The lightning protection of buildings includes lightning protection system and lightning electromagnetic pulse protection system. The lightning protection system consists of external lightning protection device and internal lightning protection device.   1. At the basement or ground floor of the building, the following objects should be connected to the lightning protection device for lightning protection equipotential bonding:   1. Building metal components 2. Exposed conductive parts of electrical installations 3. In-building wiring system 4. Metal pipes to and from buildings   2. The lightning protection design of buildings should investigate the geological, landform, meteorological, environmental and other conditions, the law of lightning activities, and the characteristics of the protected objects, etc., and take lightning protection measures according to local conditions to prevent or reduce the personal casualties and property caused by lightning strikes on buildings. damage, as well as damage and faulty operation of the Shenqi and Shen subsystems caused by the Rayshen EMP.   3. Lightning protection of new buildings should use conductors such as steel bars in metal structures and reinforced concrete structures as lightning protection devices, and cooperate with relevant majors according to the building and structural form.   4. Lightning protection of buildings should not use air-terminations with radioactive substances   5. The calculation of the expected number of lightning strikes in a building shall comply with relevant regulations, and the annual average number of thunderstorm days shall be determined according to the data of the local meteorological station (station).   6. For buildings of 250m and above, the technical requirements for lightning protection should be improved.   7. The lightning protection design of civil buildings shall comply with the provisions of the current national standards.

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Post time: Apr-13-2022