UV Accelerated Weather Testing for Cables
No direct correlation can be made between accelerated weathering duration and actual outdoor exposure duration. However, performance comparisons under the controlled conditions of accelerated weathering can be compared to documented performance of materials and coatings that have experienced extended periods of end use exposure.
Typically, flat plaques or disks are used for accelerated weathering studies. The test methodology lays out that test samples are subjected to a cycle of exposure to intense ultraviolet radiation followed by moisture exposure by condensation. Various cycles (in number and length) are defined depending upon the intended end use application, these cycles would be continued for extended periods of time simulating even longer periods of time in the real world.
The resulting performance will give a clear indication of whether a cable is able to deliver the UV stability and performance after ageing and weathering that is expected of an external cable.
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