0, the rules in Sections 370-71 and 370-72 shall apply.

370-71. Size of Pull and Junction Boxes. Pull and junction boxes shall provide adequate space and dimensions for the installation of conductors in accordance with the following: (a) For Straight Pulls. The length of the box shall not be less than fortyeight times the outside diameter, over sheath, of the largest shielded or lead-covered conductor or cable entering the box. The length shall not be less than thirty-two times the outside diameter of the largest nonshielded conductor or cable. (b) For Angle or U Pulls. The distance between each cable or conductor entry inside the box and the opposite wall of the box shall not be less than thirty-six times the outside diameter, over sheath, of the largest cable or conductor. This distance shall be increased for additional entries by the amount of the sum of the outside diameters, over sheath, of all other cables or conductor entries through the same wall of the box. The distance between a cable or conductor entry and its exit from the box shall be not less than thirty-six times the outside diameter, over sheath, of that cable or conductor. Exception No. 1: Terminal housings supplied with motors, which shall comply with the provisions of Section 430-12. Exception No. 2: Where cables are nonshielded and not lead-covered, the distance of thirty-six times the outside diameter shall be permitted to be reduced to twenty-four times the outside diameter. Exception No. 3: Where a conductor or cable entry is in the wall of a box opposite to a removable cover and where the distance from that wall to the cover is in conformance with the provisions of Section 300-34. (c) Removable Sides. One or more sides of any pull box shall be removable. 370-72. Construction and Installation Requirements. (a) Corrosion Protection. Boxes shall be made of material inherently resistant to corrosion or shall be suitably protected, both internally and externally, by enameling, galvanizing, plating, or other means.