Supply, installation, testing and commissioning of HT 11,12 KV, 630A VCB panel near double pole structure at Muthinayuni cheruvu of ESD-West,Tirumala

Supply, Installation, Testing & Commissioning of HT 11/12KV, 630A, 25KA/26.3KA VCB panel shall be outdoor type totally enclosed, free standing, floor mounting type, compartment based with truck mounted, vacuum circuit breaker, spring operated, electrically and manually charged operating mechanism, suitable for horizontal isolation draw out type VCBs with copper busbars, self supported.

Insulated Busbar, with full voltage rated insulation shall be used. The switch gear panel shall be of 14SWG CRCA sheet for enclosure and shall totally dust and vermin proof. Panel shall be manufactured in conformation with IS/IEC 62271-200 and the VCB shall fully conform to IS/IEC 62271-100 standard and to IP55 degree of protection,comprising necessary busbar extension and connections and following protective and control devices as specified below. Circuit breaker shall be suitable for E2, M2, C2 and LSC2B duty. Vacuum interrupters of the circuit breakers shall be completely encapsulated in epoxy housing. Active and passive protection system against internal faults in each partitioned panel shall be provided for the safety of operators. Required fault capacity for internal arc is 25KA: In case of internal fault, the detection system shall open all circuit breakers.

A passive safety section shall ensure that hot gases shall be guided via pressure relief disks from each compartment connected. The pressure relief ducts ends shall be guided to open air or fitted with absorbes to cool the hot gases. Relief into a cable basement or cavity below a false floor is not acceptable. Makes: Siemens /L & T/ABB/ Schneider Electric. Current Transformer: The current transformer shall be single phase, resin-cast and suitable for system voltage of 11KV and of ratio 100-50/1-1A, Core 1: Class 0.25, 5VA for metering, Core 2: Class 5P10, 5VA - 3 Nos Makes: Kappa / Kalpa/ Straton / Precise/ Pragati / ECS/ NPT/ APSPDCL approved makes. Potential Transformer: The potential transformer shall be fixed type three nos of sinlge-phase, Resin-cast, suitable for system voltage 11KV and of ration: 11000V / √3 / 110V / √3; Sec.1: Class-0.2, 50VA; Sec.2: Cl. 3P, 50VA, with appropriate capacity PT fuses. Makes: Kappa / Kalpa / Straton/ Precise/ Pragati / ECS/ NPT/ APSPDCL approved makes.

METERING: 1. Digital Ammeter with selector switch Class 0.2/0.5 Makes: Elmeasure / Schneider / Secure. 2. Digital Voltmeter with selector switch Class 0.2/0.5 Makes: Elmeasure / Schneider / Secure. 3. HT Trivector meter with TTB with RS485 port for communication in MODBUS protocol, Class 0.2S Make: L & T/ Secure.

Protection: Numerical relay : Relay shall be Microprocessor based Numerical relay, communicable type, in line with IEC 61850 protocol, having phase over current (50/51), Directional phase over current (67), SOTF (Switch on to fault) (50 HS), Current unbalance (46), Thermal overload (49),Earth fault (50N/51N), Directional earth fault (67N), Under voltage(27), Over voltage(59), Zero sequence voltage protection(59N), Frequency(81), directional power(32), auto reclose(779), Circuit breaker failure (50BF), Cold load pick-up and magnetising inrush, programmable stages(99), Synchro check(25), CB wear. The relay shall have 4 CT and 4 VT inputs with dual FO ports. The relay shall be provided with atleast 16 digital inputs and 8 digital out puts and 1 self supervision output. Make: ABB / Schneider / Siemens/ L & T/ APSPDCL approved makes.

High speed Master trip relay. Makes: Ashida / ABB / Schneider / APSPDCL approved makes. Indication lamps for VCB OFF / ON/ Auto Trip / Trip circuit healthy / Spring charge3d. Microprocessor based, 8 window Annunciator, Breaker control switch (TNC). Control wiring with appropriate colors: MCBs for AC and DC: AC & DC fail relay with alarm: Trip circuit. Supervision Relay : 240V DC Battery charger with 2 Nos of 12V, 18Ah batteries. Batteries Make: Amaron / Exide. Warranty of batteries: 2 Years Miscellaneous items : Panel space heaters with thermostat, Panel illumination lamp with door switch, 5/15A, 3 Pin power socket with switch, control MCB's & Internal wiring with copper wires, lugs, connections etc.

