Outdoor Cable Tray

[George Stolz]

Is an outdoor cable tray something that is normal to install?

I'm trying to think of a practical application of 230.44 - I've never seen such an installation, so I'm wondering if anyone has actually done this. Just reading the code and came across this and was intrigued, no real world problem in my world with this at the moment.

Thanks,

 

[iwire]

Seen it a few times, never did it.

Picture a bank of transformers sitting on the ground in a fenced in area beside an industrial type building. Cable tray used to bring the SECs into building and switch gear.

 

[epimetheus]

I use outdoor cable tray all the time in industrial plants.

 

[augie47]

I've inspected some industrial and some sewage treatment plants with outdoor cable tray. I have heard of no problems.
All TC cable I have seen has been sunlight resistant (not that there isn't some TC that is not)

 

[Power Tech]

Works great. Been installing it for almost 20 years now.

On oil leases, cogeneration plants. Up to 500 MCM.

We run Corflex and strap down with HD tie wraps.

Looks good too.

 

[eric9822]

Seen it a few times, never did it.

Picture a bank of transformers sitting on the ground in a fenced in area beside an industrial type building. Cable tray used to bring the SECs into building and switch gear.

That is a pretty good description of the installation at the paper mill I work at.

 

[petersonra]

I have seen it in industrial facilities. Sometimes they will stack it on top of a pipe rack.

 

[rbalex]

In over 40 years, I have never worked in a refinery that didn't use outdoor cable tray somewhere. Most large, campus style, industrial facilities and most power plants I'm familiar with use it too.

I've seen it used for every voltage from 24Vdc to 138kVac as well as 4-20mA and optical fiber.

 

[cycotcskir]

I sixth that! I have used them many times in Industrial and Chemical Plants.

Many of the large feeds were PVC Coated MC.

 

[ghostbuster]

Just be aware if the tray goes from outdoors to indoors under sensitive computer equipment,there "may" be problems due to the induced magnetic fields.Many consultants in our area are banning the use of single conductor coreflex cable runs(inside buildings).

 

[Power Tech]

Just be aware if the tray goes from outdoors to indoors under sensitive computer equipment,there "may" be problems due to the induced magnetic fields.Many consultants in our area are banning the use of single conductor coreflex cable runs(inside buildings).

In the early 90's we got a warning about that and terminate all conduits at the building entrance.

The MCC (AB) buildings are set up for that now with the built in place to terminate the cables.

They come with a removable lid for access from the top for easy installation.

Also in the starter bucket there is a possibly of that.

 

[buldogg]

We use outdoor cable tray to bring the feeders from the Utility Substation into the Plant

 

[sawdust454]

I use outdoor cable tray all the time in industrial plants.

Same here, pulled miles of tray cable outside in industrial plants

 

[dana1028]

Is an outdoor cable tray something that is normal to install?

I'm trying to think of a practical application of 230.44 - I've never seen such an installation, so I'm wondering if anyone has actually done this. Just reading the code and came across this and was intrigued, no real world problem in my world with this at the moment.

Thanks,

Is this what you had in mind?

 

[iwire]

Thats beautiful. :grin:

 

[Smart $]

Is this what you had in mind?

Hmmm... didn't realize they sold cable tray at the big box stores