safety ground

基本解释

Adding vertical rods to grounding system will decrease the seasonal coefficient and stabilize the safety of grounding system.
采用垂直接地极能减小接地系统的季节系数，起稳定接地系统安全性能的作用。
Seasonal coefficients affect the safety of grounding systems and increase with the thickness and resistivity of the soil layer.
季节因素将影响接地系统的安全性能。季节系数随冰冻季节形成的地表高阻层的电阻率及其厚度的增加而增加。
The seasonal factor affects the safety of grounding system, and causes changes in the grounding resistance, the step and touch voltages on the ground surface above the grounding system.
季节因素将影响地网的安全性能，导致地网的接地电阻、接触电压和跨步电压的改变。