AUGMENTATION OF TRANSFORMER AND ALLIED E/M WORKS SPECIAL REPAIRS AND REPLACEMENT OF OLD DETERIORATED/ BROKEN AND VARIOUS TYPES OF HIGH TENSION HT CABLE ALONGWITH CONNECTED ITEMS FROM SOMA SUBSTATION TO VISHAKHA VANDANA AT OUTLAYING AREAS AND ROBERT C

Amount

Taking up/out old unserviceable XLPE/HT cable insulated screened, PVC bedded, galvanized steel strip or wire armoured, electric power cable (heavy duty) 11000 Volts grade with stranded aluminium conductor including taking up Old concrete cable cover from trenches/walls/ceiling/poles etc any size complete all as specified and directed by Engineer-in-Charge.

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre in depth for foundation, laying of UG Electric cable / staying of steel tubular pole etc. and getting out in any type of soil, complete all as specified and directed by Engineer-in-Charge.

Material and labour for Cutting existing road surface or hard standing 0.30 mtr depth using latest technology for laying of pipes/ cables and making good distrubed surface to match with existing complete all as specified and directed by Engineer-in-Charge.

Removing the excavated material/ soil not exceeding 50m and depositing where directed at a level not exceeding 1.5 metres above starting point complete all as specified and directed by Engineer-in-Charge.

Returning & filling in, including spreading, levelling, watering & well ramming in layers not exc 25 cm as in soil complete all as specified and directed by Engineer-in-Charge.

Material and labour for dry clean river sand for cushioning of cable in trenches for cable protection including spreading, leveling and hand punning complete all as specified and directed by Engineer-in-Charge. Note :- Only compacted thickness of sand will be measured and paid.

Supplying and laying un-reinforced precast concrete cable cover, class HV Type I, flat, size 300 mm x 180 mm x 40 mm. laid in trenches complete all as specified and directed by Engineer-in-Charge.

Material and labour for GI pipe light grade of 100 mm dia of size for protection of Cables of any size / any type for passing through roads / trench / walls/ duct etc , including all necessary fittings and fixtures etc complete all as specified and as directed by Engr-in-Charge.

Supply and laying XLPE cable insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor 11000 volts, earthed, grade with cross sectional area 185 Sqmm 3 core laid in trenches/through pipe /ducts or fixed on wall etc complete all connections to HT panel with proper size glands & lugs complete all as specified and directed by Engineer-in-Charge.

Supply installation, testing & commssioning of RMU (01 M + 01 I/C+ 03 O/G) 11 kV, 50 Hz 3 phase, 630A with capacity of 20 KA for 3 sec, outdoor type, non extensive with IP-66, 4 way SF6 gas insulated and arc quenching medium having 01 No incoming vacuum circuit breaker& 03 Nos outgoing vaucum circuit breaker complete sealed in a stainless steel tank containing all live parts and switching functions with a rated voltage of rating 12 KV with rupturing capacity upto 350 MVA, all overload protection and earth fault protection as per IEC-298 standards and ISO-9001 certified along with all standard accessories, features, protections and precautions & including the following features complete all as specified and directed by Engineer-in-Charge. :-

(A) Incoming - 01 Nos (Each incoming panel consisting the following items :- )

(a) Manually operated 630A vacuum circuit breaker & earthing switch with full making capacity.

(b) Live cable indicating LEDs energizied through capacitive voltage divides.

(c) 2 No + 2 NC auxillary contacts.

(d) Anti reflex operating handle.

(e) Transparent viewing window for verification of earthing.

(f) Right angle terminal protectors/ boots (push-on-type).

(g) Cable testing facility without opening cable compartment and without disconnecting the cable terminations.

(h) The earth switch shall be naturally interlocked to prevent the main & earth switch being switched ÓN'at the same time. Earth positions with arrangement for pad locking in each position.

(l) Microprocessor based self powered IDMT relay for over current and earth fault protection having three Over current and Earth fault element.

(n) CTs for metering and protection ratio 60A-30A/1A, Class 1 and 5P 10.

(B) Out going - 03 No (Each outgoing panel consisting the following items:- )

(a) Manually operated 630 A Vacuum circuit breaker & earthing switch with full making capacity.

(b) Mechanically on/off/Earth indications.

(c) Emergency trip push button, 230V AC shunt trip coil for external trip signal.

(d) Live cable indicating LEDs energizied through capacitive voltage dividers.

(e) 2 No + 2 NC auxillary contacts.

(f) Anti reflex operating handle.

(g) Transperant viewing window for verification of earthing.

