In article 0,
Mike Ring wrote:
Before the days that earth loop resistance meters were common, and
things
were protected by re-wirable fuses, I used to put a short from line to
earth then switch on. If it blew the fuse, the earth was ok.

But there are hazards with this approach, so I'm not recommending it
today.

Given that you not only need low resistance, but the ability to take
full fault current, isn't it safer to do this than trust to an ohmeter?

If it blows a 13A fuse in a sshort circuit, surely thats an indication
there's a "prarper" earth.

Oh, I used to use a plug with no fuse, and expect the 30 amp ring fuse to
blow.;-)

--
*Pentium wise, pen and paper foolish *

Dave Plowman London SW 12
RIP Acorn