Electrical safetyNFPA 70E

Electrical safety programs address shock hazards (current passing through the body) and arc flash hazards (explosive release of energy during a fault). Key elements include: establishing an electrically safe work condition (lockout/tagout, test-before-touch), arc flash risk assessment (incident energy calculation, arc flash boundary, PPE selection using the PPE category method or incident energy analysis), qualified person training, and insulated tool requirements. NFPA 70E requires arc flash assessments be reviewed every 5 years or when the electrical system changes. OSHA 1910.333 requires live parts to be de-energised before work unless de-energising introduces additional hazards.