I haven't been able to find anything written on why 2 core and earth cable can be supplied with the earth cable smaller than the active and neutral.
Have seen catalogue products with 2.5 sq mm A & N and 1.0 & 1.5 sq mm earth cable included. Is this cable within regulations?
I don't live in a country where regs are highly regarded. People do get hurt because of poor compliance, little understanding and a marked lack of trained professional electricians. I can't do the work myself but I want to understand the background and aspects to supervise the job of rewiring a house.