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View Full Version : What is the minimum wire diameter to support a 60 watt lamp on a normal household sys


rayveysey
Aug 4, 2013, 08:43 AM
I am fitting an external light and want to reduce the amount of cabling and cable cover to a minimum.

ma0641
Aug 4, 2013, 09:02 AM
For fixed wiring, the lowest is 14 AWG. For a light fixture on a wall, you can use 16 AWG but the wire to the box must be at least 14. What exactly are you planning to do.

hkstroud
Aug 4, 2013, 09:49 AM
As Brian said, the minimum size cable for residential is 14 AWG. Fourteen gauge wire is rated for 15 amps and must be protected by a maximum 15 amp breaker.
Just for you information 60 watts at 120 volts is 1/2 amp.