Busbar Rating: 11KV, 630A, high conductivity Electrolytic copper busbar with Air-insulated, HT sleeved busbars and earth bus. Panel: The switch gear cubicle shall be fabricated with 14 SWG CRCA sheet steel and shall be folded and braced to provide rigid support for all compartments. The VCB compartment shall be provided with explosion vents or similar safety arrangements at the top of the panels to let out gases under pressure generated during event of any rare. Servere faults inside the panel. Breaker panel must be type tested as per relevant standards. The entire panel shall be powder coated with shade RAL 7032, suitable for outdoor installation. The entire VCB panel shall be mounted on suitable MS channel with neat fabrication, duly painting the channel with black color, over red oxide paint. Suitable provision of gland plates to the panel for incoming & outgoing cables through entry, shall be provided

Supply and Transportation of 95 sq.mm 3 core 11 KV HT XLPE (E) insulated and armoured aluminium U.G. Cable as per IS specification confirming to IS:7098 / 11 / 85 H.T. cable for working voltage 11 K.V Earthed with Stranded Compacted Circular Aluminium Conductor Screened with Extruded Semi-conducting compound, XLPE Insulated Screened with extruded semi-conducting compound in combination with Copper Tape, cores laid up, inner sheath of Thermoplastic tape, galvanised flat steel strip armoured and overall Extruded PVC Type ST- 2 Outer Sheathed cable etc complete. Make: Torrent / Universal / Unistar / Havells / KEI / Polycab / Gloster / RR Kabel / RPG / Finolex

Supply and Making heat shrinkable type indoor terminations / joint kit of approved make suitable for XLPE insulated 11 KV cable, with required components, prepration of cable ends, testing etc. as required up to 3 core 70 / 95 Sq.mm sizes. Makes: Raychem /M seal / Denson / Multy / Transeal- Hongshang

Supply and Making heat shrinkable type outdoor terminations / joint kit of approved make suitable for XLPE insulated 11 KV cable, with required components, prepration of cable ends, testing etc. as required of 3 core 70 / 95 Sq.mm sizes. Makes: Raychem / M seal / Denson / Multy / Transeal- Hongshang

Only Laying of U.G cables size from 70 Sq,mm to 150 sq.mm and back filling of trench including labour charges etc.,complete.

Laying of U.G cables from 70 Sq,mm to 150 Sq.mm through existing G.I. / HDPE Pipe and back filling of trench including labour charges etc.,complete.(Excluding the cost of G.I / HDPE Pipe)

Earth Work excavation for trench for laying of U.G. Cable in ordinary Soils, manual means to the required width and depth and depositing the same on bank as directed during execution etc., complete .

Supply Laying and Transportation of Outer dia 90mm and inner dia 76mm, 6Kg/Sq.Cm (PE- 100 grade) double walled corrugated HDPE duct made as per specification BSEN - 500 86/IS 14930 Part-II. Make: DURA LINE (Dura Guard) or its equivalent make.

Providing earthing as per IS 3043/ 1987 with 100mm (ID), 13mm thick C.I. Pipe of 3.0 mtr. length after excavating an earth pit of size1.5 m X 0.9 M X 3.00M(Top 1.50 m X 1.20 m X 0.9m & bottom 1.20 M X 1.20 M X 1.65 M) and filling with a homogenous layer of 40 Kgs. of Coke / Char Coal, 20 Kgs. of Salt and the required quantity of sand around 100mm pipe from the bottom of the pipe to a height of 2.7mtr. and filling the remaining excavated portion with earth and consolidation / Settlement of the trench should be done by filling with sufficient quantity of water.

A concrete bed of size 0.8 M X 0.8 M X 0.1 M thick and an inspection chamber having inside measurements of 0.4 M X0.4 M X 0.4 M with wall thickness of 100 mm with cement concrete CC (1:2.5:5) using 20 mm HBG Metal is to be constructed with side wall 100 mm above ground level and plastering the exposed walls neatly with CM (1:3) with 12 mm thick. The Top of the Inspection Chamber is to be provided with reinforced precasted RCC Slab with 40mm thick with lifting hook. The top of C.I. Pipe is to be fixed & welded with suitable G.I. Wire mesh funnel 50mm x 6mm G.I. Strip having length of 300mm is to be fixed to the top of C.I. Pipe with G.I. Clamps fabricated with 50 x 3mm G.I. Flats with necessary bolts and nuts and necessary welding to be done to the clamps and C.I. Pipe.

