Uwzględnienie rejestracji wyładowań atmosferycznych w projektowaniu ochrony odgromowej

The paper deals with systems as well as initiated results of lightning detection in Poland. Basic results of the presentation are general characteristics of the LINET system. One of its sensors has been installed in Gdańsk University of Technology. Lightning current parameters obtained using present methods have been compared with those obtained about a half century ago with classic methods. Problems to be taken into consideration refer to both surface density of lightning strokes and their current amplitudes.

Accounts carried out on base of data from the LINET system indicate, that a number of lightning strokes on square kilometer on north from the parallel of 51,30^o in 2007 – 2012 years is included in a range from 1,5 to 1,9. These results are consistent with the value adopted in the standardization regulations - 1.8 / km². On south from the parallel of 51,30^o discharge density calculated in the same way is included in a range from 3.0 to 3.4 and it gives an average value of 3.2 / km² exceeding by almost 30% normalized data (2.5 / km²).

Presented results indicate, that a surface density of lightnings seems to be higher than that obtained by classic methods and their amplitudes seem to be lower in comparison to those evaluated in previous century and introduced to standard regulations. Lightning flash localization and detection results can have an influence on lightning protection system design methods in future.

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