SPECIAL REPAIR/REPLACEMENT OF EXISITING PANELS AND DBs AT HQ SNC KOCHI

Amount

Taking down LT Panel carefully by disconnecting all existing connections, panel foundation nuts bolts, remove from the site and making good the disturbed surface with necessary PCC works complete all as specified and directed.

Material & Labour for chemical earthing complete with copper earth plate electrode 90cm x 60cm x 5mm thick buried directly in ground vertically with top edge of the plate not less than 3.5 m below normal ground level ( The depth of pit not less than 4.2 m below normal ground level), earth plate surrounded by packed layers of mixture of magnesium sulphate (MgSO4), common salt , Charcoal dust and also mixing of Bentonite with water, electrode connected with & including earth lead of copper strip 50 x 6 mm by means of oxyacetylene copper brazing as directed by Engineer -in - charge and other end of the earth lead connected to main switch board or main control board or test point or equipment, earth lead protected by galvanised iron pipe light grade (ISI marked) 50 mm bore along with watering pipe 20 mm bore GI medium grade (ISI Marked of specified make ), funnel with wire mesh , including all excavation and earth work, PCC chamber in PCC (1:2:4) type B1 and RCC cover (in lieu of CI cover ) all as shown in electrical plate No 3 of MES Schedule part I (2009, complete including taking down old unserviceable earth pit complete all as specified and as directed.

Fabricate Supply, install, testing and commissioning in replacement of Modular LT panel suitable for 415 Volts, 3 Phase 4 Wire, 50 Hz AC Supply System confirming to IS: 8623/93, Indoor type floor mounting along with factory made type panel weather proof, vermin proof, fully ventilated and fabricated out of MS CRCA sheet of 2 mm thick having copper bus bar of rating 1200 Amps, three phase and one neutral fixed on insulator and bus bar insulated by coloured heat shrinkable sleeves. The panel shall be front and back open able and having inner & outer shells. The inner shell duly compartmented for each control gear, including Powder coating internally and externally the entire steel surfaces. All the cover shall be provided with suitable locking arrangements. The size of the outer shell should not be less than 450mm width mounted on angle iron / channel stand of minimum 60 cm height from the PCC grounding made out of angle size 50 X 50 X 6 mm grouted in PCC 1:3:6, including accommodating the following controls gears.

IN COMING (a) ACB 800A, 50kA ,FP Manual D/O type ACB with Microprocessor Based LSIG Protection Release - 01 Nos (b) Multifunction Meter with RS485 Communication Port, Cl- 0.5 (Set of three) - 01 Set (c) Metering CTs Class 0.5, 10VA - 01 Nos. (d) RYB Phase Indication LED Cluster Type Lamps (Set of three) - 01 Set. (e) ON, OFF&TRIP Indication LED Cluster Type Lamps (Set of three) - 01 Set. (f) 6A Control MCB SP type (Set of four) - 01 Set. (g) 800 Amps on load change over switch 4 pole. OUT GOING (a) MCCB 4 pole of rating 400 Amps 36 KA, - 1 (b) MCCB 4 pole of rating 250 Amps 36 KA, - 1 (c) MCCB 4 pole of rating 100 Amps 25 KA, - 7 (d) MCCB 4 pole of rating 63 Amps 25 KA, - 7 (e) MCCB 4 pole of rating 100 Amps 25 KA, - 1(Spare) (f) MCCB 4 pole of rating 63 Amps 25 KA, - 1(Spare) Note: - (i) Cable and cable jointing kit are required deemed to be inclusive of quoted rates.

Fabricate Supply, install, testing and commissioning in replacement of Modular LT panel suitable for 415 Volts, 3 Phase 4 Wire, 50 Hz AC Supply System confirming to IS: 8623/93, Indoor type floor mounting along with factory made type panel weather proof, vermin proof, fully ventilated and fabricated out of MS CRCA sheet of 2 mm thick having copper bus bar of rating 400 Amps, three phase and one neutral fixed on insulator and bus bar insulated by coloured heat shrinkable sleeves. The panel shall be front and back open able and having inner & outer shells. The inner shell duly compartmented for each control gear, including Powder coating internally and externally the entire steel surfaces. All the cover shall be provided with suitable locking arrangements. The size of the outer shell should not be less than 450mm width mounted on angle iron / channel stand of minimum 60 cm height from the PCC grounding made out of angle size 50 X 50 X 6 mm grouted in PCC 1:3:6, including accommodating the following controls gears.

IN COMING (a) 250A, 36kA 4P MCCB - 01 Nos (b) Multifunction Meter with RS485 Communication Port, Cl- 0.5- 01 No (c) Metering CTs Class 0.5, 10VA - 01 No. (d) RYB Phase Indication LED Cluster Type Lamps (Set of three) - 01 Set. (e) ON,OFF&TRIP Indication LED Cluster Type Lamps (Set of three) - 01 Set. (f) 6A Control MCB SP type (Set of four) - 01 Set. OUT GOING (a) MCCB 4 pole of rating 100 Amps 25 KA, - 1 (b) MCCB 4 pole of rating 63 Amps 25 KA, - 5 (c) MCCB 4 pole of rating 32 Amps 25 KA - 5 (d) MCCB 4 pole of rating 63 Amps 25 KA, - 1(Spare) (e) MCCB 4 pole of rating 32 Amps 25 KA, - 1(Spare) Note: - (i) Cable and cable jointing kit are required deemed to be inclusive of quoted rates.

