Search results

Thank you for this response. It's now clear tome that my system has and RCD and an MCB. Yes, I am sure that the MCB tripped when the RCD was open. The circuit was originally installed in 2001, but may have been modified subsequently before I bought the flat. Yes, the RCD was tripping when...

Thank you for your responses, everyone. The MCB tripped once, but the thing that trips every time is the RCD/RCBO - I don'tknow the difference. The one in place when I started was a Contactum one marked 7132B (B32). I replaced it with a new one (just in case) which has a slightly wider...

A ring main in my flat, wired in 2001, has started tripping the mcb. It has never been overloaded. It is excessively (?) large (21 sockets, mostly doubles) and serves several rooms. Several sockets are served by only one input cable, but only one has three incoming cables. So there must be...