"Christian McArdle" wrote in message et...
I was having another look at the lighting last night, to work out if
current circuit would take our intended lighting. Our lighting circuit
is running on a 16A MCB, I expected it to be 5/6 maybe a 10A. Is this
16A MCB ok to leave for the lighting circuit?

No, reduce it to 10A. Most light switches and fittings are rated for that
value, except SBC and SES fittings, which are 6A.

THis is what I thought, thanks for confirming that. I take it I just
straight swap the MCB for a 10A. After totting up current usage should
still be well within max load, thankfully.

A few people have suggested it may be prefferable to put the kitchen
on two circuits. I was wondering if the boiler circuit which runs
through the kitchen could have some other appliances added to it.

There isn't much diversity left on a 16A radial. I might consider reuse for
the fridge/freezer, but not for major heating appliances like washing
machines, dishwashers or ovens, unless you can fit with 100% allowance.
(i.e. 3A for CH and 10A for a 2kW oven would be OK).

One alternative if it is run in 2.5mm cable (which it might not be, so
check), is to complete a ring with it back to the CU and upgrade to a 32A
MCB. This could then be used as a non-RCD circuit for fixed appliances,
leaving the other kitchen ring as an RCD protected portable equipment socket
circuit. Ensure the CH runs off a 3A FCU, though.

Great this is the news I wanted to hear, this means I can run 2 rings
in the kitchen and still have a spare MCB in the CU :-) Giving the
option to put all the new lights required in kitchen and recess on a
new circuit.

Even if cable is not 2.5mm we can replace this no problem, and then
have sat wahsing machine etc and boiler all on that. A lot of people
go with the all fixed appliances on one ring and sockets on another,
but I was wondering would you not be better doing a 50/50 between both
rings. i.e. some fixed appliances on each ring to spread out the high
load appliances??

Also the CU we have is not a split RCD/non RCD type its a new box, but
just a 100A main switch, and 6 MCBs. SO I guess both kitchen circuits
will be non RCB.

The FCU for boiler, I presume should be a switched one?

Think I may have a look for a good wiring book, my DIY book is pretty
useless, but does have nice pics ;-) Any recomendations?

Thank you so much for advice/info.

Christian.