一种用电容法测大线断点的方法

在野外施工中，大线断点的判断是大线维修中尤为突出的问题。电容法测大线断点位置是一种早期用来测试模拟电缆断点的常用方法，用它测试数字电缆也同样有效。虽然它的测试误差较大，但在工地没有大线探伤仪等仪器的情况下，用电容法能及时找出大线断点，有利于及时维修或更换，保证生产进度。

A method for using capacitance method to locate breakdown point of cable

During field operation,the judge of breakdown point of cable is prominent problem in cable maintenance.Using capacitance method to locate the breakdown position of cable is common method that measured breakdown point of analog cable before,which can also be effective to locate digital cable.Using capacitance method can find the breakdown position of cable in time in a condition of without flaw detector of cable in field,which is of benefit to be repaired of changed in order of guarantee the successful production although the larger measured errors exist.