14/2 and 18/2

Status
Not open for further replies.
Jraef said:
It is if there is a bedroom above it.
Click to expand...
Perhaps my fire rating comment was a little snarky. My point is that the IRC requirements for garage fire issues are not rated assemblies as in commercial. The IRC just has some basic requirements to slow down a garage fire. One example is as you mention, if there is a habitable room above you need 5/8 sheet rock on the ceiling but it says nothing about outlet penetrations and the like as you would have in a rated assembly. Other wise in most cases the garage can use 1/2 sheet rock.
This is similar to IRC draft blocking in homes. There is no rating to it, just guidance on what is required. Same with draft blocking cable penetrations, you can just use regular foam.
 
865resi said:
I have always done this. Always passed the electrical inspection. i see many other new houses like this. The city building inspector does not think it is allowed. Thanks
Click to expand...
It is allowed but you have to follow the rules about such things.

take a look at 725.126. read carefully what it actually says and not what someone told you it says, or what you think it says.
 
petersonra said:
It is allowed but you have to follow the rules about such things.

take a look at 725.126. read carefully what it actually says and not what someone told you it says, or what you think it says.
Click to expand...
725.126 is not in my 2011 or 2017. I assume you meant 725.136 (which is in both). I have a single gang box, so I cannot use a barrier 725.136(B). But maybe you are referring to 725.136(D) 2 b. I do not know if that refers to the 18/2 from pushbutton to opener.
Like I say every EI has passed this, at least a dozen, over the last 20 years. Some very strict, some not. Thanks.
 
letgomywago said:
I just stub it down a couple inches away. I don't want to have opener wire anywhere need the cover. Sometimes I go to the opposite side of the truss. Drywall hangers just poke out and some firecaulk it.
Click to expand...
I agree. I've always stubbed a few inches from the box. The LV 18-2 does not need to be in a box per the NEC.
 
865resi said:
725.126 is not in my 2011 or 2017. I assume you meant 725.136 (which is in both). I have a single gang box, so I cannot use a barrier 725.136(B). But maybe you are referring to 725.136(D) 2 b. I do not know if that refers to the 18/2 from pushbutton to opener.
Like I say every EI has passed this, at least a dozen, over the last 20 years. Some very strict, some not. Thanks.
Click to expand...
Sorry. You are right. I fat fingered it. Should be 725.136.

I think an outlet box box could use smurf tubing for instance, as a barrier between the power wiring and the class 2 wiring.

However, as a practical matter, it would probably be easier not to do it that way.
 
Status
Not open for further replies.
Top