heating and array current losses.
» In a system that uses a battery, blocking diodes are typically placed between the battery and the module output to
prevent battery discharge at night and rainy weather.
» Diodes that are used as blocking diodes must have a:
» a) Rated Average Forward Current [IF(AV)] above the maximum system current at the highest module
operating temperature.
» b) Rated Repetitive Peak Reverse Voltage (VRRM) above the maximum system voltage (Vmax) at the
lowest module operating temperature (IEC: Vmax=1000V).
Battery
» When solar modules are used to charge batteries, the battery must be installed in a manner which will protect the
performance of the system and the safety of its users. The battery should be away from the main flow of people and
animal traffic. Select a battery site that is protected from sunlight, rain, snow, debris, and is well ventilated. Most
batteries generate hydrogen gas when charging, which is explosive. Do not light matches or create sparks near the
battery bank. When a battery is installed outdoors, it should be placed in an insulated and ventilated battery case
specifically designed for the purpose.
Cable and other components
» Ensure that all components meet the requirements of the system´s maximum voltage, current, moisture and
temperature when they are exposed to sunlight. We recommended that all wiring and electrical connections comply
with the appropriate national electrical code.
» Under normal condition, a photovoltaic module is likely to experience conditions that produce more current and/or
voltage than reported at standard test conditions.
Accordingly, the values of Isc and Voc marked on this module should be multiplied by a factor of 1.25 when
determining component voltage ratings, conductor current ratings, fuse sizes and size of controls connected to the PV
output.
» Only cables with one conductor are to be used recommended to be 4~6 mm², length: 1000mm, temperature, range: -
40ºto 90.
2.4) THE REQUIREMENTS FOR DIFFERENT TYPES OF MOUNT
Ground mount
» Select the height of the mounting system to prevent the lowest edge of the module from being covered by snow for
a long time in winter in areas that experience heavy snowfalls.
» In addition, assure the lowest portion of the module is placed high enough so that it is not shaded by sand and
stone driven by wind.
Roof mount
» a) When installing a module on a roof or building, ensure that it is securely fastened and cannot fall as a result of
wind or snow load.
» b) The modules are supported parallel to surface of the building wall or roof. Clearance between the module frames
and surface of the wall or roof is required to prevent wiring damage and to allow air to circulate behind the module.
The standoff height should be at least 100mm (3.94in). The recommended stand-off height is 115mm (4.53in).» c) The
roof installation of modules may affect the fireproof performance of building structure.
» d) The modules must be installed onto a Classified Roofing
system. The modules are Class C. You can mount them
over a Class C, B or A roof. The amount of area the modules cover may degrade the roof‘s original fire rating in some
locations. Do not install modules on a roof or building during strong winds in case of accident.
Pole mount
» When installing a module on a pole, choose a pole and module mounting structure that should withstand anticipated
winds for the area.
3) MOUNTING METHODS
To prevent bending, vibration, mechanical stress or warpage, mount the module onto a flat contact surface. The
minimal distance between mounted modules should be no less than 20 mm. Use all the mounting points provided and
avoid direct contact between glass and metal (e.g. mounting rails).
