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| 1 | Supply, laying & testing cable HT XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 95 sq mm(earthed)ISI marked as per IS 7098 part I laid in trenches/ laid under floors/ laid under ducts or fixed on poles etc, complete all as specified and as directed.Note : (i) Sand cushioning, cable protection, GI protection pipe, clamps, 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.). |
| 2 | Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm 3 core complete all as specified and as directed. |
| 3 | Supply and fix cable jointing kit for 11 KV grade cable for indoor termination, heat shrink type, joint complete with jointing material and accessories suitable for3 core XLPE, armoured, aluminium conductor cable of size 95 sqmm 3 core complete all as specified and as directed. |
| 4 | Material and labour in replacement for provision of earthing complete with galvanized iron earth plate electrode 600 mm x 600 mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5 m deep below normal ground connected to galvanised mild steel strip 24X4 mm by means of bolts, nuts, check nuts and washer of galvanized steel, watering pipe of 20 mm bore galvanised iron medium grade and 40 mm bore galvanised iron light grade for earth strip protectionincluding all excavation, earth work in any type of soil, PCC pitin PCC 1:2:4 type B-1 and RCC 1:2:4, type B1 for precast chamber cover 50 mm thick, reinforced with welded steel wire fabric or XPM Jali (weight not less than 4.00 Kg / sqm),with charcoal, salt, funnel complete all as shown in the electrical plate No 3 of SSR part –I and testing on completion. Note: (i)Earth result after installation completely should be less than 3 Ohm (ii)Quoted rates shall be deemed to include for earth strip with protection pipe of 7.5 M length. (iii) Black soil to be arranged by the conrteractorfor mixing charcol,Crystal salt,Magnesium sulphate & Vegitable oiland also for filling balance portion of pit in layer is deemed to be included in quoted rate(iii) Tools and plants to be required for making depthupto 4 Mtr is to be arranged by the contractor,charges for the same is included in the quoted rate |
| 5 | Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard / dense soil/ RCC/PCC |
| 6 | Returning, filling in trenches (soil), including spreading, leveling and well ramming in layers not exceeding 25 cm thick, complete all as specified and directed. |
| 7 | Removal of surplus excavated soil to a distance not exceeding50metre and depositing where directed at a level not exceeding1.5metre above the starting point,complete all as specified and directed. |
| 8 | Material and labour, sand cushioning with a layer of dry river sand, 80mm thick before laying of cable and 150mm thick (punned down to 100mm thick) after laying of cables, in trenches/ducts, complete all as specified and directed. Note : Punned down thickness (overall 18cm), shall be considered for measurement and payment. |
| 9 | Supply and layingun-reinforced precast concrete cable cover, classHV, Type 1, flat, size 300 mm x 180mm x 40mm complete all as specified and directed. |
| 10 | M&L for 100mm dia steel tubes (light grade) galvanised with fittings, laid in trenches/wall/under road for protection of underground cable when crossing the road/fixing all as specified and as directed. |
| 11 | M & L Hard core, broken stone to gauge n exc 63 mm complete all as specified and directed. |
| 12 | M & L Cement concrete in foundations, filling and mass concrete Type C2 1:2:4 (40mm grade aggregate ) complete all as specified and directed. |
| 13 | Supply and fixing Cable route indicator made of PCC HT line route indicator of size 450mm x 230 mm x 50mm above, the ground and 250mm in depth complete with Brown colour duly engraved, MES HT cable and distance/ location as directed by E-ingineer-in Charge complete all as specifide and directed. |
