A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lightning and overvoltage protection in buildings: comparison and advantages of new technical solutions
Active components for state-of-the-art Surge Protection Devices (SPDs) for direct lightning and overvoltage protections in buildings with power supply up to 1,000 V AC are basically airgaps or combined devices consisting of airgaps with triggering electronics and varistors with 1.6+/-4 kA capability for a 10/350 mikrosec shape stroke. SPDs follow the two main world standardisations, i. e. the American ANSI/IEEE with Imax 50 kA or 100 kA pulse of shape 8/20 mikrosec and the IEC and its derivative EN with Iimp 12.5 kA for less exposed areas, and 25 kA 10/350 microsec shape, per phase conductor in exposed areas. These direct protection techniques have their advantages and disadvantages. As the existing states of the world's leading SPDs are not optimal, new families of active components for protection SPDs are being created, measured and tested, in laboratories and in the field The new SPD components could be declared as universal, complete lightning and overvoltage protection in the complete range, according to both leading standards covering all classes of SPDs, i.e. class I + class II + class III at a time. The new devices will be 200 % to 900 % smaller in volume and materials due to the new active components.
Lightning and overvoltage protection in buildings: comparison and advantages of new technical solutions
Active components for state-of-the-art Surge Protection Devices (SPDs) for direct lightning and overvoltage protections in buildings with power supply up to 1,000 V AC are basically airgaps or combined devices consisting of airgaps with triggering electronics and varistors with 1.6+/-4 kA capability for a 10/350 mikrosec shape stroke. SPDs follow the two main world standardisations, i. e. the American ANSI/IEEE with Imax 50 kA or 100 kA pulse of shape 8/20 mikrosec and the IEC and its derivative EN with Iimp 12.5 kA for less exposed areas, and 25 kA 10/350 microsec shape, per phase conductor in exposed areas. These direct protection techniques have their advantages and disadvantages. As the existing states of the world's leading SPDs are not optimal, new families of active components for protection SPDs are being created, measured and tested, in laboratories and in the field The new SPD components could be declared as universal, complete lightning and overvoltage protection in the complete range, according to both leading standards covering all classes of SPDs, i.e. class I + class II + class III at a time. The new devices will be 200 % to 900 % smaller in volume and materials due to the new active components.
Lightning and overvoltage protection in buildings: comparison and advantages of new technical solutions
Murko, Vladimir (author)
2004
6 Seiten, 12 Bilder, 7 Quellen
Conference paper
English
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