Wind power and solar street light price traffic signal lamp shell protection grade

A test on dust test box, dust experiment, the air in the oven to keep talcum powder state of suspension, should contain the talcum powder 2 kg per cubic meter of space, talcum powder particle size of the minimum of 1 mu; 米~ 75亩; M, of which at least 50% ( Quality) The particle size of less than 5 mu; m。 Shall not

a dust, dust test test in testing room. Indoor air to keep talc powder suspension. Talcum powder content should be within 2 kg per cubic meter empty, talcum powder particle size should be at least 1 micron. M ~ 75 mu of at least 50 quality % particle size less than 5 mum. Talcum powder used for more than 20 times shall not be used for testing. Lights to hang outside the dust collection box, working under rated voltage for 1 hour. Then, working lights with the minimum interference in the dust collection box. Then, start the fan suspended talcum powder. After 1 minute, shut the power of the light, the light cooling 3 hours, and talcum powder remain suspended. After testing, visual inspection and dielectric strength test sample. Second, the waterproof test using water jet test equipment for testing. The radius of the semicircle pipe should be as small as possible, and is suitable for the size and position of light. Line of blowhole should make water directly into the center of the circle. Device entry pressure of about 80000 mpa, pipeline swing 120 degrees. The vertical line on both sides of the 60 degrees; , to complete a swing, 2 times; 120 degrees; ) About 4 seconds, light should be installed at the top of the pipe axis, so that the ends of the lamp can be completely water spray. Open the lamp power supply, make the normal work of the signal lamp, lamp at a rate of 1 r/min around its vertical axis rotation, and then use hydraulic device to the light, closed 10 minutes after the lamp power supply, light and natural cooling, at the same time continue to spray water for 10 minutes. After testing, visual inspection and dielectric strength test sample.