SIM02E-012
3
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 setting
the mounting and/or equipotential bonding 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. Plastic components such as cables or connectors shall be
located so that they will not be exposed to direct sunlight
after installation to prevent degradation of them.
21. If batteries are used with PV modules, follow safety
precautions of the battery manufacturer.
22. In case of extreme snow build-up, the weight of the snow
may cause the PV 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 PV modules, carried out under such strict test conditions,
should be disclosed for reference purposes only. The decision
on whether the PV 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 PV modules to a battery or to other
PV modules. If not connected correctly, the bypass diodes could
be destroyed.
PV modules can be wired in series to increase voltage. Connect
wires from the positive terminal of one PV module to the
negative terminal of the next PV module. Figure 1 shows PV
modules connected in series.
Connect PV modules in parallel to increase current. Connect
wires from the positive terminal of one PV module to the positive
terminal on the next PV module. Figure 2 shows PV modules
connected in parallel.
7. GROUNDING
The frame grounding must consider the local requirement and
regulation at the installation site. When grounding is required,
please refer to below example connection (Figure 3). Please
be careful in arranging the system ground so that the removal
of one PV module from the circuit will not interrupt the grounding
of any other PV modules.
The PV modules should be grounded to the same electrical
point as described below.
You can use a hole with the appropriate symbol for equipotential
bonding on the side frame for either a bolt, nut and washer
grounding the PV module to the frame, a ground lug fastened
by bolt or screw, or appropriate screw (hardware not provided).
An example of acceptable ground connection using a bolt, nut
and washer retaining a ground lug is shown in Figure 3. In a
connection of this type, the hardware (such as a toothed locked
washer / star washer) must score the frame surface to make
electrical contact with the frame. The ground wire must be
considered within the local requirement of local and regulation
at the site of installation.
8. MOUNTING
Please make sure that all the information described in the
INSTALLATION MANUAL is still valid and proper for your
installation. The mounting method has been verified by SHARP
and NOT CERTIFIED by a third party organization.
Bypass Diode
(Built-in Junction Box)
Bypass Diode
(Built-in Junction Box)
