OT: UPS for FreeBSD

[Ralf Mardorf]

> On Fri, 28 Nov 2014 17:49:01 -0800
> perryh at pluto.rain.com (Perry Hutchison) wrote:
> > Chris Hill <chris at monochrome.org> wrote:
> > > On Fri, 28 Nov 2014, Paul Pathiakis via freebsd-questions wrote:
> > > > Get this, the main junction breaker, was a piece of bimetallic
> > > > chunk of metal 1500 kVA circuit designed to melt upon overload.
> > > > *shiver*)
> > >
> > > I believe that is called a "fuse."
> > 
> > "designed to melt upon overload" is the very definition of a fuse,
> > but bimetallic (in the context of overload protection) sounds like
> > a thermal circuit breaker.  I wonder if the combination may indicate
> > that someone is con-fused :)
> 
> A "1500 kVA" bimetallic thermal circuit breaker?

PS: We can assume that VA doesn't mean low V * high A, but it likely
is high V * high A. Regarding to the much A it must be a big piece of
metal and regarding to high V the big piece of metal must bend a lot,
to avoid an electric arc. Assumed it isn't a fuse and it is a thermal
circuit breaker, I wonder how "fast" the metal bends and what sound is
produced when the metal bends. The bimetallic thermal circuit breaker
in our dishwashers is for completely different VA.