Arc Flash Hazard Analysis
The NFPA 70E states “A Flash Hazard Analysis shall be done before a person approaches any exposed electrical conductor or circuit part that has not been placed in an electrically safe work condition”.
The hazards a worker may be exposed to include:
- Extreme temperatures
- Copper vapor (Expands by 67,000 times when vaporizing)
- Molten metal that may ignite clothing or other materials up to 30 feet away
- Intense UV light that may damage vision
- Hot air expansion (Pressures up to 400 Lbs/ft2)
- Pressure/Sound waves that may rupture eardrums