保护地线引发特殊短路故障的排除方法  

Removal of the short circuit obstacles caused by the safety ground wire

作　　者：魏国瑞[1] 潘沛[1] 

机构地区：[1]西安建筑科技大学理学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2003年第2期196-197,201,共3页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

摘　　要：论述电子仪器中的保护地线、信号地线各自的作用 .多台仪器组合时二者既可相互独立、又可直接短接使用 ,但是 ,当电子仪器 (在出厂时 )已将二者短接的情况下 ,进行多台仪器组合测试时 ,若连接不当可能引发意想不到的特殊短路现象 ,造成不必要的财产损失 .本文分析了这种特殊短路现象产生的原因 。The function of two different kinds of ground wires (safety ground wire and signal zero reference wire) is discussed. The ground wires can be used independently or directly linked when different instruments are combined together. Once these wires have been shortly linked while the machine manufactured, any improper connection may bring about unexpected 'short circuit' phenomenon resulting in large property losses. The causes of these special short circuit phenomenon as well as the methods to avoid them are presented.

关 键 词：地线 特殊短路 仪器组合 

分 类 号：TU375[建筑科学—结构工程]