高原某水厂降阻接地方案设计

建设于云南省蒙自市的小东山自来水厂处于典型的喀斯特地貌上,地块土壤电阻率较高,采用常规接地做法难以满足联合接地电阻值小于4Ω的要求。设计选用安装深井垂直接地极、增加水平接地极及使用降阻剂的方案作为降阻措施,经现场实施验证设计方案的可行性,成功降低接地电阻值,提高设备及现场工作人员的安全性。

Xiaodongshan Waterworks,built in Mengzi City,Yunnan Province,is located on a typical karst landform with high soil resistivity,so it is difficult to meet the requirement that the combined grounding resistance is less than 4 Ω by using conventional grounding methods.The scheme of installing vertical ground electrode in deep well,increasing horizontal grounding electrode and using resistance reducing agent are selected as resistance reduction measures in the design.The feasibility of the design scheme is verified by field implementation,and the grounding resistance is reduced successfully and the safety of equipment and field staff is improved.