Using #14 wire for one light on 20A breaker
In , Doug Miller wrote:
In ,marad :
I'm just curious how the code views that?
As a violation.
For example, if I but a common house type ceiling
fixture, they generally have 8 inches or up to several feet (on a
chandlier) of #14 standed wire as part of the fixture. So, if I am
running a 20A circuit I am already using #14 in the circuit.
Fixture wires generally have a much higher temperature rating than supply
wires, which enables them to carry higher current on smaller wires.
Since resistance increases with temperature, actual ampacity does not
increase much with an increase in temperature rating. And ampacity
according to the code does not increase at all.
- Don Klipstein )
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