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There are also many examples of failures caused by interference.The interference signal of the system may come from the system itself or from the external environment.Since different systems have strict requirements on grounding,once the grounding resistance or grounding method fails to meet the requirements,the efficiency of network communication will be reduced or the possibility of bit errors will be increased,which will cause some functions to be abnormal at light level.lead to network paralysis.

干扰造成的故障的实例也不少。系统的干扰信号可能来自于系统本身，也可能来自于外部环境。由于不同的系统对接地都有严格要求的规定，一旦接地电阻或接地方式达不到要求，就会使网路通信的效率降低或增加误码的可能，轻则造成部分功能不正常，重则导致网络瘫痪。