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Joined: Jun 2004
Posts: 220
T
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The requirement of 12 in. from a box doesn't say as measured along the sheath of the cable, just 12 in. form the box, cabinet, etc.

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Joined: May 2003
Posts: 2,876
E
e57 Offline
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royta,

Stackers are for allowing multiple cables to be stacked, so they take up less space.

search "3m stackers"

[This message has been edited by e57 (edited 09-10-2004).]


Mark Heller
"Well - I oughta....." -Jackie Gleason
Joined: Jan 2003
Posts: 4,391
I
Moderator
Quote
The requirement of 12 in. from a box
doesn't say as measured along the sheath of the cable, just 12 in. form the box,
cabinet, etc.

So you would be OK with 10'
of free NM between the staple
and the box?

How about the 4.5' requirement?

Can I have 20' of loose NM hanging between
staples 4.5' apart?


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Joined: Sep 2002
Posts: 943
Likes: 2
N
Member
I have heard of an electrician who leaves a 6" loop on the outside of the box so he has slack when the drywallers nick his wire with their bleeping router,If a prohibition were proposed on useing routers to cut openings for electrical boxes what do you think its chances would be? Any inspector with average intelligence should able to tell if one has been used. (That statement is not meant to insult inspectors.)

Joined: Feb 2002
Posts: 2,233
H
Member
Norcal,


I had one inspector around here who yelled at you if you left any slack outside of the box. Don't get me wrong, I feel that a little slack around the box is a good thing, However there some inspectors out there who do not have common sense.

Joined: Sep 2004
Posts: 138
R
Member
Quote
royta,
Stackers are for allowing multiple cables to be stacked, so they take up less space.

search "3m stackers"

The two residential EC's I worked for just stacked up to two 14-2 or 12-2, or combination of both, and used a regular staple. I don't recall if they did the same with 14-3. Perhaps a 14-2 and a 14-3 together. Definitely not more than a single 12-3 though. Was I taught an incorrect way? The 3M website mentions, "putting an end to...the potential heating that could occur when cables are held together tightly under a single fastener." I see the value of using one, but there is no code violation if you don't use one, is there?

[This message has been edited by royta (edited 09-11-2004).]

Joined: Jul 2004
Posts: 9,923
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G
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They use the stackers here to space the romex away from furring strips horizontally when they can't get 1.25" back on a 3/4" furred block wall.
I don't agree but I am not the AHJ.
The policy used to be that had to be in EMT.
The rocker may not hit the wire but the homeowner might.


Greg Fretwell
Joined: Nov 2002
Posts: 558
G
Member
NORCAL: We very seldom use cast-iron here in residential,but if we do,we've got to use regular hubbed fittings,assembled with compression gaskets.


Russell

Joined: Jun 2004
Posts: 220
T
Member
iwire, other sections dealing with NM specify measured along the sheath. I am sure the intent of the section is to measure as the cable flys, but the verbage leaves the possibility for the loop outside of the box to be legal. But it would be hard to keep the cable in compliance with 300-4(D). I am just throwing ideas out there to see if the loop above the box would be legal or not. I don't see that practice in this neck of the woods.

Joined: Jul 2004
Posts: 9,923
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G
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I can see the value of having a little extra wire for the next guy. I think neatness would be the deciding factor. If the wire was placed so it was not likely to get damaged I would move on.


Greg Fretwell
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