Selection aid, external lightning protection

Necessity for a lightning protection system

Every year, lightning strikes put at risk – or cause harm to – people, animals and property. The amount of property damage with a high volume of damage is increasing continuously. This fact alone emphasises the importance of lightning protection systems. Building regulations mean that it is a legal requirement today that people must be protected against the impacts of lightning strikes.  The infrastructure necessary for the execution of the work of public agencies, such as the police, ambulance and fire services, is also particularly worthy of protection.

Using the current standards as a basis, it is possible to determine whether a lightning protection system is necessary and how it must be designed. A determination of the economic viability can also be helpful when deciding for or against a lightning protection system. What costs are incurred if there is a possible lightning strike in a system without lightning protection, and, by contrast, how high are the investments in a lightning protection system?

The latest standards of the series VDE 0185-305 Part 1-4 (IEC 62305-1...-4) and the national supplementary sheets explain in technical terms how protective measures should be executed. Specialised components for lightning protection according to VDE 0185-561-1 (IEC 62561-1) are required for installing a lightning protection system.

Note: Lightning protection equipotential bonding is an essential part of a complete lightning protection system. Besides suitable equipotential busbars (H/N), this also contains surge protection devices for the power supplies (type 1) and data, telecommunications, TV and MSR systems (D1).

Our free "External lightning protection selection aid" shows you how to combine the right components to create an efficient lightning protection system:

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