jännitesuojan
Jännitesuoja, often translated as voltage protection or surge protector, is a device designed to protect electrical equipment from voltage spikes and surges. These surges can be caused by various factors, including lightning strikes, power outages and restoration, or switching operations within the power grid. When such a surge occurs, a jännitesuoja diverts the excess voltage away from the connected devices, preventing damage.
There are several types of jännitesuoja, including surge protector strips and individual plug-in units. Surge protector
The internal components of a jännitesuoja typically include metal oxide varistors (MOVs) or silicon avalanche diodes.