標準號：IEC 62153-4-9-2008
中文標準名稱：金屬通信電纜試驗方法.第4-9部分:電磁兼容性(EMC).用三維法測量屏蔽的平衡電纜的耦合衰減
英文標準名稱：Metallic communication cable test methods - Part 4-9: Electromagnetic compatibility (EMC) - Coupling attenuation of screened ballanced cables, triaxial method
標準類型：K13
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：K13
國際標準分類號：33.100;33.120.10
引用標準：IEC 60050-726;IEC/TR 62153-4-1;IEC 62153-4-5
適用范圍：This part of IEC 62153 applies to metallic communication cables. It specifies a test method for determining the coupling attenuation aC of screened balanced cables. Due to the concentric outer tube, measurements are independent of irregularities on the circumference and external electromagnetic fields. A wide dynamic and 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. However, the upper frequency is limited by the properties of the baluns. The procedure to measure the coupling attenuation aC is based on the procedure to measure the screening attenuation aS according to IEC 62153-4-5.