LPI’s Transient Earth Clamp (TEC-100) prevents earth potential differences by operating only under transient conditions to effectively clamp all connected earths together. Under normal conditions, the TEC-100 presents an effective open circuit. Once the earth potential difference exceeds the breakdown voltage of theTEC-100, conduction immediately occurs and the earth potentials are equalized. The TEC-100 is a self-restoring device and has a life of over ten thousand operations.