B. Hutzler

TL;DR: An experimental station for research on lightning and lightning effects was built in the Massif Central (France) in 1973 as discussed by the authors, where the experimental procedure is an application of artificial triggering of lightning flashes by means of the wire and rocket technique, which has previously been shown to be valid by M. M NEWMAN.

TL;DR: In this article, the breakdown voltage of an air gap submitted to switching surges may be determined by using a mathematical model of leader propagation, which is applied to point plane gaps, for which a number of experimental results are available.

Abstract: The influence of the different phases of the discharge on the statistics of the breakdown processes has been investigated in a wide range of gap lengths (from 2 to 10 m) and applied voltage levels. The effect of the field distribution, along the gap and of the overvoltage ratio upon the development of each discharge phase, has been studied and the transition between subsequent phases has been analysed. The experimental results have been compared with theoretical predictions; the satisfactory agreement, which has been obtained indicates that the theoretical simulation of the discharge phenomena is relatively advanced and starts to be useful from a engineering point of view.

TL;DR: In this article, an analytical and physical study of phase-to-phase strength based on experiments carried out at Renardieres is presented, and the results of the analysis are presented.

TL;DR: In this article, the behavior of a 4 m rod-plane air gap subjected to non-standard waveshapes has been studied and bumps of different amplitudes and shapes are superimposed on various basic impulses.