Depending on the area, the general annual lightning frequency in Germany is between 0.5 and 10 lightning strikes per square kilometer. The probability of a direct strike is therefore not very high, however, the occurring damages can be disastrous when no protection is installed. For the external lightning protection, we install systems such as arresting devices, discharge and grounding systems as well as surge protection devices (SPD) for the internal lightning protection. The latter also protects against the direct impact of high voltages if lightning strikes at a distance.