Every commercial, industrial and residential facility relies on electrical and electronic equipment to perform their everyday functions. Learning how to properly protect these systems is essential to equipment reliability and longevity.
A common misconception about power surges is that electrical and electronic devices are only at risk during extreme weather and lightning storms, but power surges happen all the time without warning – and usually without us even noticing! According to the Insurance Institute for Business and Home Safety, lightning strikes account for just two percent of all surge damage. That means that 98 percent of the damage is done by the hundreds of power surges that are mostly unnoticed every day.
These surges can be the result of something as simple as your air conditioner cycling on or off, or someone using a welder in a neighboring building. They could also be caused by something much farther away - for example, when electrical power plants are connected and disconnected from the grid, which happens frequently as power needs change during the course of a day. They can be caused by equipment failures, and by human error during maintenance and repair activities.