Spark gap isolation
December 2007
Electrical Power & Protection
DEHN's EXFS range of isolating spark gaps is designed for installation on conductive system parts in explosive areas, where direct earth connection is not possible. The ATEX-certified devices meet IEC 62305 requirements for lightning and equi-potential bonding in hazardous areas.
The explosion-proof EXFS L 50 kA and 100 kA models are designed specifically for bonding in dangerous environments and are used in cathodic protection. Available with a flexible cable to suit 20-320 mm flanges, the devices are installed at insulating flanges or joints.
The type EXFS KU is designed for earth connection in systems to protect against the effects of a lightning strike. Suitable for indoor and outdoor use the units are enclosed in a damp-proof PVC housing and are ideal for installation at insulating couplings.
For more information contact Paul Van As, Surgetek, +27 (0)11 792 1303, [email protected], www.surgetek.co.za
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