Pendant Conductors for Incandescent Filament Lamps

The requirements for wiring of luminaires can be found in Part VI of Art. 410.

June 13, 2014

Fixture wires used as pendant conductors for incandescent luminaires with intermediate or candelabra-base lampholders shall not be smaller than _____ AWG.

a) 22
b) 18
c) 16
d) 14

See answer and applicable Code reference

The correct answer is: b) 18

The requirements for wiring of luminaires can be found in Part VI of Art. 410. As noted in 410.54(B), "Unless part of listed decorative lighting assemblies, pendant conductors shall not be smaller than 14 AWG for mogul-base or medium-base screw shell lampholders or smaller than 18 AWG for intermediate or candelabra-base lampholders."