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A #8 copper wire with an insulation factor of 75 or 90 degrees C has a rating of 45 amps. The load amperage and voltage must be stated to give a voltage drop calculation.
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The answer requires more information i.e. what is the voltage how far do you want to run the #8 wire?
#8 wire is limited to carrying 24 amps per the National Electrical Code is it's carrying power for transmission from one point to another. It also exhibits a resistance of .682 ohms per 1000 feet so this resistance relates to voltage drop at the end of a piece of wire. Normally a run of 300 to 500 feet is no problem as long as you are prepared to have a little less current at the end of the wire.
The way the wire is run also has a great deal to do with the distance. If it's placed in a raceway (read conduit) by itself or with other conductors then the wire ampacity must be derated.
As you see, there's a lot to it. The best rule of thumb is that is you need 20 amps at a 1000 feet, use the next size wire or AWG #6.
The maximum distance for 8 AWG copper wire is around 70-80 meters without significant voltage drop, based on typical electrical standards and calculations. If the wire needs to run a longer distance, it may require a larger wire gauge to maintain appropriate voltage levels.
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What size wire is required to run 100 amp service 100 yards?
I would recommend you use AWG # 2 copper or AWG # 1/0 aluminum for that distance and amperage.
What size wire is needed to run a 75 amp 240 volt circuit with 100 ft run?
For a 75 amp circuit with a 100 ft run, you would need a #4 AWG copper wire to ensure minimal voltage drop and to meet electrical code requirements. Using the correct wire size helps maintain the efficiency and safety of the circuit.
What gauge wire for 75 amp?
For a 75 amp electrical circuit, you would typically need a wire gauge of at least 6 AWG (American Wire Gauge) for copper wire or 4 AWG for aluminum wire. This wire gauge is capable of handling the current without overheating or causing a voltage drop. It's important to always consult the National Electric Code (NEC) or a qualified electrician to ensure the correct wire gauge is used for the specific application.
What size wire do you need to run to an air conditioner that has a maximum breaker size of 40 amps and a minimum circuit size of 25.3 amps?
You would need to use a wire size that is rated for at least 40 amps to be safe and to meet the requirements of the air conditioner. A common wire size for this application would be 8 AWG copper wire, which is rated for 40 amps.
What gauge wire to run 40 amp 220 volt circuit 60 feet in residence?
For a 40 amp 220 volt circuit run 60 feet in a residence, it is recommended to use a #8 AWG copper wire for the wiring. This will ensure that you have a safe and efficient electrical connection for your circuit.
What size wire to run air handler which requires a 100 amp breaker?
If the run is less than 100' use 4 AWG copper.
What size wire is required to run 100 amp service 100 yards?
I would recommend you use AWG # 2 copper or AWG # 1/0 aluminum for that distance and amperage.
What size wire is needed to run a 75 amp 240 volt circuit with 100 ft run?
For a 75 amp circuit with a 100 ft run, you would need a #4 AWG copper wire to ensure minimal voltage drop and to meet electrical code requirements. Using the correct wire size helps maintain the efficiency and safety of the circuit.
How does length of run affect the wire gauge to be used?
The longer the run, the bigger and heavier the wire will need to be. The AWG number denotes the diameter of the wire: the smaller the AWG number, the bigger the diameter.
What size wire do you need to run overhead to a 50 amp service five hundred feet away?
For that distance I would run AWG # 3 copper and install a sub-panel.
What size wire for 100 amp panel in detatched garage?
i just left lowes an they told me to run 100 amp to my building i would need wire size 2-2-2-4 alumninum and run it in conduit the lowes around here does not sell copper wire that size
What type of wire do you need to run a 60 amp sub panel with 3 20 amp single breakers in the panel?
I would use 4 AWG copper to be safe.
What size wire for 30 amp breaker 240 volts 100 feet?
That distance you are going to have to install a sub-panel and run AWG # 4 wire and even then you will have a voltage drop of 7.45 volts giving you 232.55 volts at the sub-panel which is acceptable.
How many amps is 3 awg wire good for?
It depends on the application, but for Single-Phase dwelling service and feeders 3 AWG copper is good for 110 amps. That really equates to 100 amps since you can't get a 110 amp circuit breaker.
What size wire for 72 amp motor?
You will need AWG #3 if it is a short run.
What gauge wire do you run between a 30 amp breaker and an outlet?
10 AWG.
What is the amp size of 10 awg wire?
A 10 AWG wire is typically only rated for 30 amps, but conditions such as length of run, whether the wire is to be used in a "plenum", temperature and other factors may affect the type of wire that you must use for a specific application. If you have any questions, contact a qualified electrician or your local building inspector.
