Werbung
1. INTRODUCTION
This Installation Manual contains essential information
for the electrical and mechanical installation that you
must know before installing SHARP PV modules. This
also contains safety information you need to be familiar
with.All the information described in this manual are the
intellectual property of SHARP and based on the
technologies and experiences that have been acquired
and accumulated in the long history of SHARP. This
document does not constitute a guaranty, expressed or
implied. SHARP does not assume responsibility and
expressly disclaims liability for loss, damage, or
expense arising out of or in any way connected with
installation, operation, use or maintenance of the PV
modules. No responsibility is assumed by SHARP for
any infringement of patents or other rights of third parties
that may result from use of PV module. SHARP
reserves the right to make changes to the product,
specifications or installation manual without prior notice.
2. COMPONENTS
Connector
Electrical Cable
Junction Box
Superstrate Glass
Frame
Solar Photovoltaic Cell
3. GENERAL INFORMATION
(INCLUDING WARNING AND SAFETY)
The installation of PV modules requires a great degree
of skill and should only be performed by a qualified
licensed professional, including licensed contractors
and licensed electricians. Please be aware that there is
a serious risk of various types of injury occurring during
the installation including the risk of electric shock. All
SHARP PV modules are equipped with a permanently
attached junction box that will accept variety of wiring
applications or with a special cable assembly for ease
of installation, and they do not require special assembly.
< GENERAL WARNING >
1. PV modules are heavy. Handle with care.
2. Before you attempt to install, wire, operate and
maintain the PV module, please make sure that
you completely understand the information
described in this installation manual.
3. Contact with electrically active parts of a PV
module such as terminals can result in burns,
sparks and lethal shock whether the PV modules
is connected or not.
4. PV modules produce electricity when the sufficient
sunlight or other sources illuminate the module
surface. When the modules are connected in series,
voltage is cumulative. When the modules are
connected in parallel, current is cumulative. As a
result, a large-scale PV system can produce high
voltage and current which could present an increased
hazard and may cause serious injury or death.
5. Do not connect the PV modules directly to the
loads such as motor since the variation of the
output power depending on the solar irradiation
causes damage for the connected motor.
1: In the case of a brushless motor, the lock
function becomes active and the hall IC is most
likely to be damaged.
2: In the case of a brush type motor, the coil is most
likely to be damaged.
6. In case of snow build-up, snow would slide easier on
the smooth surface of the module than other parts of
the roof. Snow may suddenly slide, fall off the roof
and hit nearby objects/areas. Take preventive
measures (e.g. snow stopper) when there is possible
risk such case would cause an injury or a damage.
< GENERAL SAFETY >
1. Consult local codes and other applicable laws
concerning required permits on regulations
concerning installation and inspection requirements.
2. Before installing a PV module, contact appropriate
authorities to determine permit, installation and
inspection requirements that should be followed.
3. Install PV modules and ground frames in
accordance with applicable rules and regulations.
4. PV modules should be installed and maintained by
qualified personnel. Only installer/servicer personnel
should have access to the PV module installation site.
5. No matter where the PV modules are installed,
either roof mounted construction or any other type
of structures above the ground, appropriate safety
practices should be followed and required safety
equipment should be used in order to avoid
possible safety hazards. Note that the installation
of some PV modules on roofs may require the
addition of fireproofing, depending on local
building/fire codes.
6. In the case that the PV modules are non-integral
type, the module is to be mounted over a fire
resistant roof.
7. Please use PV modules with same cell size within
series.
8. Follow all safety precautions of other components
used in the system.
GENERAL INSTRUCTIONS
9. In order to avoid a risk of injury or electrical shock,
do not allow anyone to approach the PV module if
the person has little knowledge on PV module or
on the measures that should be taken when PV
modules are damaged.
10. Do not shade portions of the PV module surface
from the sunlight for a long time. The shaded cell
may become hot (hot spot phenomenon) which
results in solder joints peeling off. Shading causes
drop in generated power and/or operation failure
of the PV modules.
11. Do not clean the glass surface with chemicals. Do
not let water stay on the glass surface of PV
modules for a long time. This creates a risk of white
efflorescence (glass disease) which may result in
the deterioration of energy generation.
12. Do not install the PV module horizontally. It may
cause dirt or white efflorescence (glass disease)
due to water.
13. Do not cover the water drain gap of the frame.
There is a risk of frost damage when the frame is
filled with water cumulation.
14. When sliding snow load has to be considered, an
appropriate measure has to be taken so that PV
module frames on lower edge of PV modules will
not be damaged.
15. Do not expose PV module to sunlight concentrated
with mirrors, lenses or similar means.
16. Turn off inverters and circuit breakers immediately,
should a problem occur.
17. In case the glass surface of a PV module is broken,
wear goggles and tape the glass to keep the
broken pieces in place.
18. A defective PV module may generate power even
if it is removed from the system. It may be
dangerous to handle the PV module while exposed
to sunlight. Place a defective PV module in a carton
so PV cells are completely shaded.
