IEEE Cincinnati January 2025 Meeting

An arc-flash hazard analysis, also known as an arc flash study is a risk assessment that evaluates the likelihood of an arc flash incident and how to protect people from the resulting hazards:
– What it does – Determines the potential energy of an arc flash, the likelihood of injury, and the appropriate PPE to protect workers
– Why it's important – Helps ensure compliance with arc flash codes and standards, and facilitates safe work conditions
– Who requires it – OSHA enforces employers are required to ensure their workers understand and can protect themselves from arc flash risks
– How often it's required – NFPA 70E requires arc flash studies to be updated every 5 years or as needed per power system modifications
An arc flash hazard analysis typically includes the following components:
– Field survey – Data collection of the power distribution system
– Single-line diagram – Produce a power distribution schematic
– Short-circuit analysis – Determines the fault current that would flow to each piece of equipment in the event of a short circuit
– Incident energy analysis – Determines the potential arc flash energy present in each piece of equipment per IEEE 1584
– Protective device coordination – Compares the fault current to the interrupting capacity of main circuit breakers or fuses
– Reports and recommendations – Includes label installation with hazard and PPE guidance
Speaker(s): Dave Hernandez,
March First Brewing & Distilling, 7885 E Kemper Rd, Cincinnati, Ohio, United States, 45249