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| 1 | Dismantling of ACSR overhead conductors complete all as specified & directed. |
| 2 | Dismantling of cross-arms of MS channel or angle sections etc. complete all as specified & directed. |
| 3 | Dismantling of electric insulators any type, any size complete all as specified & directed. |
| 4 | Dismantling/taking down of electric concrete poles/strut any size/type including making good the disturbed surface complete all as specified & directed. |
| 5 | Dismantling/taking down of old HT 2 Pole(Concrete pole) structure with cross arms, earthing etc. complete all as specified & directed. |
| 6 | Dismantling/taking down of old HT 4 Pole(Concrete pole) structure with cross arms, earthing etc. complete all as specified & directed. |
| 7 | Design, supply, erection, testing & commissioning of 11KV, 630Amp, 21kA for 3 sec, SF6 insulated, motorized & manual operated, outdoor, extensible Ring Main Unit(RMU) 8way, one incomer and seven outgoing along with air insulated bus connected unit for auxiliary supply, type tested in line with latest IEC standards. The RMU shall be suitable for operations at a height upto 1000metre above sea level and at 50 degree centigrade ambient temperature without any de-rating . The switch gear and busbar shall all be contained in a stainless steel enclosure filled with SF6 at 0.3 Bar (300hPa) relative pressure. The RMU tank shall provide full insulation, making the switchgear insensitive to the environment with degrees of protection of IP67. The switch gear operating mechanism shall have an IP2X protection and cable chamber shall have IP3X. The outer enclosure should be IP 54 type tested should be powder coated with pure polyester based paint, suitable for the site installation conditions. Accidental over pressure due to an internal arc is limited by the opening of the safety valve, at the bottom of the metal enclosure, away from the operator, plug in type of extensibility must be provided and coupling busbar should not be exposed to air to avoid oxidationof busbars. Extension of cubicle should only require 450mm to handle and the gap between the coupled RMUs must be within 10mm. Each of the Ring main unit shall comprise of the followings :- |
| 8 | BOQ item No. 7 contd...../-(A) VCB each comprising of the following (08 sets):-(i) 11KV 630Amp, 21kA motorized VCB with spring assisted mechanism and series trip coil: with built in manualline side three position disconnector cum earth switch - 01 No.(ii) Position indicator through clear front mimic with IEC 62271-103 - 01No.(iii) Self powered /auxiliary powered relay with O/C, S/C, E/F protection. Relay should have a front USB portfor laptop interface, LCD display, 10 event records, 5 fault records, minimum 2 setting group and keypad for settingparameters for the relay with TMS setting value of 0.1 - 01No.(iv) CT of ratio 100/5/1/1, Class 5P10, 2.5VA for protection /metering class 0.5, 2.5VA - 01 Set.(v) Digital multifunctional meter of class 0.5 to measure voltage, Ampere, frequency, power factor etc.(vi) Live cable indicator with indications (voltage presence indicator) at the front and three inlets provision tocheck the synchronization of phases - 01 No.(vii) Cable box with termination bushing suitable for upto 1Run, 3core x 300sqmm XLPE cable - 01 set.(viii) Cable boots suitable for cable size upto 1Run, 3core, 300sqmm cable - 01 set. |
| 9 | BOQ item No. 7 contd...../-Note :- The circuit breakers shall have 2 positions : open or disconnected and closed .Separate and independent 3 positions earthing switch and disconnector shall be fitted for the 3 positions earthing switch and disconnector circuit breaker shall be fitted with a local system for manual tripping by an integrated push button. There will be no automatic reclosing. Circuit breaker shall have a minimum of 2000 mechanical and electrical operations and 50Nos SC operations . disconnector and earth switch shall have a minimum of 1000 (M1) mechanical operations, 1000 electrical operations at rated current and 50 Nos. operations at rated SC current.(B) Air insulated bus connected unit - 01 set comprising the following :-(i) 11KV/rt3/110/rt3: 50VA class 0.5 single phase bus PT for metering - 03 Nos.(ii) 11KV/230VAC, 1 KVA control transformer- 01 No.(iii) Battery and battery charger, 12Ah (I/P- 230Volt AC, O/P- 24Volt DC)- 01 No.(iv) Connection with adjacent modules will be direct through busbar, via bushing, VT\"s and CT\"s from themanufacturer and according to IEC61869-3 and IEC 61869-2 respectively shall be accepted. |
