Assertion: power line | /r/HasProperty | deenergized
Facets:
Source sentences:
text: (2) verification that power lines are deenergized before work is performed on them, and (3) detection of feedback electrical energy.
text: Fuzzing” must be done only after power lines have been deenergized and properly grounded.
text: Workers must verify that the power lines have been deenergized.