hi,folks
i need some help
i have a 800amp main incomming over current switch with a bolt on earth leakage current relay,that seem to be tripping in bad weather ie when lightning is around,the site has 12 other sub boards none of which have the same device.
my question is does anyone else think...
mazo
Thread
canada
current
device
earth
lightning
main
main switch
other
switch
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