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Questions about protecting electrical devices from voltage spikes.
1
vote
RCCB trips when lightning even after installing a shunt-type surge protector. Does that mean...
If there is earth leakage in your system.
For example an RCCB rated 100 mA, nominal voltage 240 Vac.
Since R=240V/100mA = 2.4kΩ, this is the minimum resistance at 240V before your 100mA RCCB could tri …