인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
This study investigates electric shock accidents involving non-standard electric welders manufactured by modifying microwave oven transformers, a trend that has been increasingly observed in DIY(do it yourself) high-voltage equipment usage. Two fatal electric shock incidents were analyzed, both of which involved welders lacking basic electrical safety designs such as insulation and protective circuits. These structural deficiencies were identified as the primary causes of the accidents. Experimental measurements revealed that the open-circuit voltage at the secondary side of the modified welders exceeded 2,000V, far surpassing the safety limit of 95 V specified in KS C 9602:2007. Simulations of human body resistance, using enamel resistors ranging from 1kΩ to 5kΩ, demonstrated that the current varied with resistance. Notably, at 1kΩ-a representative value for human body resistance under moist or conductive conditions—an alarming 1.2 A of current was recorded. The victims’ hands showed severe burns and carbonization, indicative of sustained high current flow through body tissues. This study proposes institutional enhancements in safety regulations and distribution control measures. The findings provide foundational data for the establishment of effective safety management systems to prevent severe electrical accidents associated with unauthorized high-voltage equipment.
본문·목차
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