Citel on perustettu vuonna 1937 Ranskassa ja on keskittynyt koko olemassaolonsa ajan sähköjärjestelmien suojaustuotteisiin. 75-vuoden osaaminen ylijännitesuojauksesta kulminoituu hyvin luotettavaan ja pitkäikäiseen VG-teknologiaan. Asiakkaan asennusten helpottamiseksi Citel tuotteissa on globaalit hyväksynnät.
https://citel.fr/en
Surge Protection Devices (SPDs) are units combining several protection components. The may be used by the installer or by the end customer. They are designed to be incorporated in an installation to protect all electric, electronic and data-processing equipment from transient overvoltages. The CITEL range: wide and complete. Whether standard or custom solutions, we cover all our clients needs. This ambition guides our daily activities. Adapting to local markets specific needs, risk levels and applications, we offer protection for low voltage installations, communication networks, photovotaic systems as well as LED lighting. The millions of SPD’s made and sold each year are proof positive of the high-quality standards, consistency and reliability of our products for our clients and partners around the world.
The phenomena were first characterized and a series of standardized waves created (1.2/50µs voltage wave and 8/20µs and 10/350µs current waveforms), then a number of standards defining surge arrester performance were issued, among them :
Surge Protectors for Low-Voltage installations:
- NF EN 61643-11 (France)
- VDE 0675-6-11 (Germany)
- EN 61643-11 (Europe)
- UL1449 (USA)
- IEC 61643-11 (International)
Surge Protectors for Telecom equipment:
- IEC 61643-21 (International)
- ITU-T recommendations K11, K12, K17, K20, K21, K36 (International)
- UL 497 A/B (USA)