PROVISION OF HT RING MAIN SYSTEM FOR CERTAIN SUB STATIONS AND SPECIAL REPAIRS TO CERTAIN HT UG CABLE NETWORK AT NAVAL BASE KOCHI

Amount

Supply, install, extension to and connecting up to existing ABB make outdoor RMU, testing and commissioning of outdoor IP 54 both side extensible HT 12 KV rated voltage and 11 KV operating voltage, 3 phase 50 Hz, one way Ring Main Unit comprising one load break isolator (+C+) and with motor assembly, SCADA compatible, totally enclosed metal clad switch gear, having rated current of Ring Switch is 630 Amp,21 kA for 3 seconds, copper bus bar with danger notice board, with factory made weather proof CRCA sheet enclosure of minimum thickness 3.15 mm (or as per manufacturers design ) by the switchgear manufacturer and connecting existing cable to RMU. The unit shall be painted in RAL7012/7032/7035 paint shade with folowing specifications and all as per the IEC 62271 –200.

(a) Ring Switch/Isolator (i) Capacity 11 KV, HT, 630 Amps. Triple pole, single break, having three position ('ON', 'OFF' and 'EARTH') Ring Main Switches, each with independent motor charged spring mechanism and fully rated earth switch. (ii) Air insulated cable boxes with gland plate suitable for bottom entry of single run of three core cable up to 300 sqmm. (iii) Cable Bushings (iv) Capacitive Voltage Indicator with LED Display. (v) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly (vii) Fault Passage Indicator (viii) Angle Boots-NON TOUCH PROOF.

(b) General spacifications : (i) One set of positive standard mechanical interlocks to avoid unsafe operations. (ii) Provision of pad locking for open, close, earth position in correct sequence. (iii) Mano meter for indicating SF6 gas pressure with green and red zone. (iv) Minimum 2.5 mm thick stainless steel SF6 tank with robotically welded construction with IP67 protection. (v) External stud for earthing connections. (vi) SF6 Gas re filling provision. (vii) Extendable bushings for future extension with metallic end cap cover. (viii) Necessary weather protection roofing using galvolume sheet to be provided and cost should be deemed in the quoted rate. (ix) Foundation for RMU as per the recommendation of manufacturer.

Supply, install, extension to and connecting up to existing Lucy make outdoor RMU, testing and commissioning of outdoor IP 54 both side extensible HT 12 KV rated voltage and 11 KV operating voltage, 3 phase 50 Hz, one way Ring Main Unit comprising one load break isolator (+C+) and with motor assembly, SCADA compatible, totally enclosed metal clad switch gear, having rated current of Ring Switch is 630 Amp,21 kA for 3 seconds, copper bus bar with danger notice board, with factory made weather proof CRCA sheet enclosure of minimum thickness 3.15 mm (or as per manufacturers design ) by the switchgear manufacturer and connecting existing cable to RMU. The unit shall be painted in RAL7012/7032/7035 paint shade with folowing specifications and all as per the IEC 62271 –200.

(a) Ring Switch/Isolator (i) Capacity 11 KV, HT, 630 Amps. Triple pole, single break, having three position ('ON', 'OFF' and 'EARTH') Ring Main Switches, each with independent motor charged spring mechanism and fully rated earth switch. (ii) Air insulated cable boxes with gland plate suitable for bottom entry of single run of three core cable up to 300 sqmm. (iii) Cable Bushings (iv) Capacitive Voltage Indicator with LED Display. (v) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly (vii) Fault Passage Indicator (viii) Angle Boots-NON TOUCH PROOF.

(b) General spacifications : (i) One set of positive standard mechanical interlocks to avoid unsafe operations. (ii) Provision of pad locking for open, close, earth position in correct sequence. (iii) Mano meter for indicating SF6 gas pressure with green and red zone. (iv) Minimum 2.5 mm thick stainless steel SF6 tank with robotically welded construction with IP67 protection. (v) External stud for earthing connections. (vi) SF6 Gas re filling provision. (vii) Extendable bushings for future extension with metallic end cap cover. (viii) Necessary weather protection roofing using galvolume sheet to be provided and cost should be deemed in the quoted rate. (ix) Foundation for RMU as per the recommendation of manufacturer.

