Lastly , we arrive a conclusion on test condition of relay ' s electrical life - test device when simulating motor load . this kind of test condition includes the voltage across relay ' s contacts and current through its loop circuit 最后總結(jié)得出繼電器電壽命試驗設(shè)備模擬電動機負載時的試驗條件,其中包括繼電器的觸點電壓和回路電流條件。