replacing old 2 conductor receptacles
- Thread starter wesii
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stamcon
Senior Member
- Location
- South San Francisco CA
Re: replacing old 2 conductor receptacles
You can install another 2 prong receptacle, a GFCI receptacle or 3 prong grounded receptacle if you can get a ground wire to that location.
You can install another 2 prong receptacle, a GFCI receptacle or 3 prong grounded receptacle if you can get a ground wire to that location.
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: replacing old 2 conductor receptacles
If it was a 2 wire system you don't need the ground wire.Just label it no equipment ground.Will be plenty safe
Let me clear that up a bit.It must be a gfci receptacle
[ February 16, 2004, 10:05 PM: Message edited by: jimwalker ]
If it was a 2 wire system you don't need the ground wire.Just label it no equipment ground.Will be plenty safe
Let me clear that up a bit.It must be a gfci receptacle
[ February 16, 2004, 10:05 PM: Message edited by: jimwalker ]
Re: replacing old 2 conductor receptacles
The fault clearing path originates from the source, in other words, the grounded and equipment grounding conductors must be common at the source. All due respect, are you an electrician or an apprentice?
Roger
The fault clearing path originates from the source, in other words, the grounded and equipment grounding conductors must be common at the source. All due respect, are you an electrician or an apprentice?
Roger
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: replacing old 2 conductor receptacles
When you say a derived source, do you mean you would run an EGC to a ground rod that doesn't already exist? If that is the case, no.
If the rod already exisits, you may comply with 250.130(C).
Remeber that the ground cannot be used as a fault clearing path.
When you say a derived source, do you mean you would run an EGC to a ground rod that doesn't already exist? If that is the case, no.
If the rod already exisits, you may comply with 250.130(C).
Remeber that the ground cannot be used as a fault clearing path.
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: replacing old 2 conductor receptacles
ok fixed it see above post
[ February 16, 2004, 10:08 PM: Message edited by: jimwalker ]
ok fixed it see above post
[ February 16, 2004, 10:08 PM: Message edited by: jimwalker ]
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: replacing old 2 conductor receptacles
Jim: Maybe you should edit your other reply so that it makes sense
Jim: Maybe you should edit your other reply so that it makes sense
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: replacing old 2 conductor receptacles
Fixed ,your right,someone might think i meant a regular duplex that would not be at all safe
Fixed ,your right,someone might think i meant a regular duplex
that would not be at all safe
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: replacing old 2 conductor receptacles
Theres no need to include the word JUST in your sentance. You are an apprentice. Good for you. Keep it up, nobody knows everything.
Re: replacing old 2 conductor receptacles
roger,
i'm an electrician who hasn't done much work in older residential (ind & comm only). i know code requires to go back to panel (or gfi w/ identification of no ground), but am curious of reason. ie breaker wouldn't trip?
another related question how about adding a isg ground bus to panel. how would you ground the new isg ground bus? should i start a new thread on this question? thanks
tom
roger,
i'm an electrician who hasn't done much work in older residential (ind & comm only). i know code requires to go back to panel (or gfi w/ identification of no ground), but am curious of reason. ie breaker wouldn't trip?
another related question how about adding a isg ground bus to panel. how would you ground the new isg ground bus? should i start a new thread on this question? thanks
tom
tonyi
Senior Member
Re: replacing old 2 conductor receptacles
With the GFCI recpt, the breaker back at the panel would trip on ordinary overload or L/N short. The GFCI device only trips when it detects ~5ma leakage/imbalance between L/N. In theory, if you were standing on something dry and well insulated and stuck a paper clip into the GFCI, there may not be enough to cause a trip.
I don't see a need for a seperate IG bar back at the main panel - that as far back as you'd normally go with the IG's anyway. They are allowed to "pass through" other panels along the way back to the main without connection.
With the GFCI recpt, the breaker back at the panel would trip on ordinary overload or L/N short. The GFCI device only trips when it detects ~5ma leakage/imbalance between L/N. In theory, if you were standing on something dry and well insulated and stuck a paper clip into the GFCI, there may not be enough to cause a trip.
I don't see a need for a seperate IG bar back at the main panel - that as far back as you'd normally go with the IG's anyway. They are allowed to "pass through" other panels along the way back to the main without connection.
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