| 10 | Design, supply, erection, testing and commissioning of 11KV 630Ampere, 21kA for 3 sec, SF6 insulated, motorized & manual operated, outdoor, extensible Ring Main Unit(RMU) 4way one incomer and three outgoing along with air insulated bus connected unit for auxiliary supply, type tested in line with latest IEC standards. The RMU shall be suitable for operations at a height up to 1000 metre above sea level and at 50 degree ambient temperature without any de-rating. The switch gear and busbar shall all be contained in a stainless steel enclosure filled with SF6 at 0.3bar (300hPa) relative pressure. The RMU tank shall provide full insulation, making the switchgear insensitive to the environment with degrees of protection of IP67.The switch gear operating mechanism shall have an IP2X protection and cable chamber shall have IP3X. The outer enclosure should be IP 54 type tested should be powder coated with pure polyester based paint, suitable for the site installation conditions. Accidental over pressure due to an internal arc is limited by the opening of the safety valve, at the bottom of the metal enclosure, away from the operator, plug in type of extensibility must be provided and coupling busbar should not be exposed to air to avoid oxidation of busbars. Extension of cubicle should only require 450mm to handle and the gap between the coupled RMUs must be within 10mm.Each of the Ring main unit shall comprise of the followings:- |
| 11 | BOQ item No. 8 contd...../-(A) VCB each comprising of the following (04 sets) :-(i) 11KV 630Ampere, 21kA motorized VCB with spring assisted mechanism and series trip coil: with built in manualline side three position disconnector cum earth switch - 01 No.(ii) Position indicator through clear front mimic in line with IEC 62271-103 - 01No.(iii) Self powered /auxiliary powered relay with O/C, S/C, E/F protection. Relay should have a front USB portfor laptop interface, LCD display, 10 event records, 5 fault records, minimum 2 setting group and keypad for settingparameters for the relay with TMS setting value of 0.1 - 01No.(iv) CT of ratio 100/5/1/1, Class 5P10, 2.5VA for protection /metering class 0.5, 2.5VA - 01 set.(v) Digital multifunctional meter of class 0.5 to measure voltage, Ampere, frequency, power factor etc.(vi) Live cable indicator with indications (voltage presence indicator) at the front and three inlets provision tocheck the synchronization of phases - 01 No.(vii) Cable box with termination bushing suitable for upto 1Run, 3core x 300sqmm XLPE cable - 01 set.(viii) Cable boots suitable for cable size upto 1Run, 3core, 300sqmm cable - 01 set. |
| 12 | BOQ item No. 8 contd...../-Note :- The circuit breakers shall have 2 positions : open or disconnected and closed .Separate and independent 3 positions earthing switch and disconnector shall be fitted for the 3 positions earthing switch and disconnector circuit breaker shall be fitted with a local system for manual tripping by an integrated push button. There will be no automatic reclosing. Circuit breaker shall have a minimum of 2000 mechanical and electrical operations and 50Nos SC operations. disconnector and earth switch shall have a minimum of 1000(M1) mechanical operations, 1000 electrical operations at rated current and 50 Nos. operations at rated SC current.(B) Air insulated bus connected unit -01 set comprising the following :-(i) 11KV/rt3/110/rt3: 50VA class 0.5 single phase busPT for metering - 03 Nos.(ii) 11KV/230VAC, 1 KVA control transformer - 01 No.(iii) Battery and battery charger , suitable Ah for minimum 10 operations (I/P- 230Volt AC, O/P- 24Volt DC) - 01 No.(iv) Connection with adjacent modules will be direct through busbar, via bushing, VT\"s and CT\"s from themanufacturer and according to IEC61869-3 and IEC 61869-2 respectively shall be accepted. |
