0
I would recommend no smaller than #8awg copper. This is derived by 8awg copper ampacity of 40 amps multiplied by 80% load rating to get 32 amps. Then calculating for voltage drop over this distance shows a drop of 5.9 volts or 2.5% which is negligible so not accounted for. So like i said no smaller than #8awg copper.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThis is a voltage drop question. A #2/0 copper conductor will limit the voltage drop to 3% or less when supplying 20 amps for 700 feet on a 110 volt system.
If there is a possibility of using a 220 volt source the wire size can be changed to a #3 copper conductor will limit the voltage drop to 3% or less when supplying 20 amps for 700 feet on a 220 volt system.
Wiki User
∙ 9y agoAnswer Using stranded copper: Minimum of 2 AWG
Using stranded aluminium: Minimum of 4/0 AWG.
Wiki User
∙ 9y agoA #1 copper conductor will limit the voltage drop to 3% or less when supplying 30 amps for 700 feet on a 240 volt system.
Wiki User
∙ 9y agoA #8 copper conductor will limit the voltage drop to 3% or less when supplying 28 amps for 140 feet on a 240 volt system.
Wiki User
∙ 12y agoThis is a voltage drop question. A #2/0 copper conductor will limit the voltage drop to 3% or less. This calculation is for supplying 20 amps over 700 feet using a 110 volt system.
Add your answer:
Earn +20 pts
What wire size needed for 120 volt 3000 watt load?
AWG # 10 wire on 30 amp circuit.
What size wire for neutral in a 240v 30 amp circuit?
Answer for USA, Canada and countries running a 60 Hz supply service.240 volt two wire circuits loads do not need a neutral to operate. A three wire 240 volt circuit that needs a neutral, will have a neutral the same size as the current carrying conductors. In this case a #10.
What is the minimum ground wire size for a 20 amp 110 volt circuit?
The ground wire in a two or three conductor #12 cable is a #14 bare ground wire.
Can you wire a 120 volt ballast to a 347 volt circuit?
No, not a good idea. You have to use a 347 volt ballast.
What size wire for a 230 volt circuit?
The size of the wire is set by the maximum current it has to carry. The voltage sets the size of the insulation. In the UK a 230 v (nominal) ring-circuit supplying a set of power sockets is rated at 30 amps and uses a ring of 2.5 sq-mm cable.
What size wire in a 40 amp 12 volt circuit?
Use 8 gauge wire.
What size wire for an 80 amp 220 volt circuit?
# 3 gauge
What wire size needed for 120 volt 3000 watt load?
AWG # 10 wire on 30 amp circuit.
What wire size is needed for 15 volt circuit?
The wire size depends on how much current it will conduct.
What size wire do you need to run 100 ft 75 amp 230 volt?
Depends on the size of the circuit which you did not list.
What size wire is required for 277 volt fluorescent lighting?
Wire size is governed by amperage not voltage. Voltage is an insulation factor when talking about wire. Add up the amperage of fixtures you want in the circuit. Once that is found then the size of the wire can be calculated.
What size wire for neutral in a 240v 30 amp circuit?
Answer for USA, Canada and countries running a 60 Hz supply service.240 volt two wire circuits loads do not need a neutral to operate. A three wire 240 volt circuit that needs a neutral, will have a neutral the same size as the current carrying conductors. In this case a #10.
What is the minimum ground wire size for a 20 amp 110 volt circuit?
The ground wire in a two or three conductor #12 cable is a #14 bare ground wire.
Can you wire a 120 volt ballast to a 347 volt circuit?
No, not a good idea. You have to use a 347 volt ballast.
What size wire for a 230 volt circuit?
The size of the wire is set by the maximum current it has to carry. The voltage sets the size of the insulation. In the UK a 230 v (nominal) ring-circuit supplying a set of power sockets is rated at 30 amps and uses a ring of 2.5 sq-mm cable.
What size wire and breaker is needed via 20ft length for a Westonhouse 1500w floodlight?
If it is a 110 volt light it can safely run on a 20 amp circuit with AWG # 12 wire.
What size wire is needed to run a 75 amp 240 volt circuit with 100 ft run?
I would use AWG # 4 copper.
