Lightning currents have been measured in towers, overhead lines and artificial mine stations for quite a long time using improved methods around the world. The field measuring station also recorded the electromagnetic interference field of lightning discharge radiation. Based on these findings, lightning has been understood and scientifically defined as a source of interference in terms of existing protection issues. It is also possible to simulate extreme lightning currents in the laboratory. This is also a prerequisite for testing guards, components and equipment. Similarly, lightning interference fields used for testing information technology equipment can be simulated. Because of such extensive basic research and the development of protection concepts, such as the concept of lightning protection areas established according to EMC organization principles, as well as appropriate protection measures and equipment against field-induced and conducted interference caused by lightning discharge, we now have the necessary conditions to protect the system so that the risk of eventual failure is kept extremely low. Thus, it is guaranteed that vital infrastructure can be protected from disaster in the event of severe weather threats. The need for complex EMP-oriented standardization of lightning protection measures, including so-called surge protection measures, has been recognized. The International Electrotechnical Commission (IEC), the European Commission for Electrical Standards (CENELEC) and the National Standards Commission (DIN VDE, VG) are developing standards on the following issues: • Electromagnetic interference of lightning discharge and its statistical distribution, which is the basis for determining interference levels at each protection level. • Risk assessment methods for determining levels of protection. • Lightning discharge measures. • Shielding measures for lightning and electromagnetic fields. • Anti-jamming measures for conductive lightning interference. • Requirements and testing of protective elements. • Protection concepts in the context of an EMC-oriented management plan.  

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Post time: Feb-19-2023