| 13 | Design, supply, erection, testing and commissioning of 11KV 630Amp, 21kA for 3 sec, SF6 insulated, motorized & manual operated, outdoor, extensible Ring Main Unit (RMU) 3way one incomer and two outgoing along with air insulated bus connected unit for auxiliary supply, type tested in line with latest IEC standards. The RMU shall be suitable for operations at a height up to 1000metre above sea level and at 50 degree ambient temperature without any de-rating . The switch gear and busbar shall all be contained in astainless steel enclosure filled with SF6 at 0.3bar (300hPa) relative pressure. The RMU tank shall provide full insulation , making the switchgear insensitive to the environment with degrees of protection of IP67. The switch gear operating mechanism shall have an IP2X protection and cable chamber shall have IP3X. The outer enclosure should be IP 54 type tested should be powder coated with pure polyester based paint, suitable for the site installation conditions. Accidental over pressure due to an internal arc is limited by the opening of the safety valve, at the bottom of the metal enclosure, away from the operator, plug in type of extensibility must be provided and coupling busbar should not be exposed to air to avoid oxidationof busbars. Extension of cubicle should only require 450mm to handle and the gap between the coupled RMUs must be within 10mm. Each of the ring main unit shall comprise of the followings :- |
| 14 | BOQ item No. 9 contd...../-(A) VCB each comprising of the following (03 sets) :-(i) 11KV 630A, 21kA motorized VCB with spring assisted mechanism and series trip coil: with built in manualline side three position disconnector cum earth switch - 01 No.(ii) Position indicator through clear front mimic in lin with IEC 62271-103 - 01No.(iii) Self powered /auxiliary powered relay with O/C, S/C, E/F protection. Relay should have a front USB portfor laptop interface, LCD display, 10 event records, 5 fault records, minimum 2 setting group and keypad for settingparameters for the relay with TMS setting value of 0.1 - 01No.(iv) CT of ratio 100/5/1/1, Class 5P10, 2.5VA for protection /metering class 0.5, 2.5VA - 01 set. (v)Digital multifunctional meter of class 0.5 to measure voltage, Ampere, frequency, power factor etc.(vi) Live cable indicator with indications (voltage presence indicator) at the front and three inlets provision tocheck the synchronization of phases - 01 No.(vii) Cable box with termination bushing suitable for upto 1RUN, 3core x 300sqmm XLPE cable - 01 set.(viii) Cable boots suitable for cable size upto 1Run, 3core, 300sqmm cable - 01 set. |
| 15 | BOQ item No. 9 contd...../-Note :- The circuit breakers shall have 2 positions : open or disconnected and closed .Separate and independent 3 positions earthing switch and disconnector shall be fitted for the 3 positions earthing switch and disconnector circuit breaker shall be fitted with a local system for manual tripping by an integrated push button. There will be no automatic reclosing. Circuit breaker shall have a minimum of 2000 mechanical and electrical operations and 50Nos SC operations. disconnector and earth switch shall have a minimum of 1000(M1) mechanical operations, 1000 electrical operations at rated current and 50 Nos. operations at rated SC current.(B) Air insulated bus connected unit -01 set comprising the following :-(i) 11KV/rt3/110/rt3: 50VA class 0.5 single phase busPT for metering - 03 Nos.(ii) 11KV/230VAC, 1 KVA control transformer- 01 No.(iii) Battery and battery charger , 12Ah (I/P- 230Volt AC, O/P- 24Volt DC)- 01 No.(iv) Connection with adjacent modules will be direct through busbar, via bushing, VT\"s and CT\"s from themanufacturer and according to IEC61869-3 and IEC and IEC 61869-2 respectively shall be accepted. |
| 16 | Notes for BOQ item No. 7 to 9:-(A) RMU degree of protection shall be IP54 for outer enclosure and IP 67 for SF6 tank.The make of vaccum interrupter will be the same make as the make of Ring Main units. Ring main units shall be manufactured by OEM.(B) An operator situated in front, lateral and rear (A-FLR 21kA - 1 sec downwards exhaust, for tank as well as cable compartment) of the RMU switch board during an internal fault will not be exposed to the effects of arcing. Internal arc type test report for IAC AFLR 21kA for 1 sec for both tank & cable box should have been for minimum 3way/3 function RMU.(C) All operations shall be from front of the RMU, including access to cable bushings. Bushings along the sides or the rear of the RMU shall not acceptable.(D) The rate for making foundation for RMU of size as per recommendation by manufacturer and the cost of excavation, brick work, concrete, steeletc.(if any)shall deemed to be included in the quoted rate. The drawing for foundation as per manufacturer design & shall be approved by GE. (E) The drawings in respect of RMU shall be approved by Accepting Officer through GE and as & when requested by contractor before placing order to manufacturer.(F) RMU shall be tested by representative of Accepting Officer at factory premises before dispatch as & when requested by contractor.(G) The testing and commissing after installation of the RMU shall be carried out in presence of Senior Electrical Inspector as & when requested by contractor.(H) The cost of all above factors deemed to be included in quoted rates. |
