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NM cable and crawl space #96675 12/17/05 07:27 PM
Joined: Dec 2002
Posts: 308
E
Edward Offline OP
Member
Does the code require a running board within 7 feet of a crawl space entrance to protect the NM cable?

I thought that section only applied to attic space.

Thanks
Edward


Thanks
Edward
2017 / 2014 NEC & Related Books and Study Guides
Re: NM cable and crawl space #96676 12/17/05 07:51 PM
Joined: Jun 2004
Posts: 220
T
trekkie76 Offline
Member
334-15c doesnt say anything about the enterance to the basement, just that if you run against the joists, it must be in a bored hole, or on a running board.

Re: NM cable and crawl space #96677 12/18/05 10:25 PM
Joined: Mar 2005
Posts: 1,213
S
SteveFehr Offline
Member
What exactly is a "running board"? NEC doesn't define it, and Webster only uses that word in reference to trucks...

Re: NM cable and crawl space #96678 12/19/05 02:45 AM
Joined: Jul 2004
Posts: 9,604
G
gfretwell Online Content
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There are several examples of running boards in the handbook


Greg Fretwell
Re: NM cable and crawl space #96679 12/19/05 10:31 AM
Joined: Dec 2002
Posts: 308
E
Edward Offline OP
Member
I understand if it is a finished basement. As 334-15 (C) requires and as 334-23 to 320-23 in attic spaces.

But my question is about crawl spaces.
What do you think? Is a guard strip or a running board required?

Thanks
Edward


Thanks
Edward
Re: NM cable and crawl space #96680 12/19/05 06:10 PM
Joined: Jun 2004
Posts: 220
T
trekkie76 Offline
Member
I guess you have to describe to me what you call a crawl space then. If it is under a house, I call it a basement even if I have to crawl on hand and knee.

I would still say you need a running board, or bored holes.

Steve, a running board is a board run perpendicular to the joists and wires(smaller that 2#6 or 3 #8) are stapled to it.

Re: NM cable and crawl space #96681 12/19/05 07:06 PM
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Posts: 64
J
jwhite Offline
Member
334.15(C) says unfinished basements. so we have to define a basement.

there is a mention to crawl spaces under requirements for gfci. 210.8 (A) (4)
so the code does recognize a difference.

haveing spent a few days in a crawlspace, i say it is very different from a basement.

Re: NM cable and crawl space #96682 12/19/05 07:51 PM
Joined: Dec 2002
Posts: 308
E
Edward Offline OP
Member
I describe a crawl space where you crawl on your stomach most of the time and rarely on your knees and hands.

A basement is where you can walk around.

Edward
Thanks


Thanks
Edward
Re: NM cable and crawl space #96683 12/19/05 11:01 PM
Joined: Feb 2003
Posts: 288
Y
yaktx Offline
Member
If you have to spend any time worrying about whether or not you are about to lay your head down on an animal carcass, you are in a crawl space. I've never had that feeling in a basement.

Re: NM cable and crawl space #96684 12/20/05 03:54 AM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
"I've never had that feeling in a basement."

I think that soley depends on the cleanliness of the basement in question...

Anyway, reguardless of basement, attic or crawl space, it is accessible, and exposed work, even if the client is not going to go in there... 334.15(A) says follow the surface of framing or running boards... (B)"shall be protected from physical damage where necessary..." So IMO, if it is an accessable basement, attic or crawl space, and you would know of it being accessable, seeing that you are in it, it could be subject to damage, or become a hazard for the next guy down the line. I think 334.15(B)+(C) would apply... If it is accessible it is exposed work...

In an attic type crawl space 320.23 would apply... As 334.23 would direct you there for "accessible attics or roof spaces"


So where is this "Crawl Space", above below or through the building?


Mark Heller
"Well - I oughta....." -Jackie Gleason
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