An electrical ground rod is a metal rod that is driven into the ground to provide a low-resistance path to the earth for electrical current. This is important for safety, as it helps to prevent electrical shocks and fires. Ground rods are typically made of copper or galvanized steel, and they are typically 8 feet long. They are installed by driving them into the ground with a sledgehammer or a grounding rod driver.
Ground rods are an important part of any electrical system, and they should be installed by a qualified electrician. If you are not comfortable installing a ground rod yourself, you can hire an electrician to do it for you. The cost of installing a ground rod will vary depending on the length of the rod and the soil conditions, but it is typically around $100-$200.