In a farmers shop and am running wire for some lights and I asked my boss if I could go over the joists if I wanted to. I didn't and went elsewhere anyway, but he said you can't staple to the top of joists. I didn't really see anything in the code that prohibits it because the spacing is less than 1.5 metres. Is he right? Other than its ugly as hell?
12-514 Protection on joists and rafters (see Appendix G) Cables shall not be run on or across
(a) the upper faces of ceiling joists or the lower faces of rafters in attic or roof spaces, where the vertical distance
between the joists and the rafters exceeds 1 m;
If that runner board that goes from end to end is 2x4 you could have stapled to the side of that.. Sides alright, on top where you can walk/ crawl is not.
FYI......Every state is a little different but Farmers and agricultural companies have exceptions from following alot of building codes. I'm sure stapling above the joist is fine in a farm building.
oops i didn't realize you are in canada...dont know if there are any exceptions there
I know I need to have a clearance of 3 feet between the roof and the tie beam/joist/whatever and a support of 1.5 metres between them horizontally. If both these conditions are met, which can easily be done in the example in the picture, then it should be fine shouldn't it? And yes it's Canada so CEC rules but I didn't see anything that wouldn't allow it.
The other thing is you actually have to staple them too. Because laying on the truss / rafter is not considered support and since it is not fished, you are required to staple it.
12-510 Running of cable between boxes and fittings (see Appendices B and G)
Δ 1) Where the cable is run between boxes and fittings, it shall be supported by straps, Type 2S or 21S cable ties, or other devices located
a) within 300 mm of every box or fitting; and
b) at intervals of not more than 1.5 m throughout the run.
2) Cables run through holes in joists or studs shall be considered to be supported.
3) Notwithstanding Subrules 1) and 2), where the cable is run as concealed wiring such that it is impracticable to support it, and where metal sheeting or cladding, metal joists, metal top or bottom plates, or metal studs are not used, the cable shall be permitted to be fished and need not be supported between boxes and fittings.
Δ 4) Notwithstanding Subrule 1) a), where cable is run to a switch or a receptacle with an integral enclosure incorporating an integral cable clamp, the cable shall be supported by straps, Type 2S or 21S cable ties, or other devices located within 300 mm of the switch or receptacle wall opening, and there shall be at least a 300 mm loop of unbroken cable or 150 mm of a cable end available on the interior side of the finished wall to permit replacement.
In a farmers shop and am running wire for some lights and I asked my boss if I could go over the joists if I wanted to. I didn't and went elsewhere anyway, but he said you can't staple to the top of joists. I didn't really see anything in the code that prohibits it because the spacing is less than 1.5 metres. Is he right? Other than its ugly as hell?
100% No issues, no runners required unless you have more than a meter of head space above your cables. The intent is to protect the cable if there is potential someone may walk on it when entering attic space, that's all. Wired my brother in laws shop this way, there were no issues with the inspection. He wanted it quick and cheap.
So it's basically ok because it's not considered an attic and no one is ever going to walk up there?
Sent from my SM-G9650 using Tapatalk
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Electrician Talk
2.3M posts
93.3K members
Since 2007
A forum community dedicated to professional electricians, contractors, and apprentices for residential and commercial work. Come join the discussion about trade knowledge, tools, certifications, wiring, builds, scales, reviews, accessories, classifieds, and more!