Arresters

Surge arresters, lightning arresters and surge suppressors are devices designed to protect electrical equipment against transient overvoltages, limiting the duration and frequency of consecutive current. Overvoltages may arise during, for example, switching on or off unloaded power transmission lines or during lightning strikes on overhead transmission lines, they may damage the insulation and other network components.

The surge arrester, lightning arrester and surge suppressor are devices designed to protect electrical equipment against transient overvoltages, limiting the duration and frequency of consecutive current. Overvoltages may arise during, for example, switching on or off unloaded power transmission lines or during lightning strikes on overhead transmission lines, they may damage the insulation and other network components.

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