2 Nos. of holes are to be drilled on either side of G.I. Flat for Extending earth connections. 65mm dia PVC Pipe is to be embedded at the pit entry for earth. After laying earth from earth conductor bus to Electrode trough PVC Pipe, the surface should be covered with bitumen and grease. The cost of GI/Copper flat to be run from CI Pipe electrode to the equipment is to be made separately on running meter basis. The work shall be executed strictly as per IS 3043 - 1987. The rate includes cost and conveyance of all materials, labour charges, incidental charges etc., complete (Note:- Necessary meggaring testing is to be carried out in the presence of concerned Engineers and measurement of resistance shall be as per ISI standards)

Supply and run of 25mm X 6mm G.I Strip for earth electrode to required places by Surface in walls, flooring including cost of all accessories and giving necessary connection with 3/8"x2" GI Bolts, Nuts and Washers wherever joints has to be done. The strip has to be either riveted (or) bolted (or) gas welding neatly and all labour charges etc., complete.

Supplying and fixing inposition M.S Ornamental grills for windows and ventilators or forver and a opening susing M.S.Flats, squarerods, angles sheets etc., of approved design including necessary cuttings, bending fabrication, welding, grinding and finishing smooth including painting the grills with Two coats with Synthetic enamel paint Gr-Iover a Primary coat (Red oxide metal primer) (total three coats) of approved make and colour including cost of making the holes into RCC or masonry works and making good the same wherever necessary, including cost and conveyance of all materials, incidental charges etc., complete.

NOTE (i)The rates are of basic rates excluding GST. (ii) The applicable GST will be reimbursed/paid as per actuals on production of proof. (iii)Statutory deductions will be made as per norms, if applicable. Any modalities imposed on GST by the Government from time to time, the same will be implemented.

Supply, Installation, Testing & Commissioning of HT 11/12KV, 630A, 25KA/26.3KA VCB panel shall be outdoor type totally enclosed, free standing, floor mounting type, compartment based with truck mounted, vacuum circuit breaker, spring operated, electrically and manually charged operating mechanism, suitable for horizontal isolation draw out type VCBs with copper busbars, self supported.

Insulated Busbar, with full voltage rated insulation shall be used. The switch gear panel shall be of 14SWG CRCA sheet for enclosure and shall totally dust and vermin proof. Panel shall be manufactured in conformation with IS/IEC 62271-200 and the VCB shall fully conform to IS/IEC 62271-100 standard and to IP55 degree of protection,comprising necessary busbar extension and connections and following protective and control devices as specified below. Circuit breaker shall be suitable for E2, M2, C2 and LSC2B duty. Vacuum interrupters of the circuit breakers shall be completely encapsulated in epoxy housing. Active and passive protection system against internal faults in each partitioned panel shall be provided for the safety of operators. Required fault capacity for internal arc is 25KA: In case of internal fault, the detection system shall open all circuit breakers.

A passive safety section shall ensure that hot gases shall be guided via pressure relief disks from each compartment connected. The pressure relief ducts ends shall be guided to open air or fitted with absorbes to cool the hot gases. Relief into a cable basement or cavity below a false floor is not acceptable. Makes: Siemens /L & T/ABB/ Schneider Electric. Current Transformer: The current transformer shall be single phase, resin-cast and suitable for system voltage of 11KV and of ratio 100-50/1-1A, Core 1: Class 0.25, 5VA for metering, Core 2: Class 5P10, 5VA - 3 Nos Makes: Kappa / Kalpa/ Straton / Precise/ Pragati / ECS/ NPT/ APSPDCL approved makes. Potential Transformer: The potential transformer shall be fixed type three nos of sinlge-phase, Resin-cast, suitable for system voltage 11KV and of ration: 11000V / √3 / 110V / √3; Sec.1: Class-0.2, 50VA; Sec.2: Cl. 3P, 50VA, with appropriate capacity PT fuses. Makes: Kappa / Kalpa / Straton/ Precise/ Pragati / ECS/ NPT/ APSPDCL approved makes.

