connect sh. 40 to rigid requirements.

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nuvi660

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Underground feeder using sch. 40 and attaching to rigid for a mast on a residentail house. Can I do this without and type of bonding! Thank You!
 
OK if you go to the Index, garage, article 250.112, is called out.

Now I know it only lists garages as Article 511 in respect to Commerical Garages in the Code.

I'd use a Bonding bushing...
 
I'm sorry about the the poor description of this job! The home owner wants the feed to come from his main panel and go along the side of his home underground to the end of the house and up the wall through the roof and feed the garage overhead using a mast. I want to use pvc underground the transistion to rigid for the mast installation.
 
Article 250.86 exception # 2 would exclude the requirement for grounding if being used as support for the arial cable.

Exception No. 2: Short sections of metal enclosures or raceways used to provide support or protection of cable assemblies from physical damage shall not be required to be connected to the equipment grounding conductor.

Rick
 
nuvi660 said:
I'm feeding a detached garage overhead from the house.
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nuvi660 said:
I'm sorry about the the poor description of this job! The home owner wants the feed to come from his main panel and go along the side of his home underground to the end of the house and up the wall through the roof and feed the garage overhead using a mast. I want to use pvc underground the transistion to rigid for the mast installation.
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That's ok, I just wanted to know why the mast if underground and to find out before I answered your question. RUWired has answered correctly IMO.

Welcome to the forum!:)
 
I hope the OP reads exactly what is being stated as being correct. :blink:

Welcome to the Forum.

I don't agree with my fellow forum posters, if it's all NM, NMC and NMS (only) in the panel of origin than your good for 25 feet. But this is a main panel(as I read it) and it not filled up with only what the exception is stated are, IMO.
 
cadpoint said:
I hope the OP reads exactly what is being stated as being correct. :blink:

Welcome to the Forum.

I don't agree with my fellow forum posters, if it's all NM, NMC and NMS (only) in the panel of origin than your good for 25 feet. But this is a main panel(as I read it) and it not filled up with only what the exception is stated are, IMO.
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What does any of your post have to do with the rigid pipe grounding.
Rick
 
RUWired said:
Article 250.86 exception # 2 would exclude the requirement for grounding if being used as support for the arial cable.

Exception No. 2: Short sections of metal enclosures or raceways used to provide support or protection of cable assemblies from physical damage shall not be required to be connected to the equipment grounding conductor.

Rick
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I don't see that exception as applying here. The rigid conduit is a part of a complete conduit system, not a short section. My understanding is that the PVC will transition to rigid and the conductors will come out of a weatherhead on the rigid. The circuit EGC will need to be connected to the rigid conduit. That would be done where the conductors come out of the weatherhead.
 
don_resqcapt19 said:
I don't see that exception as applying here. The rigid conduit is a part of a complete conduit system, not a short section. My understanding is that the PVC will transition to rigid and the conductors will come out of a weatherhead on the rigid. The circuit EGC will need to be connected to the rigid conduit. That would be done where the conductors come out of the weatherhead.
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I was looking at the exception on the supporting the cable assembly (arial quadraplex) as meeting the exception.

Rick
 
RUWired said:
I was looking at the exception on the supporting the cable assembly (arial quadraplex) as meeting the exception.

Rick
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From his description he has at least a full 10 feet length and possibly more of RMC making up this mast, you think that fits the 'short lengths' exception. It is not a big deal to ground this in the first place - just put a grounding clamp like what is used for bonding water pipes near the weatherhead and connect the EGC to it.
 
RUWired said:
I was looking at the exception on the supporting the cable assembly (arial quadraplex) as meeting the exception.

Rick
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In my understanding, in this application, the rigid is part of a complete conduit system and it needs to be bonded no matter how short it is.
 
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