19. In case of series connection, the maximum open
circuit voltage must not be greater than the
specified maximum system voltage. The voltage is
proportional to the number of series. In case of
parallel connection, please be sure to take proper
measure (e.g. fuse for protection of module and
cable from over current, and/or blocking diode for
prevention of unbalanced strings voltage) to block
the reverse current flow. The current may easily
flow in a reverse direction.
20. Keep modules away from children.
< HANDLING SAFETY >
1. Do not cause an excessive load on the surface of
PV module or twist the frame. The glass surface
can easily break.
2. Do not stand or step on the PV module. The
surface glass of PV module is slippery.
3. Do not hit or put excessive load on the glass or
back sheet. The PV cell is very thin and can be
easily broken.
4. Do not scratch or hit at the back sheet. The back
sheet is vulnerable.
5. Do not hit on the junction box or do not pull the
cables. The junction box can crack and break.
6. Never touch junction box or the end of output
cables with 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
handle the wires with rubber-gloved hands 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 of the frame.
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 loosen or remove the screws of the PV
module. It may compromise the joint strength of
PV module and cause corrosion.
12. Do not touch the PV module with bare hands. The
frame of PV module has sharp edges and may
cause injury.
13. Do not drop PV module or allow objects to fall
down on the PV module.
14. Do not try artificially to concentrate sunlight on the
PV module.
15. Do not grab the PV module at only one side. The
frame may bend. Grab the PV module at two sides
facing each other.
< INSTALLATION SAFETY >
1. Always wear protective head gear, insulating
gloves and safety shoes (with rubber soles).
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 you may collapse
because of electric shock.
4. Do not work under rain, snow or windy conditions.
5. Use insulated tools.
6. Do not use wet tools.
7. Do not drop tools or hard objects on PV modules.
8. When installing PV modules far above ground, do
not drop any object (e.g., PV module or tools).
9. Make sure flammable gases are not generated
near the installation site.
10. Completely cover the PV module surface with an
opaque material during PV module installation and
wiring.
11. 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.
12. Due to the risk of electrical shock, do not perform
any work if the terminals of PV module are wet.
13. 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.
14. Do not unplug the connector if the system circuit is
connected to a load.
15. Do not stomp on the glass at work. There is a risk
of injury or electric shock if glass is broken.
16. Do not work alone (always work as a team of 2 or
more people).
17. Wear a safety belt if working far above the ground.
18. Do not wear metallic jewelry which can cause
electric shock during installation.
19. Do not damage the back sheet of PV modules
when fastening the PV modules to a support by bolts.
20. Do not damage the surrounding PV modules or
mounting structure when replacing a PV module.
21. 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.
22. 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.
23. Cables shall be located so that they will not be
exposed to direct sunlight after installation to
prevent degradation of cables.
24. If batteries are used with modules, follow safety
precautions of the battery manufacturer.
25. In case of extreme snow build-up, the weight of the
snow may cause the module's frame to deform.
Take appropriate preventative measures to
minimise 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 of the PV module is the measured 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 11. 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.
Figure 1. SERIES for more voltage
+
-
-
-
+
+
Figure 2. PARALLEL for more current
F
+
-
-
-
+
+
5
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.
7. INSTALLATION
Refer to installation manual of PV module.
8. ELECTRICAL RATINGS
Refer to installation manual of PV module.
9. GROUNDING
The frame grounding must consider the local requirement
and regulation at the site of installation. 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.
SIDE FRAME
WIRE
WIRE INSERT
Figure 3. Example of acceptable ground connection
Each PV module has a hole on the side frame for either
a bolt, nut and washer grounding the module to the frame,
a ground lug fastened by bolt or screw, or appropriate
screw (hardware not provided). Near the hole for ground,
either "
" or " G " is indicated as ground symbol. 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 positive electrical contact with the frame.
The ground wire must be considered within the local
requirement and regulation at the site of installation.
10.
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 bolt holes provided as
described in the Specifications. Although Sharp does not
specify or warrant frame clips or clamps, using frame clips
(not provided) or clamps (not provided) is also possible
when they are designed for PV modules and with
minimum dimensions on the sides of the module in
accordance with the instructions and drawings provided.
If using frame clips or clamps, the modules should be fixed
rigidly and there shall be no damage to the modules by
deforming mounting structure against design load. The
Sharp module guaranty may be void if customer-selected
frame clips which are improper or inadequate with respect
to the module properties (including strength or material)
or installation. 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 secure their
electric 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.
11.
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, clean the
glass surface only with a soft cloth using water. 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, please check the
connection of wiring and the state of the jacket of wires
every now and then.
-
+
For PV modules with anti-reflective coating glass
(NU-R250J5 to NU-R240J5, ND-R250A5 to ND-R225A5
and ND-R245A6 to ND-R235A6), do not touch the glass
since finger prints or stains will easily mark the glass. If
dirt build-up becomes excessive, clean the glass surface
with water only.
-
+
HEXAGON NUT
TOOTHED LOCK WASHER
WIRE BINDING LUG
HEXAGON HEAD BOLT
SCREW TERMINAL
Werbung
