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s2 staples

Posted: Tue Feb 24, 2015 7:13 am
by jackson3
might be a dumb question, but I just wanted to double check- by code can I use s2 staples to staple a single 14-2 cable? or should they be used for stapling 2 cables? seems local stores just stock s2.

Re: s2 staples

Posted: Tue Feb 24, 2015 7:46 am
by Shannon
That will be fine.

Re: s2 staples

Posted: Wed Feb 25, 2015 1:28 am
by Aaron
Really? The S2s are for the double-stack of 14-2 or 12-2, right? It's okay to use them for just one? Won't it flop around under the staple, or is that ok?

I wish we had those nice staples here... look at the crap steel staples we have here in the US:


You can pound these until kingdom come and totally ruin your cable. For this reason, it's much safer to use the plastic ones down here.

CSA actually specifies and approves staples. NEC or UL does not, which is ridiculous. Instead we require AFCI breakers to compensate for poor materials and careless electrical workmanship. Here's the CSA code:
Rule 12-508 Bending and stapling of cable Approved staples with stops are required to be used to limit the depth of penetration (see Figure 12-16). Approved staples are tested using a single non-metallic sheathed cable. Unapproved staples such as fence or poultry netting staples are not permitted.Image

Re: s2 staples

Posted: Wed Feb 25, 2015 7:32 am
by Shannon
A single 14/2 wire will have a little more movement but if that is all he can find I would use that before I would use a staple without the depth stops. Maybe just space them a little closer together if it seems the wire moves to much?

Re: s2 staples

Posted: Wed Feb 25, 2015 12:03 pm
by Aaron
Yeah I might use the plastic ones in his case, then, so long as it's indoors. Because those plastic ones DO break outside--I can tell you that from personal experience. The cold makes them brittle.