There are special measuring tools to check it the power is really turned off after you flip a switch.
So no, electricians (who get to retire) do not do this! You check the tool before and after every check as well!
There are special measuring tools to check it the power is really turned off after you flip a switch.
So no, electricians (who get to retire) do not do this! You check the tool before and after every check as well!