On Mon, 3 Apr 2006 08:50:05 +0100 someone who may be chris French
wrote this:-

The maximum length that can be protected by the supplier fuse is their
decision - it varies , but something like 2-3 m is the norm it would
seem. Longer than what they allow, and you should protect it with your
own switch fuse somewhere near the incoming supply.

How would this help? The customer's fuse would need to be able to
discriminate with the "electricity board" fuse to be of much use.
However, it would also need to be able to cope with the maximum
demand. That would be fine if the "electricity board" fitted say
150A plus fuses and customers fitted say 80 or 100A fuses.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54