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Rewiring and junction boxes

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Rewiring and junction boxes jimbob 10-13-2006
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Posted by Chris Lewis on October 16, 2006, 1:44 pm


> > doing this is a #1 no no in some electricians eyes. You've created a
> > series circuit so to speak and if that outlet were to go bad or come
> > loose, then you loose the power downstream also. Pigtailing is the
> > quality way of doing things.

> I understand that a lot of people like pigtailing, but I don't see why a
> properly-installed screw terminal would come loose any more easily than a
> properly-installed pigtail...

It's not just a matter of "like". Pigtailing grounds has been
mandatory for a while, as have neutrals in most cases.

It's not a matter of safety of connection per-se, it's more a matter
of safety during rework. Eg: if you pull a device for replacement
(or abandoning it).

Pigtailing a ground means that even if you pull the device out,
the ground is maintained thru to the rest of the circuit, even if
you don't cut the hot.

Similarly, losing a neutral to downstream outlets can be bad.

Especially with shared neutral circuits.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.

Posted by glassartist on October 14, 2006, 5:40 am


Depending upon your city's building code... here there has to be access to
j boxes. So whereever there is a jbox there is a cover. This, as mentioned
by Chris, may be an issue if you wish to finish off the basement later. I
would go with Tim's less is better. Be sure to check on the position for
drilling your holes through your joists. I am not up on these codes but I
think it is something like, no closer than two inches from the floor
upstairs. So no one later nails through and hits your wire, but the center
of the joist is better. That way if you enclose it later you can nail into
the joist from the bottom and not hit the wire either.

What I would have done differently: In my old house I wish I would have
made each improvement on its own circuit instead of connecting up to the
old run. Older homes didn't use power the way we do. If you might use a
coffee urn in the dining room and some other appliance that may draw a lot
you may want to check out what else is on this old circuit. My coffee urn
when hosting lunches can trip my breaker if the other outlets have a
number of items plugged in, like Christmas lights or whatever. Good luck.
______________

KaCe


Posted by jimbob on October 14, 2006, 8:00 am


You're right, it would be easier just running the extra cable.
Screwing junction boxes into my ironwood floor joists and splicing all
those connections is a real PITA and will cause all sorts of problems
when I refinish the basement. I will have some work to redo, but I
think it will be worth it. I will have wasted time and some wire. Oh
well.

Thanks.

glassartist wrote:
> Depending upon your city's building code... here there has to be access to
> j boxes. So whereever there is a jbox there is a cover. This, as mentioned
> by Chris, may be an issue if you wish to finish off the basement later. I
> would go with Tim's less is better. Be sure to check on the position for
> drilling your holes through your joists. I am not up on these codes but I
> think it is something like, no closer than two inches from the floor
> upstairs. So no one later nails through and hits your wire, but the center
> of the joist is better. That way if you enclose it later you can nail into
> the joist from the bottom and not hit the wire either.
>
> What I would have done differently: In my old house I wish I would have
> made each improvement on its own circuit instead of connecting up to the
> old run. Older homes didn't use power the way we do. If you might use a
> coffee urn in the dining room and some other appliance that may draw a lot
> you may want to check out what else is on this old circuit. My coffee urn
> when hosting lunches can trip my breaker if the other outlets have a
> number of items plugged in, like Christmas lights or whatever. Good luck.
> ______________
>
> KaCe


Posted by John Grabowski on October 14, 2006, 2:20 pm



> You're right, it would be easier just running the extra cable.
> Screwing junction boxes into my ironwood floor joists and splicing all
> those connections is a real PITA and will cause all sorts of problems
> when I refinish the basement. I will have some work to redo, but I
> think it will be worth it. I will have wasted time and some wire. Oh
> well.
>
> Thanks.
>
> glassartist wrote:
> > Depending upon your city's building code... here there has to be access
to
> > j boxes. So whereever there is a jbox there is a cover. This, as
mentioned
> > by Chris, may be an issue if you wish to finish off the basement later.
I
> > would go with Tim's less is better. Be sure to check on the position for
> > drilling your holes through your joists. I am not up on these codes but
I
> > think it is something like, no closer than two inches from the floor
> > upstairs. So no one later nails through and hits your wire, but the
center
> > of the joist is better. That way if you enclose it later you can nail
into
> > the joist from the bottom and not hit the wire either.
> >
> > What I would have done differently: In my old house I wish I would have
> > made each improvement on its own circuit instead of connecting up to the
> > old run. Older homes didn't use power the way we do. If you might use a
> > coffee urn in the dining room and some other appliance that may draw a
lot
> > you may want to check out what else is on this old circuit. My coffee
urn
> > when hosting lunches can trip my breaker if the other outlets have a
> > number of items plugged in, like Christmas lights or whatever. Good
luck.
> > ______________
> >
> > KaCe
>


You may already know this, but receptacles in the dining room are required
to be on a 20 amp circuit. Check article 210.52(B)(1)


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