BS EN 62153-4-7:2006 金属通信电缆试验方法.电磁兼容性(EMC).测量传输阻抗和滤屏或耦合衰减的试验方法.套管方法
Metallic communication cables test methods - Electromagnetic compatibility (EMC) - Test method for measuring the transfer impedance and the screening, or the coupling attenuation - Tube in tube method