The sum of direct solar radiation and scattered radiation that reaches the ground after being weakened by the atmosphere is called total solar radiation. On a global average, total solar radiation accounts for only 45% of solar radiation reaching the upper atmosphere. The total radiation decreases with increasing latitude and increases with height. It is the largest around noon in a day and 0 at night; summer is big and winter is small in a year. Solar radiation energy accounts for 50%, 43% and 7% in visible light (0.4～0.76μm), infrared (>0.76μm) and ultraviolet (<0.4μm), which is concentrated in the short wave band, so the solar radiation is called short wave radiation. Solar radiation test is to evaluate the ability of outdoor unshielded use and storage equipment to withstand solar radiation heat and optical effects.
Solar radiation test standard:
GJB 150.7-86 Military equipment environmental test method Solar radiation test
GB 4797.4-1989 Natural environmental conditions for electrical and electronic products Solar radiation and temperature
GB/T 2423.24-1995 Environmental testing for electrical and electronic products. Part 2: Test method Test Sa: Simulate solar radiation on the ground
