Statistical analysis of particles of conductor clashing

Abstract

Fire ignition as a consequence of conductor clashing has happened in many countries all over the world. These fires can cause severe environmental (forest fires) and financial damage, and even be potential life-threatening. The goal of the article is to describe the processes which occur when two live conductor clash together. The most dangerous product of conductor clashing are particles (sparks), which fall to the ground, while being hot enough to potentially start a fire. Primary, by defining of those sparks we can do the first step which would lead to the answer: “Is conductor clashing the cause of fires?” Conductor clashing was simulated in two environmental conditions. The first one was in a live low voltage electricity distribution network as line-to-line short circuit and the second one was in laboratory conditions. Al/Fe conductors of the same characteristics were used in both simulations. Simulations were recorded with high speed camera. Statistical analysis of particles and their probability density function (PDF) are presented in this paper. PDF calculation may be a part of additional criteria on power system protection adjustment.