GSTeat
Member
- Location
- Grand Rapids, MI
I've seen related questions in past posts but no clear answers. I'm working with a plant that uses cord and plugs as the electrical lockout point for a few machines that are 480v. I know this is not the correct way and that 480v plugs should be de-energized prior to plugging or unplugging them to prevent arcs and/or shocks. But for more credibility in my recommendation, I'm looking for a code or regulation that supports this but can't seem to find it.
Is it just a best practice?
Second, what about lesser voltages? I'm thinking anything over 120v should be de-energized first. Is this correct?
Is it just a best practice?
Second, what about lesser voltages? I'm thinking anything over 120v should be de-energized first. Is this correct?