The Role of Surge Protection Devices in Preventing Electrical Fires
Surge Protection Devices (SPDs) protect sensitive electronic and electrical equipment from transient overvoltages. These devices play a crucial role in any structure's internal lightning protection, making them the most efficient and commonly used type of overvoltage protection. Why Surge Protection Matters Electrical devices can malfunction or suffer damage when surge voltages exceed their impulse voltage ratings. Surges, often reaching high kilovolt levels, are transient—they occur in concise bursts but carry high energy, enough to damage equipment. These surges can be triggered by lightning strikes, switching operations, and electrostatic discharges. Although they last only a few microseconds to several hundred microseconds, their short duration and high amplitude can cause sudden and potentially damaging voltage spikes. How Surge Protection Devices Prevent Electrical Fires The primary role of SPDs is to limit the voltage supplied to an electric device by ei...