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(A) Mechanism of the electric arc injury from the 20 kV medium-voltage switchgear at inspection. (B) Light-arc and electric discharge-induced damage marks in the switchgear. (C,D) Lichtenberg figures on the right flank. (E,F) Second-degree dermal burns involving right arm, lower back and buttocks. (G,H) Burn wounds on right arm, lower back and buttocks after 3 days. Lichtenberg figures not present.
