three prong outlets

[Treg the electrician]

If you have old ungrounded wiring and two prong outlets, and you protect the circuit with a gfci breaker , is it permissible to install three prong outlets? I've been told different things about this subject

 

[tortuga]

See 406.4(D) for non-grounding receptacle replacements, my interpretation is that applies except for equipment listed in 250.114(3). See also 250.130(C)

 

[Treg the electrician]

See 406.4(D) for non-grounding receptacle replacements, my interpretation is that applies except for equipment listed in 250.114(3). See also 250.130(C)

it looks to me like its ok to do this as long as i put a gfci protected sticker on the new outlet does that sound right to you?

 

[LarryFine]

Generally, yes. Remember to not connect any EGCs in any added modern cable to anything.

 

[jap]

Generally, yes. Remember to not connect any EGCs in any added modern cable to anything.

Even if it doesn't serve a purpose, why would that be an issue?

JAP>

 

[Seven-Delta-FortyOne]

Yes you can, but you need to add the ”GFCI protected circuit” AND the “no equipment ground” label.

Even if it doesn't serve a purpose, why would that be an issue?

JAP>

My understanding is that if someone opens up the receptacle box and sees the EGC connected, it would be a natural assumption that the circuit is grounded, when in fact it’s not.

 

[LarryFine]

Even if it doesn't serve a purpose, why would that be an issue?

Because you don't want an internal fault in one load to energize another load via the interconnected EGC.

 

[jap]

Because you don't want an internal fault in one load to energize another load via the interconnected EGC.

In that case hasn't the GFI protection you've just installed failed you?

JAP>

 

[don_resqcapt19]

In that case hasn't the GFI protection you've just installed failed you?

JAP>

There may not be an actual ground fault until you touch the metal parts of the down stream equipment.

 

[LarryFine]

In that case hasn't the GFI protection you've just installed failed you?

The idea is to not risk creating a greater hazard from new wiring.

The GFCI device will only trip after a person has received a shock.

It will not trip just because a second load has become energized.

 

[Besoeker3]

I'm glad we make ours simple................

 

[jap]

I looked up the rule and is does guide you to not terminate the EGC in this instance.

That's smart.

I wasn't aware of it.

JAP>

 

[LarryFine]

I get 'em right once in a while.

 

[jap]

I get 'em right once in a while.

I'd say more than once in a while Larry,

JAP>

 

[LarryFine]

I'd say more than once in a while Larry,