The importance of grounding (Earthing) system for every part of electrical network i.e. generating station, transmission system, distribution system, residential building, commercial building etc. can not be ignored. It is pertinent to express here that use of adequate and appropriate grounding system helps to mitigate the fire hazards and accidents.
The main objective of grounding electrical systems is to provide a suitably low resistance path for the discharge of fault current which ultimately provide safety to working personnel and costly installed equipments in the substation. The flow of heavy fault current results in rise of potential in the vicinity of point/area of fault (ground fault) with respect to remote ground. There is need to ensure that the ground potential rise, and touch and step voltages are within permissible limits.
This paper provides an overview of the significance of adequate & appropriate grounding (Earthing) system in averting accidents & damage to equipments in power network including low voltage system.
Electrical Shock, Grounding (Earthing), Step and Touch Potential, Fire Hazard and Electrical Accident & Prevention
