Arc Flash Incident Energy Calculator

Calculate Arc Flash Incident Energy



Formula

To calculate the arc flash incident energy:

\[ E = \left( \frac{B}{D} \right)^2 \]

Where:

What is an Arc Flash?

An arc flash is a type of electrical explosion or discharge that results from a low-impedance connection through air to ground or another voltage phase in an electrical system. Arc flashes can cause serious injury or death, as well as significant damage to equipment and property. The energy released during an arc flash can be extremely high, resulting in intense heat, light, and pressure waves. Proper safety measures, including the use of personal protective equipment (PPE) and adherence to safety protocols, are essential to mitigate the risks associated with arc flashes.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ E = \left( \frac{100}{50} \right)^2 = 4 \]

The Incident Energy is 4 cal/cm².

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ E = \left( \frac{150}{75} \right)^2 = 4 \]

The Incident Energy is 4 cal/cm².