跌落式智能开关用熔断材料特性分析及应用效果

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中图分类号：TQ323.5 文献标志码：A 文章编号：1001-5922（2025）05-0108-04

Abstract：Inorder to further improve theinsulationperformanceof theswitch fuse material，amodifiedcomposite insulation material was prepared by introducing nano-aluminaand nano-boron nitride，and its insulation performance，mechanical properties and application effect were verified.The results show that the modified composite insulation material prepared byintroducing nano-alumina and nano-boron nitride has stronger insulation performance. The volume resistivity，partial discharge onset voltage and breakdown field strength are increased by 32. 12% ， 12.12% and 7.05% ，respectively ，compared with the unmodified composite insulation material. The composite insulationmaterial has better tensile debonding strength and tensile shear strength.When thecomposite insulation material isusedasthe fusing material of the drop switch，it shows better insulation performance.The modifiedcomposite insulation material prepared by has good insulation and mechanical properties，andcan be used as afusing material for drop switches.

Keywords：switch fuse material；nanoparticles；material modification；insulation performance；coupling treatmen

当前，引入纳米粒子对材料进行改性是增强复合材料绝缘性的常用方式之一，随着当前生产生活中用电需求的不断增加以及用电场景十分复杂，对熔断式开关的性能提出了更高要求。（剩余5898字）