Conductors occupy 0.60 square inch at a supplied 40-percent fill limit. What minimum internal raceway area is required?
- A0.24 square inch
- B1.00 square inch
- C2.40 square inches
- 1.50 square inches
Why D is correct
Divide conductor area by the permitted fraction: 0.60 ÷ 0.40 = 1.50 square inches of raceway internal area.