HOW MUCH AC POWER? (working backwards)

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netrecce
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Joined: Sun Oct 12, 2014 2:50 pm
Location: East of Seattle

HOW MUCH AC POWER? (working backwards)

Post by netrecce » Thu Jun 01, 2023 2:57 pm

In the real word, how far can two 10-amp circuits be stretched for Live Music in a Park?

Most advice is based on what you WANT to drive… and how much power you will need to do it. Good approach, but this time I need to do the opposite. Generators are not allowed in this park and two 10-amp circuits is all I have to work with. (sigh)

The powered mixers and monitors I have with the LOWEST power requirements are:
- Peavey XR 696F = 500W, 120VAC, 60 Hz ( 15 Amp internal fuse)
- Peavey XR 8300 = 360W, 120VAC, 60 Hz ( F8A/250V internal fuse)
- Peavey PV 15 PM = 110W, 120VAC, 60 Hz ( 3.15 Amp internal fuse)

I have a huge variety and quantity of passive Peavey 8-ohm mains and monitors I can select from. Not sure how many to use. (It would be easy to exceed the output capacity of my powered mixers.)

Mostly, I don’t want to keep tripping the 10-amp Park breakers that are 250 ft. away. Maybe put a lower Amp fuse in the XR 696F ? Any advice on safely stretching use of the 10-amp Park circuits will be greatly appreciated.
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Stryker57
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Re: HOW MUCH AC POWER? (working backwards)

Post by Stryker57 » Fri Jun 02, 2023 2:04 pm

i am not an electrical expert at all , but see if you can get a temp 20-30 amp 240v cord ran from the box (if its not too far ) and have then split it intoo 2 sets of 2 or 4 120 volt plugs at your location. where you need it,
if they cant do that then run 15 amp heavy duty cords from separate beakers, (Because the long run will cause a drop too)
or even consider renting a generator. ( OOPS NEVERMIND) ,
10 amps isnt much, but if thats all you have then the more breakers and heavy cords will be all you can do,

there is an equation to tell you the max you can get from a 10 amp box, but there is aslo constant draw and surges to consider.
the length of the run will drop you some too. if your just talking PA you may be ok, but if your wanting 250 ft of cord ,lights,,, PA... guitar /bass etc off a 10 amp . you'll probably pop the breaker a couple times before you figure just how little you can use.

Bartman
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Re: HOW MUCH AC POWER? (working backwards)

Post by Bartman » Mon Jun 05, 2023 9:26 am

netrecce wrote:
Thu Jun 01, 2023 2:57 pm
In the real word, how far can two 10-amp circuits be stretched for Live Music in a Park?

The powered mixers and monitors I have with the LOWEST power requirements are:
- Peavey XR 696F = 500W, 120VAC, 60 Hz ( 15 Amp internal fuse)
- Peavey XR 8300 = 360W, 120VAC, 60 Hz ( F8A/250V internal fuse)
- Peavey PV 15 PM = 110W, 120VAC, 60 Hz ( 3.15 Amp internal fuse)
That is quite unusual to have a 10A circuit. Almost all are at least 15, and more commonly 20. Regardless, in real-world experience, you could probably run all 3 amps on one 10A circuit and be fine with that. With two 10A circuits, that is for sure plenty for the amps you have listed. Put the 500W one on 1 circuit, then the 360W and 110W on the second circuit. 10A will get you about 1,200 watts of power. (Power = Voltage x Current) 120V x 10A = 1,200W

netrecce
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Joined: Sun Oct 12, 2014 2:50 pm
Location: East of Seattle

Re: HOW MUCH AC POWER? (working backwards)

Post by netrecce » Wed Jun 14, 2023 6:37 pm

Thank you Bartman,

You are looking at this circumstance just as I am. Still, I realize that Peavey's listed "power requirements" are not absolute numbers. That's why I was looking for real world experience on how close to the 10 amp threshold I might get. ( I have some other lower power items I need to plug in also.)

I have never before encountered 10 amp circuits in a park. Park was equipped in the early 1960's. Main panel is 50 amps. All circuits are 10 amp. Nothing has ever been updated. Surprisingly, the ground seems to be fine.

Thanks
.

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