This is my personal opinion getting from basic information to protect equipment from lightning surge.
Home /Concept /Water AnalogyYou can imagine how SPD works to protect equipment by these illustration.
Analogy for surge current coming to power lines.
Analogy in case of hihg earth potential
SPD works like a water gates in waterways. Gates open if water pressure becomes high level.
Illustration at left side shows the image that sugre current directly comes in route and right side shows the image that induced current.
Again contents in this Web site is my Personal Opnion. I did my best for the contents of this site, but may have some mistakes. We applogize if such things happen. Please remember that we will Not Take Any Resposibilties, even if you take countermeasures for lighting surge following on this contents and have any damage directly on your equipment and/or some other seconday damages.Please do any lightning protection based on your own resposibilty.