I've been working in hospitals where I've had to use an ammeter to find hots and neutrals in panels and j boxes. It amazes me that people don't always lable circuits, especialy in a hospital. Hospitals are a tough place to work. Even when you do know the circuit and panel you can't always shut it off. I get agravated with management sometimes because they don't know the hazards we(all electritions) encounter. I would like to show them some of the gruesome safty videos I've seen. Maybe then they'll have some more respect for what we do.
paul