I've mentioned it here before, but a web search on "Low voltage, the
incompetent ignition source" will turn up a very interesting article.

I saw a PCB which was entirely UL-94V0 go up in flames while connected to a
brick supply in "hiccup" mode, delivering only 1w average to the board.

Don't underestimate the ability of electronics to ignite.


On Fri, Apr 4, 2014 at 11:15 AM, Bob Axtell <engineer@cotse.net> wrote:

> Agreed. UL is primarily interested in fire safety. A motor powered
> device is certainly capable of having a fire.
>
> --Bob A
>
> On 4/3/2014 8:54 PM, Harold Hallikainen wrote:
> > Use of a certified low voltage power supply gives protection against
> > electric shock, but does not provide protection against fire. So, safet=
y
> > testing may still be required.
> >
> > Harold
> >
> >
> >
>
> --
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