Sealtight grounding

[Oakey]

On new A/C installs I will run a ground wire in the sealtight.
My question is I have an existing central A/C at 50 amp and the 1/2" sealtight is being used as the ground. It has all the proper metal connectors but is this existing situation code compliant? :-?

 

[RUWIREDRITE]

sealtight

sealtight

Is the run under 6 feet?, does the sealtight have a copper internal ground in it? It complies as long as either of the two above are present. IMO I would rather see a insulating grounding conductor in that raceway due to sealitght connector failure.

 

[rcarroll]

If I'm reading 250.118 (6) b right, the conductors have to be protected at 20 amps or less.

 

[rcarroll]

Disregard my previous post. I didn't read far enough. If the sealtite is not more than 6' you're good to go.

 

[infinity]

Disregard my previous post. I didn't read far enough. If the sealtite is not more than 6' you're good to go.

I agree with your first answer not the second. 1/2" is only good up to 20 amps.

 

[Oakey]

It is less than 6ft, but it is a large central A/C condenser. Def over 20 amps most likely 40-50. I am doing a panel swap at the house where this situation is, if it is a violation is the E/C responsible for correcting it?

 

[Bea]

It is less than 6ft, but it is a large central A/C condenser. Def over 20 amps most likely 40-50.

This would require an Equipment ground other than the sealtight


[QUTOE=Oakey]I am doing a panel swap at the house where this situation is, if it is a violation is the E/C responsible for correcting it?[/QUOTE]


Depends on your license if you are licensed to do the work then IMO if you are change out the unit it is you responancablity to make the installation to code.

 

[bstoin]

It is less than 6ft, but it is a large central A/C condenser. Def over 20 amps most likely 40-50. I am doing a panel swap at the house where this situation is, if it is a violation is the E/C responsible for correcting it?

Yes, it is a violation. I would confirm what infinity stated (no more than 20 amps for 1/2").
As far as the EC being responsible, many inspectors have made me correct such violations stating that it must be "brought up to code."
It seems to me, fixing this would be a 10 minute job..why not make the correction?

 

[rcarroll]

I agree with your first answer not the second. 1/2" is only good up to 20 amps.

Thanks, that means I'm only half stupid.

 

[bstoin]

Thanks, that means I'm only half stupid.

I wouldn't say "half stupid" but rather "half smart":grin:

 

[LarryFine]

. . . responancablity . . .

Now that's a word!

 

[Oakey]

LOL ...you guys. Thanks for the clarification, I will fix it I just wanted to see how ppl felt about finding violations like that and what they would do. I know the H/O will not pay me for it but sleep is good. Seems I keep following the same A/C hack around my town.

 

[LawnGuyLandSparky]

It is less than 6ft, but it is a large central A/C condenser. Def over 20 amps most likely 40-50. I am doing a panel swap at the house where this situation is, if it is a violation is the E/C responsible for correcting it?

How is the panel swap related to the A/C compressor? Are E.C's liable for fixing existing vioations unrelated to the work they're contracted to do?

 

[Oakey]

How is the panel swap related to the A/C compressor? Are E.C's liable for fixing existing vioations unrelated to the work they're contracted to do?

That is one of my questions. I fixed this problem because it was easy to do, but if it wasn't...

 

[jimioy]

seal tight as equipment grounding conductor

seal tight as equipment grounding conductor

most seal tight fittings are listed as suitable for grounding purposes, you need to check them. The problem is none of the seal tight is rated as suitable for grounding purposes. You have to use an EGC in the seal tight if over a 6 foot run or if the run is under 6 feet, you can have the EGC on the outside or inside of the seal tight.

 

[infinity]

most seal tight fittings are listed as suitable for grounding purposes, you need to check them. The problem is none of the seal tight is rated as suitable for grounding purposes. You have to use an EGC in the seal tight if over a 6 foot run or if the run is under 6 feet, you can have the EGC on the outside or inside of the seal tight.

Where does it say that LFMC must be listed for grounding?