METAL AND NONMETALLIC WIREWAYS

70-269 Exception No. 2: As provided in Section 520-5, the thirty-conductor limitation shall not apply to theaters and similar locations. Exception No. 3: As provided in Section 620-32, the 20-percent fill limitation shall not apply to elevators and dumbwaiters. (FPN): For conductor cross-sectional area, see Tables 5, 5A, 6, and 8 and the applicable Notes to Tables at the beginning of Chapter 9. 362-6. Deflected Insulated Conductors. Where insulated conductors are deflected within a wireway, either at the ends or where conduits, fittings, or other raceways or cables enter or leave the wireway, or where the direction of the wireway is deflected greater than 30 degrees, dimensions corresponding to Section 373-6 shall apply. 362-7. Splices and Taps. Splices and taps shall be permitted within a wireway provided they are accessible. The conductors, including splices and taps, shall not fill the wireway to more than 75 percent of its area at that point. 362-8. Supports. Wireways shall be supported at intervals not to exceed 5 feet (1.52 m), or for individual lengths longer than 5 feet (1.52 m) at each end or joint, unless listed for other support intervals. In no case shall the distance between supports exceed 10 feet (3.05 m). Exception: Vertical runs of wireways shall be securely supported at intervals not exceeding 15 feet (4.57 m) and shall have not more than one joint between supports. Adjoining wireway sections shall be securely fastened together to provide a rigid joint. 362-9. Extension Through Walls. Unbroken lengths of wireway shall be permitted to pass transversely through walls if in unbroken lengths where passing through. 362-10. Dead Ends. Dead ends of wireways shall be closed. 362-11. Extensions from Wireways. Extensions from wireways shall be made with cord pendants or any wiring method in Chapter 3 that includes a means for equipment grounding. Where a separate equipment grounding conductor is employed, connection of the equipment grounding conductors in the wiring method to the wireway shall comply with Sections 250-113 and 250-118. Where rigid nonmetallic conduit, electrical nonmetallic tubing, or liquidtight flexible nonmetallic conduit is used, connection of the equipment grounding conductor in the nonmetallic raceway to a metal wireway shall comply with Sections 250-113 and 250-118. 362-12. Marking. Wireways shall be marked so that their manufacturer's name or trademark will be visible after installation. 362-13. Grounding. Grounding shall be according to the provisions of