摘要
在架空输电线路中,时常出现掉线等现象而引发线路事故,严重影响输电线路的运行安全。经事后处理分析多为耐张线夹和接续管因压接操作不符合相关规程而致,不仅如此,还会产生过热等不正常运行的现象。为杜绝上述事故与现象的发生,文中对压接型金具内部压接状态的检测方法进行了研究,提出射线检测方法可直观、无损的判别压接质量;研制的检测装置适用于施工压接中的检验,更可在空中直接对耐张线夹及接续管的内部压接状态进行非破坏性检验,并已在工程的线路上进行了应用。实现了架空输电线路中耐张线夹和接续管内部压接质量在线检测,在电力系统内杜绝因此类问题引发事故起到了关键的作用。
The operation security of overhead transmission lines is threaten by the disconnection between strain clamp or splicing sleeve and conductor. Violation of related operating regulation is found to be the cause of the accident, and it also leads to abnormal operating conditions, such as overheat. To prevent such accidents and phenomenon, the detection method for the internal crimping state of compression type fittings is investigated. A ray detection method is proposed to detect the internal crimping quality directly. The developed detection device can be applied to detect the internal crimping state of strain clamp and splicing sleeve during construction and in air directly. Furthermore, the device has been applied in transmission lines of some projects successfully. Online crimping quality monitoring of strain clamp and splicing sleeve in overhead transmission lines is realized. The method can also play an important role in preventing related accidents in the power system.
出处
《江苏电机工程》
2015年第2期65-68,共4页
Jiangsu Electrical Engineering
关键词
压接型金具
内部压接状态
压接质量
射线检测
耐张线夹
接续管
compression joint type fittings
internal crimping state
crimping quality
ray detect
strain clamp
splicing sleeve
