It is said that some brands of electric water heater to ground, and some brands do not need, but I heard that from July 1st this year, the provisions of the installation of electric water heaters must have ground wire, so they do not understand!
If there is no grounding wire, the electric water heater is easy to leak, the power supply plug on the "leakage protection" device will be useless, so before installation must check the socket has a ground wire.
The use of gas water heater or improper installation will cause personal casualties, electric water heater "no" ground protection will also cause tragedy. Even if the electric water heater, buy is qualified, but if the electrical environment security, power has been effectively "ground", may also occur in water pipes, shower water and other non charged insulator, or even lead to electric shock accident.
Yes, the grounding safety is the basic condition of the installation of electric water heaters. There is no safety guarantee for the circuit grounding (ground wire) in the home, and the electric water heater is not selected. After the purchase, please follow the instructions in the installation and use, installation of electric water heater grounding device is very important
