Title :
The new German electric safety standard for residential PV systems
Author_Institution :
Fraunhofer-Inst. fur Solare Energiesysteme, Freiburg, Germany
Abstract :
Experiences in Germany during the “Thousand-roofs-programme” revealed that many PV power system designers were not aware of the implications of the basic electric standard in Germany, the VDE 0100. They furthermore revealed some uncertainty how to interpret the basic electric standard towards PV power systems. Concerned by this experience, the standardisation committees started to draft a new section for the basic standard, dedicated to the erection of residential PV power systems. The basic concepts and requirements on protective measures of VDE 0100 are introduced and their interpretation for PV systems are discussed. Drawing on PV´s current source characteristic, the new draft permits a very simple system architecture. Using “Class II” modules and “ground-fault and short-circuit-proof” wiring, one may omit string fuses and blocking diodes
Keywords :
electric shocks; photovoltaic power systems; safety; standardisation; standards; Class II modules; Germany; VDE 0100; current source characteristic; electric safety standard; ground fault-proof wiring; residential PV power systems; short circuit-proof wiring; standardisation; Cables; Circuit faults; Conductors; Electrical safety; Fuses; IEC standards; Insulation; Low voltage; Protection; Wires;
Conference_Titel :
Photovoltaic Specialists Conference, 1996., Conference Record of the Twenty Fifth IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-3166-4
DOI :
10.1109/PVSC.1996.564397
