Ltd. "Demasi" - Lightning Protection

Customer: Ltd. “Demasi”

The project was ordered on November 16, 2018.

The project was successfully completed in January 2019.

Currently, buildings and structures are protected from direct lightning strikes using lightning arresters of various modifications.
Lightning tends to selectively strike grounded (electrical conductivity tends to infinity) and metal objects towering above the earth's surface. The protective effect of each type of lightning conductor is based on this particular lightning discharge feature.
A lightning conductor is a device towering above the protected object, which receives a direct lightning strike and diverts lightning currents (by means of a specific grounding system) to the ground. Regardless of the type, each lightning conductor consists of the following main elements : air receiver 1, which directly receives a direct lightning strike; supporting structure 2, intended for the installation of an air-termination; current collector 3, which ensures the removal of lightning current to the ground; grounding 4, diverting the current of lightning into the ground and providing contact with the ground lightning rod and current lead.
In modern practice, lightning protection uses the following types of lightning conductors: rod ; cable or antenna  and mesh . In addition, in some cases, combined types of lightning arresters (for example, cable-rod, ) are used for complex protection of structures.
Due to the simplicity of manufacture and low cost, rod lightning rods are most widely used, providing high reliability in operation.
Although the lightning rods are not inferior to the core ones in their economic performance, in terms of operation, they are less reliable and are used only to protect very long objects.
Mesh lightning conductors with a fairly high degree of reliability, are widely used in the protection of buildings of category III. In some cases, according to their economic indicators (relatively low metal consumption, lack of reinforced concrete structures, ease of manufacture, installation and operation) surpass rod and cable lightning rods and can be used to protect structures I and II categories, when using rod or cable lightning rods one reason or another is unacceptable (for example, with a significant height of the protected object).
Depending on the design features and purpose of the protected object, as well as local conditions, rod and cable lightning conductors can be performed both separately and installed on the protected structure.