Lightning protection design of a building

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Dr. Szedenik Norbert
Department of Electric Power Engineering

The purpose of my thesis was to get familiar with the first and second edition of the MSZ EN 62305 lightning protection standard and its usage, to make risk assessments according to the first and second edition and also to gain experience in designing lightning protection systems.

I have started to work at the designing office of UVATERV ZRT during my studies as a designer engineer trainee. I built my thesis on my professional experiences acquired at UVATERV ZRT and at numerous courses of the university.

Nowadays everyone has to work quickly and accurately. It is true for designers, as well. This phenomenon contains a contradiction that the Hungarian proverb words like this: “For good work time is needed”. With the development of information technology, more opportunities arised to increase the efficiency of designing work. New softwares appeared on the market aiding professional drawing and calculations. Designers who do not use any of these designing programs for their work, can not be fast and effective enough, which will shortly put them at disadvantage in their profession.

I learnt how to use two lightning protection manager programs during my designing work. One of these is the ViKoP 2014 program from OBO Bettermann company, the other one is the DEHNsupport Toolbox from Dehn und Söhne company. I learnt the correct usage of the latter one at professional courses and I used this program in my thesis.

After having familiarised with the lighting protection standard, I pointed out some of its weaknesses and its partially problematic interpretation.

I made two risk assessments according to the first and second edition of the standard for a fictional multifunctional aircraft hangar bay with an office and a workshop building part. My chosen task became even more complex by the extensive explosive zone in the hangar bay, which was created by the aircraft, its 1,5 m wide bubble-like environment and the space spreading from the ground up until 0,5 m highness. I examined how to break down the building into zones and belts based on the standard to be technically correct with a proper use. I evaluated the appearing risks, then I chose upgraded protection measures and optimized them with having cost efficiency, security and technical correctness in my mind.

In the end, I evaluated and compared the results. Finally, I designed the outdoor lightning protection system of the building according to the results of the risk assessments.


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