METERING: 1. Digital Ammeter with selector switch Class 0.2/0.5 Makes: Elmeasure / Schneider / Secure. 2. Digital Voltmeter with selector switch Class 0.2/0.5 Makes: Elmeasure / Schneider / Secure. 3. HT Trivector meter with TTB with RS485 port for communication in MODBUS protocol, Class 0.2S Make: L & T/ Secure.

Protection: Numerical relay : Relay shall be Microprocessor based Numerical relay, communicable type, in line with IEC 61850 protocol, having phase over current (50/51), Directional phase over current (67), SOTF (Switch on to fault) (50 HS), Current unbalance (46), Thermal overload (49),Earth fault (50N/51N), Directional earth fault (67N), Under voltage(27), Over voltage(59), Zero sequence voltage protection(59N), Frequency(81), directional power(32), auto reclose(779), Circuit breaker failure (50BF), Cold load pick-up and magnetising inrush, programmable stages(99), Synchro check(25), CB wear. The relay shall have 4 CT and 4 VT inputs with dual FO ports. The relay shall be provided with atleast 16 digital inputs and 8 digital out puts and 1 self supervision output. Make: ABB / Schneider / Siemens/ L & T/ APSPDCL approved makes.

High speed Master trip relay. Makes: Ashida / ABB / Schneider / APSPDCL approved makes. Indication lamps for VCB OFF / ON/ Auto Trip / Trip circuit healthy / Spring charge3d. Microprocessor based, 8 window Annunciator, Breaker control switch (TNC). Control wiring with appropriate colors: MCBs for AC and DC: AC & DC fail relay with alarm: Trip circuit. Supervision Relay : 240V DC Battery charger with 2 Nos of 12V, 18Ah batteries. Batteries Make: Amaron / Exide. Warranty of batteries: 2 Years Miscellaneous items : Panel space heaters with thermostat, Panel illumination lamp with door switch, 5/15A, 3 Pin power socket with switch, control MCB's & Internal wiring with copper wires, lugs, connections etc.

Busbar Rating: 11KV, 630A, high conductivity Electrolytic copper busbar with Air-insulated, HT sleeved busbars and earth bus. Panel: The switch gear cubicle shall be fabricated with 14 SWG CRCA sheet steel and shall be folded and braced to provide rigid support for all compartments. The VCB compartment shall be provided with explosion vents or similar safety arrangements at the top of the panels to let out gases under pressure generated during event of any rare. Servere faults inside the panel. Breaker panel must be type tested as per relevant standards. The entire panel shall be powder coated with shade RAL 7032, suitable for outdoor installation. The entire VCB panel shall be mounted on suitable MS channel with neat fabrication, duly painting the channel with black color, over red oxide paint. Suitable provision of gland plates to the panel for incoming & outgoing cables through entry, shall be provided

Supply and Transportation of 95 sq.mm 3 core 11 KV HT XLPE (E) insulated and armoured aluminium U.G. Cable as per IS specification confirming to IS:7098 / 11 / 85 H.T. cable for working voltage 11 K.V Earthed with Stranded Compacted Circular Aluminium Conductor Screened with Extruded Semi-conducting compound, XLPE Insulated Screened with extruded semi-conducting compound in combination with Copper Tape, cores laid up, inner sheath of Thermoplastic tape, galvanised flat steel strip armoured and overall Extruded PVC Type ST- 2 Outer Sheathed cable etc complete. Make: Torrent / Universal / Unistar / Havells / KEI / Polycab / Gloster / RR Kabel / RPG / Finolex

Supply and Making heat shrinkable type indoor terminations / joint kit of approved make suitable for XLPE insulated 11 KV cable, with required components, prepration of cable ends, testing etc. as required up to 3 core 70 / 95 Sq.mm sizes. Makes: Raychem /M seal / Denson / Multy / Transeal- Hongshang

Supply and Making heat shrinkable type outdoor terminations / joint kit of approved make suitable for XLPE insulated 11 KV cable, with required components, prepration of cable ends, testing etc. as required of 3 core 70 / 95 Sq.mm sizes. Makes: Raychem / M seal / Denson / Multy / Transeal- Hongshang

Only Laying of U.G cables size from 70 Sq,mm to 150 sq.mm and back filling of trench including labour charges etc.,complete.

