Outdoor Rated Cable Assembly

[mstrlucky74]

Is there an AL conductor cable assembly that can run exposed to the elements with 3 #750mcm? I am thinking SEU cable?

 

[infinity]

750 kcmil SE cable? There is probably an MC cable that would work.

 

[mstrlucky74]

750 kcmil SE cable? There is probably an MC cable that would work.

But can't be run exposed outdoors.

 

[augie47]

This should do the trick:
http://www.southwire.com/products/AlumaflexTypeMCJcktedALTHHNConductors.htm

 

[hurk27]

Is there an AL conductor cable assembly that can run exposed to the elements with 3 #750mcm? I am thinking SEU cable?

Finding a cable that fits all your needs can be tricky, just using the term "exposed to the elements" is kind of open as there are many listings that the cable must be listed for, here are some of the things cables run outdoors must be listed for and or identified on the cable for such use:
Wet location.
Sunlight resistant.
Underground (USE)
Aerial with or without messenger support.

Also some locations could be considered subject to damage to the local AHJ and should also be considered if it would be required to protect the cable in a raceway.

The problem of larger sizes can be availability as an SER type cable which would have three insulated conductors and a over all uninsulated EGC in a 750kcmil size might be hard to find.

Also keep in mind that USE cable can not be used indoors and must be terminated outdoors and changed over to a wiring method allowed indoors, also we are required to size the conductors to the 60?c column in table 310.15(B)16 because 338.10(A)(4) points us to part II of article 334 which 334.80 requires the above. this can change what size you need to run.

If this is industrial then tray cable could maybe use be used check 336.10 and .12 for the limitations, but I have never seen aluminum tray cable.

 

[Hv&Lv]

Here is a good MC cable that can be direct buried.


http://www.southwire.com/ProductCatalog/XTEInterfaceServlet?contentKey=prodcatsheet293

 

[infinity]

But can't be run exposed outdoors.

I was thinking of the MC cable in Augie's/HV's link.

 

[iwire]

But can't be run exposed outdoors.

Sure it can if you get the right type.

 

[mstrlucky74]

Finding a cable that fits all your needs can be tricky, just using the term "exposed to the elements" is kind of open as there are many listings that the cable must be listed for, here are some of the things cables run outdoors must be listed for and or identified on the cable for such use:
Wet location.
Sunlight resistant.
Underground (USE)
Aerial with or without messenger support.

Also some locations could be considered subject to damage to the local AHJ and should also be considered if it would be required to protect the cable in a raceway.

The problem of larger sizes can be availability as an SER type cable which would have three insulated conductors and a over all uninsulated EGC in a 750kcmil size might be hard to find.

Also keep in mind that USE cable can not be used indoors and must be terminated outdoors and changed over to a wiring method allowed indoors, also we are required to size the conductors to the 60?c column in table 310.15(B)16 because 338.10(A)(4) points us to part II of article 334 which 334.80 requires the above. this can change what size you need to run.

If this is industrial then tray cable could maybe use be used check 336.10 and .12 for the limitations, but I have never seen aluminum tray cable.

THe run is going to be vertical up the building as it's going up...temp for the crane.

 

[mstrlucky74]

This should do the trick:
http://www.southwire.com/products/AlumaflexTypeMCJcktedALTHHNConductors.htm

Thanks Augie!!! Looks applicable to the install.

 

[iwire]

Thanks Augie!!! Looks applicable to the install.

We run tons of MC and I am a fan of it but check out the pounds per foot of that size cable and consider the labor needed and equipment needed to install it before you decide.

When we work with sizes like that we end up hiring an electrical line construction contractor to work with us that has the large number of pulling sheaves and other specialized equipment to get it done.

 

[mstrlucky74]

Wow....Article 338 is a little confusing as to whether or not it can be run exposed in a commercial building as a vertical feeder to feed loads.

 

[north star]

: - : = :

"Wow....Article 338 is a little confusing as to whether or not it can be run exposed in a commercial building as a vertical feeder to feed loads."

Is it actually going to be installed inside a Commercial bldg. or outside ?
Also, do you know what method(s) of support for this size cable
assembly will be used [ RE: any structural issues ] ?

: = : - :