Horizontal NM supports

[jyork89]

I have a job with a metal shop measuring 60’X100’X 20’ in height. It has horizontal framing that has channels that Romex can sit in and run the length of 100’. If I run the romex horizontally at 10-15 feet above the AFF in the channel does it have to be supported in that channel. I thought there was a horizontal exception in the code but can‘t find it. I tried to post a picture but in a bad signal area.

 

[rc/retired]

I have a job with a metal shop measuring 60’X100’X 20’ in height. It has horizontal framing that has channels that Romex can sit in and run the length of 100’. If I run the romex horizontally at 10-15 feet above the AFF in the channel does it have to be supported in that channel. I thought there was a horizontal exception in the code but can‘t find it. I tried to post a picture but in a bad signal area.

Sorry, there's no exception.
The cable would be supported in the channel. However, it won't be secured.
I personally wouldn't have a problem with that.
Will the installation comply with the 15 minute fire rating required in section 334.10(3)?

Ron