GFCI `without a ground wire

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Wireman340 said:
Can a GFCI outlet be utilized with only a 2 wire cable? (hot/neutral)
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Yes, and in fact the NEC specifies exactly this use as an option when replacing legcy receptacles installed without a ground wire (EGC).

One thing to note is that plug-in receptacle testers will NOT be able to trip the GFCI, but the built-in TEST button will confirm that the GFCI is working as designed.

Leave the grounding terminal of the GFCI receptacle unconnected. Do not bridge it to the neutral.
 
I ran into this situation on a older structure,and while it would be compliant to install a gfi receptacle, is there an exception for the metal box to not be bonded to a egc?
 
eds said:
I ran into this situation on a older structure,and while it would be compliant to install a gfi receptacle, is there an exception for the metal box to not be bonded to a egc?
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IMHO as the receptacle yoke is insulated from the box and you use a plastic cover plate and screws you do not have exposed metal that is likely to be energized and you are not modifying the originally compliant wiring. Other opinions?
Although the code specifically recognizes using the GFCI in this situation, I believe it is silent on grounding the box.
 
Thank you

Thank you

GoldDigger said:
Yes, and in fact the NEC specifies exactly this use as an option when replacing legcy receptacles installed without a ground wire (EGC).

One thing to note is that plug-in receptacle testers will NOT be able to trip the GFCI, but the built-in TEST button will confirm that the GFCI is working as designed.

Leave the grounding terminal of the GFCI receptacle unconnected. Do not bridge it to the neutral.
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Thank you for the fast reply
 
These days considering 314.24 and tiny old one gang metal boxes I would first try a combo AFCI/GFCI breaker if that fails a GFCI breaker. Consider also the FPN in 406.4(D) referring to the the list of cord and plug equipment that require an equipment grounding conductor in 250.114 ( Refrigerators, computers, tools etc ). Locations mentioned in 250.110 like within 5 feet of a sink might not be covered by 406.4(D), although the GFCI breaker is better than nothing.
No matter what your improving the situation.
 
tortuga said:
These days considering 314.24 and tiny old one gang metal boxes I would first try a combo AFCI/GFCI breaker if that fails a GFCI breaker. Consider also the FPN in 406.4(D) referring to the the list of cord and plug equipment that require an equipment grounding conductor in 250.114 ( Refrigerators, computers, tools etc ). Locations mentioned in 250.110 like within 5 feet of a sink might not be covered by 406.4(D), although the GFCI breaker is better than nothing.
No matter what your improving the situation.
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It is not ideal but yes it is an improvement and a special allowance by the code to make such improvement in certain situations.
 
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