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Is It Safe? z z z z z This device is claimed to eliminate ground loop problems Uses a pair of back-to-back rectifier diodes in series with safety ground Essentially an open circuit until voltage difference reaches about ± 0.6 V (~ 400 mV rms) Will it survive a 150 A fault for 2.5 seconds or a 1,000 A fault for 10 ms* without opening up? Ebtech It is NOT UL Listed! * These currents and times are based on a UL study that measured fault currents and breaker response times in over a thousand homes. Understanding, Finding & Eliminating Ground Loops 28