§ 14E-9-001 — Percent of cross section of conduit and tubing for conductors and cables

14E-9-001 Percent of cross section of conduit and tubing for conductors and cables.

Chapter 9, Table 1 of NFPA 70 is adopted by reference with the following modification: 1. Revise Note 1 to read: "See Informative Annex C for the maximum number of selected carrying-conductors (Types THHN, THWN, and THWN-2 only), all of the same size (total cross-sectional area including insulation) permitted in trade sizes of the applicable conduit or tubing." 2. Revise Note 10 to read: "(10) Informative Annex C includes conductor types THHN, THWN and THWN-2 only. All other conductor types shall use Tables 5 and 5A for dimensions of conductors and Table 4 for the applicable conduit or tubing capacity. Solid and round concentric-lay-stranded conductor values are grouped together for the purpose of Table 5. Round compact-stranded conductor values are shown in Table 5A. If the actual values of the conductor diameter and area are known, they shall be permitted to be used." (Amend Coun. J. 4-10-19, p. 100029, Art. VI, § 9)