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The NEC table 310.16 does not go that small. If there is a code requirement in your location, you must follow it.

Otherwise, a recommendation I found suggests 11A for short in-chassis wiring, and no more than 1.5A for longer power distribution wiring.

With wire this small, your current will probably be limited more by maximum permissible voltage-drop than a safety rating.

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βˆ™ 12y ago
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βˆ™ 13y ago

The electrical code does not go smaller than a #14 wire which is rated at 15 amps.

....

Reading the ARRL Handbook, 1970 version, page 526, the Copper Wire Table,

indicates that a single conductor of 18AGW wire in open air can handle 16A, but bundled or in conduit 10A should be the maximum.

Remember, safety is YOUR responsibility.

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βˆ™ 14y ago

The electrical code book does not supply amperages for wires below a #14 wire. A # 14 wire is protedted by a 15 amp breaker. Smaller size wires need their own protection depending on what the load amperage is.

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βˆ™ 10y ago

I cannot find 22 gauge wire on any chart in the NEC. That must be a speaker or signal wire for which ampacity is not usually a consideration.

This is speaker wire and it can carry no more than .92 amps.

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βˆ™ 11y ago

20 gauge copper wire can carry 1.46 amps. Insulated copper wire can carry 6.5 amps. This is assuming a short run of 25' or less.

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βˆ™ 14y ago

12 gauge

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Q: What gauge wire do you use for a 20 amp circuit?
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14 AWG.


What size wire in a 40 amp 12 volt circuit?

Use 8 gauge wire.


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What is a wire gauge and what is it's use?

wire gauge is used to determine the size of the wire to be installed based on the amperage draw of whatever is being hooked up on the receiving end. ie 14 gauge is for a 15 amp circuit, 12 gauge is for a 20 amp circuit, 10 gauge 30 amp etc. to get specific amp draw ratings on a particular gauge of wire look at a current National Electric code book or ugly book.


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What size amp circuit breaker should be used for a home entertainment system?

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