On 30 Jan, 14:39, "whisky-dave" wrote:

And there was the problem of what if while testing it damaged the computer,
especially where insulation tests are used.

Around two decades ago the engineering department of a Very Famous
University decided to start electrical safety testing. They did this
by buying one of the technicians a megger and telling him to go for
it. He broke every computer and terminal he tried to test. Every.
Single. One. In my research group we locked the doors and hid our
equipment from him.

Another research group had an old valve radio which had at some point
lost its case, but stayed in use nevertheless. The Health and Safety
man visited, saw it, and silently cut off and removed the plug. Within
five minutes of his departure it was back in use ... with bared ends
of wires jammed in the socket.

Ian