The electric water heater leakage accident can be said to be related cases every year. Therefore, many people are inevitably worried about the safety of the use of electric water heaters. In fact, as long as we choose a brand electric water heater produced by a regular manufacturer, the possibility of leakage is relatively low under the condition of installation.
Most accidents originate from the unqualified quality of electric water heaters, such as buying some three-no products for cheapness, miscellaneous electric water heaters, or buying old second-hand electric water heaters. The cheap electric water heater not only does not have the manufacturer's name, the nameplate is unqualified, the number of liters and the energy efficiency is false, but its grounding device may also be unqualified. After all, electric water heaters are high-power electrical appliances, which can be two or three kilowatts at a loss. Once such products have leakage problems, the consequences will be unimaginable.
So, under what circumstances will the electric water heater leak? Electric water heaters generally have potential leakage risks due to the following reasons:
1. The leakage switch is damaged
The leakage switch in the distribution box is one of the leakage protectors of the electric water heater. Don’t ignore it. Press it once a month to test if it is damaged. Installing a leakage switch can protect power safety to the greatest extent. Regardless of whether you have ground wire in your home, you should install it and press it once a month. If it is found to be damaged, it should be replaced in time.
When the test button is pressed, a leakage signal will be generated inside the leakage protector. If the protector is in normal operation, it will trip immediately. If the switch does not trip after pressing the button, it means that the leakage protection function has failed and a new leakage switch needs to be replaced immediately.
2. There is no ground wire or the ground wire is connected incorrectly
For safety reasons, when installing an electric water heater, in addition to the socket, there is also a ground wire. without ground wire or unreliable grounding may cause the risk of leakage. After the grounding wire, when the leakage current appears, will flow directly to the ground through the ground wire, so that people will not be damaged by electric shock.
Now some families will nail the ground wire to the wall or tie it to the water pipe in order to have a flat and beautiful visual effect, or encounter irresponsible electricians to save trouble. This way of ground wire is equivalent to not connecting. Although the wall is also conductive, the resistance is unstable. Once the resistance value is greater than 4 ohms, there is no protection at all.
In addition, irregular installation of electric water heaters will also bring hidden dangers of electric leakage. For example, if the installation staff is not professional enough, connect the grounding socket of power socket to the live wire, which will cause the shell to be charged and cause the risk of leakage.
3. There is no anti-electric wall device
electric water heater is not as dangerous as everyone imagines. In fact, the anti-electricity technology of electric water heaters is now very mature. Big brands of electric water heaters all have anti-electric wall designs, which can enhance resistance by extending the path of water flow and the amount of water flow, greatly improving the safety index and helping us block and reduce the harm of part of the current to our body.
So, if you buy an electric water heater, you must choose one with an anti-electric wall device. In this way, even if there is leakage in the process of use, the electric water heater will automatically be powered off. Compared with the electric water heater without an electric wall, it has an additional safety guarantee.
4. After the service life,
Many people will not consider the service life of home appliances. As long as it does not fail, it can be repaired well, it will continue to use it. In fact, electric water heaters have a certain service life. If they exceed 8 years, their safety will be greatly reduced.
not only will the power consumption increase, but it may be possible that the inner vessel will be corroded by impurities in the water, the components inside will age, and even the insulation layer will age. In this case, the probability of leakage will undoubtedly increase, and in severe cases it may explode. The safe use of
water heater is related to your own and your family's life and health, and you will never be careless.Do you all know the above four points? Follow me to learn more about home furnishings!
