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The voltage that 18 gauge wire can carry depends on several factors, including the length of the wire, the ambient temperature, and the type of insulation used. Generally, 18 gauge wire is rated for a maximum current of about 10 amps for power transmission. Since voltage itself does not directly affect the wire's current-carrying capacity, the wire can be used in circuits with voltages typically up to 120 volts or more, as long as the current remains within the safe limits. Always consult the National Electrical Code (NEC) or a qualified electrician for specific applications.

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1w ago

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