中山大学学报（自然科学版）Issue(2)：1-7,7.DOI:10.13471/j.cnki.acta.snus.2015.02.001
电气火灾中的电弧熔痕特征与外热关系
The Relationship Between the Melted Mark of Short Circuited Arc and External Heat in Electrical Fire
摘要
Abstract
With the help of the powder X-ray diffraction,scanning electron microscope and energy dis-persive spectroscopy,the PSM and SSM were studied to develop the quantitative analyses and demonstrate the relationship between the phase transition of copper melted mark the external heat condition in electri-cal fire.It is found that it is different for the trend of the grain size with the heat treatment time between PSM and SSM,and the curves of the texture coefficient with the heat treatment temperature between PSM and SSM shows the respective trend obviously.The chemical composition,included mainly carbon,oxy-gen and copper.The ratios of oxygen for the PSM is about 6%,and the ratio of oxygen for the SSM is a-bout 3%in deposition layer.The atomic ratio of oxygen has not changed very much basically in the mel-ted mark substrate,and it is at around 3% both PSM and SSM.The external heat has a different influ-ence on phase transition of PSM and SSM,and the microstructure could reveal clearly,therefore,it is possible to set up the quantitative analyses for short circuit melted mark.关键词
火灾/短路/熔痕Key words
fire/melted mark/short circuit分类
矿业与冶金引用本文复制引用
王莉,方仕童,余圣辉,梁栋..电气火灾中的电弧熔痕特征与外热关系[J].中山大学学报（自然科学版）,2015,(2):1-7,7.基金项目
广东省科技计划资助项目（2010A060801010）；广东省消防科学技术重点实验室开放基金资助项目 （）
