[sdiy] My PSU...

[John L Marshall]

Ah, but, circuit breakers are a different animal entirely. Breakers may be
ganged. Any one breaker opening trips the others. This is especially useful
in split-phase or three-phase circuits.

With fuses a definite bad idea.


Take care,
John
---------------------------------------------------------------------------
Pacific Northwest DIY Synthesizer meeting, July 20, 2002
See: www.sound-photo.com
---------------------------------------------------------------------------

----- Original Message -----
From: <epeasant at telusplanet.net>
To: "harry" <harrybissell at prodigy.net>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, July 27, 2002 10:44 AM
Subject: Re: [sdiy] My PSU...


> Quoting harry <harrybissell at prodigy.net>:
>
> > Doug wrote: <snip>
> >
> > > leads require fuses, but in North America this is
> > illegal,
> > > you fuse ONLY the "HOT" wire. In North America the
> > ground
> > > is at the same potential as the neutral wire, but in
> > Europe
> > > ground is midway between each line.
> >
> > Illegal ?   Unnecessary perhaps but I never heard it was
> > illegal.
> > Can anyone cite the references ?
>
> This may be slightly different in the US, but in Canada you
> cannot obtain CSA electrical approval unless there is only
> one line fuse, on the hot wire. Fusing the neutral is
> dangerous, if that fuse blows then all of the ac circuitry
> floats up to the 120 VAC level with respect to ground. I
> have had to remove the neutral fuse from many pieces of
> equipment in order for them to pass approval and be sold in
> Canada.
>
> Take care,
> Doug
> ______________________
> The Electronic Peasant
>
> www.electronicpeasant.com
>