In message , Tim+
writes
Jack Lawson wrote:


Earlier this week I bought from Homebase a mitre saw:

http://www.homebase.co.uk/en/homebas...-sliding-mitre
-saw-scms-2125u-389395

I had read reviews and seemed to fit my needs perfectly.
Got it home - and tested it. I found that when I started the saw, it tripped
my RCD on the supply. Tested it further - sometimes it tripped - sometimes
not. This was on initial start-up with no load.
Took it back - got a replacement.
The new one is just the same. About 1 in 10 of start-ups the RCD will trip.
The saw seems perfect for my needs - very accurate mitres and 90 degree cuts
are spot on - I think I will live with what for me is a minor problem - but
thought I'd just share.


Is it definitely a RCD tripping and not just a MCB?

I have a 9" angle grinder which consistently trips a 20 amp MCB......

--
Tim Lamb