The increasing use of electronics in industry, domestic sphere and public buildings inevitably leads to interference and damage to equipment and installations through overvoltages.
In order to prevent damage to equipment and installations and protect life, overvoltages must be reduced to a harmless level. Just as each installation and device is protected against excess and offset current with fuses, circuit-breakers and fault current switches, so protection measures against overvoltages should be a matter of course because overvoltages are no less dangerous |
