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Experimental Research on Impulse Breakdown Characteristics of Soil  

Lee, Jaebok (Electrical Environment & Transmission Group, Korea Electrotechnology Research Institute)
Sughun Chang (Electrical Environment & Transmission Group, Korea Electrotechnology Research Institute)
Sungho Myung (Electrical Environment & Transmission Group, Korea Electrotechnology Research Institute)
Yuengue Cho (Electrical Environment & Transmission Group, Korea Electrotechnology Research Institute)
Publication Information
KIEE International Transactions on Electrophysics and Applications / v.4C, no.2, 2004 , pp. 60-63 More about this Journal
Abstract
The electrical breakdown characteristics of different types of soil samples have been measured. It is shown that the threshold soil breakdown strength is affected by many factors, such as types of soil, grain size, and soil compaction. The breakdown process in the test soil samples appears to be due to air ionization in the voids between the soil particles. The results have been compared with the relevant experimental results of other researchers.
Keywords
Grounding resistance; Ionization; Lightning; Soil breakdown; Threshold breakdown strength;
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