-19-
Note
：
The installation method of bolt fitting (
NEXTracker
)
is based on the experimental results in Jinko.
The design of the NexTracker tracking bracket, the selection of accessories and the installation of modules
should be completed by a professional system installer, which can refer to Jinko's mechanical load.
The load described in this manual is the design load. When calculating the maximum test load, 1.5 times of
safety factor should be considered.
If the design load is greater than 1067Pa (1600Pa test load), consult the support supplier.
* For details, consult with component suppliers and support suppliers.
3. Wiring and connection
a) Before this procedure, please read the operation instructions of the PV system carefully.
Make wiring by Multi-connecting cables between the PV modules in series or parallel
connection, which is determined by user’s configuration requirement for system power,
current and voltage.
b) PV module connected in series should have similar current. Modules must not be connected
together to create a voltage higher than the permitted system voltage(1500VDC). The
maximum number of modules in series depends on system design, the type of inverter used
and environmental conditions.
c) The maximum fuse rating value in an array string can be found on the product label or in the
product datasheet. The fuse rating value is also corresponding to the maximum reverse
current that a module can withstand. Thus based on the maximum series fuse rating of
module and local electrical installation criteria, make sure the modules strings in parallel for
connection need to be assembled with appropriate string fuse for circuit protection.
d) Open the combiner box of the control system and connect the conductor from the PV arrays
to the combiner box in accordance with the the design and local codes and standards. The
cross-sectional area and cable connector capacity must satisfy the maximum short-circuit
of the PV system (for a single component, we recommended that the cross-sectional area
of cables be 4mm
2
and the rated current of connectors be more than 10A), otherwise cables
and connectors will become overheating for large current. Please pay attention to the
temperature limit of cables is 85
℃
.
e) Follow the requirements of applicable local and national electrical codes.
f) These modules contain factory installed bypass diode .if these modules are incorrectly
connected to each other, the bypass diodes, cable or junction box maybe damaged.
g) It is recommend to use negatively grounded inverters to avoid the PID effect for non-PID
free modules.
h) For water projects, the project system design recommends the installation of inverter
