"Serge Auckland" wrote in message
...
Further to my post just now, by the way, the XLR shell of pro gear is
normally bonded to safety ground, NOT audio ground,

Not true at all in most cases.

so touching the
connectors puts the user in contact with safety ground only.

Of course all those TRS connectors may be another matter eh?

Anyhow, whenever a ground lift is used, the device must be earthed via some
connection for it to work. This is usually via the screen to the mixer
earth. So the problem arises in the case of a faulty cable screen
connection. With multiple connections for most devices, this is probably
more unlikely than the mains earth connection coming loose. And just because
the earth *IS* missing doesn't mean it's automatically deadly, another fault
has to occur as well for mains to get on the case/connectors.

The answer is that all such equipment must be regularly tested, and an earth
leakage breaker used, something which is unfortunately not always the case.
And the chance of being killed getting to a gig Vs being electrocuted at a
gig is about 10 million to one.


MrT.