(h) Right angle terminal protectors/ boots (push-on-type).

(j) Cable box for termination of cable upto 1 No 3 core, 300 Sqmm XLPE cable.

(k) Cable testing facility without opening cable compartment and without disconnecting the cable terminations.

(l) Microprocessor based self powered IDMT relay for over current and earth fault protection having three over current and Earth fault element.

(m) Internal fault passage indicator with remote indication contacts.

(n) CTs for metering and protection ratio 30A-20A/1A, Class 1 and 5P 10.

( C ) Meter Cabin - 01 Nos (Each meter cabin panel consisting the following items:-)

(a) Voltage transformer with 3 numbers 1 phase, 3 limbs connected in star, dual class, 11 KV/110V/ route, 50 VA burden and line side with primary & secondary fuses

(ii) Multifunction meter

(iii) Phase LED indicating Lamps

Note :- Cost of earth work and construction of platform for panel, brick masonary in CM 1:6 with foundation PCC 1:4:8 type D-2 including plaster work, PCC coping 1:2:4 type B1 (using 40mm thick stone aggerate), deemed to be included in the item rate. No extra payment will be made.

Supply installation, testing & commissioning of RMU (02 M + 02 I/C+ 02 O/G) 11 kV, 50 Hz 3 phase, 630A with capacity of 20 KA for 3 sec, outdoor type, non extensive with IP-66, 4 way SF6 gas insulated and arc quenching medium having 02 No incoming vacuum circuit breaker& 02 Nos outgoing vacuum circuit breaker complete sealed in a stainless steel tank containing all live parts and switching functions with a rated voltage of rating 12 KV with rupturing capacity upto 350 MVA, all overload protection and earth fault protection as per IEC-298 standards and ISO-9001 certified along with all standard accessories, features, protections and precautions & including the following features complete all as specified and directed by Engineer-in-Charge. :-

(A) Incoming - 02 Nos (Each incoming panel consisting the following items :- )

(a) Manually operated 630A vacuum circuit breaker & earthing switch with full making capacity.

(b) Live cable indicating LEDs energizied through capacitive voltage divides.

(c) 2 No + 2 NC auxillary contacts.

(d) Anti reflex operating handle.

(e) Transparent viewing window for verification of earthing.

(f) Right angle terminal protectors/ boots (push-on-type).

(g) Cable testing facility without opening cable compartment and without disconnecting the cable terminations.

(h) The earth switch shall be naturally interlocked to prevent the main & earth switch being switched ÓN'at the same time. Earth positions with arrangement for pad locking in each position.

(l) Microprocessor based self powered IDMT relay for over current and earth fault protection having three Over current and Earth fault element.

(n) CTs for metering and protection ratio 60A-30A/1A, Class 1 and 5P 10.

(B) Out going - 02 No (Each outgoing panel consisting the following items:- )

(a) Manually operated 630 A Vacuum circuit breaker & earthing switch with full making capacity.

(b) Mechanically on/off/Earth indications.

(c) Emergency trip push button, 230V AC shunt trip coil for external trip signal.

(d) Live cable indicating LEDs energizied through capacitive voltage dividers.

(e) 2 No + 2 NC auxillary contacts.

(f) Anti reflex operating handle.

(g) Transperant viewing window for verification of earthing.

(h) Right angle terminal protectors/ boots (push-on-type).

(j) Cable box for termination of cable upto 1 No 3 core, 300 Sqmm XLPE cable.

(k) Cable testing facility without opening cable compartment and without disconnecting the cable terminations.

(l) Microprocessor based self powered IDMT relay for over current and earth fault protection having three over current and Earth fault element.

(m) Internal fault passage indicator with remote indication contacts.

(n) CTs for metering and protection ratio 30A-20A/1A, Class 1 and 5P 10.

( C ) Meter Cabin - 02 Nos (Each meter cabin panel consisting the following items:-)

(a) Voltage transformer with 3 numbers 1 phase, 3 limbs connected in star, dual class, 11 KV/110V/ route, 50 VA burden and line side with primary & secondary fuses

(ii) Multifunction meter

(iii) Phase LED indicating Lamps

Note :- Cost of earth work and construction of platform for panel, brick masonry in CM 1:6 with foundation PCC 1:4:8 type D-2 including plaster work, PCC coping 1:2:4 type B1 (using 40mm thick stone aggerate), deemed to be included in the item rate. No extra payment will be made.

