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What is cable size for a 7.5kw 3 phase induction motor 70 meter run for cable 415v?
Current is about 18 amps per phase. Allowing for power factor and startup, I'd size the wire for 40 amps per phase, which is #5 wire. This wire has a resistance of 0.39 ohm per 1000 ft, which is 0.39 ohms per 305 meter, or 0.09 ohms per 70 meter. At 40 amps, there is a voltage drop on the wire of 40*.09 or 3.6 volts, less than 1% loss, so that is OK. Use 4 conductor #5 copper wire insulated for 480 volts. <<>> A #12 copper conductor will limit the voltage drop to 3% or less when supplying 13 amps for 230 feet on a 415 volt system.
What is the current carrying capacity of sq mm copper and aluminium wire table?
For 3-core twin and earth cables up to 4 sq mm with reasonable air circulation, allow 8 amps per sq mm for copper and 5 amps per sq mm for aluminium. For permanent installations with high usage per day, use 4 amps per sq mm.
What is current carring capacity of copper bus bar of size 60 X 10 mm?
Cross section area =60x10=600Sqmm For copper we can utilised 2 amps per sqmm hence we can load upto 1200 amps easily.
1 sq mm copper wire current rating?
it depend upon the length but for small length we can say 3 amp . . . . . . . . . . . . . . . <<>> 1 sq mm 3-core cable is rated at a maximum of 10 amps but for extended use of up to 6hr per day small cables should be rated at 4 amp per sq. mm, and for continuous use 2 amps per sq. mm..
What is amps per minute?
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What is cable size for a 7.5kw 3 phase induction motor 70 meter run for cable 415v?
Current is about 18 amps per phase. Allowing for power factor and startup, I'd size the wire for 40 amps per phase, which is #5 wire. This wire has a resistance of 0.39 ohm per 1000 ft, which is 0.39 ohms per 305 meter, or 0.09 ohms per 70 meter. At 40 amps, there is a voltage drop on the wire of 40*.09 or 3.6 volts, less than 1% loss, so that is OK. Use 4 conductor #5 copper wire insulated for 480 volts. <<>> A #12 copper conductor will limit the voltage drop to 3% or less when supplying 13 amps for 230 feet on a 415 volt system.
What size cable for 148 amps per NEC?
For 148 amps per NEC, you would typically use a 3/0 AWG copper cable for a maximum voltage drop of 3%. This size cable is rated to safely carry 148 amps while meeting the National Electrical Code (NEC) requirements. It's always best to consult the NEC and a qualified electrician to ensure compliance and safety for your specific application.
What is the weight of 500mcm thhn insulated copper cable per foot?
The weight of 500MCM THHN insulated copper cable is approximately 1.002 pounds per foot.
What is the current carrying capacity of sq mm copper and aluminium wire table?
For 3-core twin and earth cables up to 4 sq mm with reasonable air circulation, allow 8 amps per sq mm for copper and 5 amps per sq mm for aluminium. For permanent installations with high usage per day, use 4 amps per sq mm.
Amps on a 600 mcm copper?
475 amps, per NEC 310-16. Note that this is a maximum; there are many reasons to derate the current carrying capacity of the wire.
What is current carring capacity of copper bus bar of size 60 X 10 mm?
Cross section area =60x10=600Sqmm For copper we can utilised 2 amps per sqmm hence we can load upto 1200 amps easily.
1 sq mm copper wire current rating?
it depend upon the length but for small length we can say 3 amp . . . . . . . . . . . . . . . <<>> 1 sq mm 3-core cable is rated at a maximum of 10 amps but for extended use of up to 6hr per day small cables should be rated at 4 amp per sq. mm, and for continuous use 2 amps per sq. mm..
What size swa cable is required to supply a door heater carrying 18.9Amps per phase?
Cable for 19 amps continuous should have a cross-section area of 6 mm2.
What size steel wire armoured cable for 40 amps 230 volts at 500 meters away?
On a 230 v supply assuming a volt-drop of 5% that is 11.5 v, so the maximum cable resistance is 11.5 / 40 in ohms, 0.2875 ohms so for 1000 metres of cable in total you need a cable that has 0.0002875 ohms of resistance per metre. Copper with a cross-section of 1 mm2 has resistance of 0.0168 ohms per metre so the size of cable needed is 0.0168 / 0.0002875 mm2, which is 58.43 mm2, so a cable of 60 mm2 should be selected.
How many amps will taken by 1sq mm alluminium wire?
1 mm2 aluminium wire is not easy to buy but 1 mm2 copper wire is rated at 10 amps. Since the conductivity of aluminium is 7/12 that of copper, 1 mm2 aluminium wire would be rated at 7½ amps max (the same amount of heat is produced per metre by a current of sqrt(7/12) times that for copper).
How much amps will taken in 35 sq mm wire?
A 4 mm diameter copper wire with an insulation factor of 75 or 90 degrees C is rated at 65 amps.
What size power cable is needed for 30KW 440V 3phase 50Hz induction motor?
Use this formula to find amperage when kW is shown. Amps = kW x 1000/1.73 x Volts x pf. Use a power factor of .85 for the formula. Once the current is calculated re-ask the question for cable size for the calculated current.
