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2. Components
We define two types of non-linear components used in surge arresters: limiting components and switching components. These terms are not very meaningful. We often use the more common terms of non-linear components, the best-known of which is the varistor, and surge suppressors, the best-known of which is the spark gap.
In the first case, the current-voltage characteristic varies continuously. A typical example is zinc oxide (ZnO) varistors (figure 4 ). The parameter to be taken into account is the injected lightning current and the component's response to this stress. Once the surge has passed, the mains current no longer flows through the component.
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Components
Low-voltage networks
Bibliography
Software tools
JUPITER: lightning risk analysis software in compliance with NF EN 62305-2, SEFTIM, France.
Websites
Lightning Protection Association http://www.apfoudre.fr/
SOS lightning http://seftim.com/?page_id=1405
Standards and norms
- Low-voltage arresters – Part 11: Surge arresters connected to low-voltage systems – Requirements and test methods. - NF EN 61643-11 - 05-2014
This standard covers arresters for low-voltage AC networks. Specific versions for DC applications are under development (IEC 61643-31 for arresters for photovoltaic applications and IEC 61643-41 for other DC applications. In Europe, there is already a standard for...
Regulations
ICPE Order: Order of May 11, 2015 amending a series of ministerial orders to take into account the new nomenclature of classified installations for environmental protection coming into force on 1 er June 2015 as part of the transposition of directive no. 2012/18/EU of July 4, 2012. This decree imposes lightning risk analyses on certain classified facilities, and depending on the...
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Manufacturers – Suppliers – Distributors (non-exhaustive list)
French manufacturers are members of GIMELEC and IGNES.
Installers are grouped together within the FFIE.
Organizations – Federations – Associations (non-exhaustive list)
GIMELEC – Groupement des industries de l'équipement électrique, du contrôle-commande et des services associés
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