On Sat, 19 Nov 2016 10:14:30 -0000, "Brian Gaff"
wrote:

Some rcds seem to be a bit sensitive. I have a plug in one on the lawn mower
and its fine but the strimmer trips it for no obvious reason.
Not being sure quite how they detect things when you can get double
insulated, no earth and earthed things to plug in and its still supposed to
work.
Brian

I think the whole point is that they are not supposed to work!

Chopping through the cable with the sharp end of a tool tends to make
the presence of an RCD desirable.

Whether it's a 30mA RCD or 300mA RCD that is required can be
determined using DNA profiling.

Quite a few users of uk.d-i-y would be fine with a 300mA unit :-)


AB


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