Sharp NU-RC300 handleiding
Handleiding
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Clean the components, if necessary.
8.1.2 Inspecting the documentation and drawings
• Checking the PV module string plan 6,
• Check the inverter's status reports
• Determine and archive the annual output
• Create and archive the inspection report.
8.2 Review
Carrying out a thorough review at least every 4 years
is recommended. This includes the following work in
addition to the inspection:
• Measure the characteristics of individual strings
(MPP current IMPP, open-circuit voltage UOC, power
output PMPP);
• Measure the insulation resistance RIS (7, 8)
• Evaluate the annual power output and compare the
data with earlier readings;
• Create and archive a review report.
Check, repair or replace components, if required.
Refer to Ch. 8.3: „Details for the inspections”.
8.3 Details for the inspections
8.3.1 Mechanical inspection
■ Safety precautions
Refer to the notes in Ch. 3.2.2: „Mechanical safety
precautions“.
■ Work steps
During the inspection, check that the mechanical con-
nections are clean, securely fitted and properly intact.
8.3.2 Electrical inspection
■ Safety precautions
Make sure you refer to the notes in Ch. 3.2.1: „Electri-
cal safety precautions“.
■ Work steps
During the inspection, check that the electrical connec-
tions are clean, securely fitted and properly intact.
Identify any defects or irregularities in the electrical
installation and make a record of them. Then rectify the
problem as quickly as possible.
6 Suggestion for external inspectors: perform a spot check to ensure that the
module string plan matches the installation.
7 According to the standard IEC 61215, a photovoltaic module should have an insulation
resistance of at least 40 Mohm • m².
8 Some inverters provide the measured insulation resistance via an interface.
8.4 Cleaning
Depending on the ambient conditions, PV modules are
likely to get soiled more or less heavily over time. This
can cause reduced output.
Dirt could be:
• Dust, pollen or seed
• Leaves or twigs
• Deposits from stable vapour
• Moss, algae, fungi or bacteria growing on deposits (in
short: biofilms)
• Salt (in coastal regions)
8.4.1 Safety precautions
CAUTION!
Contact of live parts with water. Risk of electric
shock!
• Never use a high pressure cleaner. HIN
WEIS
You will also retain the manufacturer's warranty as a
result of this measure.
8.4.2 Glass surfaces
• The glass surfaces of PV modules have
microscopic structures or anti-reflex coatings.
Ensure that these do not get damaged. Do not use
any cleaning agents which will polish or scratch the
surface.
• Avoid the use of very hard water.
• Also avoid the use of distilled or demineralised
water if possible.9
• Avoid the use of acids, bases or other aggressive
cleaning agents.
HINWEIS
Dirt- or water-repellent coatings subsequently applied
to the modules can negatively affect the efficiency
of the PV modules and therefore the power output of
the whole photovoltaic system. We therefore
advise against the use of these agents.
RECOMMENDATION
For cleaning the glass module surfaces, we
recommend :
• Rainwater without additives10 with its temperature
matching the temperature of the module.11
• A soft sponge or a soft brush.
• If necessary, use a telescopic rod with a sponge or
soft brush attached on the end. The rod can have a
water pipe integrated.
• For stubborn patches of dirt, use the following to
help:
• Isopropanol:
We recommend a mixture of isopropanol and rainwater
to the ratio of 1:1.
• Glass cleaner:
As an alternative, we recommend clear,
colourless glass cleaner with no ethanol or
denaturants (e.g. Bitrex®)12.
Anti-reflective-Glass
The PV modules have an anti-reflex layer on the glass
surface to achieve a higher output. This means that
some marks (e.g. fingerprints) are more visible than on
normal glass. These marks are mostly seen as shim-
mering patches. These kinds of marks do not have any
measurable effect on the module output and fade away
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Productinformatie
| Merk | Sharp |
| Model | NU-RC300 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 1935 MB |
