The ground wire is actually the protective wire installed separately from the electric box, and then it is connected to the water heater and the socket at home. Why do you need a grounding wire? In fact, the ground wire can protect us. If there is leakage in the bath, the ground wire will ensure that the current will not pass through the human body, but flow to the lower voltage ground, which can protect from damage.
It is also necessary to tell everyone that the installation of the ground wire into the wall is not in accordance with the regulations. After all, this becomes an ordinary wire and cannot protect its own safety. If you find that you don't have a ground wire installed in your home, or if you don't meet the regulations, you must remember to remove the plug when you take a bath. Don't take your life safely and laugh. When you are grounding the wire, remember to do the resistance test. If it is greater than 4 ohms, it is better not to connect.
In order to ensure safety, it is necessary to install an anti-electric wall at home. This basic water heater is self-contained, all of which are available, but it should be noted that no matter what kind of protective measures, remember to install according to the standard, please professional Come to the decoration, so that you will be assured.