Rcd Controlled Circuits Fuse Box. The residual current device is not protecting all the circuits. Circuit breakers can look the same but an rcd safety switch will have a test button located on the front usually with a t symbol on it.
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Split fuse board with single rcd least common although still about if your consumer unit looks like the one above. For more on rcds please click here. C circuit breakers these are automatic protection devices in the fusebox that switch off a circuit if they detect a fault.
This modern fusebox sometimes called a consumer unit has built in rcd protection but only on the circuits colored green generally the main outlets downstairs.
Check to make sure it is in fact an rcd and not just a circuit breaker which simply acts like a fuse. C circuit breakers these are automatic protection devices in the fusebox that switch off a circuit if they detect a fault. Turn off all circuit breakers cbs that are controlled by the rcd that is tripping note if there are appliances that get upset by power being shut off and restored repeatedly turn these off until after the problem has been sorted eg a fridge or freezer. Check to make sure it is in fact an rcd and not just a circuit breaker which simply acts like a fuse.
