Why are Stones used in Substations instead of Sand or Grass?
Why are Stones, Pebbles and Gravel used in an a Switchyard? In an electrical substation, there are multiple devices and equipment such as power and distribution transformers, transmission lines, Potential and Current transformers, Isolators etc are grounded. Beside the grounding in a substation, we will discuss why are pebble used in a substation and what is the reason behind doing so?