Measurement and modeling of transfer functions for lightning coupling into the Sago mine.

Morris, Marvin E. ; Higgins, Matthew B.

Sandia National Laboratories

关键词: Electromagnetic Fields;    01 Coal, Lignite, And Peat;    Lightning;    Coal Mines And Mining-Research.;    Mines;   

DOI  :  10.2172/908077
RP-ID  :  SAND2006-7976
RP-ID  :  AC04-94AL85000
RP-ID  :  908077

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report documents measurements and analytical modeling of electromagnetic transfer functions to quantify the ability of cloud-to-ground lightning strokes (including horizontal arc-channel components) to couple electromagnetic energy into the Sago mine located near Buckhannon, WV. Two coupling mechanisms were measured: direct and indirect drive. These transfer functions are then used to predict electric fields within the mine and induced voltages on conductors that were left abandoned in the sealed area of the Sago mine.