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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
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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?

User Otherguy
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1 Answer

4 votes

Answer:

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

Step-by-step explanation:

minimum aluminum size = 125/0.8

= 156.25

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

User Tfinniga
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4.9k points
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