标准摘要
[中文适用范围]： IEC 62153 的这一部分通过向电缆屏蔽层施加明确定义的电流和电压并测量感应电压以确定表面传输阻抗来确定电缆屏蔽层的屏蔽有效性。该测试仅测量传输阻抗的磁性分量。注：静电分量（电容耦合阻抗）的测量在 IEC 62153-4-8 [1]2 中描述。三轴测量方法通常适用于 1 m 样品长度高达 30 MHz 的频率范围，以及 0@3 m 样品长度 @ 高达 100 MHz 的频率范围，这对应于小于约 1/6 的电气长度。样品中的波长。 2 方括号中的数字指的是参考书目。 [外文原描述]： IEC 62153-4-3:2013(E) determines the screening effectiveness of a cable shield by applying a well-defined current and voltage to the screen of the cable and measuring the induced voltage in order to determine the surface transfer impedance. This test measures only the magnetic component of the transfer impedance. 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: - now three different test configurations are described; - formulas to calculate the maximum frequency up to which the different test configurations can be used are included; - the effect of ground loops is described.
英文名称Metallic communication cable test methods - Part 4-3: Electromagnetic compatibility (EMC) - Surface transfer impedance - Triaxial method