- (i) Sand cushioning, cable protection, GI protection pipe, jointing kits and excavation & earth work shall be measured & paid for separately.(ii) Road cutting/floor cutting /cutting holes etc in walls required for laying/fixing of cable etc shall be made good as per existing. Nothing extra shall be admissible on this account. Quoted rates shall be inclusive of the above provisions. |
| 6 | M&L for sand cushioning using unwashed dry river sand for underground cable 8 cm before laying cable and 15 cm after laying and punned to 18 cm after laying of under ground electric cable complete all as specified and as directed.Notes:- (i) Approved unwashed dry river sand free from vegetations, grass and other deleterious substances shall be used.(ii) For the purpose of payment, only punned thickness shall be measured. |
| 7 | Supplying and laying in replacement of un-reinforced precast concrete cable cover, Class HV, Type I, flat, size 300 mm x 180mm x 40mm confirming to IS -5820 complete all as specified and as directed. |
| 8 | M&L for cable end termination jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for HT XLPE armoured aluminium conductor cable of size 150 sqmm x 3 core including dismantling & taking out old unserviceable jointing kit complete all as specified & as directed. |
| 9 | Supply and fixing steel tubular pole, swaged type, 11 metre long, type 410 SP-55, with mild steel base plate, finial taper plug, bolts, nuts & screws including drilling of necessary holes, with & including painting of poles with one coat of red oxide primer and two coats of aluminium paint (one coat before fixing and one coat of aluminium paint after fixing) over exposed surface and two coats of bituminous paint over embbeded portion & the portion above coping shall be painted in alternate band of black and yellow colour starting with white colour (each band of 30cm wide) by two coats of super enameled paint upto 1.5 metre height from PCC coping and marking pole number in letters & figures of size not less than 10cm height including dismantling steel tubular poles of any size complete all as specified and directed. Note :- Excavation, earthwork, PCC in foundation & coping shall be measured and paid for separately. |
| 10 | M&L in replacement of Galvanized iron tubing, 100mm bore light grade, ISImarked, including all fittings and laid in trenches/under road/drains, fixed to poles/walls with required size of flat iron (25mmx3mm) clamps, bolts, nuts and washers for protection of HT electric cable complete all as specified and directed.Note :- Excavation & earthwork shall be measured & paid for separately. |
| 11 | M&L for PCC 1:4:8 type D2 using 40mm graded crushed stone aggregate as in foundations of poles, filling, mass concrete and similar works, complete all as specified and as directed.Note : Volume of pole/strut embedded in concrete shall be deducted for the purpose of payment. |
| 12 | M&L for PCC (1:3:6) type C-2 using 40mm graded crushed stone aggregate as in foundation for poles, stays & mass concrete including necessary formwork as required and fair finishing complete all as specified and directed. Note : Volume of pole/strut embedded in concrete shall be deducted for the purpose of payment. |
| 13 | M&L for cement concrete 1:2:4 type B1 using 20mm graded crushed stone aggregate as in copings, pedestal of poles and the like including use and waste of formwork (straight or curved), all exposed surface of concrete finished even & smooth without using extra cement, complete all as specified & as directed. Note : Volume of pole/strut embedded in concrete shall be deducted for the purpose of payment. |
| 14 | S&F cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections conforming to Grade E-165 (Fe 290) including nuts, bolts, washers, welding, bending cold or hot, drilled holes for bolts, in any shape or size as directed with & including applying two coats of aluminium paint (under & finishing coats) over a coat of red oxide zinc chromate primer on exposed steel surfaces after preparation of surfaces including dismantling MS work such as cross arms channel, MS clamp, angle section complete all as specified and as directed .Note: (i) Sizes, sections & types of members and shape of the cross arms etc shall be as required at site andall as directed. (ii) Un-exposed steel surfaces shall be given one coat of red-oxide zinc chromate primer only.Cost of the same is included in unit rate of the item and nothing extra shall be paid on this account.(iii) Weight of paint shall not be considered for payment purpose and quoted rate shall deemed to be included this aspect. |
| 15 | S&F in replacement of switch air break, gang operated outdoor, Horizontal operatedtype, HT 11 KV, Triple pole, 400 Amps, 3 insulator per phase, tilting/rocking horizontal type, with fixed contacts of phosphorous bronze and moving contacts of copper, manually operated from ground level with operating mechanism including GI tubing medium grade 25mm bore operating rod, pad locking arrangements, MS arcing horns, flexible braiding earthing blades, rod and contacts without drop out fuse assembly and jumpers with Mink conductor line, taps, clamps, colour coated HT sleeves and fittings suitable for horizontal mounting, complete all as specified and as directed. |
| 16 | Supply and Fixing in replacement of drop Out Fuse unit, expulsion type for outdoor air break gang operated switch,single pole,mounted on and including insulators for 11 KV working pressure fixed to MS channels with nuts,bolts & washers etc,synthetic bounded fuse tube complete suitable for current carrying capacity upto 100 Amps complete all as specified and directed. |
