How to test the flame retardancy of cooling fan manufacturer

At present, most of the cooling fan manufacturers use flame retardant high strength environmental protection materials, the purpose is to be environmentally friendly, waterproof, with protection, corrosion resistance, light weight, so how should we test when we determine?

The first step is to ignite the alcohol lamp, watch out for the long lamp and confirm the length of the flame is about 2 centimeters.

The second step: cut off the frame bracket, extend the frame bracket to about 1cm in the flame, ignite the bracket and fully burn it.

Step 3: slowly remove the alcohol lamp and confirm that the bracket of the confirmation frame should be completely extinguished within 3-5s.

Step 4: turn off the alcohol lamp with the lamp cover. (do not blow out alcohol lamp with mouth)

Every cooling fan of dongxingyue in Shenzhen city will be tested strictly. We will deliver it to customers after there are no problems in the test. We can guarantee the quality. Dongxingyue has the production of cooling fan, DC axial fan, DC fan, blower, AC fan, centrifugal fan, cabinet fan, power fan, inverter fan, low noise fan and silent fan We are familiar with the requirements of various industries for cooling fans. We have a variety of specifications and models for your reference. We have strong design capabilities. We can customize the cooling fans you need according to your product requirements.