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| 1 | Supplying , installation, testing and commissioning of 12 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 2-way comprising of 01 Nos motorized operated Load Break Switch and 01 Nos 630 Amp Fixed-Type motorized spring-charging VCBelectrolytic grade copper busbars all inside single, gas-filled (SF6), robotically welded stainless steel 304 (Non Ferrite Non Magnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec for cable box and tank both, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft higes, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit shall include the following along with all necessary accessories and fittings as required at site. |
| 2 | (A)01 Nos. Incoming Load Break Switch module eachconsisting of following accessories :-(i)Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch.(ii)12KV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity - 50kAp -01 No(iii)Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emergency manual operation with integrated earthing switch -01 No(v)Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 |
| 3 | (vi)Right angle boots (push on type)-Each Set of 03(vii) Arc proof cable covershaving cable entry from bottom , front withInterlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set(ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No(x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No |
| 4 | (B)01 Nos. Outgoing VCB module eachconsisting of following accessories :-(i)Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch.The three-position-switch fulfills the operation of the disconnector-function and earthing function.(ii)12kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No (iii)Aux. contacts - 1NO+1NC-01 No(iv)Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No(v)Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 |
| 5 | (vi) Right angle boots (push on type)-Each set of 3 (vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current also.Relay shall record minimum 5 fault records with time stamping.Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No(viii) Associated ring-core cast-resin insulated CTs 50/1 Amp , 2.5 VA, 5P10 for protection - Each Set of 3(ix) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No(x)Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No(xi) Push button for breaker trip(xii) Shunt trip coil 24V DC - 01(xiii)ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01.(xiv) Emergency Trip Push Button - 01. |
| 6 | (xv) Vacuum circuit breaker with high mechanical endurance of 10000 operations (M2 Class)(xvi) To ensure reliablility of operation Vacuum interrupter shall be of same make as Ring Main Unit.(C) Additional equipment deliverd separately or mounted seperately :-(i)Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos(ii) Standard Manometer -01 No(iii) Operation and Maintenance Manual -01 No(iv) Installation & Commissioning Manual -01 No(v) Cable clamping provision (standard) -01NoNote:-(i) Necessay interclocking arrangement shall be provided for safety and operations (ii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. |
| 7 | (iii) Cost of construction of foundation including construction material, necessary earth work and excavatonas per manufacturer design forRMU completeall as required at site and as directed by Engr-in-charge are deemed to be included in the quoted rate. |
| 8 | Supplying , installation, testing and commissioning of 12 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 3-way comprising of 01 Nos motorized operated Load Break Switch and 02 Nos 630 Amp Fixed-Type motorized spring-charging VCBelectrolytic grade copper busbars all inside single, gas-filled (SF6), robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec for cable box and tank both, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft higes, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit shall include the following along with all necessary accessories and fittings as required at site. |
| 9 | (A)01 Nos. Incoming Load Break Switch module eachconsisting of following accessories :-(i)Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch.(ii)12KV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity - 50kAp -01 No(iii)Auxiliary contacts - 1NO + 1NC-01 No(iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emergency manual operation with integrated earthing switch -01 No(v)Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 (vi)Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covershaving cable entry from bottom , front withInterlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set |
| 10 | (ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No (x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No(B)02 Nos. Outgoing VCB module eachconsisting of following accessories :-(i)Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch.The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii)12kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No (iii)Aux. contacts - 1NO+1NC-01 No(iv)Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No (v)Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 |
| 11 | (vi) Right angle boots (push on type)-Each set of 3(vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current also.Relay shall record minimum 5 fault records with time stamping.Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No(viii) Associated ring-core cast-resin insulated CTs 50/1 Amp , 2.5 VA, 5P10 for protection - Each Set of 3 (ix) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No(x)Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No(xi) Push button for breaker trip(xii) Shunt trip coil 24V DC - 01(xiii)ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. (xv) Vacuum circuit breaker with high mechanical endurance of 10000 operations (M2 Class)(xvi) To ensure reliablility of operation Vacuum interrupter shall be of same make as Ring Main Unit. |
| 12 | (C) Additional equipment deliverd separately or mounted seperately :- (i)Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No(v) Cable clamping provision (standard) -01No Note:- (i) Necessay interclocking arrangement shall be provided for safety and operations (ii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. (iii) Cost of construction of foundation including construction material, necessary earth work and excavatonas per manufacturer design forRMU completeall as required at site and as directed by Engr-in-charge are deemed to be included in the quoted rate. |
| 13 | Supplying , installation, testing and commissioning of 12 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 4-way comprising of 01 Nos motorized operated Load Break Switch and 03 Nos 630 Amp Fixed-Type motorized spring-charging VCBelectrolytic grade copper busbars all inside single, gas-filled (SF6), robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec for cable box and tank both, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft higes, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit shall include the following along with all necessary accessories and fittings as required at site |
