I don’t know where you live but here in the Netherlands we always turn the power off first. (Another thing I like about the trades so far are jokes like this.)
Last I checked, one of the biggest causes of arc-flash deaths were linemen turning off the lines and someone turned on a generator in response to the power being off and back-feeding the power through the lines because they didn't use a transfer switch.
I got lit up by 277/480 when I worked as an electrician because someone removed a lockout and turned on the breaker.
In any case, not all jobs can have the power turned off.
I don’t know where you live but here in the Netherlands we always turn the power off first. (Another thing I like about the trades so far are jokes like this.)
Last I checked, one of the biggest causes of arc-flash deaths were linemen turning off the lines and someone turned on a generator in response to the power being off and back-feeding the power through the lines because they didn't use a transfer switch.
I got lit up by 277/480 when I worked as an electrician because someone removed a lockout and turned on the breaker.
In any case, not all jobs can have the power turned off.