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I'm new here... anyone have a firm definition of "competent person" (in Ontario, Canada) for entering a panel? Must the panel be de-energized or do I need the "Michelin Man" suit?
I'm fairly conversant with the Z642 - Arc Flash rule. I have two situations causing us grief. one has been visited in this forum. From time to time, someone must enter a "LIVE" electrical panel to hook up a PC to a PLC. If my panel is designed such that the highest voltage in the PLC panel is 120V ac, my understanding is that, save for a pair of leathers, Arc Flash gear is unnecessary.
The second issue is entering a power panel (less than 600V) to reset an electromechanical overload. I realize this is not a "control" issue, but the rules would be the same, would they not?
I'm fairly conversant with the Z642 - Arc Flash rule. I have two situations causing us grief. one has been visited in this forum. From time to time, someone must enter a "LIVE" electrical panel to hook up a PC to a PLC. If my panel is designed such that the highest voltage in the PLC panel is 120V ac, my understanding is that, save for a pair of leathers, Arc Flash gear is unnecessary.
The second issue is entering a power panel (less than 600V) to reset an electromechanical overload. I realize this is not a "control" issue, but the rules would be the same, would they not?