| Criterion
6.2.2 Solar Degradation
Criterion
text:
Components
or materials shall not be affected by exposure to sunlight to
an extent that will significantly deteriorate their function during
their design life.
Comments:
The materials used in solar systems components must be
able to withstand long term outdoor exposure, heat, etc. This
applies to materials associated with the control subsystem. Included
in this would be sensor wiring, photovoltaic wiring, photovoltaic
modules, and all other components that are control related. This
criterion ties into the Protection From Ultraviolet Radiation
criterion (6.1.2.2).
Installers
must use the materials and components provided by the manufacturer
for the SRCC certified solar system. All components and materials
have been reviewed and approved by SRCC for use in the approved
system.
As
also noted in 6.1.2.2, sensor wiring must be protected from solar
degradation. (Figure 1) Even small sections of wiring must be
protected from solar and UV degradation.
Figure
1
Note
that in Figure 2, the installer painted the sensor wiring to provided
increased solar and UV protection. Attaching the wiring to the
underside of the pipe insulation would have further sheltered
it from solar degradation.
Figure 2
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