An arc flash study can feel like just another box to check, but it has real-world consequences. A properly performed arc flash risk assessment and coordination study helps protect your personnel, reduce downtime, and identify underlying electrical issues. Dyna Scan prides itself on accurate models that produce real-world results. Coordination and arc flash studies are only as good as the system model. Care is taken to verify the accuracy of protective device models in addition to obtaining correct feeder sizes and lengths. Multiple operating scenarios (utility vs generator sources, main-tie-main breaker states, parallelling where applicable, etc) are evaluated to identify the condition that produces the highest arc flash hazard at each location, not just the worst case fault current. Once completed, a list of settings will be generated for all adjustable trip units, and where indicated and practical, replacement protective devices will be recommended.
Clear Communication
• A single point of contact from start to finish
• Proactive updates and fast response times
• Clear scopes, timelines, and expectations — no surprises
Cost-Effective Solutions
• Efficient processes that reduce downtime and unnecessary costs
• Transparent pricing with no hidden fees
• Problems solved right the first time
Professional Execution
• Experienced, well-trained team
• On-time, prepared, and respectful of your facility
• Clean, accurate documentation that meets industry standards
Easy to Work With
• Flexible scheduling around your operations
• Straightforward, collaborative approach
• Reliable, responsive, and low-stress
NFPA 70E requirements for safe work practices to protect personnel by reducing exposure to major electrical hazards. Originally developed at OSHA's request, NFPA 70E helps companies and employees avoid workplace injuries and fatalities due to shock, electrocution, arc flash, and arc blast, and assists in complying with OSHA 1910 Subpart S and OSHA 1926 Subpart K. (viewable for free with NFPA account registration)
One of the most dangerous misunderstandings about NFPA 70E arc flash study requirements involves the five-year review cycle. Many facility managers believe they can conduct a study once and ignore it for five years. That’s not what the standard requires.
NFPA 70E Article 130.5(G) mandates that the arc flash risk assessment be reviewed “periodically, not to exceed five years, to account for changes in the electrical distribution system.” The critical word is “reviewed”—not necessarily recalculated from scratch. However, the review must verify that no changes have occurred that would affect the original calculations.
If your facility makes any of these changes, you need immediate study updates regardless of where you are in the five-year cycle:
• Adding or replacing major electrical equipment (transformers, switchgear, generators)
• Modifying protective device settings or coordination
• Changing utility service configurations or available fault current
• Installing new feeders or branch circuits that affect fault current paths
• Upgrading or downsizing electrical distribution capacity
Between formal updates, your facility must maintain a documented review process that tracks electrical system changes and evaluates their impact on arc flash hazards. This isn’t optional record-keeping—it’s a specific requirement that OSHA inspectors will verify during compliance audits.
Your compliant arc flash study must include these twelve elements:
Arc flash studies are essential for ensuring electrical safety in workplaces. They help identify potential hazards and establish safety protocols to protect personnel and equipment.
Regulatory Compliance
Most industries are required to conduct arc flash studies to comply with safety regulations, such as those set by OSHA (Occupational Safety and Health Administration) and NFPA 70E (National Fire Protection Association).
Risk Assessment
These studies assess the risk of arc flash incidents, which can cause burns, severe injuries or fatalities. These studies determine the potential risk for working in and around the electrical panels.
Personal Protective Equipment (PPE)
Arc flash studies determine the necessary PPE for workers, ensuring they are adequately protected based on the calculated incident energy levels.
System Design and Maintenance
They provide insights into the design and maintenance of electrical systems, helping to identify areas that may require upgrades or modifications to reduce risks.
Training and Awareness
The findings from arc flash studies inform training programs for employees, enhancing awareness of electrical hazards and safe work practices.
Insurance and Liability
Conducting these studies can also impact insurance premiums and liability, as they demonstrate a commitment to safety and risk management.
Overall, arc flash studies are a critical component of workplace safety in electrical environments.
