Electric standards and specifications for materials and construction.

CFR · 2024-01-01 · US · Title 7

(a) (1) The cable may be used in single-phase, two (V)-phase, or three-phase circuits. (2) Acceptable conductor sizes are: No. 2 AWG (33.6 mm (3) Except where provisions therein conflict with the requirements of this specification, the cable shall meet all applicable provisions of ANSI/ICEA S-94-649-2004 (incorporated by reference in § 1728.97). Where provisions of the ANSI/ICEA specification conflict with this section, § 1728.204 shall apply. (b) (c) (2) Central copper phase conductors shall be annealed copper in accordance with ASTM B 3-01 (incorporated by reference in § 1728.97). Concentric-lay-stranded phase conductors shall conform to ASTM B 8-04 (incorporated by reference in § 1728.97) for Class B stranding. Compact round concentric-lay-stranded phase conductors shall conform to ASTM B 496-04 (incorporated by reference in § 1728.97). Combination unilay stranded phase conductors shall conform to ASTM B 787/B 787M-04 (incorporated by reference in § 1728.97). Compact round atranded copper conductors using single input wire construction shall conform to ASTM B835-04 (incorporated by reference in § 1728.97). Compressed round stranded copper conductors, hard, medium-hard, or soft using single input wire construction shall conform to ASTM B902-04a (incorporated by reference in § 1728.97). If not specified, stranded phase conductors shall be Class B stranded. (3) Central aluminum phase conductors shall be one of the following: (i) Solid: Aluminum 1350 H12 or H22, H14 or H24, H1

official document · source cfr-2024 · id 7:§ 1728.204