Abstract:

Based on EMC (Electromagnetic Compatibility) basic theory, in view of the communications network in remote modules are mostly located in the township and  poor security features, the module was constructed in the communication operators in the process of safety management model. Based on IEC61643-1 (GB18802.1) of performance requirements and test methods, the use of SPD(Surge Protective Devices) +MCB(Miniature Circuit Breaker) package, to achieve a multi-level protection programme design. And for transient interference suppression in the grounding system in the engine room environment, soil sampling and grounding to choose a practical management measures. Greatly improve the communication system in the modules reliability and security.

Key words: grounding connection, electromagnetic environment, protective ground, modules