I have a old Westignhouse panel at a school I am trying to tap off of. It is a 250 amp 3-phase 208v sub with bolt on breakers. I am wanting to install a 100 amp sub panel for a server room off this panel.
My question is at what point is it considered not a good idea anymore? With all our knowledge and safety concerns am I to never put in a bolt on without killing that panel first? Should I even consider installing this hot or is it now considered an automatic NO?
My question is at what point is it considered not a good idea anymore? With all our knowledge and safety concerns am I to never put in a bolt on without killing that panel first? Should I even consider installing this hot or is it now considered an automatic NO?