Split Loom for Solar Wire Management

[sutonimh]

I've been seeing a lot of split loom like the below being used for wire protection in solar array wiring a lot recently. As an O&M contractor I'm pretty concerned about the longevity of using loom in this kind of application. Additionally I usually see the loom secured and supported using zip ties. I'm wondering if there's any case that can be made around code or best practices where split loom should not be being used in this application. I did a bit of research and couldn't find anything specific I could point to that would not permit loom to be used in this fashion, but it just looks and feels cheap and wrong to me.

Any help this forum can provide would be greatly appreciated. Example of the application I'm talking about below.

http://www.delcity.net/store/1:2/p_811415.h_811434.t_1

 

[drcampbell]

The product page says "UV resistant high temperature", which is encouraging. Then it says "Tested to the equivalent of 3000 hours in the desert sun". 3000 hours in the sun is one year's exposure, and it doesn't say what it takes for the material to pass the test.
I also have my doubts about draping unsecured cables over the sharp edges of a steel c-channel.

 

[shortcircuit2]

That stuff is junk. Doesn't belong on up to 1000 volt DC source circuits. Its not listed. Its not recognized by the NEC.

 

[Carultch]

I also have my doubts about draping unsecured cables over the sharp edges of a steel c-channel.

Specify this part, to protect it from the sharp edges.
http://www.mcmaster.com/#24175k12/=133docu


Also, that is a Z-purlin, not a C-channel.

 

[iwire]

That stuff is junk. Doesn't belong on up to 1000 volt DC source circuits. Its not listed. Its not recognized by the NEC.

It is not required to be listed, it is not a raceway.

 

[Bugman1400]

Those cables should be in conduit and routed underground. This is clear evidence of poor workmanship that will lead to premature failure.

 

[iwire]

Those cables should be in conduit and routed underground. This is clear evidence of poor workmanship that will lead to premature failure.

You don't do any PV work do you?

 

[shortcircuit2]

It is not required to be listed, it is not a raceway.

Well, if its not listed...it may not be approved.

 

[iwire]

Well, if its not listed...it may not be approved.

How do you figure that?

It is not required to be listed, it is not a raceway and the conductors it contains could be run exposed.

 

[flatlander]

I like that U-channel at the bottom partially supported the conduit on one end and threaded rod to the pipe on the other.