Fabricate Supply, install, testing and commissioning in replacement of Modular LT panel suitable for 415 Volts, 3 Phase 4 Wire, 50 Hz AC Supply System confirming to IS: 8623/93, Indoor type floor mounting along with factory made type panel weather proof, vermin proof, fully ventilated and fabricated out of MS CRCA sheet of 2 mm thick having copper bus bar of rating 1200 Amps, three phase and one neutral fixed on insulator and bus bar insulated by coloured heat shrinkable sleeves. The panel shall be front and back open able and having inner & outer shells. The inner shell duly compartmented for each control gear, including Powder coating internally and externally the entire steel surfaces. All the cover shall be provided with suitable locking arrangements. The size of the outer shell should not be less than 450mm width mounted on angle iron / channel stand of minimum 60 cm height from the PCC grounding made out of angle size 50 X 50 X 6 mm grouted in PCC 1:3:6, including accommodating the following controls gears.

IN COMING (a) ACB 800A, 50kA ,FP Manual D/O type ACB with Microprocessor Based LSIG Protection Release - 01 Nos (b) Multifunction Meter with RS485 Communication Port, Cl-0.5 (Set of three) - 01 Set (c) Metering CTs Class 0.5, 10VA (Set of three) - 01 Set. (d) RYB Phase Indication LED Cluster Type Lamps (Set of three) - 01 Set. (e) ON, OFF&TRIP Indication LED Cluster Type Lamps (Set of three) - 01 Set. (f) 6A Control MCB SP type (Set of four) - 01 Set. (f) 63 Amp 4 Pole On load change over switch- 01 . (g) 800 Amps on load change over switch 4 pole. OUT GOING (a) MCCB 4 pole of rating 63 Amps 25 KA, - 13 (b) MCCB 4 pole of rating 32 Amps 25 KA, - 1 (c) MCCB 4 pole of rating 63 Amps 25 KA, - 2(Spare) (d) MCCB 4 pole of rating 32 Amps 25 KA, - 1(Spare) (e) MCCB 4 pole of rating 32 Amps 25 KA, - 1(Spare) Note: - (i) Cable and cable jointing kit are required deemed to be inclusive of quoted rates.

Fabricate Supply, install, testing and commissioning in replacement of Modular LT panel suitable for 415 Volts, 3 Phase 4 Wire, 50 Hz AC Supply System confirming to IS: 8623/93, Indoor type floor mounting along with factory made type panel weather proof, vermin proof, fully ventilated and fabricated out of MS CRCA sheet of 2 mm thick having copper bus bar of rating 600 Amps, three phase and one neutral fixed on insulator and bus bar insulated by coloured heat shrinkable sleeves. The panel shall be front and back open able and having inner & outer shells. The inner shell duly compartmented for each control gear, including Powder coating internally and externally the entire steel surfaces. All the cover shall be provided with suitable locking arrangements. The size of the outer shell should not be less than 450mm width mounted on angle iron / channel stand of minimum 60 cm height from the PCC grounding made out of angle size 50 X 50 X 6 mm grouted in PCC 1:3:6, including accommodating the following controls gears.

IN COMING (a) 400A, 36kA 4P MCCB - 01 Nos (b) Multifunction Meter with RS485 Communication Port, Cl- 0.5 - 01 No (c) Metering CTs Class 0.5, 10VA (Set of three) - 01 Set. (d) RYB Phase Indication LED Cluster Type Lamps (Set of three) - 01 Set. (e) ON, OFF&TRIP Indication LED Cluster Type Lamps (Set of three) - 01 Set. (f) 6A Control MCB SP type (Set of four) - 01 Set. OUT GOING (a) MCCB 4 pole of rating 250 Amps 25 KA, - 1 (b) MCCB 4 pole of rating 63 Amps 25 KA, - 10 (c) MCCB 4 pole of rating 32 Amps 25 KA - 5 (d) MCCB 4 pole of rating 63 Amps 25 KA, - 2(Spare) Note: - (i) Cable and cable jointing kit are required deemed to be inclusive of quoted rates.

Underground pneumatic horizontal drilling of holes under road, pavement, hard standing as required length at site by trenchless technology using ultra sound technique with necessary horizontal direction drilling (HDD) machine including providing HDPE Pipe 80 mm outer dia 0.40 mpa including necessary joint connections and laying LT/HT cable, The contractor shall be conduct underground scanning to detect existing HT/LT cable line, sewage line, OFC Cable etc to avoid damage, The entry/exist hole must be large enough to fit the drilling tool and the operator in it so they can aim the tool, The hole also must be deep enough that as the tool compacts the ground and the surface to be remain undisturbed, The death of the starting bore pit depends on the type of the soil that is being worked in and how well it compacts, The operator shall aim the tool to the desire exit point and allow it to perform it function creating a bore hole under the ground without disturbing surfaces, The operator also should monitor the surface to make sure that, it is undisturbed, As the tool near to the exit point it is slowed down and the exit pit should be dug to locate both the tool and the bore, As the tool enters the exit pit the operator should choose either dig up the tool to retrieve it or reverses the tool back into the first bore pit to retrieve it including connected earth work, complete all as specified and directed by Engineer-in-Charge.

Amount of Credit Schedule shall be deducted to arrive the Contract Sum.

National Electric Co

NLK Construction

M/s.Rejoy Constructions

P N Enterprises

Linsta Services

Green Ray Enterprises

WELTRONENGINEERINGSERVICES