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4. Maintenance and care
It is required to perform regular inspection and maintenance of the modules,
especially within warranty scope. To ensure optimum module performance, Jinko
recommends the following maintenance measures:
4.1 Visual Inspection
Inspect the Modules visually to find whether there are appearance defects, the
following need to be paid more attention especially:
a) Whether the glass is broken;
b) No sharp objects are in contact with the PV module surfaces
c) PV modules are not shaded by unwanted obstacles and/or foreign material
d)
Corrosion along the cells‟ bus
-bar. The corrosion is caused by the dampness
infiltrated into the Modules because that the surface encapsulation materials are
damaged during the installation or transportation.
f) Whether there is burning vestige on the backsheet.
g)
Check fixing screws and mounting brackets are tight, adjust and tighten as
necessary.
4.2 Cleaning
a) A built up of dust or dirt on the module(s) front face will result in a decreased
energy output. Clean the panel(s) preferably once per annum if possible
(depend on site conditions) using a soft cloth dry or damp, as necessary. Water
with high mineral content may leave deposits on the glass surface and is not
recommended.
b) Never use abrasive material under any circumstances.
c) In order to reduce the potential for electrical and thermal shock, Jinko
recommends cleaning PV modules during early morning or late afternoon hours
when solar radiation is low and the modules are cooler, especially in regions
with hotter temperatures.
d) Never attempt to clean a PV module with broken glass or other signs of
