By: RK Electrical 

An arc flash is a type of electrical explosion that occurs when electric current travels through the air between two conductors or a conductor and the ground. More specifically, the arc flash is the heat and light created by an electrically energized arc.

What Causes An Arc Flash?

What Are The Dangers?

Arc flash injuries can be violent and often cause serious injury and even death.


Because of these dangers, The National Fire Protection Association (NFPA) has developed specific approach boundaries designed to protect employees while working on or near energized equipment. The further from a potential blast that a worker is, the lesser chance they have of being severely injured.

Facility managers and safety teams should work together to explain risks to employees.

Qualified employees should always wear appropriate personal protective equipment, use insulated tools and follow safety precautions when performing work on electrical equipment. The overall most effective way to eliminate the risk of an arc flash is to de-energize equipment before working on it.


It is in the best interest of business owners to regularly maintain their equipment, continue safety training for employees and provide appropriate safety precautions for anyone working with electrical equipment. Some of the most common dangers for business owners resulting from an arc flash are:

NFPA 70E Electrical Safety Compliance standards require building owners to complete an ARC flash risk assessment on the facility’s electrical distribution system to minimize the risk of arc flash, shock hazards and injuries. RK Electrical can conduct these complex studies and provide the reporting you need for safety compliance. Contact us at to schedule a risk assessment.