Supply, install, testing and commissioning of outdoor, both side extendable HT 12 KV rated voltage and 11 KV operating voltage,21 kA for 3 seconds, 3 phase 50 Hz,IP 54, SCADA compatible,motorised, three way Ring Main Unit (+CCC+) Type : three load break motorised isolators, battery charger, totally enclosed metal clad switch gear 24 volt DC battery bank and charger, having rated current of Ring Switch and Breaker is 630 Amp, copper bus bar with danger notice board with factory made weather proof CRCA sheet enclosure of minimum thickness 3.15 mm (or as per manufacturers design ) by the switchgear manufacturer and with internal arc classification with AFLR with 21 kA for one second connecting existing cables to new RMU. The unit shall be painted in RAL7012/7032/7035 paint shade with folowing specifications and all as per the IEC 62271 –200.

(a) Ring Switch/Isolator (i) Capacity 11 KV, HT, 630 Amps. Triple pole, single break, having three position ('ON', 'OFF' and 'EARTH') Ring Main Switches, each with independent motor charged spring mechanism and fully rated earth switch. (ii) Air insulated cable boxes with gland plate suitable for bottom entry of single run of three core cable up to 300 sqmm. (iii) Cable Bushings (iv) Capacitive Voltage Indicator with LED Display. (v) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly (vii) Fault Passage Indicator (viii) Angle Boots-NON TOUCH PROOF.

(b) General spacifications : (i) One set of positive standard mechanical interlocks to avoid unsafe operations. (ii) Provision of pad locking for open, close, earth position in correct sequence. (iii) Mano meter for indicating SF6 gas pressure with green and red zone. (iv) Minimum 2.5 mm thick stainless steel SF6 tank with robotically welded construction with IP67 protection. (v) External stud for earthing connections. (vi) SF6 Gas re filling provision. (vii) Extendable bushings for future extension with metallic end cap cover. (viii)Battery with charger. (ix) Necessary weather protection roofing using galvolume sheet to be provided and cost should be deemed in the quoted rate. (x) Foundation for RMU as per the recommendation of manufacturer.

Supply, install, testing and commissioning of indoor IP 4X, both side extendable HT 12 KV rated voltage and 11 KV operating voltage,21 kA for 3 seconds, 3 phase 50 Hz, SCADA compatible,motorised,four way Ring Main Unit (+CCCV+) Type : one fixed vacuum circuit breaker duly interlocked, and three load break motorised isolators, battery charger, totally enclosed metal clad switch gear 24 volt DC battery bank and charger, protection relays, having rated current of Ring Switch and Breaker is 630 Amp, copper bus bar with danger notice board with factory made weather proof CRCA sheet enclosure of minimum thickness 3.15 mm (or as per manufacturers design ) by the switchgear manufacturer and with internal arc classification with AFLR with 21 kA for one second including connecting existing cables to new RMU. The unit shall be painted in RAL7012/7032/7035 paint shade with folowing specifications and all as per the IEC 62271 –200.

(a) Ring Switch/Isolator (i) Capacity 11 KV, HT, 630 Amps. Triple pole, single break, having three position ('ON', 'OFF' and 'EARTH') Ring Main Switches, each with independent motor charged spring mechanism and fully rated earth switch. (ii) Air insulated cable boxes with gland plate suitable for bottom entry of single run of three core cable up to 300 sqmm. (iii) Cable Bushings (iv) Capacitive Voltage Indicator with LED Display. (v) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly (vii) Fault Passage Indicator (viii) Angle Boots-NON TOUCH PROOF.

(b) Vacuum Circuit Breaker : (i) Capacity 630 Amps, Triple pole, Vacuum Circuit Breaker, with independent motor charged spring mechanism and fully rated earth switch, with provision for earth of the cable. (ii) Air insulated cable box with gland plate suitable for bottom entry of single run of 3-core cable up to 300 sqmm. (iii) multi powered Over current, Earth Fault and short circuit three element numerical Relay with digital display(iv) Resin cast current transformers for protection mounted on Cable / cable box of ratio 100-50/1A, 5P10, 2.5VA. (v) Capacitive Voltage Indicators with LED Display. (vi) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly. (vii) Epoxy Moulded low energy Tripping Coil for tripping the circuit breaker in fault condition. (viii) Right Angle Boots-NON TOUCH PROOF. (ix) Make of RMU and VCB bottles should be same.

(c) General spacifications : (i) One set of positive standard mechanical interlocks to avoid unsafe operations. (ii) Provision of pad locking for open, close, earth position in correct sequence. (iii) Mano meter for indicating SF6 gas pressure with green and red zone. (iv) Minimum 2.5 mm thick stainless steel SF6 tank with robotically welded construction with IP67 protection. (v) External stud for earthing connections. (vi) SF6 Gas re filling provision. (vii) Extendable bushings for future extension with metallic end cap cover. (viii)Battery with charger. (ix) Foundation for RMU as per the recommendation of manufacturer.

