Integrating steel girders, metal sheets, or profiles into lightning protection or equipotential bonding systems often presents a challenge. This is particularly true when protective coatings against corrosion prevent the direct, conductive connection that is essential for effective lightning current discharge or equipotential bonding. The new connection clamp for steel girders from DEHN overcomes this hurdle with a special blade that penetrates coated surfaces up to 0.2 mm without damaging the surface protection. It is therefore particularly suitable for buildings with metallic structures, such as industrial plants, halls, and multi-storey car parks.
Hard as steel: The new connection clamp from DEHN
The clamp is made of high-quality materials and can be used wherever an electrical connection to steel girders, sheets, and profiles is required. With a variable clamping range of 3 to 52 mm, it offers maximum flexibility during installation. The product is approved for use in Zone 2/22 hazardous areas and has a high lightning current carrying capability of up to 100 kA (10/350 μs). It fulfils the requirements of the DIN EN 62561-1 standard and provides a permanently safe, electrically conductive connection even under high loads during a lightning strike.
The clamp is available in various designs and materials, both in stainless steel (V2A) and galvanised steel (HDG), with a double clamp or connection bracket. Suitable for round and flat material as well as cables, it is extremely versatile. Typical applications include lightning equipotential bonding with round wire, the installation of air-termination rods without drilling, or the connection of steel girders to earthing systems using connection lugs. The special 7-segment digits also allow use as a test joint, an additional advantage when it comes to testing or maintenance.
Simon Thaler ⎟ Head of Corporate Communications
Daily and Business Press