On Thursday 24 October 2013 09:50 Dave Liquorice wrote in uk.d-i-y:

On Thu, 24 Oct 2013 09:05:12 +0100, Mike Tomlinson wrote:

... they are taking my overall leakage too near the 30mA limit on
the
CU.

Aren't you allowed to replace the RCD with a 100mA one in these
circumstances?

The RCD is for shock protection. Pretty sure that has to be 30 mA.

Yes and I'm absolutely sure - not only 30mA trip, but 40mS disconenct time
(at 5x30mA fault IIRC, but in practise, all of mine trip 40mS at 1x30mA
fault).

100mA ones are for circuit protection and normally time delayed to
provide discrimination against downstream 30 mA shock protection
RCDs.

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