Abstract
This paper attempts to investigate the horizontal conductor lightning striking distance estimation.An electromagnetic model was proposed to model a vertical downward lightning leader and aninfinite grounded horizontal conductor by using the charge simulation method (CSM) to calculatethe lateral striking distance. A formula between the lateral striking distance, the lightning current,and the horizontal conductor height was estimated. The proposed formula was compared withelectromagnetic model and previous formulas. By the use of a similar methodology, a horizontalconductor voltage coefficient had been proposed and estimated. The proposed voltage coefficientwas used to modify the electrogeometric model in order to study lightning striking rates of anunshielded horizontal conductor for different heights at either AC or DC voltages.
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