On 26/05/2015 11:27, Des wrote:
"John Rumm" wrote in message
o.uk...
On 26/05/2015 10:43, Des wrote:
how come when I cut through my wiring going to my 13a sockets all the
sockets are still live?
Sockets are usually wired on a ring circuit. See the illustration he
http://wiki.diyfaq.org.uk/index.php?...ers#Overvie w
Cut one side of the ring, and there is still an alternative path via the
other.
But why do they do that?
It allows you to create a 7.2kW circuit using smaller an lighter cable
than would otherwise be required. Makes it cheaper and easier to wire.
It also performs better under a number of fault conditions, and gives
less voltage drop effects from high loads.
--
Cheers,
John.
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