Adding vertical rods to grounding system will decrease the seasonalcoefficient 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。
2
The seasonalcoefficient of grounding resistance possibly reaches 3.0 in freezing region of North China, and those of touch voltage and step voltage 10 and 5.4, respectively.
The model was developed to simulate seasonal and annual growth, foliage projective cover (FPC), and evaporative coefficient in the Ordos plateau, where serious desertification happened recently.