unfinished basement

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Old 11-10-09, 03:18 PM
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unfinished basement



In a never-to-be-finished basement am I allowed
to run cable on the side surface of beams and joists
jumping from one to the other?.

Thank you
 
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Old 11-10-09, 03:56 PM
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"Never to be finished" by your definitions, by code worthiness, or what? If it can be refinished to any degree, even by a future owner, it would help your selling points if things were above the top plate line. I know it isn't always possible, and I have remodeled basements with wires looking like spaghetti. The cables must be "protected". Nailing to the side of beams is fine; jumping from one another is fine; I would recommend drilling holes in the middle within the 1/3rd mark of the top and bottom to run wires from one through the other.
 
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Old 11-10-09, 03:57 PM
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Along the side of the joists is fine, as long as you are 1 1/4" away from the edge. Jumping from joist to joist as you did is probably not. Check with your inspector.

The NEC says 334.15(c) that in "unfinished basements and crawlspaces...cable should be run through bored holes or on running boards." It then adds that "NM cable installed on the wall of an unfinished basement shall be permitted to be install in a listed conduit or tubing..."

Is there a sill under those joists that you could attach them to?

Honestly, if you ever sell the house it looks like someone took a shortcut. It wouldn't make me feel comfortable with the rest of the wiring. Drill some holes.
 
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Old 11-10-09, 03:59 PM
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Yes, you may run along the sides of the joists. However, the cables in your picture that are below the joists are not allowed. Cables run perpendicular to the joists should be run through holes drilled in the joists.
 
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Old 11-10-09, 09:49 PM
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I've never seen a running board applied so
tell me if i'm correct...
A dimensional piece of lumber attached to the underside of
joists..
then run the cable on the underside of board and drill up through the board when transitioning
90 degrees onto a joist..acceptable?

I want to stay away from drilling because the previous owners,
over the last 90 years, have drilled more than enough holes in the woodwork.
 
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Old 11-11-09, 06:15 AM
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Run the wires on the side of the running board. If you have a lot of cables I like to use two, spaced about 3" apart and form a raceway for the wires. That way you can run what you want and still protect them. Placing small "slats" across the raceway will allow for easier cable pulling. Simpler than conduit and you don't have a "fill" calculation problem.
 
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