SPECIAL REPAIR REPLACEMENT OF 4 POLE HT STRUCTURE HT SUPPLY SYSTEM WITH OUTDOORS TYPE VCB CUM RMU AND OUT DOOR TYPE MODERN HT SWITCH GEAR UNDER GE I NAVY JAMNAGAR

Amount

Demolition of brickwork or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars, etcand removal of entire debris as ordered outside MD land complete all as directed.

Dismantling the existing HT 11 Mtr four pole structure complete along with any size & type of cross arm sections , insulators , ACSR busbar of any size,GOD , any size of HT cable (upto 20Rm ) approx etc and relaying the same at new route as required at site as ordered and staking the dismantled items at site or other location where directed by Engineer-in-charge for safe custody .( Note:(i) Excavation & earth work for relaying cable shall be measured & paid under relevant items of this BOQ. (ii) Care should be taken so that damage the existing LT/HT cable network should not be disturbed/damaged.)

Excavating in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for cables & pipe lines, etc. not exceeding 10 sq m on plan and getting out in soft / loose soil complete all as specified.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick with soils.

Removing excavated material not exceeding 50m and depositing where directed at a level not exceeding 1.5 m above the starting point

M&L river sand cushioning for cable protection in trenches 8 cm before laying cable and 15 cm deep over the cable. (Note: Thickness after punning shall be measured for payment)

Supplying and laying unreinforced precast cement concrete cable covers,ISI Marked Class HV, Flat, Type - 1, of size 300 mm X 180 mm X 40mm in trenches for cable protection, embossed with "ELECTRIC" on the top surface complete all as specified and as directed by the Engineer - in - Charge.

Supply & Laying in trenches or fixing on wall or pole XLPE insulated screened PVC bedded, galvanised steel strip or wire, armoured, heavy duty electric power cable (HTUG), 11000 volts grade with stranded aluminium conductor of size 3 core 95 Sqmm including provision of necessary lugs and glands making necessary connection & testing on completion complete all as directed. Note: Necessary excavation and earth work, RFR, removal of surplus spoil, rever sand cushioning & PCC cover slab for cable protection shall be measured and paid separately.).

Material and labour for cable jointing kit for 11KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 11 KV 3 Phase , AC , 50 Hz core XLPE armoured aluminium conductor cable of size 95 to 120 Sqmm with complete jointing materials & accessories and finally testing after jointing all as specified and directed.

Material and labour for cable jointing kit for 11KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for11 KV 3 Phase , AC , 50 Hz core XLPE armoured aluminium conductor cable of size 95 to 120 Sqmm with complete jointing materials & accessories and finally testing after jointing all as specified and directed.

Supply install testing and commissioning of 11 KV, 630 Amps, 21 KA / 3 Sec, SF6 insulated CVCC, outdoor Non-Extensible fixed type (IP54),RMU (Ring Main Unit) 4 way compresing of 03 Nos 630Amps,motorized operated Load Break Switch & 01 Nos motorized charging fixed -type Vaccum Circuit Breaker, inside robotically welde stainless steel 304 (( Non Ferrite Non Megnetic Grade) tank having min thickness 3+0.5 mm wih IP 67 Degree of protection and enhanced BIL of 95kvp internally to manage surges. RMU should be provied with internal copper busbars 630 Amps, as well as earthing busbars of electrolytic grade copper , padlock provisions& complete with all accessories. The RMU shall be type tested for Internal arc test of AFL 21ka/1 Sec for tank as per IEC62271-200. RMU shall have on-site- repairability features such as site replaceble bushing/coupling/mechanisum and gas refilling at site. The earthing busbar shall be provided inside each cable compartment for soilid earthing of Cable sheilds. The outer hinged main door should cover entire front of switchgear including cable doors for providing fail-safe protection. The unit shall include the following with all necessary fitting as required at site complete all as specified and as directed by the Engineer - in - Charge.Incuding PCC foundation as recommended by manufacturer Make:- ABB,Schneider,Siemens (A) 03 Nos Incoming and outgoing Load Break Switch module consisting of following accessories:- (i) 11 kv, 630A Load Break Switch modual and integrated earting switch , both with full making capacity. (ii) Short time current - 21KA/3-sec, Making Capacity - 52kAp (iii) Auxiliary contacts - 1 No+ 1 NC (iv) Spring-assisted snap-action mechanism drive via motor and manual operation . (v) Cable boxes with double-door arrangement for enhanced safety (IP54+IP3X) interloked to prevent acces to 3Cx300Spmm XLPE AL cable termination in live-condition. (vi) Right angle boots (push on type) (vii) Suitable site replacable cable bushings situated not beyoned 300mm from cable-cover to allow ease of access for installation /testing /replacement purposes. (viii) Cable cover with self Interlocking mechannism with earth switch (ix) Capacitive voltage indication fixed type system as per IEC61243. (B) 01 Nos Outgoing Breaker module consisting of follwing accessories:- (i) 11 KV , 630A fixed-type Vaccum Circuit Breaker Module for making and breaking of fault current alongwith disconnector+Earth Switch of full making capacity. (ii) Short time current - 21KA/3 Sec, Making Capacity - 52kAp (iii) Auxiliary contacts - 1No+1NC

