通信电缆屏蔽层损坏导致设备辐射发射超限的分析与完善

Analysis and improvement of radiation emission exceeding standard caused by damage of cable shield

本文通过一个辐射发射测试实例,对受试设备辐射发射水平过高问题进行了具体分析,找到辐射发射超限的主要原因是,通信电缆屏蔽层的破损导致传输信号高次谐波的泄漏。最终通过对通信电缆的整改使受试设备满足了中国船级社的标准要求。

Though the analysis of the result of the EMI test,this paper find that the reason for the radiation emission exceeding the limit is the damaged shield of communication cable,which leads to the leakage of high order harmonics of the signal.Through the rectification of the communication cable,the radiation emission of the quipment finaly meet the CCS standard.