In message , Clive Mitchell
writes
In message , "Dave Plowman (News)"
writes
With standard unbalanced connections, removing the mains earths from
everything but one is usually the best way to go. Of course I can't
recommend it on here...

Oh dear. There appear to be people still doing it.

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.

You NEVER disconnect the mains earth from equipment.

Well, actually ....

sometimes you do

on a scope - might be naughty, but sometimes necessary


--
geoff