Re: Is it possible to combine two AC power circuits to double current? (limited household current problem)
From: Rich Grise (richgrise_at_example.net)
Date: 02/19/05
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Date: Sat, 19 Feb 2005 03:16:55 GMT
On Fri, 18 Feb 2005 15:44:14 -0800, Robert Monsen wrote:
> Rich Grise wrote:
>> And, just for the sake of reduncancy, adding a battery and inverter is
>> a really stupid idea. And even if you did want to use a battery and
>> inverter for something else, don't use a car battery. Use a deep-cycle
>> marine or RV battery.
>>
> Why exactly is it a stupid idea? Is it dangerous? Expensive? What's the
> problem? Educate me.
It's an unnecessary expenditure, and comes with all the pains in the
ass concomitant with battery power.
> 30A inverters are relatively cheap, as are auto
> batteries. Seems far safer than trying to merge two circuits.
Merging two circuits is also stupid. And saying "use a car battery", I'm
sorry to report, is also not a good idea, even if he _was_ foolish enough
to want to use a battery and inverter for a mill motor.
> Hell, you
> don't even know how often or for how long he is using the thing. If he
> uses it once a month, seems like a waste of money to have his circuits
> upgraded and his wiring replaced.
You didn't read the whole post. I said, if it's #12 or thinner, replace
it with #10. #12 would probably hold up, but you want a safety margin.
The reason for codes is that house fires are very expensive all the way
around.
Heck, he could just run it the way it is, or get a breaker that's designed
for a motor load and it'd work fine!
I _don't_ want him to burn his house down or electrocute himself, contrary
to what you seem to have surmised here.
And I _have_ replaced a circuit breaker panel - the whole panel, in an
industrial setting, i.e., 240V 3-phase. And, if, as he mentioned, he has
some experience with not getting electrocuted, it's almost trivial as
far as technical competence is concerned.
On top of that, he says he wants to install a spa. He'll not only need
a new panel, but probably have to call the electric company to see if he
needs to get his service upgraded.
Thanks!
Rich
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