On Monday 22 March 2004 20:18, David V. Corbin wrote:
> >>> However, a DPST (breaks both live and neutral) is safer IMHO
>
> NO,NO,NO!!!!!!!!!!!!!!
>
> This can potentially leave a circuit floating, wich can be much more
> dangerous. Try to HI_POT test a device in this configuration, and you
> may very well let the "magic-smoke" out. If you are switching on the
> raw power side, the neutral should always remain connected. In fact
> this is code for many (most/all) CE/UL approval stamps!
So, how are you supposed to wire a switch on equipment meant to be used
on hot/neutral (120V) and hot/hot (208/240V) power inputs, like
autoswitching computer power supplies?
Pat
--
Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/
The Computer Refuge --- http://computer-refuge.org
Received on Mon Mar 22 2004 - 20:30:10 GMT