How do you run NMB between insulation and concrete walls?
#1
03-14-16, 12:39 PM
How do you run NMB between insulation and concrete walls?
How do you run NMB between insulation and concrete walls in unfinished areas of basement?
I have some kind of reflective insulation on the concrete walls.
This is old work.
I have some kind of reflective insulation on the concrete walls.
This is old work.
#2
03-14-16, 01:38 PM
Group Moderator
The cable needs to be fastened to something...... even firring. It can't just lay on the wall.
You said this is old work. What is the work..... receptacles on the wall ?
You said this is old work. What is the work..... receptacles on the wall ?
#4
03-14-16, 01:59 PM
No, the code requires that the cable is fastened to a structural framing member an interval no more than 4.5' between staples or bore holes. It also must be fastened within 8 inches of entering the box, and the box must also be securely fastened.
#7
03-14-16, 02:09 PM
No, I'm not finishing this mechanical room.
The rest of the basement is already finished.
And I don't want to bore a series of holes through the joists.
The rest of the basement is already finished.
And I don't want to bore a series of holes through the joists.
Last edited by Khaleesi; 03-14-16 at 02:25 PM.
#9
03-14-16, 07:26 PM
You can use cable strap such as this.
#12/2 - #14/2 Service Entrance (SE) 1-Hole Cable Straps (10-Pack)-26210 - The Home Depot
You will have to drill into the concrete, drive anchor and screw or use tapcon, or any other means to screw to the concrete.
Use metal junction box (handy box) for the outlet.
If you want, you can also nail 2x4 with ramset concrete nail, and secure wire to it.
Glueing alone will not cut it.
#12/2 - #14/2 Service Entrance (SE) 1-Hole Cable Straps (10-Pack)-26210 - The Home Depot
You will have to drill into the concrete, drive anchor and screw or use tapcon, or any other means to screw to the concrete.
Use metal junction box (handy box) for the outlet.
If you want, you can also nail 2x4 with ramset concrete nail, and secure wire to it.
Glueing alone will not cut it.
#10
03-14-16, 07:35 PM
Group Moderator
Any cable run that wall should be protected by conduit similar to the dryer receptacle you already have.
#12
03-14-16, 07:55 PM
I'm running the wire to the outside.
Last edited by lambition; 03-14-16 at 08:19 PM.