Supply, install, testing and commissioning of outdoor, both side extendable HT 12 KV rated voltage and 11 KV operating voltage,21 kA for 3 seconds, 3 phase 50 Hz,IP 54 SCADA compatible,motorised, four way Ring Main Unit (+CCCV+) Type : one fixed vacuum circuit breaker duly interlocked, and two load break motorised isolators, battery charger, totally enclosed metal clad switch gear 24 volt DC battery bank and charger, protection relays, having rated current of Ring Switch and Breaker is 630 Amp, copper bus bar with danger notice board with factory made weather proof CRCA sheet enclosure of minimum thickness 3.15 mm (or as per manufacturers design ) by the switchgear manufacturer and with internal arc classification with AFLR with 21 kA for one second including connecting existing cables to new RMU. The unit shall be painted in RAL7012/7032/7035 paint shade with folowing specifications and all as per the IEC 62271 –200.

(a) Ring Switch/Isolator (i) Capacity 11 KV, HT, 630 Amps. Triple pole, single break, having three position ('ON', 'OFF' and 'EARTH') Ring Main Switches, each with independent motor charged spring mechanism and fully rated earth switch. (ii) Air insulated cable boxes with gland plate suitable for bottom entry of single run of three core cable up to 300 sqmm. (iii) Cable Bushings (iv) Capacitive Voltage Indicator with LED Display. (v) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly (vii) Fault Passage Indicator (viii) Angle Boots-NON TOUCH PROOF.

(b) Vacuum Circuit Breaker : (i) Capacity 630 Amps, Triple pole, Vacuum Circuit Breaker, with independent motor charged spring mechanism and fully rated earth switch, with provision for earth of the cable. (ii) Air insulated cable box with gland plate suitable for bottom entry of single run of 3-core cable up to 300 sqmm. (iii) multi powered Over current, Earth Fault and short circuit three element numerical Relay with digital display(iv) Resin cast current transformers for protection mounted on Cable / cable box of ratio 60-30/1A, 5P10, 2.5VA. (v) Capacitive Voltage Indicators with LED Display. (vi) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly. (vii) Epoxy Moulded low energy Tripping Coil for tripping the circuit breaker in fault condition. (viii) Right Angle Boots-NON TOUCH PROOF. (ix) Make of RMU and VCB bottles to be same.

(c) General spacifications : (i) One set of positive standard mechanical interlocks to avoid unsafe operations. (ii) Provision of pad locking for open, close, earth position in correct sequence. (iii) Mano meter for indicating SF6 gas pressure with green and red zone. (iv) Minimum 2.5 mm thick stainless steel SF6 tank with robotically welded construction with IP67 protection. (v) External stud for earthing connections. (vi) SF6 Gas re filling provision. (vii) Extendable bushings for future extension with metallic end cap cover. (viii)Battery with charger. (ix) Necessary weather protection roofing using galvolume sheet to be provided and cost should be deemed in the quoted rate. (ix) Foundation for RMU as per the recommendation of manufacturer.

Supply, install, testing and commissioning of outdoor, both side extendable HT 12 KV rated voltage and 11 KV operating voltage,21 kA for 3 seconds, 3 phase 50 Hz,IP 54, SCADA compatible,motorised, three way Ring Main Unit (+CCV+) Type : one fixed vacuum circuit breaker duly interlocked, and two load break motorised isolators, battery charger, totally enclosed metal clad switch gear 24 volt DC battery bank and charger, protection relays, having rated current of Ring Switch and Breaker is 630 Amp, copper bus bar with danger notice board with factory made weather proof CRCA sheet enclosure of minimum thickness 3.15 mm (or as per manufacturers design ) by the switchgear manufacturer and with internal arc classification with AFLR with 21 kA for one second and connecting existing cables to new RMU. The unit shall be painted in RAL7012/7032/7035 paint shade with folowing specifications and all as per the IEC 62271 –200.

(a) Ring Switch/Isolator (i) Capacity 11 KV, HT, 630 Amps. Triple pole, single break, having three position ('ON', 'OFF' and 'EARTH') Ring Main Switches, each with independent motor charged spring mechanism and fully rated earth switch. (ii) Air insulated cable boxes with gland plate suitable for bottom entry of single run of three core cable up to 300 sqmm. (iii) Cable Bushings (iv) Capacitive Voltage Indicator with LED Display. (v) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly (vii) Fault Passage Indicator (viii) Angle Boots-NON TOUCH PROOF.

