Hi there, i'd like some advice on whether the following is correct or should I be worried! I'm having my kitchen refitted and this requires several new sockets. The fitter has extended the existing ring main (crimped connections - so OK there). However he is using 1.5mm cable rather than 2.5mm (the existing ring main is 2.5mm). Supply is protected by 32A type B MCB / RCD as you'd expect. A 'part P' sparky has already certified part of it- so I guess he is happy with it - the rest is to be done today and made live. I didn't think you could run a 1.5mm ring on a 32A MCB - I thought 20A max. As you've guessed I'm NOT an electrician but have had a bit of experience but with all the new Part P regs, I don't do any work myself and leave it to the 'experts'.