UL 60320-1 (ND)-2011 家用和类似用途的UL 60320-1器具耦合器的国家差异. 第1部分: 通用要求
National Differences For UL 60320-1 Appliances Couplers for Household and Similar General Purposes - Part 1: General Requirements (Second Edition; Reprint with revisions through and including July 23, 2015)