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Kutsenko Sergey,Klimov Nikolay,Pavlova Lyudmila,이재호 한국철도학회 2021 한국철도학회논문집 Vol.24 No.5
The article deals with the detection of metals in localities of dendrites in internal cavities of porcelain insulators that have been in operation on railway for a long time and exposed to high voltage of DC and AC contact network. The search for dendrites was carried out using a megohmmeter generating high voltage. Research in the vicinity of the detected conducting channels was performed using an electron-probe microanalyzer. Possible mechanisms of dendrite formation are considered.