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Full Version: Solar Power System Installation Manual
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Solar Power System Installation Manual

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UL REQUIRED INFORMATION:

Artificially concentrated sunlight shall not be directed on the module.
“Rated electrical characteristics are within 10 percent of measured values at Standard Test Conditions of: 1000 W/m2,
25°C cell temperature and solar spectral irradiance per ASTM E 892 or irradiation of AM 1.5 spectrum.”
Under normal conditions, a photovoltaic module may experience conditions that produce more current and/or
voltage than reported at Standard Test Conditions. Accordingly, the values of ISC and VOC marked on UL Listed
modules should be multiplied by a factor of 1.25 when determining component voltage ratings, conductor capacities,
fuse sizes and size of controls connected to the module output. Refer to Section 690-8 of the National Electric Code
for an additional multiplying factor of 1.25 which may be applicable.
Wiring methods should be in accordance with the NEC.
Install wires and cables with appropriate hardware in accordance with applicable electrical codes.
Protective earth grounding of the individual photovoltaic modules is achieved by securing the modules to the
mounting frames. The assembly instructions should be closely followed, in order to ensure a reliable ground
connection.
The framing system shall be grounded in accordance with NEC Article 250.


CAUTIONS REGARDING INSTALLATION OF SOLAR POWER SYSTEMS


This manual contains critical information regarding
electrical and mechanical installation and safety
information which you should know before starting
installation.
The information in this manual is based on Sharp’s
knowledge and experience, however, the information
and suggestions do not constitute a warranty.
Sharp Electronics Corporation reserves the right to make
changes to the product, specifications, or manual without
prior notice.
Do not locate systems near coastal locations or other
salt water locations or C5 locations as classified by ISO.
Minimum distance is 0.3 miles from the body of water.
Do not locate in a corrosion prone area. The modules
and system are UL listed to standard 1703. The UL 1703
test is performed at 1.5 times the design load of 30 lbs
per square foot, or 45 lbs per square foot. The system has
been load tested by Sharp to 50 PSF. Building departments
often require a design safety factor of 1.5 or greater for
structures. The maximum structural loading listed in this
guide, does not include an added safety factor. Check with
your local building department for code information.


Wiring from solar arrays to the inverter (connector box).

• Follow the provisions of the National Electrical
Code. Adhere to all of the NEC. Pay special
attention to Article 110, Chapter 2, Article 250,
Chapter 3, Articles 300 & 310, 480 & 690.
• For wiring through walls, protect the cables with
metal conduits, flexible metal conduits, or other
protection. Failure to do so can result in shock
and short circuits. Always use conduit to protect
sections of array output cables that are exposed
to sunlight.


INSPECTION OF ROOF STRUCTURE

It is important to inspect the structural integrity of the roof
and the durability of the roof materials. The SRS mounting
structure and solar modules require a strong base for
durable and reliable operation in local environments.
Always wear a safety harness when working on the roof.
Inspect the roof surface in the area of the installation for
cracks, water leakage, and roofing material quality and
uniformity. This is especially important if the roof is older
than 10 years.