Risk analysis in the design of lightning protection system according to HRN EN 62305

Diplomski rad obrađuje analizu rizika pri projektiranju sustava zaštite od munje primjenom norme HRN EN 62305. U radu je iznesen postupak proračuna rizika pri udaru munja u građevinu koja se planira zaštititi i opskrbni vod povezan na građevinu ili pri udaru munja pokraj promatrane građevine i pokraj opskrbnog voda, a u svrhu određivanja potrebe za zaštitnim mjerama. Postupak proračuna uključuje procjenu godišnjeg broja opasnih događaja, procjenu vjerojatnosti nastanka štete te procjenu iznosa gubitaka. Navedeni postupak proračuna i analiza rizika provedeni su na primjeru poslovne zgrade. Zaključak o nužnosti postavljanja sustava zaštite od munja temelji se na usporedbi dobivenih rezultata rizika s prihvatljivim vrijednostima rizika navedenim u HRN EN 62305.The thesis discusses the risk analysis in the design of lightning protection system using the standard HRN EN 62305. It presents the risk estimation procedure in case of lightning strikes to or near the structure to be protected and the service line connected to the mentioned structure, to determine the need for protective measures. This procedure includes the following assessments: the annual number of dangerous events, the probability of damage, and the amount of loss. The above estimation procedure and risk analysis were used on the example of an office building. Conclusion on the necessity of a lightning protection system is based on the comparison of the calculated risk values with the tolerable risk values according to HRN EN 62305