(b) Vacuum Circuit Breaker : (i) Capacity 630 Amps, Triple pole, Vacuum Circuit Breaker, with independent motor charged spring mechanism and fully rated earth switch, with provision for earth of the cable. (ii) Air insulated cable box with gland plate suitable for bottom entry of single run of 3-core cable up to 300 sqmm. (iii) multi powered Over current, Earth Fault and short circuit three element numerical Relay with digital display(iv) Resin cast current transformers for protection mounted on Cable / cable box of ratio 60-30/1A, 5P10, 2.5VA. (v) Capacitive Voltage Indicators with LED Display. (vi) Mimic diagram on front panel, complete with status indicators (ON-OFF-EARTH). (vi) Motorised assembly. (vii) Epoxy Moulded low energy Tripping Coil for tripping the circuit breaker in fault condition. (viii) Right Angle Boots-NON TOUCH PROOF. (ix) Make of RMU and VCB bottles to be same.

(c) General spacifications : (i) One set of positive standard mechanical interlocks to avoid unsafe operations. (ii) Provision of pad locking for open, close, earth position in correct sequence. (iii) Mano meter for indicating SF6 gas pressure with green and red zone. (iv) Minimum 2.5 mm thick stainless steel SF6 tank with robotically welded construction with IP67 protection. (v) External stud for earthing connections. (vi) SF6 Gas re filling provision. (vii) Extendable bushings for future extension with metallic end cap cover. (viii)Battery with charger. (ix) Foundation for RMU as per the recommendation of manufacturer. (x) Necessary weather protection roofing using galvolume sheet to be provided and cost should be deemed in the quoted rate.

Supply and laying cables in trenches, or fixing on walls or passing through cable duct / pipe XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cables (heavyduty) with aluminium conductor, 11000 volts, earthed grade having cross sectional area 3 core 185 sqmm all as specified and as directed.

S&F cable jointing kit for 11 KV grade for indoor termination, heat shrink type joint with complete jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 Sqmm all as specified and as directed.

S&F cable jointing kit for 11 KV grade for straight through, heat shrink type joint with complete jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 Sqmm all as specified and as directed.

Materials and labour for earthing complete with galvanised iron earth plate electrode of size 600 mm x 600 mm x 6 mm thick, burried directly and preferably vertically in ground, earth pit not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 m below ground level connetced with and including galvanised earth strip of size 32 x 6mm by means of nuts, bolts, check nuts and washers made of galvanised iron or steel earthing lead to be protected by galvanised iron pipe 40 mm bore (medium grade) and other end connected upto system or lightening arrestor or main controlling switch as directed including providing funnel with 20mm bore galvanised iron pipe (light grade), wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness) all round the earth electrode, concrete earth pit in PCC (1:3:6) type C-1 (with 20mm graded aggregate), 50mm thick precast RCC (1:2:4) cover slab (re-inforced with 8mm dia TMT bar @ 15 cm C/C bothways and suitable handle made of 10mm dia) including necessary earth work in excavation, returning filling and removal of surplus earth upto a distance not exceeding 50 m etc all as shown on electrical plate No. 3 of MES Schedule Part-I(2009) complete including testing on completion all as specified and as directed by the Engr-in-Charge.

Material and labour for earth continuity conductor or main earthing strip fixed to wall on batten or porcelain insulators or recess or chases or buried in ground or drawn in GI pipe 40 mm or fixed with poles or any other indicated sitution for loop earthing etc as required using galvanised iron strip of size 32 X 6 mm complete all as directed. NOTE :- (i) GI Pipe 40 mm shall be measured and paid separately

Material and labour for 40 mm bore MS tubes light grade galvanised, with all fittings laid in trenches or walls or for passing earth strip, etc , complete including taking down old item all as specified and as directed.

Supplying and laying insulated mats of sizes 2m x 1m ISI marked for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety all as specified and as directed.

Supply and laying cables in trenches, or fixing on walls or passing through cable duct / pipe XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cables (heavyduty) with aluminium conductor, 1100 volts, grade having cross sectional area 2 core 4 sqmm all as specified and as directed.

M&L for PCC 1:3:6 type C2 (using 40mm graded stone aggregate) including necessary form work as in foundation, filling and mass concrete complete all as specified and as directed.

Excavation in tenches not exceeding 1.5M in depth and not exceeding 1.5M wide for laying pipes and getting out in soft/loose soil all as specified and as directed.

Returning fitting in soil inclduing spreading, leveling , watering and well ramming in layers not exceeding 25 cm all as specified and as directed.

Removing excavated materials not exceeding 50 Mtr depositing out sid MD land at a level not exceeding 1.5 mtr above the starting point all as specified and as directed.

