WEL/ IM/ 05/ 18.03.2016
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These holes shall be used only for grounding purposes and not for mounting purpose. The grounding wire
must be properly fastened to the Module frame to assure good electrical contact. Use the recommended
type or an equivalent connector for this wire.
Module frames should be connected to an earth ground for safety and protection from lightning. A
good connection between the grounding hardware is essential for an effective ground. The anodization on a
Module frame provides a coating to minimize the corrosion due to weather and it acts as a barrier that
reduces the effectiveness of the grounding connection. For an adequate ground, the grounding
hardware should pierce the anodization layer. WAAREE Modules are provided with earthing hole and
same must be used for the purpose.
Proper grounding is achieved by bonding the Module frame(s) and all metallic structural members together
continuously using a suitable grounding conductor. The grounding conductor or strap may be copper,
copper alloy, or any other material acceptable for use as an electrical conductor. The devices have to be
installed in accordance with the grounding device manufacturer’s specified instructions. The grounding
must be cross verified for its proper continuity.
Note: -
“Please avoid negative bias of the cells with respect to the grounded frames”.
ELECTRIC WIRING
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All wiring should be done in accordance with applicable electrical codes.
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All wiring should be done by a qualified, licensed professional. Wiring should be protected to help
ensure personal safety and to prevent its damage.
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Modules can be wired in series to increase voltage. Connect wires from positive terminal of one Module
to the negative terminal of the next Module. All Modules connected in series should be of the same
model number and/or type.
•
Connect Modules in parallel to increase current. Connect wires from the positive terminal of the one
Module to the positive terminal of the next Module. Do not connect Modules in parallel without using a
connection box.
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WAAREE Modules contain factory installed bypass diodes. If the Modules are incorrectly connected to
each other, the bypass diodes, cables, or junction box may be damaged.
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The term “array” is used to describe the assembly of several Modules on a support structure with
associated wiring. Use wire that is sunlight resistant and is insulated to withstand the maximum possible
system open circuit voltage. Check your local codes for requirements.
•
Use system wiring with suitable cross-sectional areas and connectors that are approved for use at the
maximum short-circuit current of the Module.
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The maximum open circuit voltage of the system must not be greater than the specified maximum
system voltage for the Module. The Module open-circuit voltage (Voc) increases with decrease in
temperature and therefore allowable maximum system voltage must take into account the lowest
temperature that is attainable in the area where the Module is intended to be used.
