Confirmation Of The Power Grid And Equipment Status Before Operating High-voltage Disconnect Switches
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Ensure the affected lines have been de-energized according to dispatch requirements, and disconnect all relevant load switches and high voltage electrical isolator.
Inspect the switchgear and distribution equipment located at isolator high voltage for cracks, loosening, corrosion, or contamination on the appearance, insulation supports, contacts, and connecting busbars.
Verify the busbars, grounding devices, and protective grounding system to confirm proper grounding and the absence of potential leakage risks.
