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通信电缆的金属护层不仅具有一定的机械性能、密封性能和防腐蚀性能,而且具有一定的屏芘外界电场、磁场干扰的性能·计算和测量通信电缆各种金属护层屏芘特性对通信电缆线路防护强电线、电气化铁道和无线电台的干扰具有重要的意义。本文将根据最近与有关单位同志在该方面所做的工作情况,主要对屏芘系数的测量方法和理论计算方法作以下介绍,并扼要介绍了八种型号、规格电缆的屏芘系数,供生产单位和使用单位参考。
Communication cable metal sheath not only has a certain mechanical properties, sealing performance and corrosion resistance, but also has a certain screen P pyrene external electric field, the magnetic field interference performance Calculation and measurement of communication cables various metal shield Ppy characteristics of communication cables Interference of line protection of strong wires, electrified railways and radio stations is of great significance. This article will be based on the work done recently with the comrades in the field in this area, mainly on the measurement method and the theoretical calculation of the screen pyrene coefficient for the following description, and briefly describes the eight models, the specifications of the cable screen pyrene coefficient for production Unit and the use of units for reference.