30 AMP OPS

[Pete Masterson]

Bill,

This is great information --- and makes good sense to me. I really
appreciate it as it didn't make sense to me that two 30 amp breakers
would trip with 16 amps load on each... or 30 and 1, etc.

I'll have to poke around at the cook top to see what voltage it
operates with (I assumed that it was 220 as it's a 2-burner version
of a 4 burner cook top I had prior to converting my home to a gas
range). I suppose, however, that it could be 110v as it only has half
(or less) the demand of the 4 burner home version. Hopefully I can
find the papers on the cook top in the blue box as the manufacturer's
plate (if it is present) is inaccessible without disassembling stuff.

I have a strong respect for electrical devices and so far I have
successfully avoided completing any circuits with any parts of my
body involved --- and I plan to keep it that way!

Pete Masterson
aeonix1@...
'95 Bluebird Wanderlodge WBDA 4203
El Sobrante, CA




On Aug 13, 2006, at 10:20 AM, Wilhelmus Schreurs wrote:

> Hi all:
>
> The wiring that we have in our homes and also in our BB is all
> single phase wiring. Very rarly would one find 3 phase wiring
> other than in either a commercial or industrial application.
> We use single phase power, with two legs.
>
>
> “with your 30amp 220 volt breaker at the house you have 30 amp
> available on each leg (red,black) but not at the same time, you can
> draw 30 amps through that breaker total. Ie: 30 on one leg and
> zero on the other, or 15 and 15, or run a total of 30*110 =- 3300
> watts. By design the breaker will trip if you draw more than 30
> amps in any combination.
>
> This is false. In a 220 volt circuit, in which you have 2 legs,
> it is possible to draw a total of 30 amps * 220 volts for a total
> of 6600 watts. HOWEVER, each LEG is only designed to carry a total
> of 30 amps * 110 volts or 3300 watts., so if one leg is overloaded
> it will trip both breakers.
<snip>


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