Summary of Topics s797A_3_sum.htmlSummary of Topics
This revision of ANSI/UL 797A dated November 20, 2020 includes Electrical Metallic Tubing, addition of trade sizes 2-1/2, 3, 3-1/2, and 4 in aluminum and addition of certification requirements for raised surfaces (beads) on inside of tubing; 4.4, 9.2, Table 6.2, Table 6.3, and Table 7.1.