UL Standard for Safety Double Insulation Systems for Use in Electrical Equipment
|Publication Date:||1 February 2012|
These requirements cover electrically operated equipment marked "Double Insulation" or "Double Insulated" to be used in accordance with the National Electrical Code, ANSI/NFPA 70.
Equipment marked "Double Insulation" or "Double Insulated" shall comply with the applicable requirements in this standard and the standard covering the particular type of equipment - the end-product standard. In cases where the end-product standard contains requirements for double insulation, that standard takes precedence.