2013ANSI/UL 2442-2013 Standard for Safety for Wall- and Ceiling-Mounts and Accessories
2012ANSI/UL 2442-2012 Standard for Safety for Wall- and Ceiling-Mounts and Accessories
2011DIN EN 50551-1:2011 Simplex and duplex cables to be used for cords - Part 1: Blank Detail Specification and minimum requirements; German version EN 50551-1:2011