Tabla de contenido
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 module from the circuit will not interrupt the grounding
of any other modules.
The modules should be grounded to the same electrical point
as described below.
Figure 3
1. Find a grounding hole in the middle of frame.
2. Place the grounding clip onto the frame, making sure that
the screw straddles the
grounding hole. Using a No. 2 cross–recessed screwdriver,
thread the screw into the hole until the head is flush with the
base and the base is flush with the frame, then tighten the
screw with another 1/4 to 1/2 turn. Recommended torque is
between 2.3 and 2.8 Nm [20 and 25 in.–lbs].
3. For the grounding clip with the 8–32 and hex nut, thread the
hex nut onto the end of the screw, then using a 3/8–in.
wrench, tighten the nut. An additional star washer is
recommended.
4. Insert the wire into the wire slot. Press down on both ends
of the wire (the wire slot will cause the wire to form a slight
curve).
5. Manually, or using channel lock pliers, push the slider over
the base until it covers the base. This will terminate the wire.
UV-resistant cables and connectors approved for use should
be used. National electrical codes and regulations need to
be followed when selecting cables. For field connections,
use minimum 4 mm2 or #12 AWG copper solid wires
insulated for a minimum of 90°C.
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.
The approved way to mount Sharp PV modules to a support
structure is using the clips or clamps provided as described in
the Specifications. Note that if metal clips are used, there must
be a path to ground from the clips, (for instance, using star
washers in the clip hardware set).
Please review the descriptions and drawings carefully; not
mounting the modules according to one of these methods may
void your guaranty. These mounting methods are designed to
allow module loading of 2400Pa. Support structures that PV
modules are mounted on should be rigid. Sharp PV modules
are designed to ensure optimal electrical performance under
the condition that they are mounted on rigid support structures.
Deformation of support structure may damage PV module with
its electric performance.
When mounting the module on structure, ensure that no
corner has a displacement of more than 2mm per every
1000mm of the diagonal.
9. MAINTENANCE
The modules are designed for long life and require very little
maintenance. If the angle of the PV module is 5 degrees or
more, normal rainfall is sufficient to keep the module glass
surface clean under most weather conditions. If dirt build-up
becomes excessive, use only a soft, damp cloth and water to
clean the glass. If cleaning the back of the module is required,
take utmost care not to damage the back side materials. In
order to ensure the operation of the system, check the
connection of wiring and the state of the jacket of wires
occasionally.
For PV modules with anti-reflective coating glass, do not touch
the glass since finger prints or stains will easily mark. If dirt
build-up becomes excessive, clean the glass surface with
water only.
12
Tabla de contenido
