comcableguy
Member
- Location
- San Jose, California
Simple question. When installing low voltage cable in plenum areas, do you have to tie off to the ceiling grid below? I have seen it both ways and have heard from inspectors both ways.
UL 300.22, UL 300.11 tie off to ceiling grid below??
- Thread starter comcableguy
- Start date
- Status
- Location
- Simi Valley, CA
The section originally said ".....and shall be attached at both ends." It now says ".....and may be attached at both ends."
I personally don't worry to much about low voltage cable, but I do as that it be secured at both ends for the electrical. Remember the difference between secured and supported. I don't consider it secured if it can whip around.
I personally don't worry to much about low voltage cable, but I do as that it be secured at both ends for the electrical. Remember the difference between secured and supported. I don't consider it secured if it can whip around.
comcableguy
Member
- Location
- San Jose, California
thank you
thank you
Thank you. I have never really gotten a good answer on it. And, the installation instructions on the products never really say. The reason I asked is I saw a product recently that did have installation instructions and specifically said that for low voltage cable you did not have to tie off at both ends. This surprised me a little, since I have had inspectors tell me "that you do have to tie off to the ceiling grid", and some have said "you do not".
again, thanks
thank you
Thank you. I have never really gotten a good answer on it. And, the installation instructions on the products never really say. The reason I asked is I saw a product recently that did have installation instructions and specifically said that for low voltage cable you did not have to tie off at both ends. This surprised me a little, since I have had inspectors tell me "that you do have to tie off to the ceiling grid", and some have said "you do not".
again, thanks
- Location
- Simi Valley, CA
You're welcome. Remember the real reason that you are support the low voltage is that you don't want it laying on the grid. So like I said I don't worry to much about low voltage as long as it's up.
comcableguy
Member
- Location
- San Jose, California
product curiosity
product curiosity
Just out of curiosity, have you inspected anything using the product "Com dangles"? that is the product that talks about not having to tie off to the ceiling grid below. it says UL listed and plenum rated. They have a web site. I have mostly seen and used data J's tied to ceiling wire, and wondered if you thought that this is worth a try. It is much less expensive and seems to be made for ceiling wire, but I don't want to get dinged by an inspector.
product curiosity
Just out of curiosity, have you inspected anything using the product "Com dangles"? that is the product that talks about not having to tie off to the ceiling grid below. it says UL listed and plenum rated. They have a web site. I have mostly seen and used data J's tied to ceiling wire, and wondered if you thought that this is worth a try. It is much less expensive and seems to be made for ceiling wire, but I don't want to get dinged by an inspector.
- Location
- Massachusetts
- Location
- Simi Valley, CA
Thanks Bob.
I see them all the time and like I said, they would work fine for me. LA City didn't want the wires attached to the grid, low voltage or not, so I guess I should have also noted that you should check with the local AHJ and see what they want.
I see them all the time and like I said, they would work fine for me. LA City didn't want the wires attached to the grid, low voltage or not, so I guess I should have also noted that you should check with the local AHJ and see what they want.
comcableguy
Member
- Location
- San Jose, California
tried them
tried them
Thanks everybody for your help.
Used them over the Holidays at a Walmart up here. No problems at all. I think I found me a good product.
tried them
Thanks everybody for your help.
Used them over the Holidays at a Walmart up here. No problems at all. I think I found me a good product.
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