If the employee feels strongly about it then they need to request the employer provides training and PPE. They can go to OSHA if they choose. Bottom line is if safety is a concern of yours but not your employer then you need to find another employer. As far as going too far I was referring more so to the residential area. The company I work for has been in business for almost a hundred years and never had an incident. We work on commercial equipment, however it is rare we work on anything over 600 volts. However it is odd all of the sudden when you walk into an office building suited to the gills to work on a 277 volt watersource unit.