When working with open high voltage components , what minimum Arc Rating is required for Arc-Rated Clothing? 4cal/cm^2 6cal/cm^2 8cal/cm^2 10cal/cm^2

When working with open high voltage components, the minimum Arc Rating required for Arc-Rated Clothing is typically determined by the potential incident energy exposure. According to NFPA 70E, which provides guidelines for electrical safety in the workplace, the minimum Arc Rating for clothing should be based on the calculated incident energy level.<br /><br />For general guidance, an Arc Rating of at least \(8 \, \text{cal/cm}^2\) is often recommended for tasks involving higher risk of arc flash exposure, such as working with open high voltage components. Therefore, the correct answer would be:<br /><br />\(8 \, \text{cal/cm}^2\)