UL 943C OUTLINE
OUTLINE OF INVESTIGATION FOR SPECIAL PURPOSE GROUND-FAULT CIRCUIT-INTERRUPTERS
|Publication Date:||2 November 2012|
These requirements cover ground-fault circuit-interrupters
a) Where the voltage to ground is greater than 150 volts and equipment grounding or double insulation is required by the National Electrical Code, ANSI/NFPA 70,
b) Where the voltage to ground is 150 volts or less and equipment grounding or doubleinsulation is provided, but the use of a Class A ground-fault circuit-interrupter is not practical.
These ground-fault circuit-interrupters