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Posted by Guy Noir on July 30, 2007, 1:30 pm
Question: I have installed central air and I no longer need to 220v
window AC outlets.
They are wired with romax and the colors of the conductor insulation
are Black, Red, and White.
With the current cost of copper, I hate to replace these runs.
Standard color codes are of course black, white, copper/gnd. If I
rewire this for 110v what colors should I put where? I read somewhere
in the code that you can re-identify a cable with colored tape (green
for instance for the wire used for ground)
So, should I use black-hot white-neutral and red-green taped at each
end for ground? Does this meet NEC code or at least come close??
Thanks in Advance, as always!!
-A
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Posted by Doug Miller on July 30, 2007, 1:39 pm
>Question: I have installed central air and I no longer need to 220v
>window AC outlets.
>
>They are wired with romax and the colors of the conductor insulation
>are Black, Red, and White.
No bare wire??
>With the current cost of copper, I hate to replace these runs.
>
>Standard color codes are of course black, white, copper/gnd. If I
>rewire this for 110v what colors should I put where? I read somewhere
>in the code that you can re-identify a cable with colored tape (green
>for instance for the wire used for ground)
That is not correct. Grounding conductors larger than 6AWG are permitted to be
re-identified in that manner, but not 6AWG and smaller. [2005 NEC, Article
250.119]
>
>So, should I use black-hot white-neutral and red-green taped at each
>end for ground? Does this meet NEC code or at least come close??
No.
--
Regards,
Doug Miller (alphageek at milmac dot com)
It's time to throw all their damned tea in the harbor again.
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Posted by dpb on July 31, 2007, 5:57 pm
Doug Miller wrote:
>> Question: I have installed central air and I no longer need to 220v
>> window AC outlets.
>>
>> They are wired with romax and the colors of the conductor insulation
>> are Black, Red, and White.
>
> No bare wire??
>
>> With the current cost of copper, I hate to replace these runs.
>>
>> Standard color codes are of course black, white, copper/gnd. If I
>> rewire this for 110v what colors should I put where? I read somewhere
>> in the code that you can re-identify a cable with colored tape (green
>> for instance for the wire used for ground)
>
> That is not correct. Grounding conductors larger than 6AWG are permitted to be
> re-identified in that manner, but not 6AWG and smaller. [2005 NEC, Article
> 250.119]
>> So, should I use black-hot white-neutral and red-green taped at each
>> end for ground? Does this meet NEC code or at least come close??
>
> No.
Doesn't meet letter of the code, but I'd not hesitate to do so, myself.
If certainly meets everything but the color and the electrons don't
know the difference. The marking needs to be substantial enough so as
to be relied upon for staying there.
My personal opinion on it is that it is old work, not new and there's no
inspector I've ever seen who wouldn't make reasonable allowance for that...
Others opinions/choices/etc., may differ of course...
--
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Posted by John Grabowski on July 30, 2007, 2:07 pm
> Question: I have installed central air and I no longer need to 220v
> window AC outlets.
>
> They are wired with romax and the colors of the conductor insulation
> are Black, Red, and White.
> With the current cost of copper, I hate to replace these runs.
>
> Standard color codes are of course black, white, copper/gnd. If I
> rewire this for 110v what colors should I put where? I read somewhere
> in the code that you can re-identify a cable with colored tape (green
> for instance for the wire used for ground)
>
> So, should I use black-hot white-neutral and red-green taped at each
> end for ground? Does this meet NEC code or at least come close??
>
Yes, you'll be fine. Make sure the green is continuous and no red is
visible. Isn't there an equipment grounding conductor in the box now?
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Posted by Guy Noir on July 30, 2007, 2:31 pm
>
>
> > Question: I have installed central air and I no longer need to 220v
> > window AC outlets.
>
> > They are wired with romax and the colors of the conductor insulation
> > are Black, Red, and White.
> > With the current cost of copper, I hate to replace these runs.
>
> > Standard color codes are of course black, white, copper/gnd. If I
> > rewire this for 110v what colors should I put where? I read somewhere
> > in the code that you can re-identify a cable with colored tape (green
> > for instance for the wire used for ground)
>
> > So, should I use black-hot white-neutral and red-green taped at each
> > end for ground? Does this meet NEC code or at least come close??
>
> Yes, you'll be fine. Make sure the green is continuous and no red is
> visible. Isn't there an equipment grounding conductor in the box now?
Unfortunately, no there is no bare or green conductor.
-A
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