A feeder is supplying a 125-ampere, 240-volt panelboard in a multifamily dwelling. The conductors will be THHN aluminum conductors and all terminations will be rated 75C (167F). What is the minimum size aluminum equipment grounding conductor required?

Respuesta :

Answer:

The minimum size aluminium equipment grounding conductor required is 4 AWG.

Explanation:

minimum aluminum size = 125/0.8  

                                         = 156.25

Therefore, The minimum size aluminium equipment grounding conductor required is 4 AWG.