According to industry insiders, the principle of the "anti-electricity wall" of the water heater is equivalent to installing a large resistor between the human body and the water. Once leakage occurs, this "resistance" can be divided into Most of the voltage, so that the voltage burdened by the human body is below 12V, which is far lower than the 36V human body safety voltage.
It is reported that as early as December 2007, the technical proposal for "anti-electricity wall" for water heaters has been voted by various countries and officially written into the new version of the international standard (IEC standard).
Relevant people from the China Household Appliances Standardization Committee said that the electricity consumption environment in different countries is different, and China's electricity consumption environment is very different. It is imperative to improve the safety standards of electric water heaters.
The reporter learned that in order to completely solve this problem, some water heater manufacturers have specially strengthened the patented technology of "anti-electricity wall".
Before the research and development, engineers selected 350 families as samples in 8 core cities and conducted detailed research on the residents’ housing structure, wall design, home appliances, regional power supply and water heater usage habits.
After 12 months of painstaking research and development, we finally developed an epoch-making new generation of water heater safety technology patent - three-way anti-electricity wall.
Industry insiders told reporters that this kind of hidden danger is mainly divided into two situations: First, the ground wire fails when the ground wire is used.
At present, every residential building in every community in China uses a ground wire. This ground wire connects different users and different household appliances in the user's home.
However, it has been found in practice that although the traditional "two-way anti-electricity wall" technology can solve the problem of electrification of water outlet water from water heaters, it is unable to solve the electrification problems of other home appliances caused by leakage of water heaters.
This is the terrible situation that Mr. Li's friend encountered: "The husband was taking a shower, and the wife was electrocuted."