W
welsh spark
HI all.
I just sat the 2391 exam last night and was asked to calculate max zs for a 300ma rcd on a 230v commercial instalation im i right in thinking using ohms law 230v devided by 300ma devided by 1000 your thoughts on this would be gratefully appreciated.
Thanks in advance
Alan
I just sat the 2391 exam last night and was asked to calculate max zs for a 300ma rcd on a 230v commercial instalation im i right in thinking using ohms law 230v devided by 300ma devided by 1000 your thoughts on this would be gratefully appreciated.
Thanks in advance
Alan