SOLUXTEC GmbH
Page 8 of 10
Grounding and substructure
The grounding has to be effected at the metallic substructure. In general the installer has to
ground the rails accordingly. The grounding has to be performed with a self-locking screw. All
metallic parts of the substructure including module frames have to be connected to the main
equipotential bonding of the building. The use of a cable of 10mm² is recommended for this
task. The grounding has to be performed with a section of cable of 16mm² to the main
equipotential bonding. If a lightning protection already exists or is planned the PV-plant has
to be integrated in this concept. In doing so all related engineer standards have to be
respected.
In Europe the technical standard IEC 60364-7-712 has to be respected.
Advice for fire protection
The PV-modules are not explosion-proofed electric elements and must not be installed on
explosive environment. Furthermore the installation cannot be effected near flames or on
inflammable materials. The PV-modules must not be installed on inflammable roofs.
Further notice for wiring
During the development of the PV-plant a small cable loop has to be realized in order to
reduce the impact of an electro-magnetic induction in case of lightning. The surface covered
by the wiring has to be kept as small as possible.
Example of a bad wiring
Example of a good wiring
For the wiring the use of a solar-single-wire cable which resists against Ozone, Weather &
UV is required. The wire should also be free of halogen and should possess a double
insulation. During the wiring please pay attention to the advices given from the cable
manufacturer!
