Time and again, electricians are told to deenergize for compliance and safety. Of course, there are exceptions. The question is what justifies an exception. Answering this requires a review of the regulation. To apply it to real life, one needs something more thought-provoking.
Contact with electrical current is one of the leading causes of occupational injuries and fatalities. Due to the nature of their jobs, wire and line workers carry an exponential risk for being involved in these types of incidents.