sizing large junction box depth

sevlander

Member
Location
new jersey
Can some one verify if this is correct manner to find junction box depth. I am using 312.6(A) for one wire per terminal for this. I have (8)4" PVC's each with 600Kcmil thwn cu coming the bottom of box in 2 rows deep of 4 across and leaving out the back. Since there are 2 rows deep of conduits, I assume you use the 2nd column for 2 wires per terminal, therefore the minimum depth needs to be 10"based on 600 -700 Kcmil row in the chart. Is this correct?
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector
My read is that you still use the "1 terminal" distance.
Keep in mind the 6X between raceway entries rule,
 
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