Back when Pontius was pilot, my sainted father (a former sparks turned BTEC electrical craft lecturer) fitted an RCD to the ancestral home, a classic front end job. Final circuit protection was a pair of 3-way MK fused switch disconnectors. Very industrial.
He advised me on the electrical design of my first house, in 1991, and I had two RCDs (rings and lighting) plus RCBO circuits for the fridge and freezer and a separate RCD for the outside supply. This was seen as massive overkill but I reckon was spot on. My current house has an RCD for the ring circuits, then the garage, outside sockets, network cabinet (don't ask) and outbuilding each have separate 1P+N RCBOs (so two-pole disconnect), the fridge and freezer have 1P RCBOs, and the lights and heating are run from a smart home controller that is also RCD protected. I don't cut corners, but in fact the prices have come down so far that this is entirely rational now. I absolutely advocate RCBOs for garage circuits.
Back when Pontius was pilot, my sainted father (a former sparks turned BTEC electrical craft lecturer) fitted an RCD to the ancestral home, a classic front end job. Final circuit protection was a pair of 3-way MK fused switch disconnectors. Very industrial.
He advised me on the electrical design of my first house, in 1991, and I had two RCDs (rings and lighting) plus RCBO circuits for the fridge and freezer and a separate RCD for the outside supply. This was seen as massive overkill but I reckon was spot on. My current house has an RCD for the ring circuits, then the garage, outside sockets, network cabinet (don't ask) and outbuilding each have separate 1P+N RCBOs (so two-pole disconnect), the fridge and freezer have 1P RCBOs, and the lights and heating are run from a smart home controller that is also RCD protected. I don't cut corners, but in fact the prices have come down so far that this is entirely rational now. I absolutely advocate RCBOs for garage circuits.