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8. GROUNDING
Before installing your solar system, contact local authorities
to determine the necessary grounding. Attach all module
frames to an earth ground in accordance with the National
Electrical Code (NEC). Proper grounding is achieved by
connecting the module frame(s) and structural members
contiguously one to another using a suitable "grounding
conductor". The grounding conductor, or strap, may be
copper, copper alloy, or another material acceptable for use
as an electrical conductor per NEC. The grounding
conductor must then make a connection to earth using a
suitable earth ground electrode. Ensure positive electrical
contact through the anodizing on the module's frame by
utilizing one of the following grounding methods. Attach the
grounding conductor:
(1) to one of the 0.28" diameter (7 mm) holes marked
'ground' with a bolt or screw assembly that incorporates
a bonding or external tooth washer, or a serrated
screwhead.
(2) to electrically conductive metal, such as that of a
support structure, which has been bonded to the
module frame through a bonding or external tooth
washer, or a welded, soldered for brazed joint or other
suitable means.
(3) with two or more screws, or two full threads of a single
screw engaging the module frame metal.
9. BLOCKING DIODES
In systems utilizing a battery, blocking diodes are typically
placed between the battery and the solar module output to
prevent battery discharge at night. KC series modules are
made of polycrystalline cells with high electrical back flow
resistance to nighttime battery discharging. As a result, KC
series modules do not contain a blocking diode when
shipped from the factory. Most PV charge regulators and
inverter incorporate nighttime disconnect feature, however.
10. BYPASS DIODES
Partial shading of an individual module in a source circuit
string (i.e. two or more modules connected in series) can
cause a reverse voltage across the shaded cells within the
module. Module output current is then forced through the
shaded area by the remaining illuminated cells and other
solar modules in series with the partially shaded module(s).
The current forced through the shaded cells within the
module (or modules) causes additional module heating and
severe loss of power. All KC series modules are supplied
with factory installed (non user serviceable) bypass diodes.
The purpose
of
bypass
low-resistance current path around the shaded cells,
thereby minimizing module heating and array current
losses.
The solar modules employ bypass diodes that have:
Rated Average Forward Current [I
maximum system current at highest module operating
temperature.
Rated Repetitive Peak Reverse Voltage [V
maximum system voltage at lowest module operating
diodes is to
provide
] Above
F(AV)
] Above
RRM
temperature.
11. MAINTENANCE
KC series modules are designed for long life and require
very little maintenance. Under most weather conditions,
normal rainfall is sufficient to keep the module glass surface
clean. If dirt build-up becomes excessive, clean the glass
surface only with a soft cloth using mild detergent and water.
USE CAUTION WHEN CLEANING THE BACK SURFACE
OF THE MODULE TO AVOID PENETRATING BACK
SHEET. Modules that are mounted flat (0
should be cleaned more often, as they will not "self clean"
as effectively as modules mounted at a 15 tilt or greater.
Once a year, check the general condition of the wiring and
check to be sure that mounting hardware is tight. Loose
connections will result in a damaged module or array.
KYOCERA Corporation
Corporate Solar Energy Group
6 Takeda Tobadono-cho Fushimi-ku, Kyoto 612-8501,
Japan
Phone : 81-75-604-3476
Fax : 81-75-604-3475
http://www.kyocera.com/
KYOCERA Solar Inc.
7812 East Acoma Drive, Scottsdale, AZ 85260, U.S.A.
Phone : 1-480-948-8003 or 1-800-223-9580
Fax : 1-480-483-6431
http://www.kyocerasolar.com/
KYOCERA Solar Pty Ltd.
Level 3, 6-10 Talavera Road
North Ryde NSW 2113, Australia
Phone : 61-2-9870-3948
Fax : 61-2-9888-9588
http://www.kyocerasolar.com.au/
KYOCERA Solar do Brasil Ltda.
Energia Renovavel LTDA,Rua Mauricio da Costa Faria,
85 22780-280 Recreio dos Bandeirantes
Rio da Janeiro,Brazil
Phone : 55-21-2437-8525
Fax : 55-21-2437-2338
http://www.kyocerasolar.com.br/
KYOCERA Fineceramics GmbH
Fritz Müller Strasse 107, D-73730 Esslingen, Germany
Phone : 49-711-9393-417
Fax : 49-711-9393-450
http://www.kyocerasolar.com.de/
a
KYOCERA Asia Pacific Pte Ltd.
298 Tiong Bahru Road, #13-03/05 Central Plaza
Singapore 168730
Phone : 65-271-0500
Fax : 65-271-0600
http://www.kyocera.com.sg/
KYOCERA (Tianjin) Sales
Binjiang International Hotel 1106,
105 Jianshe Road Heping Dist. Tianjin China
Phone : 86-22-2331-8590
Fax : 86-22-2330-6276
tilt angle)
Trading Corp.
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