Day: སྤྱི་ཟླ་བཅུ་གཅིག་པ། 12, 2025

My Expert Take: In Contact Resistance Testing, It’s All About the Micro-ohms

After decades spent on substation floors and in industrial plants, I can tell you that the most devastating electrical failures are often caused by the problems you can’t see. I’m talking about the silent killer of electrical connections: resistance. A few extra micro-ohms (µΩ) on a circuit breaker contact or a busbar joint might seem […]