27
RS/03-GT-016-2019
Date: 2021-02-01
2. In order to avoid bad or damaged connection of the cable and connector, the cable and junction box
caused by human factors, affecting the electrical safety or service life of the product, it is recommended
that the force applied between the cable and connector, cable and junction box shall not be greater
than 60N during the installation, dismantling, maintenance and any other related process of the
Product
10. Electrical Connection
The Direct Current (DC) generated by the PV system can be converted to Alternating Current (AC) and
connected to the public power grid. Different regions may have different policies, laws and regulations
to stipulate the installation and grid-connection requirements of PV systems. Therefore, during the
design, installation and grid-connection of PV system, please comply with the local policies, laws and
regulations.
PV modules can obtain different current and voltage outputs through series connection and parallel
connection. Read this installation manual carefully before electrical connection and installation. Please
design and connect according to the current and voltage required by customers. Before connection,
please ensure that the connection part is free from corrosion, and keep it clean and dry.
In order to ensure the normal running of the system, when connecting modules or loads, please ensure
that the polarity of the cable connection is correct. If the modules are incorrectly connected, the bypass
diodes and junction boxes may be damaged. PV modules can be connected in series (Fig. 10-1), in
parallel (Fig.10-2) and in series-parallel (Fig. 10-3). The number of serial or parallel connections shall
be reasonably designed according to the system configuration. Also note that if the number of parallel
connections ≥2, there must be an over-current protection device on each string assembly.
Fig. 10-1 Series Connection