Romex In Unfinished (studs Exposed) Basement - Electrical - DIY Chatroom Home Improvement Forum

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Old 08-12-2014, 01:02 PM   #1
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Romex in unfinished (studs exposed) basement

I am running romex in two basement rooms. Both have exposed studs. In the one, I am running romex through the joists and across the bottom of the metal cold air return to get to the junction box.

Question#1: Can I run romex across the bottom of that metal cold air return without conduit? if not, what is the best way to transition for that short run?

Question #2: I know i can run romex through the joists in an unfinished basement area... do I have to run conduit from the joist down to the switches or can I just staple the romex to the stud? Not sure what the code is for romex in an unfinished area.



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Old 08-12-2014, 02:08 PM   #2
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And no one here will ether since there was no location in your profile.
Around here no conduit is required unless it's exposed, other places it all needs to be run in conduit


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Old 08-12-2014, 03:57 PM   #3
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In a nut shell, it will have to be in conduit if exposed to physical damage.
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Old 08-12-2014, 04:06 PM   #4
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There are areas where the wiring method must be conduit ... Chicago area for an example. The National Electrical code says this .... note that there is no mention requiring protection on a studded wall.. only if you run the romex on the surface of the basement wall. So all this means there is nothing prohibiting you from stapling the romex parallel to the stud as long as you make sure it is 1 1/4" from the face of the stud.

You are also allowed to run romex perpendicular through a cold air return when the cavity between joists is used for that purpose.

C) In Unfinished Basements and Crawl Spaces.

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
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 (
14 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.
" One nice thing about the NEC articles ... you have lots of choices"

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Old 08-12-2014, 05:10 PM   #5
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Thanks for the responses. I am in ohio....sorry I didnt divulge that.
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