EARTH LEAKAGE DETECTION METHOD

摘要

An earth leakage detection method comprises a step (S102) where an earth leakage detection board detects an abnormal current, and steps (S104-S106) for judging whether the abnormal current is caused by earth leakage or not by comparing the threshold of a predetermined item stored in a storage section, at a time point when an abnormal current is detected in the detection step and a compressor is stopped, with a measurement corresponding to that item.Specifically, when at least one of the operating time, the internal pressure of a motor, and the discharge pipe temperature when the abnormal current is detected is lower than a corresponding threshold, a judgment is made that the abnormal current is caused by earth leakage and earth leakage is displayed at a display section (S108).