Laying of U.G cables from 70 Sq,mm to 150 Sq.mm through existing G.I. / HDPE Pipe and back filling of trench including labour charges etc.,complete.(Excluding the cost of G.I / HDPE Pipe)

Earth Work excavation for trench for laying of U.G. Cable in ordinary Soils, manual means to the required width and depth and depositing the same on bank as directed during execution etc., complete .

Supply Laying and Transportation of Outer dia 90mm and inner dia 76mm, 6Kg/Sq.Cm (PE- 100 grade) double walled corrugated HDPE duct made as per specification BSEN - 500 86/IS 14930 Part-II. Make: DURA LINE (Dura Guard) or its equivalent make.

Providing earthing as per IS 3043/ 1987 with 100mm (ID), 13mm thick C.I. Pipe of 3.0 mtr. length after excavating an earth pit of size1.5 m X 0.9 M X 3.00M(Top 1.50 m X 1.20 m X 0.9m & bottom 1.20 M X 1.20 M X 1.65 M) and filling with a homogenous layer of 40 Kgs. of Coke / Char Coal, 20 Kgs. of Salt and the required quantity of sand around 100mm pipe from the bottom of the pipe to a height of 2.7mtr. and filling the remaining excavated portion with earth and consolidation / Settlement of the trench should be done by filling with sufficient quantity of water.

A concrete bed of size 0.8 M X 0.8 M X 0.1 M thick and an inspection chamber having inside measurements of 0.4 M X0.4 M X 0.4 M with wall thickness of 100 mm with cement concrete CC (1:2.5:5) using 20 mm HBG Metal is to be constructed with side wall 100 mm above ground level and plastering the exposed walls neatly with CM (1:3) with 12 mm thick. The Top of the Inspection Chamber is to be provided with reinforced precasted RCC Slab with 40mm thick with lifting hook. The top of C.I. Pipe is to be fixed & welded with suitable G.I. Wire mesh funnel 50mm x 6mm G.I. Strip having length of 300mm is to be fixed to the top of C.I. Pipe with G.I. Clamps fabricated with 50 x 3mm G.I. Flats with necessary bolts and nuts and necessary welding to be done to the clamps and C.I. Pipe.

2 Nos. of holes are to be drilled on either side of G.I. Flat for Extending earth connections. 65mm dia PVC Pipe is to be embedded at the pit entry for earth. After laying earth from earth conductor bus to Electrode trough PVC Pipe, the surface should be covered with bitumen and grease. The cost of GI/Copper flat to be run from CI Pipe electrode to the equipment is to be made separately on running meter basis. The work shall be executed strictly as per IS 3043 - 1987. The rate includes cost and conveyance of all materials, labour charges, incidental charges etc., complete (Note:- Necessary meggaring testing is to be carried out in the presence of concerned Engineers and measurement of resistance shall be as per ISI standards)

Supply and run of 25mm X 6mm G.I Strip for earth electrode to required places by Surface in walls, flooring including cost of all accessories and giving necessary connection with 3/8"x2" GI Bolts, Nuts and Washers wherever joints has to be done. The strip has to be either riveted (or) bolted (or) gas welding neatly and all labour charges etc., complete.

Supplying and fixing inposition M.S Ornamental grills for windows and ventilators or forver and a opening susing M.S.Flats, squarerods, angles sheets etc., of approved design including necessary cuttings, bending fabrication, welding, grinding and finishing smooth including painting the grills with Two coats with Synthetic enamel paint Gr-Iover a Primary coat (Red oxide metal primer) (total three coats) of approved make and colour including cost of making the holes into RCC or masonry works and making good the same wherever necessary, including cost and conveyance of all materials, incidental charges etc., complete.

NOTE (i)The rates are of basic rates excluding GST. (ii) The applicable GST will be reimbursed/paid as per actuals on production of proof. (iii)Statutory deductions will be made as per norms, if applicable. Any modalities imposed on GST by the Government from time to time, the same will be implemented.

(Rupees Seven lakhs fourty three thousands two hundred two and paise twenty six only)