新的！IEC 62153-4-8:20 18作为IEC 62153-4-8:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 62153-4-8:20 18规定了一种测试方法，通过使用三轴装置以与测量传输阻抗类似的方式确定电容耦合导纳、电容耦合阻抗和耦合电容（参见IEC 62153-4-3）。大多数电缆的电容耦合可以忽略不计；然而，在具有松散单编织物的电缆的情况下，通过屏蔽孔的耦合应通过电容耦合导纳的测量来确定。这第二版取消并取代了2006年出版的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a)以与测量传递阻抗类似的方式使用三轴装置(参见IEC 62153-4-3)， b)使用矢量网络分析仪代替电容电桥或脉冲发生器。

NEW!IEC 62153-4-8:2018 is available as IEC 62153-4-8:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62153-4-8:2018 specifies a test method for determining the capacitive coupling admittance, the capacitive coupling impedance and the coupling capacitance by the use of a triaxial set-up in a similar manner as for the measurement of the transfer impedance (see IEC 62153-4-3). Most cables have negligible capacitive coupling; however, in the case of cables with loose single-braids, the coupling through the holes in the screen shall be determined by the measurement of the capacitive coupling admittance. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) use of the triaxial set-up in a similar manner as for the measurement of the transfer impedance (see IEC 62153-4-3),
b) use of vector network analyser instead of capacitance bridge or pulse generator.