| 14 | (A)01 Nos. Incoming Load Break Switch module eachconsisting of following accessories :-(i)Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii)12KV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity - 50kAp -01 No (iii)Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emergency manual operation with integrated earthing switch -01 No (v)Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03(vi)Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covershaving cable entry from bottom , front withInterlocking mechanism including earth switch -01 No(viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set(ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No(x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No |
| 15 | (B)03 Nos. Outgoing VCB module eachconsisting of following accessories :-(i)Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch.The three-position-switch fulfills the operation of the disconnector-function and earthing function.(ii)12kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No(iii)Aux. contacts - 1NO+1NC-01 No(iv)Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No(v)Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 120 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3(vi) Right angle boots (push on type)-Each set of 3(vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current also.Relay shall record minimum 5 fault records with time stamping.Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No(viii) Associated ring-core cast-resin insulated CTs 50/1 Amp , 2.5 VA, 5P10 for protection - Each Set of 3 |
| 16 | (ix) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No(x)Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No(xi) Push button for breaker trip(xii) Shunt trip coil 24V DC - 01(xiii)ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01.(xiv) Emergency Trip Push Button - 01.(xv) Vacuum circuit breaker with high mechanical endurance of 10000 operations (M2 Class)(xvi) To ensure reliablility of operation Vacuum interrupter shall be of same make as Ring Main Unit. |
| 17 | C) Additional equipment deliverd separately or mounted seperately :-(i)Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos(ii) Standard Manometer -01 No(iii) Operation and Maintenance Manual -01 No(iv) Installation & Commissioning Manual -01 No(v) Cable clamping provision (standard) -01NoNote:-(i) Necessay interclocking arrangement shall be provided for safety and operations (ii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. |
| 18 | (iii) Cost of construction of foundation including construction material, necessary earth work and excavatonas per manufacturer design forRMU completeall as required at site and as directed by Engr-in-charge are deemed to be included in the quoted rate. |
| 19 | Excavation in trenches n. exc. 1.5 mtr wide and not exceeding 1.5 mtr in depth for laying of underground cable and getting out in soft loose soil complete all as specified and directed by the Engineer-In-Charge. |
| 20 | Returning filling in including spreading, leveling, watering and well ramming in layers not exceeding 25cm complete all as specified and as directed by the Engineer-In-Charge |
| 21 | Removing excavated material not exceeding 50mtr and depositing where directed at a level not exceeding 1.5mtr above the starting point complete all as specified and as directed by the Engineer-In-Charge |
| 22 | M&L forsand cushioning with layer of sand 8 cm thick before laying of cable and 15 cm after lying of cable in trenches complete all as specified & directed. Note: Punned thickness of sand will be measured (18 cm) and paid under relevant item. |
| 23 | Supply and laying of factory made unreinforced pre-cast concrete cover class HV, Type 1,flat,size 300mmx 180mm x 40mm laid in trenches for HT cable protection complete all as specified and directed. Note: HT PCC cable cover shall comply with IS 5820 (1970) and shall be marked with HT 11 KV on top. |
| 24 | M&L for earthing complete with galvanised steel earth plate electrode 600mmX 600mmX 6mm thick buried directlyin ground vertically ( earth pit not less than 2.25 meters deep below ground level) with top edge of plate not less than 1.5 metres belowground level, connected to and including GI Strip of size 32x6 mm and light grade protection pipeof 40 mm diafrom earth electrode up to test point or up to 7.5mtr whichever is less by means of GIbolts, nuts, check nuts and washersall as per electrical plate No 3 of SSR Pt-I and GI watering pipe of 20 mm dia medium grade, GI funnel with wire mesh including charcoal, salt packed all around the earth electrode plate in layers, PCC earth pit chamber (1:3:6) type C1, of size 45X 45X 45 CM, RCC cover (1:2:4) type B1 of size 45X45X6CM, excavation/earth work in any strata and returning filling, removal of surplus soil and testing/test point for required valuecomplete including testing on completion all as specified and directed.(GI strip upto 7.5m including testing consider in this item). |
| 25 | Material and labour for providing cement concrete 1:4:8 type D-2 (using 40 mm graded crushed stone aggregate) as in foundation filling for poles complete all as specified and directed by Engr in charge. |
| 26 | Material and labour for providing cement concrete 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) for coping of poles including necessary form work and finished the surface complete all as specified and directed by Engr in charge. |
| 27 | M&L for shifting of old existing 11 KV RMU (one incoming and 02 Nos outgoing) after Disconnecting all the electric connections from incoming, outgoing terminal and earthing terminals from the RMU including fixing to another locationwith Hydra and including necessary new RCC/PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) foundation, plateform, ramp etc of suitable size and necessary excavation and earthwork complete all as directed by Engr-in-Charge. |
| 28 | M & L for Chain link fencing 4.0x4.0x1.8 m height around the RMU panels with one side opening door complete with Flat irons & angle irons with nut bolts & PCC works for RMU 11 KV panels complete all as specified and as directed. |
| 29 | M&L in repair 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 95sqmm complete all as specified and directed. |
| 30 | M&L in repair 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 95sqmm complete all as specified and directed. |
| 31 | Supply , laying , jointing & testing of HT underground cable XLPE insulated,screened, PVC bedded, galvanisedsteel striporwire armoured,electric power cables (heavyduty) with aluminium conductor, 11000 volts Earthed, with stranded compact aluminium conductor 11000 volts grade 95 sq mm 3 core confirming to IS:7098 (Part-II) with latest amendements, suitable for earthed system laid in duct/trench/along pole etc including making connection complete all as specified and directed by Engr-in-charge |
| 32 | Supply & laying steel tubing, galvanized iron, light grade bores, size 80 mm dia for passing HT cable under road or PCC floor or fixed on wall/on pole or drain etc or whenever protection is required including necessary clamps and nut bolts with GI fitting complete all as directed and specified. |
| 33 | Dismantling of old HT steel tubular pole complete all as specified and as directed |
| 34 | Dismantling of old Air Break Gang OperatedDevice (GOD) switch Assemblycomplete all as specified and as directed |
| 35 | Dismantling cross-arms of M.S. channel or angle sections , iron supports etc. complete all as specified and as directed. |
| 36 | Dismantling insulators any type, any size fromPoles complete all as specified and directed |
