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Solar Energy
Note:
Solar modules positioned at a low angle accumulate
dirt more easily. You can find instructions on mainte-
nance-friendly installation in Section 3.
Note:
The system should not be maintained in direct
sunlight or under extremely high insolation conditions
as module surfaces become extremely hot and elec-
trical voltages and currents reach a maximum level!
7.1
Inspection
The following tasks should be carried out during an
inspection:
Check solar modules for mechanical dam-
age (cracks, shattered glass). Replace dam-
aged modules immediately, carried out by a
specialist company.
Inspect coupler connections to ensure they
are firmly in place and free of corrosion.
Secure any cables and couplers which have
become loose using UV-resistant fastening
materials.
Check the spacing between solar modules;
re-position if necessary.
Ensure that the solar module is not in direct
contact with metal components in the sub-
structure, such as screws and rails. If neces-
sary, re-position solar modules or replace
the permanently elastic bedding.
Remove any dirt from solar modules; see
section on cleaning.
Check that fastening components such as
rails, clamps and anti-slip devices are se-
curely in position and, if required, re-fasten
securely or replace damaged components
according to the installation instructions.
7.2
Cleaning
You should use soft cloths and plenty of wa-
ter for cleaning.
Do not use high-pressure cleaners for clean-
ing.
The temperature of the water should not be
widely different from the temperature of the
solar module's surfaces, otherwise you risk
cracking the glass surface.
Do not use any sharp objects such as glass
scrapers or metal scourers to clean modules.
Any damage to glass surfaces due to
scratches will weaken the glass and cause it
to break.
Do not use cleaning agents. Do not use
abrasive, acid or alkaline cleaning agents
under any circumstances.
Do not step on the solar modules when
cleaning. Use inspection gangways or suit-
able machinery, such as a cherry picker or
an elevating work platform.
14
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