It is also possible that it was a TT setup without either an RCD or VOELCB. There are still far too many about. There are several solutions, particularly with the rollout of smart metering which will hopefully hi-light the missing ones. Policing the seals properly would give the Meter Operator / DNO the chance to give all new installations / re-wires the once over; beefing up Part P legislation and enforcing it properly; or introducing a licensing scheme along the lines of Gas Safe.
It is also possible that it was a TT setup without either an RCD or VOELCB. There are still far too many about. There are several solutions, particularly with the rollout of smart metering which will hopefully hi-light the missing ones. Policing the seals properly would give the Meter Operator / DNO the chance to give all new installations / re-wires the once over; beefing up Part P legislation and enforcing it properly; or introducing a licensing scheme along the lines of Gas Safe.