SPECIAL REPAIR / REPLACEMENT OF HT NETWORK INCLUDING EQUIPMENT AND OTHER ASSOCIATED WORKS AT AF STN HAKIMPET

Amount

Dismantling of 2 Pole stucture PCC Poles/Steel tubular poles of any size, type, make complete all as specified and as directed.

Dismantling of 4 Pole stucture PCC Poles/Steel tubular poles of any size, type, make complete all as specified and as directed.

Dismantling of ACSR conductor of any size, make, type complete all as specified and as directed.

Dismantling of insulators of any type, make complete all as specified and as directed.

Dismantling of Cross arms of MS Channel of any size, make, type complete all as specified and as directed.

M&L Brick platform of size 2.5m x 2.5 m x 1.5 m and upto depth of 1.0 meter below ground in cement mortar 1:6 with PCC foundation 1:4:8 type D-2 using 40 mm graded stone aggregate, PCC 1:2:4, type B-1 using 20 mm graded stone aggregate, 20 cm thick coping over brick work, plastering to exposed surfaces of brick work with cement mortar 1:4, 15mm thick complete all as specified and as directed.

Supply, installation testing and commissioning of 11 KV,rated voltage 630 A, Outdoor type (IP 54), Air type,Load break switch with HT Fuse. The unit shall include the following with all necessary standard fitting as required at site complete all as specified and as directed. (a) Type : Air type (b) Indoor/Outdoor : Outdoor type (c) Voltage (Normal/Max.) KV - 11 KV (d) Phase (Nos) - 3 Phase (e) Frequency (Hz) - 50 Hz (f) Rated Current - 630 Amp (g) Fuse Rating - Suitable for existing Transformer Rating (h) Short circuit current - 26 KA (j) Insulation level (i) Impulse Withstand (kV peak) - 75 (ii) 1 minute 50 Hz Voltage Withstand (kVrms) - 28 (k) Degree of Protection Outdoor enclouser - IP54 (l) Powder coating Paint shade - RAL 7032 (m) Switch gear complete testing at factory premises infront of Testing officer detailed by Accepting officer (n) Fittings and accessories (i) LBS with HT Fuse (ii) Provided Earth switch (iii) Proveded with Heater + Thermostat + Auxillary switch (iv) Indication Lamps for HT supply (v) Operating Handle Complete with internal and external connections with each other or as per ground requirement. Note : (a) Drawings submitted by the contractor for approval of Accepting Officer before placing the order. (b) LBS tested by IEM/EI/SEI after commissioning before or after completion of tender. (c) Rates quoted by the contractor including suitable plinth as desired by Engr-in-Charge.

Material and labour for feeder pillars box out door type made out of MS sheet (CRCA) of thickness not less than 3.15 mm, of size 150 x 65 x 90 cm with copper bus bar strip 3 Nos of size 100 cm in length, 4 cm in width and 6 mm in thickness suitable for 11000 volt grade mounted on HT porcelain insulator, front opening door having two leaf braced with hinged, mounted on 4 Nos angle iron 100 x 100 mm x 8 mm, 90 cm long duly welded with box and grouted in PCC 1:3:6 type C-1 using 20 mm graded mechnically crushed stone aggregates block of size 30 cm x 30 cm x 15 cm ,top of box shall be of MS sheet duly bent in slope, tapper with projection of 20 mm on all side, weather / vermin proof with high quality of rubber beeding on panel door, cable entry arrangements at bottom includes earthing terminals 2 Nos at both side duly painted with red stove enamelled paint 2 coat over a primer coat after taking down/out feeder box as existing at site complete all as specified and as directed.

M&L cable jointing Kit in replacement for 11KV grade cable for outdoor termination, heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminum conductor cable of size 95 Sqmm complete all as specified and as directed.

Supplying, laying, jointing, testing and commissioning HT XLPE cable, 11000 volts (earthed), insulated, screened, sound compacted aluminium conductor, screening with extruded semi conducting layers, insulation screening with copper tape covers laid up with PVC (ST-2), extruded inner sheathed GI strip armoured PVC (ST-2) out sheathed, ISI marked with IS-7098 Part II with amendment, size 95 Sqmm, 3 core, laid in trenches/ pipes / ducts / along poles/ walls / equipment etc including taking down of old cables complete all as specified and as directed. Notes : Payment for excavation & earth work, sand cushioning, protection pipes, end termination joints & protection covers shall be made for separately.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting in hard/dense soil for laying of cables/ for erection of poles/ for stay assembly etc complete all as specified and as directed.

Supply and spread clean dry river sand in trenches for cushioning of cable complete all as specified and as directed. Note: Punned down thickness only shall be measured for the purpose of payment.

Returning, filling in trenches including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and as directed.

