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정수기용 압축기의 안전성 평가 및 소손 패턴 분석에 관한 연구
최충석 ( Chung Seng Choi ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.2
The purpose of this study is to provide basic data for the safety assessment of a water purifier when water leaks due to inappropriate maintenance and the examination of the cause of accidents related to the leak. Due to its inspection and management by non-specialists, if a leak occurs in a water purifier with the water level controller being inclined, it may result in the failure of the compressor, power supply line, PCB, etc. The analysis of the thermal diffusion pattern of water purifier compressors using a thermal image camera shows that its maximum temperature was approximately 80oC. In addition, its operating current was a maximum of 13 A and the system`s operating current was approximately 1.7 A after the compressor was charged. It was found that the housing type power cable cover of the compressor had the effect of preventing electric shock but has poor flame resistance. Furthermore, the performance of the overload protector, PTC relays, etc., was excellent but they have potential for problems as metallic terminals were exposed, resulting in the potential of a safety related accident. The terminals and their surface damaged by the tracking showed a trace of carbonization and the resistance between terminals was measured to be approximately 8 Ω. In addition, while the tracking was proceeding, the fuse and circuit breaker installed for system protection did not operate.
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