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<blockquote data-quote="TJ Cornish" data-source="post: 137618" data-attributes="member: 162"><p>Re: Sound & Stage Power</p><p></p><p> You are already reducing the amount of cabling by going from one 20A circuit per box to one 20A circuit per 3-4 boxes. The code is absolute, and reasonable: If you have a 50A breaker, it does not matter if you're only using 10A of that, you must have infrastructure that can handle the current rating of the OCPD, as otherwise you have a fire hazard. If you truly only need 20A (hypothetically speaking) and want to run lighter cable, you need to downsize the breaker to match.</p><p></p><p>I suspect that you could get away with a two-phase 30A feed per side, though you only get 1 1/2 20A 208/240 volt circuits out of that, compared to getting 2 1/2 20A 208/240 circuits on a 50A feed. If you do standardize on 30A power you can always run another line, however I think if I went down that road, it may make sense to just skip right to L14-20 receptacles on your distro so you don't need any power breakouts downstream.</p><p></p><p>The beauty of L14-20 is that you can go directly to a Powercon plug to your rig (using the red and black wires for 208v), and you can also use a small unbreakered breakout box that provides 2 20A 120V circuits from a single L14-20 feed.</p><p></p><p>Lots of choices; just make sure you match your wiring to the breakers.</p></blockquote><p></p>
[QUOTE="TJ Cornish, post: 137618, member: 162"] Re: Sound & Stage Power You are already reducing the amount of cabling by going from one 20A circuit per box to one 20A circuit per 3-4 boxes. The code is absolute, and reasonable: If you have a 50A breaker, it does not matter if you're only using 10A of that, you must have infrastructure that can handle the current rating of the OCPD, as otherwise you have a fire hazard. If you truly only need 20A (hypothetically speaking) and want to run lighter cable, you need to downsize the breaker to match. I suspect that you could get away with a two-phase 30A feed per side, though you only get 1 1/2 20A 208/240 volt circuits out of that, compared to getting 2 1/2 20A 208/240 circuits on a 50A feed. If you do standardize on 30A power you can always run another line, however I think if I went down that road, it may make sense to just skip right to L14-20 receptacles on your distro so you don't need any power breakouts downstream. The beauty of L14-20 is that you can go directly to a Powercon plug to your rig (using the red and black wires for 208v), and you can also use a small unbreakered breakout box that provides 2 20A 120V circuits from a single L14-20 feed. Lots of choices; just make sure you match your wiring to the breakers. [/QUOTE]
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