NFPA 70E 130.3 exception no. 1 allows not performing an arc flash analysis on circuits <240 where fed by a single transformer rated <125 kVA.
Is there a method to visually determine the size of a single pole mounted transformer - from the ground?
What size transformers are typically used by the serving utilities when the electric service size is 120/240V 200A, or 120/240V 400A?
Is there a method to visually determine the size of a single pole mounted transformer - from the ground?
What size transformers are typically used by the serving utilities when the electric service size is 120/240V 200A, or 120/240V 400A?