What Is a Ground Line?
A ground line is an electrical wire used to reduce the risk of electric shock. By nature, electricity always follows the fastest path to the earth. If a person were to touch an ungrounded wire, the electricity would pass through the body to reach the ground, resulting in injury or death. If a ground line is present, it offers a short path with low-resistance, which allows excess electricity to reach the earth more quickly than it would if passing through a person.