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Default MCB Current Rating for Ring Main

wrote:
jim


16th ed IEE wiring regs is very lean on requirements for ring circuits.
Most of the stuff in earlier editions has been taken out and appears
(if it does) in the IEE On-Site Guide - mostly in Appendix 8. There's
some relevant additional info in Appendix 1 (diversity).


I think this is why quality sparks use radials in the kitchen.
Ring final circuits are rather a UK under specified specification that
maybe are OK in todays low power cumsumable appliances found in all but
the kitchen. I suspect that the worst case a rfc would cope with is the
Vac starting up or the lawnmower getting clogged on a wet lawn. Go into
EU sparking areas and its all redials.


the benefits of ring circuits seem to be often not understood

As 17th addition is round the corner we await with abated breath.


youll die if you do that


Yes I hope to have my 2391 soon (Exam mid July) so I can legally apply
my hate of the amount poor sparking near and around me.


Best learn why our ring system has both safety and cost advanatages
over radials then. Otherwise you'll be one more bad electrician.


NT