一种新型二次芯线隔离工具的研制

Development of a New Type of Secondary Core Wire Isolated Tool

二次回路芯线拆除后,主要采用红色绝缘胶布对裸露的芯线进行包扎处理,隔离工具存在效率低、不规范、不安全等问题。提出嵌套式、布袋式及夹式的芯线隔离工具等三种方式,从绝缘可靠性、现场操作性、阻燃性、开发难度、价格成本、综合评价等方面进行对比分析后,选取了嵌套式的方案,并从材料、样式、尺寸等方面进行详细地设计,实际应用表明,新型隔离工具大大缩短了现场二次芯线隔离的时间,降低了安全隔离工作的脱落率,提高了现场二次安措的可靠性。

After demolition of the secondary circuit core wire, the red insulating tape was adopted mainly to carry out bandage treatment for the uncovered core wire. There existed inefficient, irregular and unsafe problems in isolated tool. This paper proposed three kinds of core wire isolated tools including embed, hop-pocketed and clipped modes. Comparison and analysis were made from the aspects of isolated reli-ability, site operability, fire resistance, developed difficulty, price cost and comprehensive assessment. This paper selected the embed mode as the scheme and designed the material, style and size in detail. The practical application shows that this new type of isolated tool shortens the time of site secondary core wire isolation, reduces the expulsion rate and raises the reliability of secondary safety precaution.