YURAKU PTE LTD
11 Collyer Quay
#10-04 The Arcade
Singapore 049317
www.yuraku.com.sg
•
To avoid galvanic corrosion, use of stainless steel fastening materials are the preferred
choice, but galvanized or hot-dipped zinc plated fasteners are acceptable.
5.3 Module Wiring
5.3 Module Wiring
5.3 Module Wiring
5.3 Module Wiring
•
The modules may be wired in series to produce the desired voltage output. Do not
exceed the maximum system voltage indicated in the specification sheet of the modules.
•
The modules may be combined in parallel to produce the desired current output. Each
series string or module may be required to be fused prior to combining with other strings.
Please refer to the NEC Article 690 for additional fusing requirements.
•
Modules shall not be wired in parallel without maximum over current protection.
•
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.
•
In order to minimize voltage surges which could be induced by indirect lightning strikes,
DC cables of the same string should be bundled together so that loops are kept as small
as possible. String configurations should be checked before system commissioning. If the
open circuit voltage (Voc) and the short circuit current (Isc) deviates from the
specifications, this could indicate a configuration fault. Correct DC polarity should be
observed at all times.
5.4 Array Wiring
5.4 Array Wiring
5.4 Array Wiring
5.4 Array Wiring
•
The term “array” is used to describe the assembly of several modules on a support
structure with associated wiring.
•
National electrical codes and regulations need to be followed when selecting cables.
For field connections, recommend using minimum 4 mm
2
or #12 AWG copper wires
insulated for a minimum of 90°C.
•
Cables should use UV-resistant cable ties, or other sunlight-resistant device and are
insulated to withstand the maximum possible system open circuit voltage. Loose and
unsecured cables should be protected from mechanical damage. Avoid, as far as
possible, exposing the cables to direct sunlight.
•
Check your local codes for requirements.