The Importance of Electrical Earthing in Homes. Electrical earthing is one of those safety features we rarely think about—until something goes wrong. Yet, it’s one of the most important parts of a home’s electrical system. What is Earthing? Earthing means connecting parts of your electrical installation to the ground through a conductor (usually copper or galvanized iron). This provides a safe path for stray electrical current to flow directly into the earth instead of passing through people or