Solar radiation compliance testing determines the effects of UV exposure pertaining to the physical and operational integrity of equipment.
The heating effects of solar radiation differ from those of high air temperature alone in that the amount of heat absorbed or reflected depends on the roughness and color of the surface on which the radiation is incident. In addition to the differential expansion between dissimilar materials, changes in the intensity of solar radiation may cause components to expand or contract at different rates, which can lead to severe stresses and loss of structural integrity.
Solar radiation can cause the following heating-related (infrared portion of the solar spectrum) problems:
Jamming or loosening of moving parts
Weakening of solder joints and glued parts
Change in strength and elasticity
Loss of calibration or malfunction of linkage devices
Loss of seal integrity
Changes in electrical or electronic components
Premature actuation of electrical contacts
Fading of colors of color-coded components
Changes in characteristics of elastomers and polymers
Blistering and peeling of paints and other finishes
Softening of potting compounds
- Spark Lab - Shenzhen
- Mr. Zhang