box wire fill and smoke detector wires
 

Greetings,

I have been told that the ***plug wires*** for a 120V wired smoke
detector do not count towards the wire fill of the box. I just wanted
to confirm that this is correct or incorrect.

Thanks,
William

When did they start putting spark plugs in smoke detectors?

" wrote:
I have been told that the ***plug wires*** for a 120V wired smoke
detector do not count towards the wire fill of the box. I just wanted
to confirm that this is correct or incorrect.

Pigtails usually aren't counted towards box fill. Never know with some
inspectors, 'tho.

Matt,

120V smoke detectors normally have a male plug. The female plug has 3
leads which extend into the octagon box and are attached with wire
nuts.

Hope this helps,
William

In article , wrote:
" wrote:
I have been told that the ***plug wires*** for a 120V wired smoke
detector do not count towards the wire fill of the box. I just wanted
to confirm that this is correct or incorrect.

Pigtails usually aren't counted towards box fill. Never know with some
inspectors, 'tho.

Per the NEC, pigtails are *never* counted: "Conductors, no part of which
leaves the box, _shall_not_ be counted." [emphasis added]

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?

In article .com, " wrote:
Greetings,

I have been told that the ***plug wires*** for a 120V wired smoke
detector do not count towards the wire fill of the box. I just wanted
to confirm that this is correct or incorrect.

That's correct.

"Where ... not over four fixture wires smaller than No. 14... enter a box from
a fixture canopy and terminate within that box, it shall be permitted to omit
these conductors from the calculations." [NEC, Art. 370-16 (a) 1 exception]

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?

5 STAR RESPONSE

Thank you very much Doug Miller. That was exactly what I was looking
for!