摘要
对通信电缆屏蔽层进行周密、精心的接地设计,对于减少通信电缆的电磁辐射,降低对传输信号噪声干扰,有着十分重要的意义。文章从电缆屏蔽层接地将直接产生电场屏蔽和磁场屏蔽这样两种果为主线,分别计算、论证了接地对抑制干扰所产生的重要作用;在电缆屏蔽中,又将降低频信号屏蔽与高频信号的屏蔽方式进行分析对比,总结出不同接地方式的各自特点及影响。为帮助寻求较理想屏蔽层接地方式,提供了具有一定参考价值的模式。
EMC grounding design of the shielding layer of cables can reduce radiation of electric magnetic and transmission signal noise interference. According to the grounding of the cable shielding layer which can shield the electric and magnetic disturbance, the paper analyzes that EMC grounding design of the shielding layer of cable can suppress the noise interfere obviously, and the different grounding modes can produce different shielding effect to low frequency and high frequency signals. Based on that, the paper gives out the different effects on different grounding modes, and provides some important references for searching the ideal mode of cable shielding layer grounding.
出处
《电力系统通信》
2005年第7期72-74,共3页
Telecommunications for Electric Power System
