![]() ![]() Depending on the type of air terminal, the external lightning protection system can be active (in the form of ESE lightning rod) or passive (lightning rod, catenary wire or mesh cage). Air terminalĪir terminal is a device designed to intercept the lightning strike. Let's start with the fact that any external lightning protection system consists of three main elements: air terminal, down conductor and grounding. If the installation of a lightning protection system for a single-family house made of noncombustible materials is quite a clear task, the lightning protection of wooden building has a number of distinctive features. ![]() External lightning protection of wooden buildings ![]() To effectively protect the house from possible damage, it is necessary to apply the comprehensive measures of lightning protection. Therefore, lightning protection is especially important for them and should be carried out in a mandatory manner. Wooden houses, due to their inflammability, are a source of higher risk. The need for the installation of a lightning protection system is determined by the owner of the house on his or her own, based on the probability of a lightning strike and possible damage to the property. This means that, unfortunately, regulations do not require the mandatory installation of lightning protection for these types of structures. Single-family houses belong to the third category of structures according to the RD Instructions, and to the "usual" category according to SO. The need for the lightning protection of objects is determined by attributing them to the categories in accordance with the RD 34.21.122-87 "Instructions for the lightning protection of buildings and structures" (hereinafter RD) and SO 153-34.21.122-2003 "Instructions for the lightning protection of buildings, structures and industrial communications"(hereinafter SO). The secondary lightning hazard includes powerful electromagnetic pulses that cause the failure of internal systems and damage various electric equipment. A direct lightning strike into an object leads to its mechanical failure, fire, explosion, and electric shock to people and animals. The lightning strike is considered one of the most dangerous natural phenomena, a destructive force that cannot be underestimated. ![]()
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