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Old 04-15-2010, 07:37 PM   #1
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Im sure the wire size drops again at the light fixture it self. In some cases you can drop a 20 amp branch circuit to # 18 with-in so many feet from the fixture.

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Old 04-15-2010, 07:42 PM   #2
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Im sure the wire size drops again at the light fixture it self. In some cases you can drop a 20 amp branch circuit to # 18 with-in so many feet from the fixture.
I wouldn't bet on the 18 but regardless what size wire is allowable, that is only in some very strict situations. It's not a great idea to toss out unique allowances for general work. It tends to confuse the natives.

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Old 04-15-2010, 07:46 PM   #3
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Im sure the wire size drops again at the light fixture it self. In some cases you can drop a 20 amp branch circuit to # 18 with-in so many feet from the fixture.
Show us 'some cases' please.
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Old 04-15-2010, 07:51 PM   #4
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Im sure the wire size drops again at the light fixture it self.
The light fixture wiring is not part of the circuit


Taps....aaaaaaaaaahhh
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Old 04-15-2010, 08:11 PM   #5
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actually manufactured whips can be undersized. I would have to hunt up the sections that allow and control them but this is only for pre-manufactured whips that are listed for the specific use.
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Old 04-15-2010, 08:20 PM   #6
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The light fixture wiring is not part of the circuit


Taps....aaaaaaaaaahhh
From the switch to the fixture? Or just at the Fixture?
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Old 04-15-2010, 08:26 PM   #7
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actually manufactured whips can be undersized. I would have to hunt up the sections that allow and control them but this is only for pre-manufactured whips that are listed for the specific use.
In any case, they are not branch circuit conductors.
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Old 04-15-2010, 08:38 PM   #8
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In any case, they are not branch circuit conductors.
actaully they are. They would go from the last junction box to the fixture. They are branch circuit conductors.
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Old 04-15-2010, 08:43 PM   #9
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In any case, they are not branch circuit conductors.
Not to get off topic but..

Actually there are many places a circuit can drop in wire size to as low as a #18
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Old 04-15-2010, 08:47 PM   #10
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actaully they are. They would go from the last junction box to the fixture. They are branch circuit conductors.
Branch circuit conductors end at the outlet, which is the junction box.
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Old 04-15-2010, 08:48 PM   #11
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From the switch to the fixture? Or just at the Fixture?

You said "AT" the light fixture.....
Are you confused now as to what you meant ?
Or just trying to change what you meant ?
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Old 04-15-2010, 09:05 PM   #12
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You said "AT" the light fixture.....
Are you confused now as to what you meant ?
Or just trying to change what you meant ?
No Im not confused sorry if it seems so. I did say at the fixture. My overall point is that light fixture wiring to my understanding is part of the circuit in some cases. Nothing more..

however, my question remains the same
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Old 04-15-2010, 09:31 PM   #13
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Branch circuit conductors end at the outlet, which is the junction box.
Oh, so the whip I make up has absolutely no limitations? I can run #16 in some FMC on a 20 amp circuit and I'm good to go?

you go argue with your inspector about it.
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Old 04-15-2010, 09:34 PM   #14
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Oh, so the whip I make up has absolutely no limitations? I can run #16 in some FMC on a 20 amp circuit and I'm good to go?

you go argue with your inspector about it.
You sure could for fixture whips, not branch circuit conductors. Read the definition of a branch circuit.

What size conductors do you think come in a manufactured troffer whip?

Last edited by brric; 04-15-2010 at 09:37 PM.
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Old 04-15-2010, 09:37 PM   #15
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You sure could for fixture whips, not branch circuit conductors. Read the definition of a branch circuit.
so, you are saying there are no limitations for things like a motor wiring where I run a whip from a j box to the peckerhead? I mean after all, the junction box is where the branch circuit conductors end, right? and then obviously I can run #24 wire from a junction box to a light fixture? right?


you are really missing something there brric.

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