自限温型PTC电热带的性能评价  

Performance evaluation of temperature-limited PTC heating cable

作　　者：罗延龄[1] 

机构地区：[1]中国石油兰州石化公司石油化工研究院,甘肃兰州730060

出　　处：《电线电缆》2001年第6期13-16,19,共5页Wire & Cable

摘　　要：简要介绍了自限温型 PTC(正温度系数 )电热带的结构、工作原理及性能特点 ;重点论述了其作为防冻保温器件的主要性能标准及评价方法 ,为自限温电热带规范化生产提供指导。The construction, work principle and characteristics of the temperature limited PTC(positive temperature coefficient) heating cable are briefly presented. Focus is attached to the method for evaluating the performance of the PTC heating cable as an anti freezing device. The paper provides a guidance for the standard production of temperature limited PTC heating cable.

关 键 词：自限温电热带 性能评价 正温度系数 自控温加热电缆 

分 类 号：TM249.9[一般工业技术—材料科学与工程]