M & L for riddled sand filling in trenches for cushioning of HT cables punning after filling complete as specified and as directed Note: Punned thickness shall only be measured and paid

Supply and lay un-reinforced precast concrete cable cover , class ,HV , Type I as per IS -5820 with flat size 300 x 180 x 40 mm laid dry in treches over under ground cables complete all as specified and as directed.

Supply and lay un-reinforced precast concrete cable cover , class ,LV , Type I as per IS -5820 with flat size 250 x 150 x 40 mm laid dry in treches over under ground cables complete all as specified and as directed.

Supply and laying cables in trenches, or fixing on walls or passing through cable duct / pipe XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cables (heavyduty) with aluminium conductor, 11000 volts, (earthed )grade having cross sectional area 3core 240 sqmm all as specified and as directed.

Supply and laying cables in trenches, or fixing on walls or passing through cable duct / pipe XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cables (heavyduty) with aluminium conductor, 11000 volts,(earthed) grade having cross sectional area 3 core 300 sqmm all as specified and as directed.

S&F cable jointing kit for 11 KV grade for indoor termination, heat shrink type joint with complete jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 to 300 Sqmm all as specified and as directed.

S&F cable jointing kit for 11 KV grade(earthed ) for straight through , heat shrink type joint with complete jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 to 300 Sqmm all as specified and as directed.

M&L for cold mixed bitumen (packet type) for making good the surface of road cutting,rolling as directed by the Engineer-in-Charge and finishing the surface to match with the existing surface all as specified and as directed.

Taking down cables from trenches 11000 volts,grade having cross sectional area 3 core 185 /240 /300 Sqmm all as specified and as directed.

M&L for spreading the yard with broken stone yard core of gauge not exceeding 63 mm size ,spread and levelled in layers not exceeding 150mm thick complete all as specified and as directed.

S&F cable route indicator over the HT cables made out of cast iron block of size 15x10 cm and thicknes 10 mm fixed with MS strip of size 32x4 mm upto length 75 mm and marked with 'MES HT Cable 185 /240 /300 Sqmm ' as required on cast iron block including necessary PCC and earth work etc complete all as specified and directed.

M & L 100 mm bore High density polyethylene pipes (HDPE) PN 10 laid in trenches/Wall/road crossing for suitable length as per sire requirement all as specified.

S&F danger notice plate 11KV allas specified and as directed.

M&L for dismantling unserviceable chain link fencing,wire mesh etc of any type all as specified and as directed.

S&F PVC coated MS chain link fencing of mesh size 50 x50 mm , 4 mm dia PVC coated line wire,rails,straining bolts etc including provision of binding wire etc complete all as specified and as directed.

Excavation in post holes (or similar holes) each n.exe 0.5 cum, getting out returning filling in and ramming earth or broken rubble mixed with earth around, in layers not exc 25 cm watering and removing surplus soil to a distance n.exc 50 m and making good surface in soft/loose soil all as specified and as directed .

S&F MS work for posts and struts in fencing including cutting tops to shape as directed,drilling holes notching for wire etc flat iron fillets (for securing wire mesh etc) including all necessary drilling,bolting or riveting etc and similar work conforming to FE-290 grade E-165 complete all as specified and as directed.

S&F MS round bars 10 mm dia cut to length bent to shape required for bracing in chain link fencing complete conforming to FE-410 W all as specified and as directed.

M & L PCC1:3:6 type C2 using 40mm graded stone aggregate in foundation , walls or retaining walls, any thickness, size or shape including pilasters, buttresses columns, pillars, boundary pillars and posts (including caps and bases)complete all as specified and as directed.

M & L for preparation of old painted steel surfaces of any description over 10cm width or girth and applying one coat of synthetic enamel paint (First quality) all as specified and as directed

M&L for preparation of new steel surfaces of any description over 10cm width or girth and applying two coats of synthetic enamel paint (First quality) over a coat of red oxide primer complete all as specified and directed.

Lateral thrust boring (Horizondal Direct Drilling) of holes in all classes of soil suitable for inserting 110 mm dia HDPE Pipes to lines and levels up to a depth of 3 meters without damaging any existing underground utilities fixing 110 mm, PE100,PN8,ISI 4892 HDPE pipe in the bore hole made as per the direction of Engr- in- charge at site for drawing of UG Cable including hire charges for tools and plants, conveying and erecting machinery for the lateral thrust boring and removing the same from the site after completion of the work including loading and unloading and supply of 110mm HDPE pipe all as specified and as directed.

National Electric Co

Kurian And Varghese

M/s.Rejoy Constructions

Prasur Electricals & Engineering Co.