Hi, My biggest concern about rcds is if you were to receive an electric shock between live to neutral which is quite easy to achieve when you are removing a socket or a ceiling rose you would very likely be electrocuted as there will be no imbalance and it will just think you are a normal load. If you were to grab live and earth I still think you be electrocuted as the shock would be massive, the only situation I think an rcd could possibly save you is if you only had hold of the live wire only and not working at height but even then I still think it is a hit or miss whether the rcd would operate and it has been know for people to die of currents a lot less than 30ma. Lets say you were working at height and you grabbed hold of a live wire on an rcd protected circuit, how would the rcd save you in that scenario? As I am sure you know the rcd does not stop you feeling the shock and it does not limit the current that flows through your body that is determined by your body resistance, in either case whether the circuit is rcd protected or not you are likely going to fall off the ladder and break your neck, so how has the rcd saved you? Its not a safety blanket that will catch you when you fall.
Now obviously you are thinking turn the power off and check, but circuits can also be incorrectly labelled and I am sure there are a lot of people who don't follow the safe isolation procedure.
Now obviously you are thinking turn the power off and check, but circuits can also be incorrectly labelled and I am sure there are a lot of people who don't follow the safe isolation procedure.
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