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What's nec say about 14/4 in wall speaker wire outer layer stripped distance?
This thread has 50 replies. Displaying posts 1 through 15.
Post 1 made on Wednesday May 3, 2017 at 16:23
gerard143
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I was thinking about something. Obviously for a pair of speakers in a room that are only a few feet apart it's easier to just run 14/4. But seeing as the stuff is in wall rated I thought of something. Say they are 10 feet apart you'd have 10 feet of wire to that second speaker that didn't have the outer layer over it or atleast scored open. So obviously this kind of ruins the in wall rating for that 10 feet with the jacket not intact over the speaker leads so I'm curious if the nec has anything on this. Anyone? How do you guys generally wire? 14/4 or 14/2 to each in-wall/ceiling speaker. Anyone ever give you a hard time for having wire with no outer layer for a distance or scored?

Last edited by gerard143 on May 3, 2017 17:12.
Post 2 made on Wednesday May 3, 2017 at 16:34
Craig Aguiar-Winter
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I would run 14-4 to the one, leaving a loop long enough to reach the speaker installed there, and then carry on to the next. When it comes time to wire the speakers I would split 6" of the jacket and pull out/cut just the two conductors I need at that speaker, leaving the other two uncut and tucked back in the jacket.

Craig

Edit, sorry. For you're initial question I don't know what the NEC says but my guess is when you remove the jacket you remove any certification it provided. 10 ft of concealed cable is still 10 ft. Do I think it would be unsafe? No.
My wife says I can't do sarcasm. She says I just sound like an a$$hole.
Post 3 made on Wednesday May 3, 2017 at 16:51
Rob Grabon
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+1 loop at first speaker
Technology is cheap, Time is expensive.
Post 4 made on Wednesday May 3, 2017 at 16:53
ceied
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+200 for loop at first
Ed will be known as the Tiger Woods of the integration business, followed closely with the renaming of his company to "Hotties A/V". The tag line will be "We like big racks and tight holes"...
Post 5 made on Wednesday May 3, 2017 at 16:54
Zohan
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+ 300 loop at first speaker
Post 6 made on Wednesday May 3, 2017 at 16:56
ceied
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On May 3, 2017 at 16:54, Zohan said...
+ 300 loop at first speaker

I see what you did there
Ed will be known as the Tiger Woods of the integration business, followed closely with the renaming of his company to "Hotties A/V". The tag line will be "We like big racks and tight holes"...
Post 7 made on Wednesday May 3, 2017 at 16:59
King of typos
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I believe Craig's idea is the simplest way. It allows you to go to the first speaker, then run it to the second.

As an electrician, if I did that with 120VAC, I would be yelled at from my boss. Because he'll want me to run the 14/4 to the first (light) then a 14/2 to the second light. Understandable as 14/4 is expensive.

Now the question for you is. Would you run the 14/4 to both speakers? Or 14/4 to the first then 14/2 to the second? It comes down to cost. Cost of the wire and/or cost of the labor to run 14/4 then 14/2. You know, to climb the ladder then to climb down to grab the 14/2 and blah blah blah. For something that is done every once and a while, that "labor" of climbing up/down shall be tossed.

KOT
OP | Post 8 made on Wednesday May 3, 2017 at 17:11
gerard143
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Craig's way I agree is the way to go. I'd run 14/4 and score it for speaker one with the lead long enough to reach speaker two. Cost wise 14/4 I feel is generally the better bet unless pairs are super far apart. I couldn't see bothering with 14/4 then 14/2 unless the second speaker was a good ways to justify the hassle.
Post 9 made on Wednesday May 3, 2017 at 17:25
3PedalMINI
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14/4 to the first speaker then 14/2 from the first to the second. Crimp cap them at trim out!
The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin
Post 10 made on Wednesday May 3, 2017 at 17:33
cshepard
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On May 3, 2017 at 17:25, 3PedalMINI said...
14/4 to the first speaker then 14/2 from the first to the second. Crimp cap them at trim out!

That's how I do it.
Chris
OP | Post 11 made on Wednesday May 3, 2017 at 18:10
gerard143
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Hmmm now yahll got me thinking lol.
Post 12 made on Wednesday May 3, 2017 at 18:31
tweeterguy
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On May 3, 2017 at 17:25, 3PedalMINI said...
14/4 to the first speaker then 14/2 from the first to the second. Crimp cap them at trim out!

Yep.
Post 13 made on Wednesday May 3, 2017 at 18:40
ceied
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i always used 14/4 never had any 2 conductor... alway rewan 14/4 to everything...
Ed will be known as the Tiger Woods of the integration business, followed closely with the renaming of his company to "Hotties A/V". The tag line will be "We like big racks and tight holes"...
Post 14 made on Wednesday May 3, 2017 at 19:22
Fins
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Aside from how everyone would do it, does anyone have an answer to the question? Would there be a code violation by stripping back the outer jacket and running the two conductors inside?
Civil War reenactment is LARPing for people with no imagination.

Post 15 made on Wednesday May 3, 2017 at 20:35
Audiophiliac
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Not around these parts. Inspectors here mostly could not care less about LV....mostly. Once in a while you run across one who had a bad day.... But in 15 years, I have only been confronted once by an inspector. He was a piece of work.
"When I eat, it is the food that is scared." - Ron Swanson
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