标准摘要
[中文适用范围]： IEC 62153 的这一部分描述了一种方法，用于分别根据 IEC 62153-4-3（方法 B）使用三轴装置进行测量时，将传输阻抗测试结果外推至较高频率，并将屏蔽衰减测试结果外推至较低频率IEC 62153-4-4。 IEC 61196-1:1995 第 12.2 条中已经描述了将传输阻抗测试结果外推到更高频率的类似方法。该方法适用于同质屏幕，即具有与长度成正比的传输阻抗的屏幕。传输阻抗可以具有任何频率行为，即它可以具有不以每十倍频程20dB增加的行为，如对于由箔和编织物制成的屏幕所观察到的。 [外文原描述]： IEC 62153-4-16:2016(E) describes a method to extrapolate the test results of transfer impedance to higher frequencies and the test results of screening attenuation to lower frequencies when measured with the triaxial set-up according to IEC 62153-4-3 (method B) respectively IEC 62153-4-4. A similar approach to extrapolate the test results of transfer impedance to higher frequencies was already described in IEC 61196-1:1995 Subclause 12.2. This method is applicable for homogenous screens, i.e. screens having a transfer impedance directly proportional to length. The transfer impedance may have any frequency behaviour, i.e. it could have a behaviour where it does not increase with 20 dB per decade as observed for screens made of a foil and a braid.
英文名称Metallic communication cable test methods - Part 4-16: Electromagnetic compatibility (EMC) - Extension of the frequency range to higher frequencies for transfer impedance and to lower frequencies for screening attenuation measurements using the triaxial set-up