General Installation Manual
© Feb 2012, SANYO Electric Co., Ltd. All Rights Reserved
3
Ground Location
(smaller holes for self-tapping screw)
Junction Box
Label
Backside
The ground holes
are on the backside of
the module frame.
Figure 3.1
Module Ground Position
Ground Location
(larger holes for bolt and nut)
P V U ‑ B 5 0 . 2
6 0 0 V
P V U ‑ B 5 0 . 2
I P 6 5
time of shipment, Sanyo guarantees the output level of its
modules to be -0/+10% against Rated Power in
SPECIFICATIONS based on Sanyo’s factory inspection at
STC conditions. Under real conditions, a photovoltaic module
may experience conditions that produce more current and/or
voltage than reported at Standard Test Conditions. Therefore,
the Isc value of modules should be multiplied by a factor of
1.25 to determine ampacity. An additional factor of 1.25 may
be required for sizing conductors, fuses, disconnects, etc.
Please refer to section 690.8 of the National Electric Code
(NEC) for guidelines. The Voc must be factored according to
the lowest recorded ambient temperature recorded for the
location where the modules will be installed. Please refer to
section 690.7 of the NEC for more information regarding
voltage temperature factors.
3) The current output for the modules shown in the
SPECIFICATIONS section is measured at Standard Test
Conditions. These conditions may not be frequently observed
in actual practice.
Mechanical Loading
•
The modules should be mounted at the four (4) quarter points
by the means shown in Figure 2.
•
This method offers a maximum load of 2,880N/m2 (60PSF) in
a static state on the module surface.
Note: This mechanical loading value was tested using the
mounting device specified in section “Notes on Installation”.
WIRING
General
•
All wiring should be done in accordance with applicable
electrical codes.
•
Wiring methods should be in accordance with the NEC in USA
or CEC in Canada.
•
A qualified, licensed professional should do all wiring.
•
Wiring should be protected to help ensure personal safety and
to prevent damage.
•
All modules connected in series should be of the same model
number and/or type.
•
Do not connect modules in parallel without using a connection
box that connects appropriate FUSE for each series string or
each module.
•
Do not disconnect terminals while PV modules generate
electricity and connect electrical load to avoid the hazard of
electrical shock.
•
To avoid the hazard of electric shock and sparks, please
connect each cable after confirming the polarity of them is
correct.
•
Cable conduits should be used in locations where the wiring is
inaccessible to children or small animals.
Module Wiring
•
The number of modules that can be wired in series is
recommended to be ten (10) or fewer. If connecting eleven
(11) modules in series, check local temperature conditions
and follow the National Electric Code (690.7) to ensure
compliance with maximum voltage limitations.
•
Modules are not designed for “off-grid” or battery charging
systems, because of their operating voltage. Therefore, it is
not recommended to use them for charging batteries.
•
These modules contain factory installed bypass diodes. If
these modules are incorrectly connected to each other, the
bypass diodes, cable, or junction box may be damaged.
Array Wiring
•
The term “array” is used to describe the assembly of several
modules on a support structure with associated wiring.
•
Use copper wire which insulation is sunlight resistant and can
withstand the maximum possible system open circuit voltage.
•
Interconnection of modules must be performed in a
professional fashion. Wires should be secured and only
reasonable slack should be allowed.
•
Check local codes for requirements.
Earth Ground Wiring
•
All modules should be grounded. All structures or metallic
components in direct contact with the modules or electric
wires should be properly grounded too. To avoid the hazards
of electric shock or fire, modules should be grounded by the
frame only at the locations marked in this manual (see
grounding methods below).
•
The array frame shall be grounded in accordance with NEC
Article 250 (USA) or the CEC in Canada.
•
Bonding shall be by a positive means, such as clamping,
riveting, bolted or screwed connectors, or welding, soldering
or brazing. If the bonding means depends upon screw threads
two or more screws or two full threads of a single screw must
engage the metal
•
Great care should be exercised to ensure that corrosion
caused by the grounding means be avoided.
•
Corrosion can increase the resistance of the grounding
connection on the module, or can even cause the grounding
connection to fail entirely. Corrosion can be caused by the
effects of weather, humidity, dirt and so on. It can also be
caused when two dissimilar metals are in contact (galvanic
reaction).
¾
The module frame material is aluminum/magnesium alloy.
