Glossary

Verband Deutscher Blitzschutzfirmen e.V. (Associa tion of German Lightning Protection Companies)

Verband der Elektrotechnik, Elektronik und Informationstechnik e.V. (German Association for Electrical, Electronic and Information Technologies)

Verband der Elektrizitätswirtschaft e.V. (German Association of the Electricity Industry)

Verband der Netzbetreiber e.V. beim VDEW (Association of German Network Operators at the VDEW)

Unternehmen des Gesamtverbandes der Deutschen Versicherungswirtschaft e.V. (GDV) mit den Berei chen Brandschutz, Security und Bildungszentrum & Verlag (company of the German Insurance Association which ensures safety in the fields of fire protection, security and training centre & publishing house)

The voltage protection level of a surge protective device is the maximum instantaneous value of the voltage at the terminals of a surge protective device, determined from the standardised individual tests:
¨ Lightning impulse sparkover voltage 1.2/50 μs (100 %)
¨ Sparkover voltage with a rate of rise of 1kV/μs
¨ Measured limit voltage at a nominal discharge current In
The voltage protection level characterises the capability of a surge protective device to limit surges to a residual level. The voltage protection level defines the installation location with regard to the overvoltage category according to IEC 60664-1 in power supply systems. For surge protective devices to be used in information technology systems, the voltage protection level must be adapted to the immunity level of the equipment to be protected (IEC 61000-4-5: 2001).

Ventilation Switch

Voltage Supply / Choke