Treat Energized Work as the Exception
Explain why de-energizing is the default electrical safety decision before troubleshooting or repair.
The default is not bravery; the default is energy control. De-energize first, justify live work second Electrical risk changes character when a cover comes off. A closed, dead-front panel is designed to keep people separated from energized conductors. An open panel can expose shock points and arc-flash energy in the same body space where a person is reaching, testing, or leaning. NFPA 70E treats an electrically safe work condition as the normal target. That means identifying sources, interrupting load, opening disconnecting devices, applying lockout/tagout, releasing stored energy, and verifying absence of voltage with appropriate test equipment. This sequence works because…
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