| 17 | Disconnecting and dismanting of existing transformer of capacity below 500 KVA from 2/4 pole structure and shifting to new location/plinth including construction of transformer platform of size 3.5mtr x 3.5mtr, 1.2mtr high from ground level including excavation in trenches/over area in any type of soil below ground level upto 0.45mtr, PCC 1:4:8 type D-2(40mm graded crushed stone aggregate ) 15cm thick as in subbase, brick work in two steps of 15cm each (1st step 46cm wide and 2nd step of 34.5 cm wide), above ground level 23cm thick brick wall all around 1.00mtr high, external plastering 15mm thick in cement mortar 1:4 on brick/concrete surface, PCC flooring 100mm thick 1:2:4 type B-2 over 75mm thick sub base of PCC 1:4:8 type D-2, balance portion filled with aggregate of size 40-63mm including compacting/ramming in layers below sub base upto ground level including returing, filling-in and removal of surplus soil upto a distance not exceeding 50mtr from starting point, fencing of 1.2mtr height on platform with XPM jali 50mm x 50mm and angle iron 40mm x 40mm x 5mm, flats 40mm x 5mm, fencing post embedded in PCC 1:2:4 at a distance not exceeding 0.9mtr each side including gate, painting with two coats of aluminium paint over a coat of red oxide primer. Cement work finished with three coats of white wash of colour as directed.ISMC 100mm 02 Nos grounted for fixing of transformer complete all as specified & directed. Note: The drawing of transformer platform shall be submitted by contractor for the approval of GE. The drawing should contains all the details of sub base, brick work, flooring work, fencing work, structural steel work etc. duly dimensioned. |
| 18 | M&L earthing complete with galvanized steel earth plate electrode 60 cm X 60 cm, 6mm thick buried vertically in ground to depth not less than 2.25 mtr below ground level, with top edge of earth plate not less than 1.5 mtr below ground level, connected to GI earth lead strip 32mm x 6mm upto 7.5 mtr long by means of bolts, nuts, check nuts and washers of galvanized iron and connection to earthing test point& earth dolly including watering pipe GI 20 mm bore medium grade 1.5 mtr long & protection pipe GI light grade 40mm bore upto 7.5 mtr long, wire mesh, funnel, lugs, salt, charcoal dust, excavation & earthwork in soft/loose type of soil and refilling, pit chamber with PCC 1:3:6 type C-1 (using 20 mm graded mechnically crushed stone aggregates) and pit cover slab 40mm thick precast RCC 1:2:4 type B-1 (using 20 mm graded mechnically crushed stone aggregates) reinforced with 8 mm dia TMT bars @ 15cm c/c both ways including necessary form work, all as shown in electrical plate No 3 of MES SSR part-I, including testing on completion at site complete all as specified & directed. Notes:- (i) On testing if the desired earth resistance (i.e. less than 5 ohm) is not obtained, earthing will be generated at no extra cost, till the desired earth resistance is obtained. (ii) The chamber shall be constructed atleast 1.5 mtr away from the earth electrode. |
| 19 | Supply, laying, jointing, testing & commissioning of HT XLPE cable(heavy duty), 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 of cross sectional area 185 Sqmm, 3 core, laid in trenches /pipes /ducts /along poles/ walls/ equipment etc complete all as specified & directed. |
| 20 | Description all as per BOQ item No. 12 here-in-before butsize of cross sectional area 120 Sqmm, 3 core. |
| 21 | Description all as per BOQ item No. 12 here-in-before butsize of cross sectional area 95 Sqmm, 3 core.Notes for BOQ item No. 12 to 14 : (i) Cable shall be of manufacturing date not earlier than Jan 2025. All the cable shall be embossed with year of manufacturing, meterage at every metre, in addition to its own standard markings as per IS i.e. Size, voltage etc. (ii)Excavation & earth work, sand cushioning, protection pipes, end termination joints & protection covers shall be measuredand paid separately. (iii) No straight through joint shall be permitted in less than single drum length. (iv) The contractor shall produce original purchase vouchers duly machine numbered alongwith gate pass of factory for verification and record. (v) Cable shall be tested in the presence of Rep of Accepting officer at factory premises prior to despatch as & when requested by contractor through GE. |
