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Hi All, I was looking at the 'Learn Electrics' video on youtube about Zs and I was confused about the fault currents that flow down the earth wire to disconnect the circuit breaker. The video says that in a fault 700amps flows down the earth wire, but how is that possible when the csa of the...

Hi my name is Emmanuel, new to the industry, I have just completed my Level 2 City and Guilds Electrical Installations course, and am looking for work as an Electricians mate/improver if anyone can give me any recommendations that would be great!