Large MC Feeder Cable

[mstrlucky74]

So I was going to you use 4/c #600 MC cable for a temp situation. It was five sets and a horizontal run of about 40' from one switchboard to another. I was told it's too hard to work with and it's really only for risers...which I guess makes sense. It was suggested to use a 1/C 4/0 soow type cable. My thought was that would be 20 individual runs...that's a lot and more labor in my opinion. Any thoughts? Thanks ...and this is based on copper.

 

[infinity]

Copper 600 kcmil is hard to work with due to it's weight, since it temporary I would substitute aluminum MC. You might have trouble with the EGC for 2000 amps.

 

[petersonra]

a 40 ft horizontal run? my take is use the cheapest cable tray you can find and install how ever many AL conductors it takes.

 

[zbang]

. It was suggested to use a 1/C 4/0 soow type cable. My thought was that would be 20 individual runs...that's a lot and more labor in my opinion.

It would probably be type SC, not SOOW, but its a lot more flexible than 600MC would be (makes that handling/bending easier). OTOH it's also fine-strand so the lugs needs to be rated for that.

Depending on how long "temporary" is, it might be cheaper to rent 4/0 copper and camlock pigtails. Of course, the devil is in the details. AL and cable tray might be the way to go.

 

[petersonra]

It would probably be type SC, not SOOW, but its a lot more flexible than 600MC would be (makes that handling/bending easier). OTOH it's also fine-strand so the lugs needs to be rated for that.

Depending on how long "temporary" is, it might be cheaper to rent 4/0 copper and camlock pigtails. Of course, the devil is in the details. AL and cable tray might be the way to go.

are you allowed to run temp power from a receptacle?

 

[Cow]

Any thoughts? Thanks ...and this is based on copper.

Yes. Have you looked up the weight per foot of the MC cable you want to use?

Then, ask yourself if you'd want to handle that.

 

[zbang]

are you allowed to run temp power from a receptacle?

Don't see why not, it's done all the time. In this case, I was thinking of a whole set of female camlock pigtails on the source and male ones on the destination, with lots of 4/0 between.

 

[petersonra]

Don't see why not, it's done all the time. In this case, I was thinking of a whole set of female camlock pigtails on the source and male ones on the destination, with lots of 4/0 between.

I could see renting the cable and just running it between the two locations. I don't see how adding the camloks into the equation does anything for you though.

I would still not want that laying on the ground.

 

[zbang]

I don't see how adding the camloks into the equation does anything for you though.

Only that most of the places I rent from don't have much or any large bare-end cable (it's all camlock, so I thyink that way). If bare-end is available, might be easier to use for this (don't know... by using camlock cable & tails, you can have one person at each end installing the connections and a couple of helpers stringing the cables all at the same time).

If it had to run on the ground, that's a lot of YellowJacket to protect it. Better to build a stair over a trough, or just go overhead.

 

[SceneryDriver]

Only that most of the places I rent from don't have much or any large bare-end cable (it's all camlock, so I thyink that way). If bare-end is available, might be easier to use for this (don't know... by using camlock cable & tails, you can have one person at each end installing the connections and a couple of helpers stringing the cables all at the same time).

If it had to run on the ground, that's a lot of YellowJacket to protect it. Better to build a stair over a trough, or just go overhead.

Look to staging and rigging rental houses. They have bare CamLocks with bare tails for lighting, sound, and rigging power tie ins. Contact PRG in Secacus, NJ. They're a HUGE rental house can can source what you need. That's really not that much CamLock cable for a large touring rock-n-roll show.


SceneryDriver


SceneryDriver
SceneryDriver

 

[mstrlucky74]

Copper 600 kcmil is hard to work with due to it's weight, since it temporary I would substitute aluminum MC. You might have trouble with the EGC for 2000 amps.

Why?

 

[jumper]

Why?

You would need a full sized EGC in each cable based on the size of the OCPD per T250.122, 250 kcmil CU or 400 AL kcmil.

A quick look at Southwire shows a #2 EGC, that ain't gonna work.

http://www.southwire.com/ProductCatalog/XTEInterfaceServlet?contentKey=prodcatsheet262

 

[infinity]

Why?

You would need a full sized EGC in each cable based on the size of the OCPD per T250.122, 250 kcmil CU or 400 AL kcmil.

A quick look at Southwire shows a #2 EGC, that ain't gonna work.

http://www.southwire.com/ProductCatalog/XTEInterfaceServlet?contentKey=prodcatsheet262

Just between me and Mr Lucky I don't think that anyone will care if this is for a temporary feeder. You could order special cable.