But if the result is an instant huge fault current that starts way above that figure why have it, hence my argument that the fault current grows from zero and fast.. In milliseconds; but is nipped in the bud by the RCD before it gets the chance. Plus if your argument is true why doesn't a 500mA protect you.To protect human life.
It's not about limiting the current to 30mA but ensuring that it operates if 30mA is passing through - well actually 150mA for additional protection to operate within 40mS.
Last edited: