WhisperPower 60110437, Руководство по установке

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5
ENG
ITA
FRA
ESP
WHISPERPOWER PHOTOVOLTAIC MODULES
DEU
RISKS FROM MECHANICAL DAMAGE
The photovoltaic cells contained in WhisperPower modules are fragile. The manufacturing technology of the
modules provides protection for the cells, provided that certain precautions are taken.
WhisperPower modules are flexible, but they cannot be
rolled-up or folded. The minimum allowed curvature
radius is 1 m. For a 1 m long module, the maximum
arc (F) is 122 mm.
Excessive bending must be avoided when handling the
modules. See Fig. 1 for correct handling. The module may be handled by the edge (Fig. 2), but only if it is held
vertically and without exerting excessive pressure to the edges of the cells. The modules should not be held by
the short ends or corners as this may cause excessive bending under their own weight (Fig. 3).
WhisperPower modules may be walked on, but only when they are firmly mounted on a flat, smooth, rigid
surface, with no bumps, hollows or irregularities (Fig. 4), taking care, barefoot or with soft-soled shoes,
avoiding heels and shoes with a rigid sole (Fig. 5).
Uninstalled modules or modules in removable installations (using eyelets, snap fastners etc.) must not be
walked on.
If sharp or heavy objects are allowed to fall onto the modules, they can cause fractures in the cells (Fig. 7).
If, during installation or maintenance, it is necessary to kneel on the module, it is advised to use adequate
protection, to avoid damaging the cells (Fig. 8).
HOT-SPOT
A module containing damaged cells, or even a module in good condition in which one or a small number of
cells are completely shaded (Fig. 6), can suffer from a HOT-SPOT, i.e. local overheating, even up to the point of
causing the protective material to smoke and reach temperatures over 200°C (392 °F) on small areas.
In principle, this phenomenon could cause a fire, a danger which is always present where electrical apparatus
is used. However, normally the damage is limited to small local burning as in the examples shown in Fig. 9.
In the event of HOT-SPOTS forming, the module must be disconnected immediately. In this way, the flow
of current is stopped and further temperature rises are avoided. As an alternative, it is possible to cover the
module, to avoid exposure to light. In the case of several modules connected in series, the only solution is to
disconnect the module
.
MECHANICAL INSTALLATION
P
Do not bend the modules with a radius of bending less than 1m, otherwise the photovoltaic cells could
be permanently damaged.
P
WhisperPower modules alone cannot withstand the loads caused by high winds or snow. The installation
must bear in mind the structural resistance of the modules’ support. The structure must not be
continually subjected to stress. Improper use of WhisperPower modules can cause irreversible damage
to the system, thereby compromising the efficiency and usage of the system.
P
The position of the installation should take advantage of the maximum exposition to the sunlight and the
minimum shading. Remember that even partial shading of the module can cause a substantial reduction
in the amount of energy produced. Do not place objects on the modules exposed to the light (Fig. 6).
P
The position of WhisperPower modules must allow adequate circulation of air on the surfaces exposed
to sunlight. This is sufficient to lower the temperature and ensure high efficiency
INSTALLATION WITH EYELETS/SCREWS
WhisperPower modules may be supplied with metal eyelets for installation. In this case, the modules are
fixed using ropes, straps or other similar devices, to rigid surfaces which support the modules and resist
atmospheric agents. Holes may be used to screw the modules to a rigid surface, in the same position as the
eyelet holes. In both cases,
the modules cannot be walked on.