What conduit to use in pole barn

Status
Not open for further replies.
I'm thinking of using MC for the 4/0 feeder to a sub panel. 230.50 (B) (2) Exception "MC shall be permitted within (10 ft) of grade level where not exposed to physical damage... Does this mean, above 10' I can't run MC ? And does it mean MC is not acceptable as protection and conduit must be used ? Thank you
 
Stevenfyeager said:
I'm thinking of using MC for the 4/0 feeder to a sub panel. 230.50 (B) (2) Exception "MC shall be permitted within (10 ft) of grade level where not exposed to physical damage... Does this mean, above 10' I can't run MC ? And does it mean MC is not acceptable as protection and conduit must be used ? Thank you
Click to expand...
Above 10' it would not be considered exposed to physical damage.
Sleeve it, build structure around it...
 
Years ago I thought that MC was starting to be allowed to be used in place of conduit everywhere indoors, which is what I’ve been doing. But this thread has alerted me to the 230.50 B 2 exception, which allows it below 10’ only IF not exposed to physical damage. Talking with the E Inspector, he is allowing me to use it everywhere in this barn as long as I try and keep it off the face of framing.
 
Stevenfyeager said:
Years ago I thought that MC was starting to be allowed to be used in place of conduit everywhere indoors, which is what I’ve been doing. But this thread has alerted me to the 230.50 B 2 exception, which allows it below 10’ only IF not exposed to physical damage. Talking with the E Inspector, he is allowing me to use it everywhere in this barn as long as I try and keep it off the face of framing.
Click to expand...
Okay, no one else has said it so here it goes: you and the inspector do know that 230.50 is for services right? Specifically, 230.50 is under part IV of article 230 which is for service entrance conductors. That does not apply to a feeder.
 
electrofelon said:
Okay, no one else has said it so here it goes: you and the inspector do know that 230.50 is for services right? Specifically, 230.50 is under part IV of article 230 which is for service entrance conductors. That does not apply to a feeder.
Click to expand...
Thanks, the inspector and I are reading the phrase 'other than service entrance cables' exception.
 
Stevenfyeager said:
Thanks, the inspector and I are reading the phrase 'other than service entrance cables' exception.
Click to expand...
Sorry, That is not correct. Tell the inspector that some random guy on mike holt forum says he needs a new job since he cant understand basics of the code book structure. You are under article 230, "services" and under part IV of that article which is "service entrance conductors". The "Other than service entrance cables" part with the exception you are talking about is under (B) which is "all other service entrance conductors". They would not be discussing feeders in that part. (B)(2) is talking about cables USED FOR SERVICE ENTRANCE CONDUCTORS that are not type SE.
 
electrofelon said:
Sorry, That is not correct. Tell the inspector that some random guy on mike holt forum says he needs a new job since he cant understand basics of the code book structure. You are under article 230, "services" and under part IV of that article which is "service entrance conductors". The "Other than service entrance cables" part with the exception you are talking about is under (B) which is "all other service entrance conductors". They would not be discussing feeders in that part. (B)(2) is talking about cables USED FOR SERVICE ENTRANCE CONDUCTORS that are not type SE.
Click to expand...
I see that, thank you !
 
Stevenfyeager said:
I'm thinking of using MC for the 4/0 feeder to a sub panel. 230.50 (B) (2) Exception "MC shall be permitted within (10 ft) of grade level where not exposed to physical damage... Does this mean, above 10' I can't run MC ? And does it mean MC is not acceptable as protection and conduit must be used ? Thank you
Click to expand...
I've never seen MC in 4/0. I'll bet it's heavy.
 
Status
Not open for further replies.
Top