In message , Frank Erskine
writes
On Fri, 11 Nov 2005 18:58:17 GMT, Lee
wrote:

Mogweed wrote:

so no short-circuits, but yet the RCD trips. What's the problem - more
importantly, what's the solution to the problem? )

Have you checked for a misplaced neutral?
'Tis a common mistake on a split load CU...

That does sound like the problem - possibly a neutral swapped with an
earth, otherwise the RCD wouldn't trip with a non-earthed item such as
a radio.

Yes it would, if the kitchen ring neutral has been returned to the
non-RCD busbar. A common and easy to make mistake.

--
steve