Home appliance safety testing service

Because most of the household appliances are directly connected to the market power, the power consumption is large, and they have high temperature heating function and motor rotation, and the objects of use may be the old, the weak, the women and the children, so the safety requirements are more important than other products. Electric heating products are very important for temperature and fire protection, while motor products need special consideration for insulation and mechanical damage.

Example of toaster safety test

Temperature rise test: the instrument shall work for 15 minutes under the working condition specified in the standard, and the temperature of knob, shell, power line, interior, etc. shall not exceed the limit value specified in the village standard;Ignition test: This is a simulated abnormal test. Put the bread into the toaster, make the mechanical bounce device not work, and let the bread burn until the flame goes out. After the test, the anti touch protection and pressure test of the toaster should meet the requirements of the standard.

Main safety test examples of coffee pot

Overflow test: simulate the overflow situation of full container, and carry out pressure test. For example, pressurize (strengthen insulation) between live parts and accessible metal surface, according to EN60335-1: pressurize 3000V for 1 minute. Abnormal test: short circuit temperature controller, on the basis of rated power, increase the input power according to the proportion specified in the standard to make the heating tube heat continuously, and check whether the temperature safety device works. When the protection device does not work, if the temperature rise meets the requirements of the standard, it is also regarded as qualified. After the test, carry out the withstand voltage test.

Main safety test examples of platform and floor fans

Motor locked rotor test: block the motor, let the motor heat continuously under the rated voltage, and check whether the temperature safety device works. If the temperature rise of the winding meets the requirements of the standard when the protection device does not work, it is also regarded as qualified. Shaking head test: for the fan with shaking head device, the durability test of shaking head for 100000 times.

An example of measuring the surface temperature rise of an oven

Oven surface temperature rise test: under normal working condition and rated power condition, work to stability, and measure the temperature rise of oven outer surface. See the requirements of standard en60335-2-9table Z101 for temperature rise limit.

See the standard en60335-2-9figure Z103 for the part of external surface free from test.

EMF - electromagnetic field radiation to human body: this requirement is used to evaluate the intensity of magnetic field radiation generated by users of household appliances during normal use, so as to ensure that the magnetic field radiation of products is below a certain reference level, so as to protect human safety. The test is based on en62233.

ERP - risk assessment of household appliances: for electronic control products, if they have standby function, they need to be able to discharge interference to the control in standby mode to see if there is any adverse situation.