| 17 | M&L for copper earthing in replacement with copper earth plate electrode 60cmx60cmx 3.15mm buried directly in ground (earth pit not less than 3.0 mtr deep below ground level) with top edge of the plate not less than 2.25 mtrs below normal ground level, connecting to copper strip 20x3mm as earthing strip by means of bolts, nut check nut and washers protected with and including 40 mm dia medium grade GI pipe, necessary excavation and earth work, magnesium sulphate (80 Kg) ), charcoal (2 Qtl) and common salt (2 Qtl) filling, watering arrangement with 20 mm GI pipe medium grade including earth pit of PCC M-10 (Nominal mix) using 20mm graded stone aggregate, 50mm thick earth pit cover of RCC M-15 (Nominal mix) using 20mm graded stone aggregate with MS TMT reinforcement bar of 8mm dia @ 150mm centre to centre both ways, MS handle 10mm dia made to shape, PGI funnel, wire mesh with test point,testing (all as shown in electrical plate No 5 and commissioning including dismantling & taking out old existing unserviceable earthing compele all as specified and directed.Note:- On testing, after completion, if the earth resistance below 1 Ohms is not obtained, earthing will rejuvenated at no extra cost till the desired earth resistance is obtined. |
| 18 | M&L for earthing to equipments with & including galvanised mild steel earth plate electrode of size 60 cm x 60 cm x 6mm thick buried vertically in ground (earth pit not less than2.25 m below normal ground level) with top edge of the earth plate at a depth not less than 1.5 m below ground level, the earth electrode surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides, connected to & including galvanized mild steel strip 32x6 mm as earth lead, including nuts, bolts, check nuts & washers of galvanized iron or steel and riveted/ welded to earth plate at one end and other end of strip connected to transformer / GOD / Panel / equipment body / test point with two Nos nuts bolts or welding with steel structure, GI earth strip encased in and including 40mm bore GI light grade pipe with all fittings from upper edges of earth plate upto 7.5 metre above ground level fixed with and including 25x3mm flat iron clamps, bolts, nuts and washer and also including providing watering pipe 20mm bore GI pipe medium grade from earth pit to top of electrode and including funnel, wire mesh, copper lugs etc complete with earth pit in PCC 1:3:6 type C1 using 20mm graded crushed stone aggregate and 40mm thick RCC (1:2:4 type B1) cover complete all as specified and shown in electrical plate No 3 of SSR Part-I including necessary excavation and earthwork in any type of soil, returning, filling in approved soil and disposal of surplus soil to a distance not exc 50m including dismantling & taking out old existing unserviceable earthing complete all as specified and as directed.Note : PCC chamber shall be constructed at least 1.5 mtr away from the earth electrode and pipe for watering shall be provided in slanting manner. |
| 19 | S&F in replacement of earth continuity conductor or main eathing lead copper strip 32mm x 6mm buried in ground, fixed to wall on batten or recess or chases, complete all as specified & as directed. |
| 20 | Supply, installation, testing and commissioning of HT 11 KV Vacuum Cricuit Breaker indoor type suitable for 11 KV having rupturing capacity 350 MVA, 630 Amps, 25 KA for 3 Sec for incomer confirming to IEC 62271-200, class front accessed comprising with items.(a) 630 Amp continuous rated electolytic copper bus bars, droppers and bus bars should be insulated with full system voltage sleeves of Reychem or equivalent.(b) Trolly mounted vacuum circuit breaker as per IEC 62271-100. Vacuum circuit breaker should have three no resin encapsulated vacuum bottles.(c) Motorized spring charging mechanism with integral spring charging handle for manual spring charge.(d) Cast resin current transformer 11 KV, 100-50/5-5A,Core1 : class 1.0, 15 VA, Core 2:5 P10, 15VA(e) Closing & Tripping Coil Suitable for 24 V DC |
| 21 | (f) Cast resin potential transfromer 11 KV/V3/110V/V3/110V/3, 50VA, CI 1.0, CI 3P and HT fuse at the primary end and 04 Pole MCB at the secondary end of the PT.(g) Accessories like local remote switch, breaker control switch (T-N-C), space heater with thermostate, DC & AC control circuit through MCB, indicating Lamps for RYB, Spring charge, DC supply healthy, breaker ON/OFF, breaker in SERVICE/TEST as per manufacturer.(h) Multifunction meter with RS 485 port model No. EM6400 of CONSERV make or equivalent in L&T(j) Digital Ammeter and Digital voltmeter.(k) Master Trip Relay.(l) Comprehensive numerical protection relay as per IEC 61850 compatible for drectional and non directional O/C, E/F , U/V, O/V protection. Make SIEMENS/ L&T/ ALSTOM/ AREVA/ABB Having following additonal facilities:1. Trip ckt supervision.2. Disturbance recorder3. Event log with date and time4. Measurement and control feature |
| 22 | (m)Panel should also have additonal facility like:1.Internittant rated closing and tripping coil.2.Fully internal arc type tested ( 25 KA for 1Sec).3.Vacuum bottles should be epoxy encapsulated.4.Breaker shall be provided with following contacts.5.Racking in/out,manual closing/tripping of CB with compartment door closeda.Auxiliary switch with 6NO + 6NC mounted on the draw out portion of the switchgear.b.Position switches with 3NO + 1NC contacts for each position in service and test.6.Panel height should not exceed 2300 mm.7.Mechanical Operating Counter8.Automatic Safety Shutters9. Secondary Plug in Contacts10.Anti Pumping Relay11.Type test Reports for internal arc test to be submitted alongwith submission of drawings. |
| 23 | COMMON NOTES:(a) Make of HT panel: ABB/SIEMENS/L&T/AREVA/C&S.(b)Drawings for panels shall be got approved from GE before placement of order by contractor.(c)CT ratio as given is tentative and is subject to final approval of GE.(d)Pre-commissiong test of panel shall be caried out be EI from HQ CESWC or rep of AO with in overallquoted rate.(e)Any modification required to match the system with exisitng system is deemed to be included in overall cost qouted by contractor.(f) Pre dispatch inspection of panels can be carried out at factory premise by rep of AO with in overallquoted rate of the item. Decision of AO shall be final in this regards. |
