What type of wire is commonly used for residential lighting circuits?

In residential lighting circuits, 14 gauge copper wire is commonly utilized. This choice is based on the wire's ability to handle the electrical load typically associated with lighting while also conforming to safety standards set by the National Electrical Code (NEC).

Copper wire is preferred in this application due to its excellent conductivity, which allows it to carry electrical current with minimal resistance. The 14 gauge size is specifically suitable for general lighting circuits, capable of handling a load of up to 15 amps, which is often sufficient for the majority of household lighting demands.

Using 14 gauge copper wire helps ensure that the circuit can operate safely without risk of overheating or exceeding the load capacity, which is crucial in preventing fire hazards. This wire type strikes a balance between flexibility and durability, making it easy for electricians to work with during installation while also providing the necessary performance for everyday household lighting needs.