i did a perodic test today and have opened a right can of worms.
have to say cant switch main switch of in db so
1st circuit, switch of the mcb disconnect the line from the breaker, disconnect the neutral, and its sparks, ok wrong neutral, however while that cable is still out of the n bar...
KNIPEX
Thread
cables
circuit
fault
faults
mcb
neutral
single
socket
spur
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