Hi
I had to replace a tile on my roof this morning and I noticed that the red DC cable connecting the panels has faded to a pink colour where it is exposed to the sunlight. In places it is almost white. The black cable looks ok. The installation is 9+ years old, being installed just before FITS started in March 2010.
Is this something that I should be concerned about and get the cables replaced. Perhaps with the cables inside flexible conduit where they are exposed to sunshine.
Thanks in advance.
John
As you say UV is degrading the insulation, eventually it'll just disintegrate. Fortunately the cable normally used for DC side has two layers of insulation.