Arc Flash Hazard Analysis Calculator
Arc flash hazard analysis is crucial for ensuring the safety of electrical workers. Our calculator helps you determine the incident energy and arc flash protection boundary, enabling you to implement appropriate safety measures.
- Enter the voltage, current, time, and gap values.
- Click the ‘Calculate’ button.
- View the results below the calculator.
The calculator uses the following formula to calculate incident energy:
I = (V * I * t) / (1000 * d)
Where:
- I = Incident energy (cal/cm²)
- V = Voltage (V)
- I = Current (A)
- t = Time (s)
- d = Distance (mm)
| Voltage (V) | Current (A) | Time (s) | Gap (mm) | Incident Energy (cal/cm²) |
|---|
- Always wear appropriate personal protective equipment (PPE) when working on or near live electrical equipment.
- Regularly inspect and maintain electrical equipment to prevent arc flash incidents.
- Implement an effective lockout/tagout procedure to prevent unexpected energization of electrical equipment.
What is the arc flash protection boundary?
The arc flash protection boundary is the distance at which the incident energy level is just below the level that would cause second-degree burns.
For more information, see the following authoritative sources:
OSHA’s Arc Flash Electrical Safety Guide NFPA’s Arc Flash Hazards article