spänningsslag

Spänningsslag, a Swedish term, translates to "voltage spike" or "voltage surge" in English. It refers to a sudden, transient increase in the voltage in an electrical circuit. These spikes are typically very short in duration, lasting only a few microseconds.

Spänningsslag can be caused by various factors. Natural phenomena like lightning strikes are a common source, even if the strike doesn't directly hit a power line, the electromagnetic field generated can induce surges in nearby wiring. Internally within a building, the switching of large electrical appliances, such as refrigerators, air conditioners, or power tools, can also create smaller, but still potentially damaging, spänningsslag. Power grid disturbances, like those caused by switching operations or faults, can also propagate surges.

The primary concern with spänningsslag is their potential to damage sensitive electronic equipment. Modern electronics often operate at low voltages and contain delicate components that can be permanently damaged or destroyed by even brief, high-voltage spikes. This can lead to malfunctions, reduced lifespan, or complete failure of devices.

To mitigate the risks associated with spänningsslag, surge protectors are commonly used. These devices are designed to divert excess voltage away from connected equipment and safely to the ground. They are available in various forms, from power strips to whole-house protection systems. Regular maintenance of electrical systems and using surge-protected power outlets can help safeguard electronics from the damaging effects of spänningsslag.