Running Boards In Unfinished Basements

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Ravenvalor

Ravenvalor

Senior Member
Location
Piedmont region of NC
Sorry in advance for bringing up this topic again.
I have looked at 334.15(C) and read all of the threads on this forum pertaining to running boards as they are applied to nm cables in unfinished basements. It seems like stapling a cable to the bottom of a board would make it more susceptible to being damaged as opposed to stapling it to the bottom of a floor joist. Until today I always thought that the cable would have better protection next to a running board instead of on a running board. Are running boards mentioned anywhere else in the code? I usually try to run nm cable over hvac ducting when possible. My next code book will be in electronic format. :)
 
Cable can be on or next to running boards. If I go to a job without running boards for whatever reason I will staple the cable to the joist so I can complete the wiring, then pick p running boards and nail or screw them on when I go back. Usually only do one side if against a wall
 
Eddie702 said:
Cable can be on or next to running boards. If I go to a job without running boards for whatever reason I will staple the cable to the joist so I can complete the wiring, then pick p running boards and nail or screw them on when I go back. Usually only do one side if against a wall
Click to expand...
I don't see the words "next to" anywhere in this

(C) In Unfinished Basements and Crawl Spaces. Where cable
is run at angles with joists in unfinished basements and crawl
spaces, it shall be permissible to secure cables not smaller than
two 6 AWG or three 8 AWG conductors directly to the lower
edges of the joists. Smaller cables shall be run either through
bored holes in joists or on running boards. Nonmetallic sheathed
cable installed on the wall of an unfinished basement
shall be permitted to be installed in a listed conduit or tubing
or shall be protected in accordance with 300.4. Conduit or
tubing shall be provided with a suitable insulating bushing or
adapter at the point the cable enters the raceway. The sheath of
the nonmetallic-sheathed cable shall extend through the
conduit or tubing and into the outlet or device box not less
than 6 mm (1∕4 in.). The cable shall be secured within 300 mm
(12 in.) of the point where the cable enters the conduit or
tubing. Metal conduit, tubing, and metal outlet boxes shall be
connected to an equipment grounding conductor complying
with the provisions of 250.86 and 250.148.
 
Little Bill said:
I don't see the words "next to" anywhere in this

(C) In Unfinished Basements and Crawl Spaces. Where cable
is run at angles with joists in unfinished basements and crawl
spaces, it shall be permissible to secure cables not smaller than
two 6 AWG or three 8 AWG conductors directly to the lower
edges of the joists. Smaller cables shall be run either through
bored holes in joists or on running boards. Nonmetallic sheathed
cable installed on the wall of an unfinished basement
shall be permitted to be installed in a listed conduit or tubing
or shall be protected in accordance with 300.4. Conduit or
tubing shall be provided with a suitable insulating bushing or
adapter at the point the cable enters the raceway. The sheath of
the nonmetallic-sheathed cable shall extend through the
conduit or tubing and into the outlet or device box not less
than 6 mm (1∕4 in.). The cable shall be secured within 300 mm
(12 in.) of the point where the cable enters the conduit or
tubing. Metal conduit, tubing, and metal outlet boxes shall be
connected to an equipment grounding conductor complying
with the provisions of 250.86 and 250.148.
Click to expand...

I would say as long as the cable is fastened to the board, it’s “on”.
On the side should be as good as on the bottom?
 
Eddie702 said:
Cable can be on or next to running boards. If I go to a job without running boards for whatever reason I will staple the cable to the joist so I can complete the wiring, then pick p running boards and nail or screw them on when I go back. Usually only do one side if against a wall
Click to expand...
What is the minimum size running board that you use when you staple cable to the side of it? It seems like in the spirit of the code I would choose at least a 2 x 4. A true 2" would be even better.
 
480sparky said:
It's easy to hang up laundry on a hanger on plain NM.
Click to expand...
I never understood why we can run the NM through holes in the joists...NM installed that way works even better to hang things on as it is supported every 16". If we put it on the bottom, we only support every 54"
 
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