TN、TT接地系统在户外照明中的应用研究

The Application of TN and TT System in The Outdoors Lighting

通过对两种接地系统型式(TN、TT)的户外照明装置的接地故障保护的分析,得出了户外照明装置宜采用TT系统,应用漏电保护器作为接地故障的主保护,同时讨论了应用漏电保护器时应注意的问题。

By analyzing two ground - fault protection system, TN and TT, the paper concludes that the outdoors illumination device should use yr system. The paper also gives a summary of using leakage protector and discusses matters needing attention.