I plan to run electricity to my detached garage workshop. The electrician I found had a look at the wiring in the garage and said I have to use ring circuit otherwise the fuse will trip.
My current wiring in the garage is the a 2.5 mm T&E cable going through a junction box which splits into two radial circuit of sockets (2 and 5 sockets respectively). The maximum load I calculated is around 3.5 KW. The electrician intends to use a 16 A MCB for the sockets. What I don't understand is why making it into a ring circuit will not trip the breaker but my current setup will, providing the load is the same and below the MCB.