Connecting with exterior grounding conductor is an effective measure to decrease ground grid grounding impedance.
引外接地是一种降低地网接地阻抗的有效措施。
The resistance-reducing rate for the small ground grid or electrode is less than 56.6%, even under large permeability.
即使考虑强大的渗透作用，集中接地体或小型地网的降阻率也不会超出56.6%。
The key of corrosion detecting technique of ground grid was to solve the problem of in field current distribution, detecting methods and the noise interfering.
埋地裸金属网现场腐蚀检测技术研究着重解决了现场检测中的电流分散、检测方法、噪声干扰等问题。
When power generation and power consumption system with same voltage class is built within the bound of ground grid with zero ground potential, operators safety in the ground grid can be ensured.
在零地电位接地网的范围内建设同级电压的发电-用电系统，可保证在该接地网内工作人员的人身安全。
When power generation and power consumption system with same voltage class is built within the bound of ground grid with zero ground potential, operators safety in the ground grid can be ensured.
在零地电位接地网的范围内建设同级电压的发电-用电系统，可保证在该接地网内工作人员的人身安全。
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