Removing surplus excavated material to a distance not exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

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

M & L in replacement for earthing complete with GI earth plate electrode of size 60 cm x 60 cm x 6 mm thick buried directly in ground vertically at a depth not less than 2.25 mtr below normal ground level with top edge of earth plate at depth not less than 1.5 mtr below normal ground level surrounded from all sides by 15 cm thick and packed layer of charcol dust and common salt filling in alternate layers and electrode connected by galvanised iron strip 32 mm x 6 mm by means of bolts, nuts, check nuts and washers connected to test termination point protected by 40mm bore GI pipe light grade and GI pipe light grade 20mm bore for watering and including funnel, wire mesh, RCC pit cover and PCC chamber pit with PCC 1:2:4 type B1 including exluvation and earth work, disposal of surplus soil to a distance not exceeding 50 mtr all as specified and shown in electrical plate No 3 of SSR Part I complete all as specified and as directed. Note: (i) The unit rate shall include for GI water pipe, protection pipe wire mesh, funnel, excavation, RCC pit cover, PCC, test point, G I strip 32 X 6 mm from top of earth plate upto 5 mtr. (ii) PCC pit shall be provided at least 1.5m away from the earth pit and extra cost of additional length of water pipes and fixing junction, Elbows etc shall be deemed to be included in the unit rate. (iii) RCC pit cover shall be percast of RCC 1:2:4, type B-1, 80 mm thick reinforced with XPM weighing not less than 4kg/Sqm in liue of cast iron cover.

Supply, installation and commissioning of 11 KV,rated voltage 11 KV, 630 A, non extensible, outdoor (IP 54), fixed type,SF6 insulated RMU (Ring Main Unit) 3-way (comprising of 2 Nos 630 Amps Load break switch as outgoing and 1 No vaccum circuit breaker as incoming) inside robotically welded stainless steel 304 (Non ferrous,Non magnetic grade) having IP- 67 grade protection and impulse withstand voltage 75 KV , rated power - frequency withstand voltage 28 KV/minute, rated frequency 50 Hz, rated short time breaking current 21 KA/ 3 sec . RMU should be provided with internal bus bars as well as earthing bus bar, one number fault passage indicator per unit pad lock provision & complete with accessories. The RMU shall be type tested for internal arc test of 21 KA/1 Sec as per IEC 62271-220. The earting of cable sheilds. The outer enclosure main door should cover entire part of the switchgear including front cover and cable doors for providing complete IP 54 protection. The unit shall include the following with all necessary standard fitting as required at site complete all as specified and as directed.

(a) 02 Nos outgoing 630 Amps load break switch , triple pole single break 3 position (On, Off and earth having STC capacity 21 KA for 3 seconds with copper bus bar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 Sqmm complete all as specified and as directed.

(b) 01 No incoming 630 Amp motorised vaccum circuit breaker, triple pole single break 3 position (On, Off and earth having STC capacity 21 KA for 3 seconds with copper bus bar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 Sqmm.

(c) Bus connected PT unit-01 No for metering consisting of following :- (i) Type M : Air insulated metering module 12 KV, 630 A 21 KA for 3 Sec. (ii) 3 voltage transformers of the ratio 11 KV/1.732/110 V/1.732.25 VA class 1.0 with HT fuses on primary side and MCB on secondary side. (iii) 3 Digital MFM with 485 port to measure Amps, Volts, Frequency, PF, KWH, KVAR. (iv) 1 LED bulb for illumination. (v) 1 Space heater with thermostat.. (vi) 1 set of RYB phase indicator. (vii) 1 Cable support bus bar, stand for 3 way unit, 1 manometer & 1 perating handle. (viii) 1 Set bushing for external bus bar connection along with bus bar cover & sleeved bus bars for coupling. (ix) 2x12 V Battery with battery charger of suitable burden for motor operation. Input 230 V AC & output 24 V DC.

(d) Capacitive voltage indicator fixed type VPIS 9-15 KV.

(e) Necessary interlocking arrangement for safety and operation.

(f) One No operating handle for manual operation.

(g) PCC 1:2:4 type B1 using 20mm graded stone aggregate for foundation and bus duct of cable for RMU as per recommendation of manufacturers & as directed by Engineer-in-Charge.

(h) Safety interlocks shall be provided as relevand IEC/IS standard and manufactures directions.

(j) Above switchgear shall confirm to all relevant IEC/IS standard.

(k) Manual operation of vaccum circuit breaker should be possible without dismantling the motor from RMU. The motor should be fitted in such a way that it should not be required to dismantle during mannual operation.

(l) Coupling of RMU and metering module should be with the help of bolted type arrangement so that the coupling at site shall be easy. Plug in type bushing shall not be acceptable.

(m) Minimum 3 module should accommodate in one tank to avoid multiple coupling at site.

(n) Having following additional facilities:- 1. Trip circuit supervision. 2. Disturbance recorder. 3. Event log with date and time. 4. Measurement and control feature.

