In article ,
Clive Mitchell wrote:
So you have equipment with floating mains earths and you have earthed
equipment. A fault occurs, someone bridges the two pieces of
equipment and gets killed.

No - it earths via the screen on the connecting cable.

Which is nor rated to carry mains fault current.

Depends on the value of the appliance fuse - not the plug one. Good
quality co-ax will have a screen cross sectional area at least the equal
of 0.5mm mains cable.


Besides, what's gonna
happen when you grab a bit of gear and then either attempt to plug in or
unplug a connector that was carrying mains derived leakage current via
it's screen.

Probably nothing in the average house - apart from a spark when you
connect.

If you do disconnect equipment earths in the way you've described and
someone does die you will be held accountable for their death and will
face a charge of manslaughter.

Yeh yeh... Can you give an example of where this has happened?

Search Google.

Typical.

--
*Why does the sun lighten our hair, but darken our skin?

Dave Plowman London SW
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