IEC 62153-4-4:2015 金属通信电缆测试方法 - 第4-4部分:电磁兼容性（Emc） - 用于测量截止至3 Ghz以上的筛选衰减的测试方法 三轴法

标准编号：IEC 62153-4-4:2015

中文名称：金属通信电缆测试方法 - 第4-4部分:电磁兼容性（Emc） - 用于测量截止至3 Ghz以上的筛选衰减的测试方法 三轴法

英文名称：Metallic communication cable test methods - Part 4-4: Electromagnetic compatibility (EMC) - Test method for measuring of the screening attenuation as up to and above 3 GHz, triaxial method

发布日期：2015-04-29

标准范围

IEC 62153-4-4:20 15(E)描述了确定金属通信电缆屏蔽的屏蔽衰减的测试方法。由于同心外管，测量与圆周上的不规则性和外部电磁场无关。宽动态频率范围可用于使用正常仪器测试超屏蔽电缆，从低频到外部电路中定义的横波极限（约4 GHz）。第二版取消并取代了2006年出版的第一版，构成了技术修订。与上一版相比，此版本包括以下重大技术变更:-当测量设备的特性阻抗不同于测试设备的特性阻抗时，不再需要阻抗匹配适配器；-由(计算的)校正因子考虑由于失配引起的反射损耗。

IEC 62153-4-4:2015(E) describes a test method to determine the screening attenuation as of metallic communication cable screens. Due to the concentric outer tube, measurements are independent of irregularities on the circumference and outer electromagnetic field.A wide dynamic frequency range can be applied to test even super-screened cables with normal instrumentation from low frequencies up to the limit of defined transversal waves in the outer circuit at approximately 4 GHz. This second edition cancels and replaces the first edition, published in 2006 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Impedance matching adapters are no longer required when measuring devices have a characteristic impedance different from the characteristic impedance of the test equipment;
- The reflection loss due to a mismatch is taken into account by a (calculated) correction factor.

标准预览图