Assertion: outlet's wire | /r/HasProperty | bare copper
Facets:
value: from the outlet box
type: LOCATION
value: usually
type: DEGREE
value: with green insulation
type: OTHER
Source sentences:
text: The best way to get this protection is to run that third wire, which is usually bare copper or wire with green insulation, from the outlet box back to the grounding bar in your main electrical panel.