(o) Current Transformers (CTs) of ratio 40/5-5A of 15 VA output, accuracy class 1.0 for metering instrument and 5P10 for 15VA accuracy for over current and earth fault protection - Sets of 03 Note 1 :- (i) Any other parts/items not specified above but have been considered essential for smooth and safe functioning of the RMU system shall be included in the items and are covered against the quoted rate. (ii) Cable compartment shall be provided at the front side with front bolted type box covers provided with an inspection window for enabling operator to have visual inspection without opening cover in live condition for all incoming and outgoing RMU panels. (iii) Complete with internal and external connection with each other or as per ground requirement. Note 2 : (a) Drawings submitted by the contractor for approval of Accepting Officer before placing the order. (b) RMU tested by IEM/EI/SEI after commissioning before or after completion of tender. (c) Rates quoted by the contractor including suitable plinth as desired by Engr-in-Charge.

Supply, installation and commissioning of 11 KV,rated voltage 11 KV, 630 A, non extensible, outdoor (IP 54), fixed type,SF6 insulated RMU (Ring Main Unit) 5-way (comprising of 4 Nos 630 Amps Load break switch as outgoing and 1 No vaccum circuit breaker as incoming) inside robotically welded stainless steel 304 (Non ferrous,Non magnetic grade) having IP- 67 grade protection and impulse withstand voltage 75 KV , rated power - frequency withstand voltage 28 KV/minute, rated frequency 50 Hz, rated short time breaking current 21 KA/ 3 sec . RMU should be provided with internal bus bars as well as earthing bus bar, one number fault passage indicator per unit pad lock provision & complete with accessories. The RMU shall be type tested for internal arc test of 21 KA/1 Sec as per IEC 62271-220. The earting of cable sheilds. The outer enclosure main door should cover entire part of the switchgear including front cover and cable doors for providing complete IP 54 protection. The unit shall include the following with all necessary standard fitting as required at site

(a) 02 Nos outgoing 630 Amps load break switch , triple pole single break 3 position (On, Off and earth having STC capacity 21 KA for 3 seconds with copper bus bar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 Sqmm.

(b) 01 No incoming 630 Amp motorised vaccum circuit breaker, triple pole single break 3 position (On, Off and earth having STC capacity 21 KA for 3 seconds with copper bus bar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 Sqmm.

(c) Bus connected PT unit-01 No for metering consisting of following :- (i) Type M : Air insulated metering module 12 KV, 630 A 21 KA for 3 Sec. (ii) 3 voltage transformers of the ratio 11 KV/1.732/110 V/1.732.25 VA class 1.0 with HT fuses on primary side and MCB on secondary side. (iii) 3 Digital MFM with 485 port to measure Amps, Volts, Frequency, PF, KWH, KVAR. (iv) 1 LED bulb for illumination. (v) 1 Space heater with thermostat.. (vi) 1 set of RYB phase indicator. (vii) 1 Cable support bus bar, stand for 3 way unit, 1 manometer & 1 perating handle. (viii) 1 Set bushing for external bus bar connection along with bus bar cover & sleeved bus bars for coupling. (ix) 2x12 V Battery with battery charger of suitable burden for motor operation. Input 230 V AC & output 24 V DC.

(d) Capacitive voltage indicator fixed type VPIS 9-15 KV.

(e) Necessary interlocking arrangement for safety and operation.

(f) One No operating handle for manual operation.

(g) PCC 1:2:4 type B1 using 20mm graded stone aggregate for foundation and bus duct of cable for RMU as per recommendation of manufacturers & as directed by Engineer-in-Charge.

(h) Safety interlocks shall be provided as relevand IEC/IS standard and manufactures directions.

(j) Above switchgear shall confirm to all relevant IEC/IS standard.

(k) Manual operation of vaccum circuit breaker should be possible without dismantling the motor from RMU. The motor should be fitted in such a way that it should not be required to dismantle during mannual operation.

(l) Coupling of RMU and metering module should be with the help of bolted type arrangement so that the coupling at site shall be easy. Plug in type bushing shall not be acceptable.

(m) Minimum 3 module should accommodate in one tank to avoid multiple coupling at site.

(n) Having following additional facilities:- 1. Trip circuit supervision. 2. Disturbance recorder. 3. Event log with date and time. 4. Measurement and control feature.

(o) Current Transformers (CTs) of ratio 40/5-5A of 15 VA output, accuracy class 1.0 for metering instrument and 5P10 for 15VA accuracy for over current and earth fault protection - Sets of 03 Note 1 :- (i) Any other parts/items not specified above but have been considered essential for smooth and safe functioning of the RMU system shall be included in the items and are covered against the quoted rate. (ii) Cable compartment shall be provided at the front side with front bolted type box covers provided with an inspection window for enabling operator to have visual inspection without opening cover in live condition for all incoming and outgoing RMU panels. (iii) Complete with internal and external connection with each other or as per ground requirement. Note 2 : (a) Drawings submitted by the contractor for approval of Accepting Officer before placing the order. (b) RMU tested by IEM/EI/SEI after commissioning before or after completion of tender. (c) Rates quoted by the contractor including suitable plinth as desired by Engr-in-Charge.

VBK ELECTRICALS AND AGENCIES PRIVATE LIMITED (BID ID -3499779)

OM SAI POWER SYSTEMS (BID ID -3505869)

Srinivasa Consructions (BID ID -3499142)

L and S ENTERPRISES (BID ID -3498823)

DPS sales and services india (BID ID -3505678)