"Anti electric wall" is an abbreviation, and its exact expression method should be "anti water attenuation isolation method". In the general impression, pure water is not a conductor, and other impurities in tap water are conductors, which is very dangerous to contact electricity. In fact, any object has resistance, so it can be transformed into equipment that meets safety needs on the premise of economically benefiting mankind. This is the case with the "electric wall".

"Anti electricity wall" (i.e. waterproof resistance attenuation isolation method) is to use the resistance of the water itself (as specified in the national standard, the resistivity of tap water at 15 ℃ should be greater than 1300 Ω). Cm). The selection of water pipe materials (insulation materials), the determination of pipe diameter and distance form a "separation wall". When Electric water heater When working with power on, even if there is power in the tank, when passing through the "partition wall", it will decay due to the resistance of the water itself, so as to achieve the purpose of electrically isolating the water heater. The zero voltage and very weak current below 0.02mA/kw are much better than the national standard of 0.25mA/kw.

1. Check the CCC logo. Quick heating type Intelligent thermostatic water heater Products are CCC certified mandatory products, and products with CCC certification mark shall be purchased.

2. Select the product. According to the different installation methods, the fast heating intelligent thermostatic water heater products are divided into horizontal wall mounted, vertical wall mounted and floor mounted. In addition, there are many specifications for capacity and power. When purchasing, please choose the products that are suitable for you according to the actual needs of your family.

3. View logo and description. The standard stipulates that the product logo should be complete, including the company name or trademark, specification and model, voltage parameters, power parameters, rated pressure, etc. The equipment manual should have detailed installation and operation instructions and detailed maintenance methods. The water inlet and outlet marks on the product should be clear, reliable and fixed.

4. Observe the product appearance. High quality products have uniform paint appearance, bright colors, no shedding, no dents or serious scratches, extrusion marks; Various switches and knobs have beautiful shapes and fine processing; The dial and other handwriting are clearly visible. In addition, the product packaging box should be complete and firm, and attached with instructions, certificates, warranty cards and complete accessories.