Morning fellows. I know that it is permissible to replace a non-grounding type receptacle with a GFCI on a two wire circuit. My question is if you have a two wire circuit that has only lighting and switches can you use a GFCI breaker in the panel to make up for the lack of an equipment ground?
GFCI and lighting circuit
- Thread starter jhrper
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Gfci and lighting circuit
Gfci and lighting circuit
That was brought up in a code class I attended. When changing a service entrance from fuses to circuit breakers all ungrounded circits should have gfci protection.
The reason is that a fuse blows faster than a breaker trips, by replacing the fuse to a breaker you are adding to an existing hazard.
any comments?
Gfci and lighting circuit
That was brought up in a code class I attended. When changing a service entrance from fuses to circuit breakers all ungrounded circits should have gfci protection.
The reason is that a fuse blows faster than a breaker trips, by replacing the fuse to a breaker you are adding to an existing hazard.
any comments?
electricguy61
Senior Member
I would not recommend installing GFI breakers. You're thinking is correct, that they most likely will not work. In my area (Northern CA), the inspectors do not require Arc Fault or GFI breakers on panel upgrades because the circuits were never designed for this type of protection.
GFCI and lighting circuits.
GFCI and lighting circuits.
ACRWC10 A simple test with a voltage tester will identify the polarity of knob and tube wiring. It must be done any time knob and tube is disconnected and reconnected for any reason,reversing the polarity could result in changing the voltage to some outlets from 110 to 240.
jhrper Yes GFCI protection can be used to protect a lighting circuit. A ground fault to a metal light should trip the GFCI breaker. IMO.
Kind of busy at the moment will look NEC section about not adding to existing violations laterif antone still want's it.
GFCI and lighting circuits.
ACRWC10 A simple test with a voltage tester will identify the polarity of knob and tube wiring. It must be done any time knob and tube is disconnected and reconnected for any reason,reversing the polarity could result in changing the voltage to some outlets from 110 to 240.
jhrper Yes GFCI protection can be used to protect a lighting circuit. A ground fault to a metal light should trip the GFCI breaker. IMO.
Kind of busy at the moment will look NEC section about not adding to existing violations laterif antone still want's it.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
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- Electrical Contractor
Yes, as will the average non-contact tester. My fav is a wiggy and an extension cord plugged into a known-properly-wired receptacle.romeo said:
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