2
solar system is consisted of PV solar modules,
controller, inverter, and storage battery.
Modules can be used in roof PV solar systems,
PV stations, building, and other electric
generation application etc widely.
4 CODES and REGULATIONS
The mechanical and electrical installation of PV
systems should be performed in accordance
with all applicable codes; including electrical
codes, building codes, and electric utility
interconnect requirements.
Requirements may also vary with system
voltage, and for DC or AC application. Contact
local authorities for governing regulations.
Whatever district, local standards should also
be followed in such installations.
Use only stranded or solid copper single
–conductor type PV wire or USE-2 cable, rated
sunlight resistant, for modules and interconnect
wiring that is exposed to weather.
5 MECHANICAL INSTALLATIONS
5.1 Mounting Site
Modules can be used on land except for
corrosive salt area and sulfurous area.
Excluded applications include, but are not
limited to, installations where modules are likely
to come in contact with any salt water or where
likely to become partially or wholly submerged
in fresh or salt water, examples of which include
use on boats, docks and buoys. Don’t install
modules in a location where it would be
immersed in water or continually exposed to
water from a sprinkler or fountain etc.
Actual maximum allowable wind speed may be
influenced by module type, mounting
configuration, location, and other factors. In no
case should modules be exposed to pressures
greater than 112.9pounds per square foot
(551Kg/m2) of uniformly distributed wind, snow,
or other loading.
The modules have been tested by TUV for a
maximum front loading of 5400Pa,backside
loading of 2400Pa.
Don’t install modules near naked flame or
flammable materials.
When choosing a site, avoid trees, buildings or
obstructions. Modules should be mounted to
maximize direct exposure to sunlight and to
eliminate or minimize shadowing. Even partial
shadowing can substantially reduce module
and system output. Furthermore, partial
shadowing can elevate the shaded portion’s
internal temperature, which may lower the
output and shorten module life.
5.2 Orientation of installations
Modules may be mounted at any angle from a
vertical orientation to a horizontal one. The
appropriate fixed tilt angle and azimuth
orientation should be used in order to maximize
the exposure to sunlight.
Incorrect orientation of modules installation will
result in loss of power output. Modules
connected in series should be installed at same
orientation and angle. Different orientation or
angle may cause loss of power output due to
difference of amount of sunlight exposed to the
modules.
In the Northern Hemisphere, modules should
face south, and in the Southern Hemisphere,
modules should face north.
5.3 Module tilt angle
Modules produce the most power when they
are pointed directly at the sun. For installations
where modules are mounted to a permanent
structure, modules should be tilted for optimum
winter performance. As a rule, if the PV system
power production is adequate in the winter, it
will be satisfactory during the rest of the year.
The module tilt angle is measured between the
modules and the ground.
5.4 Mounting