(iv) Stored Enegry mechanism with manual and motorized spring-charging,associated closing/tripping coils integrated non-removable spring-charging handle and ON/OFF push buttons mechanically latched to the mechanism. (v) Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm, 11 KV XLPE Cable with double-door arrangement(IP54+IP3X). Safety interlocked to prevent access to cable termination in live-condition. (vi) Right angle boots (push on type) (vii) Numerical based self-powered OC+EF Protection Relay, providing OverCurrent (min Setting 20%),Earth - Fault (min setting : 10%) (viii) 03 Nos 100/1, 2.5VA epoxy insulated, Ring core CTs for protection (Acc.CI,5P10), installed away from bushings to prevent saturation of core. (ix) Suitable site replacable cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes. (x) Cable covers with self Interlocking mechanism between door, earth switch, disconnectors & VCB compraising as under: (a) Battery (24V DC) and battery charger (7.5A,230V AC/24V DC) (b) Capacitive voltage indication fixed type VPIS-9-15KV (c) Necessary interclocking arrangement for safety and operations. (d) One No Operation Handle for manual operation and one no manometer (e) Safety Interlocks shall be provided as per IEC/IS Standards and manufactures directions. (f) Above switchgear shall confirm to all relevant IEC/IS Standards. (g) Vaccum Interrupter should be of same make as RMU (h) Cable bushing should be replacable at site. (j) Minimum 5 module should accommodate in one tank to avoid multiple coupling at site.

Supply install testing and commissioning of HT 11 KV, 3 Phase, 50 Hz,totally inclosed metal clad SF6 switchgear having rupturing capacity upto 630 Amps, 21 KA / 3 Sec, SF6 insulated CCV, outdoor Non-Extensible fixed type (IP54),RMU (Ring Main Unit) 3-way compresing of 02 Nos 630Amps,motorized operated Load Break Switch & 01 Nos. motorized charging fixed -type Vaccum Circuit Breaker, inside robotically welded stainless steel 304 ( Non Ferrite Non Megnetic Grade) tank having min thickness 3+0.5 mm wih IP 67 Degree of protection and enhanced BIL of 95kvp internally to manage surges. RMU should be provied with internal busbars, as well as earthing busbars of electrolytic grade copper , padlock provisions & complete with all accessories. The RMU shall be type tested for Internal arc test of AFL 21kA/1 Sec for tank as per IEC62271-200. RMU shall have on-site- repairability features such as site replaceble bushing/coupling/mechanisum and gas refilling at site. The earthing busbar shall be provided inside each cable compartment for soilid earthing of Cable shields. The outer hinged main door should cover entire front of switchgear including cable doors for providing fail-safe protection. The unit shall include the following with all necessary fitting as required at site complete all as specified and as directed by the Engineer - in - Charge.Incuding PCC foundation as recommended by manufacturer Make:- ABB,Schneider,Siemens (A) 02 Nos Incoming and outgoing Load Break Switch module consisting of following accessories:- (i) 11 kv, 630A Load Break Switch modual and integrated earting switch , both with full making capacity. (ii) Short time current - 21KA/3-sec, Making Capacity - 52kAp (iii) Auxiliary contacts - 1 No+ 1 NC (iv) Spring-assisted snap-action mechanism drive via motor and manual operation . (v) Cable boxes with double-door arrangement for enhanced safety (IP54+IP3X) interloked to prevent acces to 3Cx300Spmm XLPE AL cable termination in live-condition. (vi) Right angle boots (push on type) (vii) Suitable site replacable cable bushings situated not beyoned 300mm from cable-cover to allow ease of access for installation /testing /replacement purposes. (viii) Cable cover with self Interlocking mechannism with earth switch (ix) Capacitive voltage indication fixed type system as per IEC61243. (B) 01 Nos Outgoing Breaker module consisting of follwing accessories:- (i) 11 KV , 630A fixed-type Vaccum Circuit Breaker Module for making and breaking of fault current alongwith disconnector+Earth Switch of full making capacity. (ii) Short time current - 21KA/3 Sec, Making Capacity - 52kAp (iii) Auxiliary contacts - 1No+1NC

(iv) Stored Enegry mechanism with manual and motorized spring-charging,associated closing/tripping coils integrated non-removable spring-charging handle and ON/OFF push buttons mechanically latched to the mechanism. (v) Interlocked Cable box for front termination of the cable suitable upto 3 core 300 Sqmm, 11 KV XLPE Cable with double-door arrangement(IP54+IP3X). Safety interlocked to prevent access to cable termination in live-condition. (vi) Right angle boots (push on type) (vii) Numerical based self-powered OC+EF Protection Relay, providing OverCurrent (min Setting 20%),Earth - Fault (min setting : 10%) (viii) 03 Nos 100/1, 2.5VA epoxy insulated, Ring core CTs for protection (Acc.CI,5P10), installed away from bushings to prevent saturation of core. (ix) Suitable site replacable cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes. (x) Cable covers with self Interlocking mechanism between door, earth switch, disconnectors & VCB comprising as under: (a) Battery (24V DC) and battery charger (7.5A,230V AC/24V DC) (b) Capacitive voltage indication fixed type VPIS-9-15KV (c) Necessary interclocking arrangement for safety and operations. (d) One No Operation Handle for manual operation and one no manometer (e) Safety Interlocks shall be provided as per IEC/IS Standards and manufactures directions. (f) Above switchgear shall confirm to all relevant IEC/IS Standards. (g) Vaccum Interrupter should be of same make as RMU (h) Cable bushing should be replacable at site. (j) Minimum 5 module should accommodate in one tank to avoid multiple coupling at site.

M&L Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised earth lead 32x6 mm GI strip, 7 m long means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected or indicated including testing necessary excavation, earth work, PCC pit, RCC cover Reinforced with 8 mm TMT bars both ways, funnel with watering pipe 20mm bore medium grade, GI protection pipe 40 mm bore light grade complete all as specified.

M/s. Vimal Enterprise

M/s SK Traders

JAYESH TRADING CORPORATION

MORESHWAR ELECTRICALS CORPORATION

JAMNAGAR ELECTRIC AND MACHINERY CO

NAVREET CONSTRUCTION