Plug-in water heater, plug it into a socket without grounding wire, ok?

Yes, but it is not safe. The power cord on the electric water heater itself has a 10mA leakage switch, and there is also a leakage circuit breaker in general rooms, but it is better to have a grounding wire to be safer. There is a safe way to use: after the water reaches the set temperature of the water heater, turn off the power switch on the water heater. But it's not very unsafe. If there is no grounding wire, you can also choose to buy an electric water heater that can be installed without grounding wire. There is a patented insulated heating rod inside, which is relatively safe.

For safety reasons, it is best to ground the wires to prevent accidents.

According to the national supervision and spot-check inspection standards for product quality of water storage electric water heaters organized by AQSIQ, Mandatory national standards GB4706. 1- 1998 General Safety Requirements for Household and Similar Electrical Appliances, GB4706. 12-2006 Special Requirements for Safe Storage Electric Water Heaters for Household and Similar Electrical Appliances and recommended national standards GB/ Requirements specified in t 20289-2006 include protection against touching live parts, input power and current, heating, leakage current and electrical strength at working temperature, moisture-proof, leakage current and electrical strength, abnormal operation, mechanical strength, structure, internal wiring, power connection and external cord, terminals of external wires, grounding measures, screws and connections, creepage distance, electrical gap and insulation distance, and grounding.

3. One of the required items of 19 mentioned above is grounding, which shows the importance of grounding of electric water heaters. From the compulsory national standard GB4706. 12-2006 "Special Requirements for Safe Storage Electric Water Heaters for Household and Similar Electrical Appliances", it can be found that "anti-loosening measures should be taken for the grounding terminals of electric water heaters so that the grounding terminals will not loosen and fall off due to vibration or other reasons." It can be seen that the requirements for grounding terminals in the regulations are so strict, not to mention that it is absolutely illegal not to connect the grounding wire.

4. From the point of view of safety technology, the grounding device of electric water heater is very important. Without grounding wire, the water heater is prone to leakage, and the' leakage protection' device on the plug is useless. When the electric water heater is used in wet places, the heating pipe is in the container. If the heating pipe leaks electricity, it will hurt people. When the human body takes a bath, the resistance value is very small, and the probability of electric shock increases, which easily leads to the danger of electric shock. Therefore, we must be grounded. The grounding wire is the lifeline, so you can't take any chances. Electrical safety first, when using the electric water heater, be sure to check whether there is a grounding wire in the socket.

5. According to the safety regulations that indoor sockets must be equipped with grounding terminals, Class I electric water heaters must also be grounded, otherwise the grounding terminals of sockets will lose their original safety functions and functions.

Class I: There are working insulation, grounding terminals and grounding wires, which require grounding and zero connection. The ground wire must be insulated with yellow-green copper core, and there should be a clamping device to prevent loosening at the outlet of the appliance, and the contact resistance should not be greater than 0. 1.