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wire gauge for current

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Common sizes include 14-, 12-, 10-, 8-, 6-, and 2-gauge wire. The size of the wire dictates how much current can safely pass through the wire. Electrical current is measured in ampacity, and each wire gauge has a maximum safe carrying capacity. For standard non-metallic (NM) cable, these amperage capacities are:

People also ask

  • What guage of wire should I use?

  • thickest gauge wire available. Thicker wire will be able to handle lighter current volumes, but a thin wire will short circuit and damage the equipment if high volume current is passed through it. For a 10-15 amp breaker, a 14-gauge cable should be ideal. A 12-gauge cable is thicker and useful when

  • What is the current rating of 12 AWG wire?

  • Rating. *National Electric Code specifies that the overcurrent protection device (e.g. a fuse or breaker) must not exceed 30A for 10 AWG wire, 20A for 12 AWG wire and 15A for 14 AWG wire.

  • How do I know what gauge wire I Need?

  • To determine the gauge size of a general automotive cable:Make a 1/2 cut in the wire.Remove insulation.Count the individual strands of copper.Use a micrometer to measure one of the strands.Compare the number of strands and the size of the strand to the chart below to determine the gauge.

  • What gauge electrical wire should I use?

  • What Size Electrical Wire Should I Use When Wiring an Electrical Outlet (Receptacle)?The electrical circuit must be properly protected by the right fuse or circuit breakerFor a 15-Amp circuit use #14 copper wire (or #12 copper-clad aluminum wire). …For a 20-Amp circuit use #12 copper wire (or #10 copper-clad aluminum wire) .The fuse or circuit breaker feeding this circuit is rated for 20 amps.More items…

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