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Three phase power from venue


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#1 Elliott Balsley

Elliott Balsley
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Posted 15 June 2012 - 10:35 PM

I'm preparing for a shoot in a nightclub, and they have cam-lok tails available for us to use. But nobody at the venue can tell me any more details than that. I need to figure out how much power is available exactly. I took this photo of the fuse box, and it looks to me like 100A per leg for 300A total. Can someone confirm that please? I can see that the cam-lok tails has 3 hots, neutral, and ground.
Also — I'm assuming each phase-neutral is 120v, but what would be the standard voltage phase-phase in this kind of venue? Just curious, in case we have any 240v units.

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Thanks in advance for any help!
-Elliott
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#2 Rob White

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Posted 18 June 2012 - 06:09 AM

You seem to be on the right track, although the fuses also say 250v. I would always recommend getting a qualified electrician to have a look if details of the supply are fuzzy - don't want to blow anything up!

Typically with a three phase live to live is 1.73 x line voltage; as the three waveforms are 120 degrees out of sync, and do not peak at the same time.
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