The appliance failure rate standard is the number of times a device fails within a specified period of time, usually one year. According to industry practice, this standard is usually in the range of five to ten percent. For example, the number of times an appliance fails in a year should not exceed five to ten percent of the total number of appliances.
The specific failure rate criteria for different types of appliances are as follows:
Mechanical equipment (electrical): average number of failures per piece of equipment/total assemblies of that equipment*100 percent.
Semiconductor devices (electronic components): average number of failures per electronic component / total assembly of that component * 100%.
Chemical materials: average number of failures per chemical material / total assembly of that material * 100%.
Medical devices: average number of deaths per surgery due to devices/total assembly of that type of device*100%2.
For home appliances in the countryside, the average repair rate is 1-2%. However, data released by the China Consumer Association shows that the repair rate for home appliances in the countryside is as high as 12.6%3, a figure that differs significantly from that released by the Home Appliance Association. In order to more accurately assess the failure rate of home appliances, it is recommended that detailed statistics and analyses be conducted, and relevant data be combined for comparison.