Electrical Protection Against Abnormal Temperature Rising by Using Temperature Monitoring Device-A Case Study of Tracking

• Main Authors: LIU, SHI-HAO, 劉士豪
• Other Authors: CHENG, SHYH-YUEH
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/sawnw5

碩士 === 嘉南藥理大學 === 職業安全衛生系 === 105 === In order to reduce the incidence rate of electric fire effectively, the study aims to investigate how to effectively control the continuously abnormal temperature rise that may cause to electric fire when deposit electric conduction occurs. By examining the domestic laws and regulations, recent patent-related inventions, and relevant literature studies, and coordinating with the experiment of deposit electric conduction, investigation of control as well as warning effectiveness of the temperature control device with forewarning and protecting function when deposit electric conduction occurs is conducted in this study. By reviewing the domestic laws and regulation, it is found that regulations about prevention measurement for deposit electric conduction is very rare; in other words, the study discovers that there is room for improvement to the domestic laws and regulations of electrical safety. The objective of the study is firstly to investigate the optimum temperature control of deposit electric conduction that is caused by the dust and then to proceed the simulation experiment of deposit electric conduction by applying dust as the medium in order to discuss the phenomenon of deposit electric conduction; following with application of the temperature control device with forewarning and protecting function to control the abnormal temperature rise in the circuits. In accordance with the experiment method of Japan JIS C 8303 on the plug and socket heating-up, and after analysis and investigation on the control temperature points under various condition of deposit electric conduction, the study discovers that the electrolyte can easily cause to vigorous reaction to the deposit electric conduction while the other water-content mediums reacted under the mild condition; the temperature of the system is also heated up by gradual heat accumulation. Although the plug and socket are not under burning condition, the heat may cause to fire while the combustible materials in the surroundings start to burn. The response time of the vigorous deposit electric conduction is short, however, it may melt the materials of the plug and socket which may easily lead to the short-circuit of the wires in the long term. Consequently, it is important to clean the plug and socket regularly and coordinate with effective warning as well as protecting device for secure and safe life.The results of this research could serve as references for the design as well as the manufacturing-related protection installment for the industry in order to not only set up the accurate methods to prevent from deposit electric conduction but also correct the habits of using the electrical appliances.