| 摘要 |
<p>CURRENT LEAKAGE CIRCUIT BREAKER WITH SELF-TEST FUNCTION FOR WATER HEATERA water heater (100) having a self-testing current leakage circuit breaker (10)5 comprises at least one heating means (20), a heater electronic controller (30), a water supply controller (40). The self-testing current leakage circuit breaker (10) electrically connected to a source of alternating current supply (60) for interrupting current supply to the heating means (20) when a fault condition has occurred and comprises a current leakage sensing component (11) for sensing abnormal current10 flows generated by leakage currents and generating voltage if abnormal current flows are sensed, an abnormal current leakage determination component (12) electrically connected to the current leakage sensing component (11) for determining whether abnormal current flows of sufficient magnitude and duration have occurred, an electrical current interrupting component (13) to disable the15 alternating current supply (60) upon detection of a fault. Furthermore, a circuit breaker testing component (14) that automatically test the functionality of the abnormal current leakage determination component (12) and the electrical current interrupting component (13); and a status indicator to indicate the user of the functionality condition of the abnormal current leakage determination component20 (12) and the electrical current interrupting component (13) upon completion of the self-testing process.The Most Illustrative Drawing: Figure 2</p> |
