柔性石墨接地体在山区杆塔接地网中的应用

The Application of Flexible Graphite Composite Electrical Grounding Material in Mountain Grounding Grid

为解决山区杆塔设计存在地形复杂、土壤电阻率高等问题,提出了一种石墨膨润土和柔性石墨接地体在山区杆塔建设中配合使用的方法;并用数值仿真软件CDEGS对典型山区地形接地电阻仿真计算,针对不同地形地貌并结合柔性石墨接地体的优势提出一套优化设计和改造方案。工程实际应用表明,在山区特殊地形采用独特的杆塔接地网型式;并用石墨膨润土改善接地体周围土壤环境,能有效控制杆塔接地电阻在规程要求内,具有较高的应用价值和推广价值。

In order to solve the problem that the terrain is complex and soil resistivity is high when designing mountain tower. Used graphite bentonite and flexible graphite composite electrical grounding material together in tower construction in mountainous areas was proposed. Then numerical simulation software CDEGS was used to caculate typical mountainous terrain ground resistance. And then a set of optimization design and retrofit scheme for different topography was putt forward. Practical engineering application shows that the way that using unique tower grounding grid type in particular mountainous terrain and using graphite bentonite to improve grounding body surrounding soil environment has a high application value and popularization value,which can effectively control the tower ground resistance in within the requirements of the rules.