INTERNAL LIGHTNING CONDUCTOR SYSTEMS What Is Instantaneous Overvoltage and How Is It Formed?Instantaneous overvoltages (impulse voltages) are those that appear within a few microseconds (micro 1/100,000) and a few milliseconds (milli 1/1000) with a magnitude varying between 5 to 10KV. Voltages...What Are Lightning-Induced Overvoltages?Lightning is mostly known for the direct damage it causes as a naturally occurring event that generally leads to physical damage and fire. However, there are many reasons to take precautions against the...Other Factors Causing Overvoltagesa) Electrical Switching Incidents Instantaneous voltages causing electrical switching incidents are very common and considered a significant interference source. The current flowing through a conductor...Problems Caused by OvervoltagesProblems occur in three stages depending on the magnitude of the incoming overvoltage. a) Failure Although no physical damage occurs, data loss and unexplained computer freezing is experienced...Overvoltage Protectors and their Operating PrinciplesInternal lightning conductors=overvoltage protectors connected between phases and the ground, and neutral loads and the ground in low voltage systems, switch to conduction in case of an impact and absorb...What Happens If An Overvoltage Protector Is Not Used?The potential problems that can be encountered in the absence of an overvoltage protector are as follows. • Leakage of toxic substances as a result of halted measuring-control systems in chemical...Real-Life CasesDamages resulting from overvoltage saw a great increase in the 1980s. This was attributed to the increasing use of more sensitive electronic measurement, control and communication devices in both industry...Where to Start?We’ll examine your facility and check the grounding system. The ground resistance is measured and if the ground resistance is above the standards, an additional grounding is performed. We’ll recommend...Installation of Overvoltage Protection ProductsA multi-stage protection approach to DIN-IEC norms is planned against instantaneous overvoltage. According to this approach, each stage reduces the impulse voltage to an extent, and makes it harmless for...Protection Areas and Additional MeasuresLPZ OA: An area where there is a threat of a direct lightning strike and full lightning magnetic field. Internal systems could be exposed to the whole or a part of the lightning shock wave current. ...