Nm cable fastening

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nizak

Senior Member
I ran into a situation today useing plastic NM cable staples. Manufacturer "A's" carton states that this particular staple can hold( 2) 14-2 or 12-2 cables. Manufacturer "B's" carton states that their product is for securing 14-2 or 12-2 cables but does not list a quantity. Staples are identical as far as physical shape and size.Is it fair to say that the latter of the two products could "legally" secure (3) cables? This may sound petty, but why use three .30 cable stackers if three .02 staples are code compliant. Thoughts?
 

jusme123

Senior Member
Location
NY
Occupation
JW
I ran into a situation today useing plastic NM cable staples. Manufacturer "A's" carton states that this particular staple can hold( 2) 14-2 or 12-2 cables. Manufacturer "B's" carton states that their product is for securing 14-2 or 12-2 cables but does not list a quantity. Staples are identical as far as physical shape and size.Is it fair to say that the latter of the two products could "legally" secure (3) cables? This may sound petty, but why use three .30 cable stackers if three .02 staples are code compliant. Thoughts?

:? why not state the manufacture? :?
 

Speshulk

Senior Member
Location
NY
I ran into a situation today useing plastic NM cable staples. Manufacturer "A's" carton states that this particular staple can hold( 2) 14-2 or 12-2 cables. Manufacturer "B's" carton states that their product is for securing 14-2 or 12-2 cables but does not list a quantity. Staples are identical as far as physical shape and size.Is it fair to say that the latter of the two products could "legally" secure (3) cables? This may sound petty, but why use three .30 cable stackers if three .02 staples are code compliant. Thoughts?

I'm confused how you think it's logical that "B's" staple that is "identical as far as physical shape and size" would be able to hold more cables than what the "A" is saying it can hold.
 

renosteinke

Senior Member
Location
NE Arkansas
The means used to support our wiring methods are not required to be listed. Many manufacturers have chosen to do so, but that's not a code requirement.

In the example of cable staples, all the package does is list the combinations for which the product was evaluated. That, in turn, is determined by what materials the manuacturer provided UL for the evaluation. If they didn't ask for, say, a 12/3 with a 14/3 atop it, that combination won't be included in the roster of 'listed' applications. UL will take the position of 'we don't know.'
 

satcom

Senior Member
We asked
or just use a nail... either or is acceptable.


We once had a new hire show up, with his hand tools, and a bag full of fence staples, when we asked what the fence staples were for, he said to fasten the cable, it took a few weeks to get one of the guys to work with him, and today he owns his own contracting business.
 

kwired

Electron manager
Location
NE Nebraska
The fastening method is not required to be listed.

If the fastening method happens to be listed, don't we have to follow the requirements of the listing to comply with 110.3(B)?

Seems redundant but it is what it is. But then you can just use a non listed product and install it in any way you wish:happysad:

Something to think about.
 
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