Material and labour for Dismantling of Cable connection from Existing HT Panel Boards, re routing, shifting the cable and re connecting the same cable in to old / new HT Panel Board/RMU with all necessary arrangements complete all as specified and directed by Engineer-in-charge. Note : Cable Joint kit will be measured and paid seperatly.

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for straight through joint heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed by Engineer-in-

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed by Engr- in- charge

Material and labour for Earthing with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick, burried directely in ground (earth pit not less than 2.5 mtr deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to galvanised iron strip 32 x 6 mm with the help of bolts, nuts, check nuts and washers of galvanised iron or steel, including necessary excavation, PCC 1:3:6 type C2 and PCC cover 1:2:4 type B1 arrangement with GI pipe funnel, jali, complete all as specified and shown in electrical plate No.3 including connection to the earthing test point and testing on completion complete all as specified and directed by Engineer-in-Charge

Taking down old earthing material and Supply and fixing earthing complete with galvanised steel earth plate electrode 60 cm x 60cm x 6mm 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 strip 25 x 4 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion complete all as specified and directed by Engineer-in-Charge

Material and labour for fault finding or cable route located on HT cables of any size and any length with fault detective machine by thumbing method and suitable high voltage complete all as specified and directed by Engineer-in-Charge

Material and labour for PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) as in copings for pole including necessary form work etc complete all as specified and directed by Engineer-in-Charge

Taking down old broken HDPE pipe and Supply / laying HDPE of pressure rating 6kg/sqcm pipe of 110 mm dia or nearest size including necessary bends, elbows, Tees etc on cable protection complete all as specified and directed by Engineer-in-Charge.

Supply and fixing equal 45 x 45 mm angle iron 4 mm thick or any size, any requirement at site , any shape, supports ,duct frame etc complete all as specified and directed by Engineer -in-Charge.

Supply, fixing & installing, testing and commissioning of step down transformer indoor type 400KVA double copper wounded with all standard fitting HT 11 KV 3 phase 50HZ LT 433V three Phase 4 wire with off load tapping on HT side to vary secondary voltage to +/- 2.5% in step up 7.5% with limit as per IS: 1180: 2014 and as per BIS level II externally operated on/off circuit tap changing switch, locking arrangement 400KVA capacity transformer star delta as per vector group DY in 11 solid insulation class A, the temparature shall not exceed 50 degree centigrade measured by thermometer. The transformer shall be equipped with following:- (i) Externally hand operated off load tap changer switch with locking arrangement. (ii) Oil conservator (iii) Breath with Silica gel (iv) Oil filter and drain valve (v) Oil level guage

(vi) Marshal Box (Thermometer pocket) Consisting oil temperature and winding gauge (vii) Diagram and rating plate (viii) Air vent (ix) Explosive vent (x) Lifting lugs (xi) HT cable box suitable for connecting cable (xii) LT cable box suitable for connecting cable (xiii) Four number of roller (xiv) Earthing terminal (xv) Skids (xvi) First fill of oil

Supply and fix cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sqmm complete all as specified and as directed.

Supply and fix cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 300sqmm complete all as specified and directed by Engineer-in-Charge

Supply, laying and testing cable XLPE insulated armoured, heavy duty electric cables with stranded aluminium conductor, 1100 volts grade of size 3.5 core 300 sqmm complete all as specified and directed by Engineer-in-Charge.

Supply and fix compression brass cable gland for fixing armoured cable in panel of cable size 3.5 core 300 sqmm complete all as specified and directed by Engineer-in-Charge

Earthing complete with GI earth plate electrode 600 mm x 600mm x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 Mtr below ground level with the top edge of earth plate at depth not less than 1.5 Mtr below ground level connected ot galvanised iron strip 32 X 6 mm dia by means of bolts, washers and protected by 15mm funnel with 20mm wire GI light watering pipe, wire mesh, including concrete pit in PCC (1:3:6) type C-1, pre-case RCC 1:2:4 type B-1 cover slab of size 350x350x50mm reinforced with 8mm dia deformed bars @15 cm centre to centre both direction and 10 mm dia MS handle of suitable size charcoalor coke and salt in alternative layers,necessary earth work in soft/loose soil all as show in electrical plate No 3 of MES Schedule Part I and testing complete all as specified and directed by Engineer-in-Charge

Urja Techniques India Pvt. Ltd.

ORIENT ELECTRIC CO

Shree Ayyappa Engineering

NOEL ENGINEERS

OM SAI POWER SYSTEMS

AGRAWAL ASSOCIATES

pk Enterprises

NATIONAL ENGINEERING CORPORATION

SHAILENDRA B TULSANI

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