Those of us who have worked with, or around, electrical equipment have witnessed electrical arcs. At the very least, we’ve seen the sparks produced when a relay or contactor switches off. This is easily observed by watching a motor starter with open contacts. When the motor turns on,
In the last few years, the electrical industry has seen significant changes in safety standards. One area of major change is with surge protection. In the past, you would use a surge arrestor or transient voltage surge suppressor (TVSS) to solve transient overvoltage or surge issues. Today, we don’t even use the words surge arrestors…