In message , "Dave Plowman (News)"
writes
In article ,
raden wrote:
You NEVER disconnect the mains earth from equipment.

Well, actually ....

sometimes you do

on a scope - might be naughty, but sometimes necessary

Most decent workshops should have a mains isolating transformer
available. Mine has. ;-)

I have one

I've still disconnected the scope earth from time to time


Haven't looked recently, but they are similar in looks and price to a
110v site transformer - if you want a portable type.


--
geoff