dennis@home wrote
Rod Speed wrote

Didnt happen here. We had the mains off for 3 hours to replace a couple
of power poles which have the 11KV distribution line on the top with the
4 wire 240/415 service below that.

That sound stupid,

Everyone does it that way, including you lot, for a reason.

if the 11kV falls down

Normally only happens when some fool drives into a
power pole and the breaker on the 11KV line triggers.

Much less often you can get a tree branch come down
on the line in a big storm and see 11KV on the you could
get contact with the 4 wire 240/415 service below that.

240V and give someone a good shock.

In practice even stupid poms are hardly ever grabbing the 240V line.

There is no alternative when the power lines are on poles There will always
be some 11KV lines above or crossing a 4 wire 240/415 service below that.