Nearly one-third of our client’s inquiries are regarding arc flash and risk assessments. 

• “What does an arc flash risk assessment entail?” 
• “How’s it done?” 
• “Does my facility need one?”  
• “Is an arc flash risk assessment a one-and-done thing?”

 At Keynext, LLC., we strive to be a clear and present voice for our clients and are always glad to answer any questions. 

Misconceptions Around Arc Flash Risk Assessments

There are a lot of misconceptions and a lack of understanding regarding the requirements and updates for arc flash risk assessments. The latest edition of the NFPA-70E, Standard For Electrical Safety in the Workplace, requires a three-year revision cycle.

However, the 2009 revision was the first to introduce the requirement for the arc flash risk to be reviewed every five years. It can be reviewed at a shorter interval because the requirement allows for “at an interval not to exceed five years….” and suggests review when system changes occur. In any case, every five years is the most extended allowable interval.  Even if you have had no systematic and electrical changes in your facilities, you still need an arc flash risk assessment. 

The purpose of an arc flash risk assessment is to determine the levels of energy released in the event of an arcing fault so that qualified personnel can apply appropriate levels of protective apparel when performing work where an arc flash risk exists. The goal is to collect your system’s data so it can be modeled, and analyzed to identify potential hazards, calculate incident energy, determine safe approach distances, and correct PPE selection. 

One of your facilities’ most crucial pieces of information we gather during an arc flash risk assessment is the available fault current level in your system from your utility provider, which is determined by what the utility company delivers to your service entrance. This fault current level is influenced not only by the large green transformer outside your facility but also by the broader grid that powers it. Even changes made to equipment miles away from your facility can affect the fault current your system experiences.

While this data may be the same as when you last assessed it, even a slight change of a few hundred amps can have an impact. It’s essential to account for this to ensure you’re informed of the conditions within your facility.

As you approach the five-year mark, don’t compromise your facility’s electrical system or your employees’ safety by neglecting your arc flash risk study. With Keynext, we will maintain and manage your facilities, ensuring your electrical systems are up to date and running properly. 

Give us a call, and let’s get started: contact us here >