In article ,
diynovice wrote:
I have just had a new Wylex split load CU installed by a local sparkie.
Since then, two problems have occurred that he is struggling to resolve.

The first one being;

As soon as the upstairs Ring is connected to the RCD protected side of
the CU the RCD trips.

In all fairness, he is yet to start troubleshooting this one. Thus has
moved it over to the non RCD protected side of the CU.

I'd just say that any sparks worthy of the name would have tested an
existing ring before connecting it. Just because it 'worked' before on a
fuse protected circuit doesn't mean it will be satisfactory for an RCD
protected one. For example, both neutrals have to go to the correct 'RCD'
busbar - where before there was only one.

--
*Lottery: A tax on people who are bad at math.

Dave Plowman London SW
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