"Mogga" wrote in message
...
On Tue, 31 Jul 2007 19:52:40 +0100, Geoff Berrow
wrote:

I've just bought a house which was built in 1965. It has a modern
consumer unit but having just removed a light switch I notice the wires
leading to it are black and red.

At what point does a rewire become necessary?

Just before it kills someone.

If you're concerned you could get it tested to see if it's all working
correctly.
--
http://www.orderonlinepickupinstore.co.uk
Ah fetch it yourself if you can't wait for delivery
http://www.freedeliveryuk.co.uk
Or get it delivered for free

Tends to be alterations that give rise to dangers. If it was wired in
accordance with the standards of the day and is used in an appropriate
manner then it could be safe for years. Some sockets may be getting tired
though.

Make sure you have no metal light fittings if it doesn't have earthed
lighting circuits.