It is pointed out that in modern lightningproof and grounding systems, it is the structure of the equipotential system not the grounding resistance that matters.
强调了在现代防雷接地系统中，重要的是等电位系统的结构而不是接地电阻阻值的大小。
In order to strengthen the stability and reliability of the system, lightningproof and static-free protection is improved and power trip protection circuits are added to to the design of senor power.
为了使系统更稳定可靠，提升了系统的防雷能力和防静电能力，并为传感器电源设计了传感器电源短路保护电路。
Lightningproof issues with chemical automatic control system were analysed. The lightningproof methods were explained emphatically.
本文分析了自动化系统的防雷问题，着重阐述了化工自动化控制系统的综合防雷措施。
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