New requirements governing the design of ground fault circuit interrupters (GFCIs) are soon scheduled to come into effect.
The new requirements, which are part of the recently revised harmonized standard, UL 943, Safety Standard for Ground Fault Circuit Interrupters (GFCIs), are intended to increase consumer safety and reduce the risk of household electrocutions.
Specifically,1) the revised standard includes an ?end-of-life? provision which requires a non-functioning GFCI to either render itself incapable of delivering power, or to indicate by visual or audible means that it must be replaced.
2) In addition, GFCIs must now be designed to deny power to the receptacle face if the device has been miswired during installation.
The new requirements are scheduled to become effective as of July 28,2006, after which manufacturers must cease production of older versions and introduce GFCIs designed to meet the new requirements.