Lightning and surge protection for cellular sites
March 2014
Electrical Power & Protection
For more than 25 years, Dehn has been successfully developing customised products and protection solutions for cellular sites. This offering includes planning and selection of components for earth-termination and external lightning protection systems, as well as the use of lightning current and surge arresters.
DEHNvap CSP combined arresters, which can be universally used for TN-C, TN-S and TT systems, are specifically designed for mobile communication applications. When using combined arresters, energy coordination with system and equipment technology is an important criterion. DEHNvap CSP has been extensively tested to ensure its coordination with the integrated input circuits of power supply units.
Innovative mobile radio systems rely on remote radio heads. Optical fibre cables, which have significantly higher transmission ranges than conventional coaxial cables, transmit data between the remote radio heads and the base station. The remote radio heads are supplied by a separate 48 VDC line protected by DEHNsecure DC lightning current arresters.
High-frequency arresters such as DEHNgate are used to protect radio transmission technology based on conventional coaxial high-frequency cables, for example in GSM railway systems or digital radio systems of security authorities. DEHNrapid LSA lightning current and surge arresters are used in service area interfaces for land-line connections or the transmission of the sending signal of microwave links over the last mile.
For more information contact Alexis Barwise, Dehn Protection Southern Africa, +27 (0)11 704 1487, [email protected], www.dehn-africa.com
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