| 14 | Supply install testing and commissioning ofof outdoor type , 03 way RMU (Ring Main Unit) 11 KV, 630 Amps, 25kA-3 Sec, IP 54 SF6 insulated, One side Extensible,consisting of one Nos (01) motoraised Load break switch (Incomer) and two Nos (02) motorised vacuum circuit breaker (Outgoing) & Metering Panel Bus PT and Aux. transformerwith Top LV, Battery & Battery charger, Ethernet switch(Configuration CVV+M) inside robotically welded stainless steel 304 (Non Ferrite non Magnetic Grade) tank having min thickness 2.5 +/- 0.5mm with IP 67 degree of protection and enhanced BIL of 75 kVp internally to manager voltage surges and Air Insulated Metering Module of Class-0.5. RMU should be provided with internal busbars, as well as earthing busbars of electrolytic grade copper, padlock provisions & complete with all accessories. The complete RMU must be type tested for Internal arc21 KA for 1 sec with AFLR Classification for Gas tank & Cable Chamber as per IEC 62271-200. HT RMU shall preferably have on-site-repairability features such as site replaceable bushing/ coupling/ mechanism and gas refilling to have very less downtime in the event of bushing breakage and restoration can be done at site immediately without sending the RMU to OEM Works, the Vaccum Interrupter must RMU manufacturer\"s own make. The earthing busbar shall be provided inside each cable compartment for solid earthing of cable shields. The outer hinged main door should cover entire front of switchgear including cable doors for providing fail-safe protection complete all as specified and as directed. The unit shall include the following with all necessary standard fitting as required at site. |
| 15 | (a) Load Break Switch consist of following accessories :-(i) SafePlus type C: Cable switch 12kV, 630A 21 KA/ 3sec (ii)Snap action mechanism for Motorised operation, Control Voltage: 24V DC(iii)Integrated earth switch making fault type manual operation (ES) (v) Right angle boot to be provided in each module (vi)Fault passage indication system EF+SC Make: C&S (for LHS LBS only) (vii)Cable covers with self Interlocking mechanism between doors, earth switch, disconnector & VCB.viii)Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm,11 KV XLPE cable (IP3X). Safety interlocked to prevent access to cable termination in live-condition. (ix)Cable covers with self Interlocking mechanism between doors & earth switch,(xi)Necessay interclocking arrangement for safety and operations |
| 16 | (B) Vacuum Circuit Breaker consist of following accessories :-(i) Safeplus type Vacuum circuit breaker 12 KV ,630A,21 KA/Sec Stored energy mech. for Motorized Operation, 24V DC , Integrated manually operated disconnector switch (DS) and earth switch fault making type (ES) (ii)Microprocessor based Numerical Protection Relay for Circuit Breakers - REX615, Feeder Protection and Control Relay, Protections 50,51,50N,51N,46,49,67,67N,32,27,59,25,81U,81O,95, Measurement for 3I,I0,3U,U0,Kw,KVA,PF,Hz,Kwh, 16 DI + 10 DO, One front RJ45 Port, One Rear RJ45 Port for IEC-61850 Protocol, Drawout Type with CT Shorting feature, Graphical LCD Display (iii)Capacitive voltage indication fixed type system with LED for all feeder and FPI in all load break switch feeder. (iv)SF6 Gas pressure indicator on the gas tank.(v)Operating sequence of VCB must be O-0.3Sec-CO-3 Mins-CO amd suitable for 10,000 mechanical operation. (vi)CT shall be minimum 40/1A ,2.5VA , 5P10 - 3 nos. for protection (vii)CT shall be minimum 40/1A ,2.5VA , Class 0.5 - 3 nos. for metering (viii)Right angle boot to be provided in each module (ix)Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm,11 KV XLPE cable (IP3X). Safety interlocked to prevent access to cable termination in live-condition. (x)Cable covers with self Interlocking mechanism between doors, earth switch, disconnector & VCB. (xi)Necessay interclocking arrangement for safety and operations (xii) Multifunction meter, |
| 17 | (C) BUS PT Metering Module Unit :(i) Indication lamps – “R”, “Y” & “B (ii)Bus VT shall be 11KV/V3/110V/V3 ,20VA , Class 0.5 - 3 nos. for metering (iii)Auxiliary VT shall be 11KV/230 ,500VA for AC supply input to Battary Charger. (iv)Space Heater with thermostat |
| 18 | D) Additional equipment(i) temprature compansated SF-6 gas monitoring manometer(ii) One No. Operationg Handle for Manual Operation(i)2 x12 Volts, 26 AH Battary with Charger - 1 Set Above switchgear shall confirm to all relevant IEC/IS Standards and PCC Foudatinincluding earth work as per manufacturors insutruction |
