Electricity Today T&D Magazine

Infrared safety: using thermal technologies to protect workers

BY DOUG BARRY, FLIR Systems

Disconnect switches, elbow connectors, cutouts, lightning arrestors, oil-filled circuit breakers, and other electrical components tend to heat up before they fail. The ability to detect overheating on such equipment long before it becomes critical is essential for preventing costly unplanned outages and for protecting workers from exposure to potential arc flashes and faults. The experienced and well-trained know it’s crucial to heed industry standards about maintaining a safe working distance. That’s why more electricians and utility companies are turning to thermal imaging as a practical and more...

In a perfect world, we could all work in weather-controlled environments where heat wouldn’t be a factor and comfort could be maximized. Many workplaces however, deal with very high temperatures and heat stress is a year-round risk that requires serious consideration. For many years the standards addressing the prevention of heat stress-related issues went untouched. Recently the National Institute of Occupational Safety and Health (NIOSH) released an evaluation of the available data on this subject (criteria for a recommended standard), with the goal of setting a new standard. The report; Occupational Exposure to Heat and Hot Environments, contains detailed...