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Faulty connections can result in arcs and electrical shock. Check that all electrical connections are securely
fastened. Make sure that all locking connectors are fully engaged and locked.
6.4 Bypass Diodes
The junction boxes used with Xtremesolar Modules contain bypass diodes wired in parallel with the PV cell
strings. In the case of partial shading, the diodes bypass the current generated by the non-shaded cells,
thereby limiting Modules heating and performance losses. Bypass diodes are not over-current protection
devices.
Bypass diodes divert current from the cell strings in the event of partial shading. See Figure 7 for a diagram
showing how the cell strings are electrically connected with the diodes.
In the event of a known or suspected diode failure, installers or maintenance providers should contact SFCE.
Never attempt to open the junction box by yourself.
7. GROUNDING
The grounding requirements must be checked in accordance with the applicable regulations and standards
before work is started.
Xtremesolar Modules use an anodic oxidized aluminum frame to resist corrosion. So the frame of Modules
must be connected to the equipment grounding conductor to prevent thunder and static injury.
The grounding device must fully contact with the inside of the aluminum alloy, and must penetrate the
surface of the frame oxidation film.
Please don't drill any additional grounding hole on the frame of the Modules.
For optimal performance, SFCE recommend the DC cathode of the Modules array is connected to ground,
Failure to comply with this requirement may reduce the performance of the system.
The grounding method must not result in direct contact of dissimilar metals with the aluminum frame of the
Modules that will result in galvanic corrosion.
The frame rails have pre-drilled holes marked with a grounding sign. These holes should be used for
grounding purposes and must not be used for mounting the Modules.
The following grounding methods are available.
7.1 Grounding by Using Grounded Clamp