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-   -   Can lights and wire support. (http://www.diychatroom.com/f18/can-lights-wire-support-150205/)

bf514921 07-14-2012 08:22 AM

Can lights and wire support.
 
I am wondering what the nec 2011 code for can lights , connectors and stapling the wire near the can light.

So my can lights are in place, wired, with strain releif connectors on all wires in and out of the can lights. sll the wiring except the switch wire goes through the joists.

my question: I am looking at it now and wondering if i need to re wire all 16 can lighs:( and make the wires longer so i can put a small loop of wire near each can light that i can stape to the joist. Is this required by the current 2011 NEC?

Speedy Petey 07-14-2012 08:39 AM

Yes, you need to staple within 12" of the box on the light, measured along the cable.

k_buz 07-14-2012 08:42 AM

You need to staple romex 12" from each box (or can light) and 4' 6" there after.

So if your piece of wire is 11' long, you will need 3 staples.

If the wire runs perpendicular thru bored holes, that is considered secured and supported.

k_buz 07-14-2012 08:43 AM

I am REALLY curious about these strain relief connectors. Could you post a picture?

Speedy Petey 07-14-2012 08:44 AM

Quote:

Originally Posted by k_buz (Post 965399)
I am REALLY curious about these strain relief connectors. Could you post a picture?

I think it's a DIY term for romex connector.

bf514921 07-14-2012 08:58 AM

never heard them called anything else i think they are what you call romex connectors.
http://www.grainger.com/Grainger/cab...3As&sst=subset

wait perpendicular to the bored holes is considered support?

so if my bored hole is within 8 inches of the can light i don't need a staple?

maybe i should just spring for the 130$ for copy of the 2011 NEC so i can just read it. I hate not being able to see a standard i am supposed to meet.

jbfan 07-14-2012 09:07 AM

You still need a staple near the can.

stickboy1375 07-14-2012 09:30 AM

12 Attachment(s)
Quote:

Originally Posted by Speedy Petey (Post 965396)
Yes, you need to staple within 12" of the box on the light, measured along the cable.

I don't see where I have to measure along the length of the cable, I just need a support within 12" of the box, measured any direction I want.

Speedy Petey 07-14-2012 09:40 AM

Quote:

Originally Posted by stickboy1375 (Post 965417)
I don't see where I have to measure along the length of the cable, I just need a support within 12" of the box, measured any direction I want.

You're right.
314.17 Exception specifically states that the measurement is to be "measured along the sheath". I always though 334.30 had the same wording. :(

stickboy1375 07-14-2012 09:46 AM

12 Attachment(s)
Now, check out 334.30 (a) Pretty clear to me that if the hole in the joist is within 12" of the junction box on the recess can, then he has met the critera of securing and supporting. Thus, no staple is required.

bf514921 07-14-2012 09:57 AM

1 Attachment(s)
think i odn't understand. I understand the supporting wire every 4 feet when running parrallel to a joist, makes sense. i think i dont understand what suffices for support for a can light. my wire is perpendicular to the joists, almost all the wire is. i think i still need a stape even with the connectors and support so close to the can lights. i will try to add a picture shortly hopefully this makes my eplanation a little clearer.

stickboy1375 07-14-2012 09:59 AM

12 Attachment(s)
Quote:

Originally Posted by bf514921 (Post 965442)
think i odn't understand. I understand the supporting wire every 4 feet when running parrallel to a joist, makes sense. i think i dont understand what suffices for support for a can light. my wire is perpendicular to the joists, almost all the wire is. i think i still need a stape even with the connectors and support so close to the can lights. i will try to add a picture shortly hopefully this makes my eplanation a little clearer.

I'm betting you don't. :) but put one in if you so desire.

bf514921 07-14-2012 10:34 AM

i dont really want to, i just want to meet whatever is required in the code.

stickboy1375 07-14-2012 10:57 AM

12 Attachment(s)
Your picture looks fine. IMO, you met the requirements of 334.30 (A)

bf514921 07-15-2012 10:06 AM

do i need to have an extra l loop of wire near the can light?


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