This article discusses some issues unsolved about lightning protection grounding device of PHC piles and provides some correction Suggestions based on the construction experience.
本文对PHC桩基础防雷接地装置施工中存在的若干问题及其改进方法进行探讨，并结合工程实际经验提出了建议意见。
The unit monitors the signals of currents and voltages in real time and has performance characteristics of three-sect current protection, grounding leakage protection and other protections.
该测控单元实时监控电流电压信号，具有三段电流保护和接地漏电保护等动作特性。
The protection relay monitors the signals of currents real time and has performance characteristics of three-sect current protection, grounding leakage protection and other protections.
该保护继电器实时监控电流信号，具有3段电流保护和接地漏电保护等动作特性。
The protection relay monitors the signals of currents real time and has performance characteristics of three-sect current protection, grounding leakage protection and other protections.
该保护继电器实时监控电流信号，具有3段电流保护和接地漏电保护等动作特性。
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