The Electric Field Effect on Angles of Copper-type Down-conductor

摘要

This paper is to study the effect of electric field on angles variation of copper down-conductor due to voltage and current transient. Down-conductor which in forms of numerous material, shape and dimension are mandatorily for diverting the lightning current from air termination system to the grounding system in sheltered building. Hence, a numerical analysis method is applied emulating the comprehensible and particular model according to ordinarily used of manufacturer's datasheet specification. A rigorous assessment in term of electric fields was reviewed in comparison with the critical breakdown value of air for a crucial study. Later, a foremost angle is proposed for the installation of down-conductor in order to achieve a reliable protection system.