| 22 | S&F cable jointing kitfor 11 KV earthed grade cable, straight through end termination heat shrinkable type joints with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120sqmm to 185Sqmm complete all as specified & directed. |
| 23 | Description all as per BOQ item No. 15 here-in-before butsize 95sqmm. |
| 24 | S&F cable jointing kitfor 11 KV earthed grade cable, indoor type, end termination heat shrinkable type joints with jointing material and accessories suitable suitable for 3 core XLPE armoured aluminium conductor cable of size 120sqmm to 185Sqmm complete all as specified & directed. |
| 25 | Description all as per BOQ item No. 17 here-in-before butsize 95sqmm. |
| 26 | S&Fcable jointing kitfor 11 KV earthed grade cable, outdoor type, end termination heat shrinkable type joints with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm complete all as specified & directed. |
| 27 | Description all as per BOQ item No. 19 here-in-before butsize 120sqmm. |
| 28 | Excavation in trenches, not exceeding 1.5mtr wide & not exceeding 1.5mtr in depth; for foundation, laying/taking out pipes/cables etc. or for shafts, wells, cesspits, manholes, pier holes, etc. not exceeding 10sqm on plan & not exceeding 1.5mtr in depth and getting out, in soft/loose type of soil complete all as specified & directed. |
| 29 | M&LSand cushioning with fine dry sand to cable with a layer of sand 8 cm thick before laying the cable and 15 cmthick after laying the cable (punned down to 18 cm thick after laying and stretching of cable) complete all as specified & directed. |
| 30 | M&Lun-reinforced precast concrete cable cover, Class HVP type-1 with peak, size 300mm x 180mm x 40mm, laid flatfor protection of cable, adjacent to each other, perpendicular to central axis of cable complete all as specified & directed. |
| 31 | Removal of excavatedsurplus soil to a distance not exceeding 50 mtr & depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified & directed. |
| 32 | Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25cm thick each in soft/loose type of soil complete all as specified & directed. |
| 33 | M&L GI pipe 100 mm bore, light grade, laid as in trenches, under road/floor/hardstanding for cable protectioncomplete all as specified & directed . |
| 34 | M&L GI pipe 80 mm bore, light grade, laid as in trenches, under road/floor/hardstanding for cable protectioncomplete all as specified & directed . |
| 35 | M&L boring of holes under road, pavement, hardstanding for passing/crossing pipes/cables upto size 100mm dia/bore at suitable depth (not below than 1mtr) bytrenchless technology using ultra sounding technique & Horizontal directional drilling (HDD) machine complete without damaging the surface and removing excavated soil to a distance not exceeding 50mtr complete all as specified & directed.Notes : Location of boring holes shall be decided by the Engineer-in-charge as per requirement, nothing extra shall be payable on account of variation in length of crossing of road etc. During boring soil strata may be changed, hence nothing extra shall be paid to the contractor for boring of holes through different strata/different type of soil. Cost for immediate restoration of existing services due to any damages during boring/excavation deemed to be included in quoted rates. |
| 36 | M&L HT cable route indicator made of Cast iron & engraved HT cable on 5mm thick MS plate of size 80mm dia including grouting the legs of suitable size flat iron, grouted in PCC 1:3:6 type C-1 using 20mm graded mechanically crushed stone aggregates block of size 150mm x 150mm x 150mm as in foundation including necessary form work complete all as specified & directed.Notes :- (i) PCC work including form work included in quoted rates.(ii) Steel surface shall be painted with two coats of synthetic enamel paint over & including one coat of zinc oxide primer and quoted rate are deemed to be included for this aspect. |
| 37 | Cutting the existing hard standing/hardsurface/ road to facilitate for laying of GI pipe and making good the disturbed portion to bring it to original condition with PCC 1:2:4 type B-1 using 20 mm graded stone aggregate over & including sub base of 75mm thick PCC 1:4:8 type D-2 using 40mm graded stone aggregate over rammed/compacted surface complete all as specified & directed. |
| 38 | For Credit Schedule refer Tender documents. The amount of Credit schedule shall be deducted from total quoted amount of BOQ to arrive Contract sum. |
