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Old 12th September 2013, 12:57 AM   #1
Rob B is offline Rob B  United States
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Default Power conditioners, UPS's? my lights dim when the system is up

Hey all, My sytem seems to draw a large amount of power, enough to dim the lights every time the bass hits when its running near full. Anyways, all i have is a surge strip on it rite now which is worthless. Surely this is bad for my amps. I was wondering if a battery backup would sort of act like a capacitor? power conditioners from what I understand just clean up the wave form, but don't provide any extra capacity, so in my mind wouldn't do any good for the situation? I was looking at the APC back ups like what most most any workplace has their computers hooked to, would that be sufficient for 3 fairly hungry amps?

Any help is appreciated, I'm not very knowledgeable when it comes to home electrical.
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Old 12th September 2013, 05:39 AM   #2
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Dipping of voltage happens when the mains wires are not thick enough.

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Old 12th September 2013, 09:56 AM   #3
DF96 is offline DF96  England
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Buy a generator truck and install it in your yard. Your neighbours won't be able to hear it over the sound of your audio system.
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Old 12th September 2013, 10:57 AM   #4
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A cheap APC UPS is not likely to make a difference; most of the low end models simply pass the input voltage to the output until their is a severe deviation from nominal. At best (or worst) the UPS will beep and transfer to battery backup every time the bass hits. You don't want that.

It is common (and shame on lazy electricians for doing this) for the lighting circuit to share the same branch conductors with the receptacles. So turning on the vacuum cleaner dims the lights for that circuit. Do the lights in the entire house dim or just the ones in that room? It is not likely you have a problem at the panel, just on that branch circuit.
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Old 12th September 2013, 11:19 AM   #5
FoMoCo is offline FoMoCo  United States
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Quote:
Originally Posted by zigzagflux View Post
It is common (and shame on lazy electricians for doing this) for the lighting circuit to share the same branch conductors with the receptacles.
This is indeed common, but not lazy.

It used to be that lighting was on a circuit of its own. One circuit for the entire home. Now imagine what happens if you lose that circuit. Bam! No lights, anywhere. I suppose one could run two circuits to each room, and pay accordingly for it, but sharing lighting and receptacles makes the most sense from a safety, and cost, point of view.

To call it lazy is immature and short-sighted.
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Last edited by FoMoCo; 12th September 2013 at 11:30 AM. Reason: incorrect form of "its"
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Old 12th September 2013, 11:29 AM   #6
FoMoCo is offline FoMoCo  United States
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Quote:
Originally Posted by Rob B View Post
...
Your best bet is to have a qualified electrician install a separate circuit to power your system. Not a cheap fix, but if you can afford enough power to dim the lights...
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Old 12th September 2013, 04:22 PM   #7
Rob B is offline Rob B  United States
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Its every light in the house, very much the same as when the a/c unit kicks on. I know most appliences have a capacitor, no one makes a universal 120v cap? Its a rental house, new wiring is out of the question.
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Old 12th September 2013, 05:53 PM   #8
DF96 is offline DF96  England
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I think you need more than a capacitor.
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Old 12th September 2013, 06:55 PM   #9
FoMoCo is offline FoMoCo  United States
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Quote:
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I think you need more than a capacitor.
+1 There isn't any easy fix to this.
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Old 12th September 2013, 07:04 PM   #10
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There may be a loose electrical connection somewhere in your building. Please advise your landlord of this problem. It could be dangerous!
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