a10jp
Electrical
- May 18, 2005
- 150
I have this question on GFCI receptacles. GFCI rating per UL 943, Class A stated that it should be 5 mA. NEC Section 210.8 stated that GFCI's operate on currents of 5 mA, with +/- 1 mA differntials allowed. Currently I am located overseas in Japan, and all the local products for GFCI's are rated at 15 mA. In Europe (Germany) also, 15mA are common place. My question is that whether 5mA is truly a necessity or merely a standard requirement. My question has to do with whether 5 mA is truly a safety issue that makes 15mA a clear violation. But then, if 15mA is truly unsafe, why would they be allowe to use in Gemrnay and Japan. Does anyone have any experience or know the history behind this argument?