| 释义 |
{{AFC submission|t||ts=20190306042933|u=Chickacha|ns=118|demo=}} Continuous Ground Monitoring (CGM) refers to an electrical extension cord which has a light at the female end (see Gender of connectors and fasteners) to indicate whether there is continuity in the ground wire throughout the extension cord. If the light at the end is not lit, there has been a loss of ground continuity. See also Ground continuity monitor (GCM). Category:Electrical wiring |