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Number of junction boxes per run Ferd Farkel 08-30-2007
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Posted by Ferd Farkel on August 30, 2007, 2:36 pm
Upgrading cellar lighting from pull chain incandescents to plug in
fluorescents. 12/2 Romex. How many junction boxes (and hence
connections) can I safely place along the main run? I assume
twisted and wirenut secured connections will develop resistance
from oxidation.


Posted by Doug Miller on August 30, 2007, 2:56 pm
>Upgrading cellar lighting from pull chain incandescents to plug in
>fluorescents. 12/2 Romex. How many junction boxes (and hence
>connections) can I safely place along the main run?

There's no limit.

> I assume
>twisted and wirenut secured connections will develop resistance
>from oxidation.

This is not a consideration. Copper oxide is an excellent electrical
conductor; aluminum oxide is not, but aluminum wire isn't allowed for branch
circuits any more.

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

It's time to throw all their damned tea in the harbor again.

Posted by RBM on August 30, 2007, 5:55 pm
No limit to amount of junction boxes, just the total wattage of a 20 amp
circuit







> Upgrading cellar lighting from pull chain incandescents to plug in
> fluorescents. 12/2 Romex. How many junction boxes (and hence
> connections) can I safely place along the main run? I assume
> twisted and wirenut secured connections will develop resistance
> from oxidation.
>



Posted by James Culbertson on August 30, 2007, 9:42 pm

> Upgrading cellar lighting from pull chain incandescents to plug in
> fluorescents. 12/2 Romex. How many junction boxes (and hence
> connections) can I safely place along the main run? I assume
> twisted and wirenut secured connections will develop resistance
> from oxidation.
>

My jurisdiction limits the number of "devices" per circuit to 10. Better
check your local laws as your's may vary.
Cheers,
cc



Posted by Steve Barker LT on August 30, 2007, 10:53 pm
but a junction is not a device.

s


>
>> Upgrading cellar lighting from pull chain incandescents to plug in
>> fluorescents. 12/2 Romex. How many junction boxes (and hence
>> connections) can I safely place along the main run? I assume
>> twisted and wirenut secured connections will develop resistance
>> from oxidation.
>>
>
> My jurisdiction limits the number of "devices" per circuit to 10. Better
> check your local laws as your's may vary.
> Cheers,
> cc
>
>



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