Ac/mc???

[Pav3rTech]

OK this may be lengthy....
I was involved in industrial electricity at a company here in MO. for 13 yrs. This company had a Electrical standard that required all conduit other than ceiling lighting(emt) be rigid runs with less than 5 ft. armor filled flextight on any given termination. To me this just became the way of life. I've never had formal NEC training so I can barely get through the book without a headache.
We NEVER used either AC or MC for anything.

Now I have signed on with company X and they have an entire building wired with either mc or ac (I haven't investigated which). Everything from lighting to motor runs to control are all what in the past for me was unacceptable. Is there a code violation in the works or was my previous exposure just a durabillity thing.:-?

 

[mikeames]

OK this may be lengthy....
previous exposure just a durabillity thing.:-?

Industrial settings sometimes have reason to do something that would not normally be done in other environments. AC/MC is perfectly acceptable in many applications.

 

[augie47]

welcome to the forum!
There are guys here that install both of those by the mile.
Very common in commercial installations.

 

[Pierre C Belarge]

Pav
When you do investigate, look to see if there is a green insulated conductor. If there is a green conductor, most likely the wiring method is MC cable.
Welcome to the forum. And welcome to the outside world.

 

[walkerj]

Whatever you do don't look at the wiring in your house:grin:

I have personally never ran rigid except for stub-ups through a slab or a service riser.

Put some cable in my hand...

 

[al hildenbrand]

:smile:

Welcome to the Forum, Pav3r.

Just focus on reading Art. 330 and Art. 300 to begin with. Expand from there. Keep what you read in mind as you look at what's installed already at the new place. The patterns will emerge.

 

[Pav3rTech]

Thanks to each and every one of you for your time. I appreciate the insight and hope that someday I might be able to return the favor.