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Topic: Page Two
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Alan Penick
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Jan 2017
Alan Penick (Venice, Florida, US) says...

I am working in an existing home with an already installed 200 amp panel

There is room for additional breakers, but do not want to overload the panel.

How can I calculate how may more breaker amps I can add.

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Ryan
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Dec 2016
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Ryan says...

Hi Alan. The easiest way to do that would be to do a load calculation on what you currently have. You can use my tool here: http://www.wireyourownhouse.com/tools/housecalc.html. That will tell you where you're currently at, then you can see how much space you have left. Keep in mind that even when adding breakers or circuits, you don't just add the amp number of the breakers, they will seldom, if ever, actually draw that much. Just figure the estimated load on the circuits you are adding.

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Mark
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Dec 2016
Mark (Nebraska, US) says...

I was ready to get a permit to rewire my upstairs and then I read this: "Please be advised that according to state law, permits and inspections for wiring of single family dwellings are only legally required if a new electrical service is installed."

What constitutes "new electrical service"?

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Ryan
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Dec 2016
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Ryan says...

Hi Mark! That's a good question. I haven't seen that wording before, what state are you in? The electrical service consists of the meter, the main panel and the service entrance conductors. It sounds like you are probably just rewiring or installing branch circuits to lights and plugs; if that's the case then, according to that wording, it sounds like you may not need a permit in your area.

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Ryan
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Dec 2016
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Ryan says...

This is a brand new feature on my site! You can use it to ask a question or make a suggestion, or just leave a comment/review. If everyone asks questions here, I can reply with answers and others with the same question can see it too!

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