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2025 Vol.21, Issue 2 Preview Page

Original Article

30 June 2025. pp. 390-410
Abstract
Purpose: This study purposes to analyze the factors affecting the arc rating of personal protective equipment and the effect of these factors on the determination of arc thermal performance value(ATPV) in arc flash tests. Method: Partial least squares structural equation modeling (PLS-SEM) method was used to simplify the complex relationships among individual variables such as environmental conditions(Duration Time, Duration Cycle), electrical conditions(ARC Voltage, Current Total RMS), and peak conditions(ARC Voltage Peak, Peak Current), and to group them into high-dimensional secondary latent variables to increase the validity of the concept and clearly verify the research hypothesis. Result: ARC energy acts as an important parameter affecting the Heat Attenuation Factor(HAF), Stoll Curve Deviation(SCD), and ultimately the ATPV. Among the relationships among the examined variables, the incident energy showed a moderating effect between ARC Energy and ATPV, and it was confirmed that the incident energy had an indirect effect through the interaction of ARC energy and HAF and SCD in determining the ATPV value. Conclusion: The need for continuous technological development of PPE to protect workers from arc flash and prediction of arc flash accidents is raised, and furthermore, it is suggested that selection of appropriate PPE, continuous safety education, and establishment of a solid safety culture are essential for the safety of workers in industrial sites.
연구목적: 본 연구는 개인보호장비의 아크등급에 영향을 미치는 요인과 이러한 요인이 아크 플래시 테스트에서 아크열적 성능값(ATPV) 결정에 미치는 영향을 분석하는 것을 목표로 한다. 연구방법: 부분최소제곱 구조방정식 모델링(PLS-SEM)의 연구방법을 사용하여 환경 조건(Duration Time, Duration Cycle), 전기 조건(ARC Voltage, Current Total RMS), 피크 조건(ARC Voltage Peak, Peak Current)과 같은 개별 변수간의 복잡한 관계를 단순화 하고 개념의 타당성을 높이며 연구가설을 명확하게 검증하기 위하여 고차원의 이차 잠재 변수로 그룹화하여 연구의 타당성을 높이고 연구가설을 명확히 하였다. 연구결과: ARC 에너지는 HAF(Heat Attenuation Factor), SCD(Stoll Curve Deviation), 궁극적으로 ATPV에 영향을 미치는 중요한 매개 변수로 작용한다는 것이 확인되었다. 검토된 변수들 간의 관계 중에서 입사에너지(Incident Energy)는 ARC Energy와 ATPV 사이에서 조절 효과를 보였으며, ARC 에너지가 HAF와 SCD를 통해서 ATPV 등급을 결정하는데 입사에너지가 상호작용을 통한 간접적인 영향을 확인하였다. 결론: 아크 플래시로부터 작업자를 보호를 위한 PPE의 지속적인 기술개발과 아크플래시 사고예측의 필요성을 제기하고 있으며, 더 나아가 산업현장에서 근로자의 안전을 위해 적절한 PPE의 선택과 지속적 안전교육, 견고한 안전문화의 확립이 필수적임을 제안한다.
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Information
  • Publisher :The Korean Society of Disaster Information
  • Publisher(Ko) :한국재난정보학회
  • Journal Title :Journal of the Society of Disaster Information
  • Journal Title(Ko) :한국재난정보학회논문집
  • Volume : 21
  • No :2
  • Pages :390-410