What are the typical wire sizes used for residential lighting circuits?

In residential lighting circuits, a common practice is to use wire sizes like 12 AWG (American Wire Gauge) and 14 AWG. These wire sizes are appropriate for the typical current loads that lighting circuits carry. A 12 AWG wire can safely handle up to 20 amps, making it suitable for general lighting and receptacles, while 14 AWG wire is rated for up to 15 amps, which is adequate for most standard lighting fixtures.

Using the correct wire size is crucial for ensuring safety and preventing overheating, as smaller wires can lead to excessive resistance and potential fire hazards. The choices listed mirror common practices, but the pairing of 12 AWG or 14 AWG represents the most widely accepted standards for residential lighting, particularly in ensuring the circuits are protected by appropriate breakers or fuses, maintaining a safe electrical system.

In contrast, other selections presented either use wire sizes that are too large for typical household lighting needs or include sizes with inadequate current ratings for safe operation in those applications.