The environmental condition of solar road stud is complex and changeable, the temperature and humidity may also be quite different. The temperature of northern winter is very low, while the temperature in southern summer is higher, and diurnal temperature difference in the northwest region is particularly large, along with the moist in southeast and arid climate in northwest, these will affect the normal working of solar road stud. Thus, the design of solar road stud should fully consider the environmental adaptation performance. At present, the requirement of the ministry of communications on the temperature is -20 °C to 85 °C . Three cycling tests should be made between 20 °C and 60 °C as well to check if it can adapt to the environment. The requirement of the ministry of communications on the hydrothermal property of solar road stud is that the solar road stud can still work normally after 48 hours test under the condition of 45 °C and relative humidity of 98%. The environmental adaptation performance of solar road stud is the comprehensive test on its mechanical properties and electrical performance, including structural design, circuit design, electronic device performance and other aspects, even including its production process. It requires that all aspects of solar road stud should be in place to ensure the good environmental adaptation performance of solar road stud.
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