Arc Flash Dangers
An arc flash is a rapid release of electricity – typically the result of a short circuit fault – that arcs through the air between two conductors, discharging dangerous amounts of energy. The arc can produce intense light, with temperatures as high as 35,000 °F, blasting molten metal, pressure and sound waves, shrapnel and expanding plasma outward with extraordinary force. The impact can be devastating, cause severe damage to equipment and serious, life threatening injuries to exposed workers.
Why Conduct an Arc Flash Study?
An arc flash study determines the available incident energy and the protective clothing (PPE) requirement for personnel working on live electrical equipment. An arc flash hazard analysis is required by OSHA 1910.335 wherever live switchgear is maintained. The study will calculate the proper PPE, based on arcing fault current levels and protective device clearing times.
Arc Flash Codes & Requirements
- NEC 2014 Section 240.87
- IEEE 1584
- NFPA 70E
- OSHA 1910.335
Does your insurance policy require an arc flash hazard analysis?
When was your last study performed?
Our Hazard Analysis
At Kupper Engineering Inc. (KEI), our experienced electrical engineers are knowledgeable of the latest safety requirements and best practices pertaining to arc flash energy reduction and preventive maintenance. Our arc flash hazard analysis is conducted in conjunction with a short circuit and coordination study, in which we collect data, perform equipment modeling and calculations to identify arc flash hazards and ensure your facility is compliant with the latest NEC, NFPA and IEEE requirements for arc reduction. From the hazard analysis, warning labels and signs, to PPE, trust KEI’s team to help you protect your personnel and provide maximum safety around your electrical equipment.
OSHA regulates arc flash with the help of the National Fire Protection Association standards. The association publishes NFPA 70E, which gives guidelines for arc flash hazard analysis. IEEE, the Institute of Electrical and Electronics Engineers, has Standard 1584, Guide for Arc Flash Hazard Calculations, which the NFPA accepts.
Limit your liability. Conduct an arc flash hazard analysis every 5 years, or whenever equipment is updated.