Brochure/Catalogue

Photovoltaic application example
Standards and requirements
The current standards and directives for overvoltage
protection must always be taken into account in the design
and installation of any photovoltaic system.
The European draft standard DIN VDE 0100 part 712/
E DIN IEC 64/1123/CD (Erection of low voltage systems,
requirements for special equipment and facilities;
photovoltaic power systems) and the international
installation specications for PV facilities – IEC 60364-7-
712 – both describe the selection and installation of surge
protection for PV facilities. They also recommend surge
protection devices between the PV generators.
In its 2010 publication on surge protection for buildings
with a PV installation, the Association of German Property
Insurers (VdS) requires > 10 kW lightning and overvoltage
protection in accordance with lightning protection class III.
To ensure that your installation is future-safe, it goes without
saying that our components fully comply with all
requirements.
Furthermore, a European standard for surge voltage
protection components is in preparation. This standard will
specify to what extent surge voltage protection must be
designed into the DC side of PV systems. This standard is
currently EN 50539-11.
A similar standard is currently already in force in France – the
UTE C 61-740-51. Weidmüller‘s products are currently being
tested for compliance with both standards so that they can
provide an even higher level of safety.
Area of roof after damaging event
F
Surge protection for photovoltaic systems
F.32028840000