Explanation: Section 376.10(4) and 378.10(4) both permit a wireway to pass through a wall as long as the conductors remain accessible on each side of the wall and the section passing through the wall ...

Answer: When the equipment is 800A or more and the personnel doors are with 25 ft of the equipment. Explanation: Section 110.26(C)(3) states, "Where equipment rated 800A or more that contains ...