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bare hands when the PV module is irradiated. Cover the
surface of PV module with cloth or other suitable
sufficiently opaque material to isolate the PV module from
incident light and wear rubber gloves when handling the
wires to avoid electric shock.
7.
Do not scratch the output cable or bend it with force. The
insulation of output cable can break and may result in
electricity leakage or shock.
8.
Do not pull the output cable excessively. The output cable
may unplug and cause electricity leakage or shock.
9.
Do not drill holes in the frame. It may compromise the
frame strength and cause corrosion.
10. Do not scratch the insulation coating of the frame (except
for grounding connection). It may cause corrosion of the
frame or compromise the framework strength.
11. Do not touch the PV module with bare hands. The frame
of PV module has sharp edges and may cause injury.
12. Do not drop PV module or allow objects to fall down on
the PV module.
13. Do not concentrate sunlight artificially on the PV module.
14. Do not hold the PV module on one side. The frame may
bend or twist. Hold the PV module at opposite sides.
INSTALLATION SAFETY
1.
Always wear protective head gear, insulating gloves
and safety shoes (with rubber soles). Do not wear
metallic jewellery to prevent electric shock during
installation.
2.
Keep the PV module packed in the carton until
installation.
3.
Do not touch the PV module unnecessarily during
installation. The glass surface and the frames get hot.
There is a risk of burn, or electric shock.
4.
Do not work under rain, snow or windy conditions.
5.
Use dry insulated tools.
6.
Do not drop tools or hard objects on PV modules
7.
When working at heights, wear a safety belt and take
care not to drop any items (e.g., PV module or tools).
8.
Make sure flammable gases are not generated near
the installation site.
9.
Completely cover the PV module surface with an
opaque material during PV module installation and
wiring.
10. Plug in the connector tight and ensure the wiring work.
Make sure that the connectors have been locked by a
snap-in latch. Any treatments over the connectors
which may allow to unlock the snap-in latch shall not be
done.
11. Due to the risk of electrical shock, do not perform any
work if the terminals of PV module are wet.
12. Do not touch the junction box and the end of output
cables, the cable ends (connectors) , with bare hands
during installation or under sunlight, regardless of
whether the PV module is connected to or
disconnected from the system.
13. Do not unplug the connector if the system circuit is
connected to a load.
14. Do not stomp on the glass at work. There is a risk of
injury or electric shock if glass is broken.
15. Do not work alone (always work as a team of 2 or more
people).
16. Do not damage the back sheet of PV modules when
fastening them to a support by bolts.
17. Do not damage the surrounding PV modules or
mounting structure when replacing a PV module.
18. Bind cables by the insulation locks. Drooping down of
cables from the junction box could possibly cause
various problems such as animal biting, electricity
leakage in puddle.
19. Take proper measures for preventing the laminate
(consisted of resin, cells, glass, back sheet, etc.) from
dropping out of the frame in case the glass is broken.
20. Cables shall be located so that they will not be
exposed to direct sunlight after installation to prevent
degradation of cables.
21. If batteries are used with modules, follow safety
precautions of the battery manufacturer.
22. In case of extreme snow build-up, the weight of the
snow may cause the module's frame to deform. Take
appropriate preventive measures to minimize any
possible resulting damage.
4. SITE SELECTION
In most applications, the PV modules should be installed in a
location where there is no shading throughout the year. In the
Northern Hemisphere, the PV modules should typically face
south, and in the Southern Hemisphere, the PV modules
should typically face north.
Please make sure that there are no obstructions in the
surroundings of the site of installation. Take proper steps in
order to maintain reliability and safety, in case the PV modules
are used in areas such as: Heavy snow areas / Extremely cold
areas / Strong wind areas / Installations over, or near, water /
Areas where installations are prone to salt water
damage/corrosive gas environment/ Small islands or desert
areas.
The results of the ammonia test and the salt-mist-corrosion
test on the modules, carried out under such strict test
conditions, should be disclosed for reference purposes only.
The decision on whether the modules are suitable and
compatible for each installation field will depend on the user's
judgement and responsibility.
5. TILT ANGLE
The tilt angle is the measurement between the PV module and
a horizontal ground surface. The PV module generates the
maximum output power when it faces the sun directly.
5 degrees or more is recommended for the tilt angle of the PV
module for the maintenance ( See 9. Maintenance).
For the standalone systems with a battery where the PV
modules are attached to a permanent structure, the tilt angle
of the PV modules should be determined to optimize the
performance when the sunlight is the scarcest. In general, if
the electric power generation is adequate when the sunlight is
the scarcest, then the angle chosen should be adequate
during the rest of the year. For grid-connected installations
where the PV modules are attached to a permanent structure,
it is recommended to tilt the PV module at the angle equal to
the latitude of the installation site so that the power generation
from the PV module will be optimum throughout the year.
6. WIRING
To ensure proper system operation and to maintain your
guaranty, observe the correct cable connection polarity
(Figures 1 & 2) when connecting the modules to a battery or to
other modules. If not connected correctly, the bypass diode
could be destroyed.
PV modules can be wired in series to increase voltage.
Connect wires from the positive terminal of one module to the
negative terminal of the next module. Figure 1 shows modules
connected in series.
Connect PV modules in parallel to increase current. Connect
wires from the positive terminal of one module to the positive
terminal on the next module. Figure 2 shows modules
connected in parallel.
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