EVA沿面放電における消弧点近傍の電子密度の測定

概要

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Abstract As for the lightning protection measure in Japan, overhead ground wires and lightning protection devices, i.e. lightning arresters, are in general use together. However, even if such a measure was implemented, the power failure has still occurred. Therefore, development of the low cost lightning protection device that can be installed in all poles is desired. A tubular type creeping discharge arrester was proposed by Kyushu Electric Power Co., Inc. and evaluation of the electrical performance has been performed. The aim of this research is to clarify the arc extinction mechanism of the tubular type arrester using an EVA (ethylene vinyl acetate) resin as a tube material. We measured the electron density and temperature near the arc extinction of the creeping discharge on the surface of EVA plate with the laser Thomson scattering method.
宮崎大学の論文