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Discussion Starter · #1 ·
I have a customer asking for a 3PH reel system.

He wants 3 reels, one phase per reel. Each reel will have a single 4/0 with a male camlock on the end.

- Is this allowed?

- Won't I need a ground with each conductor? If not, then obviously I need a 4th reel for ground.

- How do I ensure the connection order? This is a rental load bank, so how do we prevent the customer from a potentially dangerous hookup? In the past I have spec'd the Cooper Posi-Lock panels:



These ensure connection order and provide a set of contacts for safety interlock. But I'm not seeing how I can accomplish a level of fool-proofness with this reel arrangement.

Thoughts?
 

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Discussion Starter · #3 ·
Right. Thank you for reminding me about that one!

Is this something anyone has ever seen done? At this point I'm thinking I'll tell the customer these can only be storage reels, not live reels.
 

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We do it with aluminum welding cable reels. The bigger problem is making sure the reels get fully reeled out before use.
 

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Discussion Starter · #5 ·
We do it with aluminum welding cable reels. The bigger problem is making sure the reels get fully reeled out before use.
Good call. A search for welding reels turned up some usable results. What do you do with the ground then? Another reel?
 

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Doesn't the movie industry do something like that when they are on location?
Maybe there's an IASTE electrician on this site who can tell you more?
 

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Doesn't the movie industry do something like that when they are on location?
Maybe there's an IASTE electrician on this site who can tell you more?
Done all the time but not with the cables on reels. Everything has to be paid out.
 

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When I did live sound we used that set up all the time, all 5 individual conductors got taped together to form one cable.

It has a been a few years but I beleive the ground and neutral are reversed to the hots. So there is no way to plug a hot in the ground and vice versa.
 

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In the oil fields we often connect generators using factory made individual conductor cabtire in 3 or 4/0.They are color coded red blue black white and green.Easy not to mix phases. Code compliant also.
 
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