UL

Underwriters Laboratories (UL) is an independent product safety certification organisation, which has been in operation since 1894. UL is the most famous Nationally Recognised Testing Laboratory (NRTL) in the United States and conducts certification testing of every electrical appliance. They use 70 different product categories and more than 30 Standards for Safety to evaluate wiring and cable products. UL62, the Standard for flexible cord, is the standard to which trirated cable is approved. It covers flexible cord constructed and listed for use in accordance with Article 400 of ANSI/NFPA 70, The American "National Electrical Code" (NEC). UL has a policy of cross-certification so that a product can be certified by UL using CSA standards, such products are certified C-UL.