Flexible 500 KCMIL 1/C 600v cable ?

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Although it's more costly in labor and materials, if you really needed a tight angle perhaps bolted together crimp lugs could be an option depending on the available clearances, etc. Like what is sometimes done inside motor peckerheads.
 
Birken Vogt said:
G-GC is similar to SO. It is big and bulky with a thick jacket. Not what you want in a cramped gutter or something. Maybe you are thinking of type W which is available as single conductor. But I am not sure if the rules allow it as permanent or whatever.
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G-GC and W are all article 400 cord products -can't use for permanent wiring in conduit.
 
Knightryder12 said:
What about type G-GC cable? I have used that on projects where the machinery moves. It's way more flexible that THHN.
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That cable is subject to the rules in 400.12 and 400.12. Would anything in those two section permit it to be used in the application in this thread?
 
Birken Vogt said:
I think it will be less conservative in this case. As you go up in cmils, ampacity does not go up as fast. So you will be slightly undersized.
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If you were to interpolate the graph of ampacity vs size, you would end up being more conservative. If you were to compute amps per cmil of a smaller size than you are looking for and compute using that value then you would def be high, but that's not interpolation.
 
Todd0x1 said:
G-GC and W are all article 400 cord products -can't use for permanent wiring in conduit.
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You are correct. We used them from a junction box to the equipment, no conduit. I thought the OP could remove the 12' section of conduit from the junction box and take to whatever he is connecting.
 
Knightryder12 said:
You are correct. We used them from a junction box to the equipment, no conduit. I thought the OP could remove the 12' section of conduit from the junction box and take to whatever he is connecting.
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Only if that would be allowed by one of the exceptions permitting fixed cord wiring, those are pretty narrow.
 
Knightryder12 said:
Feeding a piece of equipment. Equipment is not structure.
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However it is fixed wiring and other than special cases, Article 400 conductors and cables are not permitted. If you say that the rule in 400.12(1) does not apply to wiring that supplies equipment, than you are saying that the code does not apply to any wiring that supplies equipment.
 
electrofelon said:
I agree. Also (6) ",to facilitate frequent interchange. Really seems like those two conditions are up to the electrician and owner and I don't see what business an electrical inspector would have to disagree
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You have to remember the primary reason for the restrictions on use of cord is take make the install more expensive.
 
I have seen a lot of SO insulation crack and disintegrate over years. Other times it holds up fine. I guess some is just low quality. But other than that it seems fine to me.

I sometimes install custom built gensets that have the connection box mounted solid to the gen head which is mounted solid to the engine. So it vibrates a lot. Any kind of conduit enclosed cable used on one of these will loosen the locknut, saw through the connector/adapter, and saw through the wires. So I use SO, or type G or W, with a gland connector, so that it will actually last a lot of hours.
 
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