Wind Power Cable Clamps (Type WPC)

Particularly in offshore wind farms and other humid or salty environments, cable fastenings must be corrosion-resistant, e.g. by using materials such as stainless steel or special coatings. With 1,200 hours of resistance to red rust, the special STAUFF zinc/nickel surface offers reliable corrosion protection that goes far beyond the usual market standards - even after transport, processing and installation of the components. This is confirmed by tests in the salt spray chamber in accordance with DIN EN ISO 9227, making it a genuine alternative to stainless steel components.

Cable fastening systems must be designed to withstand the thermal expansion of cables at different temperatures - from extreme cold to extreme heat.

Cable fastenings often have to be made of fire-resistant materials in order to prevent the spread of fire (e.g. by dripping burning plastic) in the event of a fire. If required, STAUFF cable fixings are manufactured from special flame-retardant materials in accordance with international fire protection standards (e.g. UL 94 V0).

Low-voltage cables (also known as low-voltage cables) are used for voltages of up to 1,000 volts (1 kV) and are primarily used in household power supplies, lighting, sockets and smaller machines. They have a relatively simple structure, typically consisting of a conductor (e.g. copper or aluminium), insulation made of materials such as polyvinyl chloride (PVC) or rubber and a protective sheath that ensures mechanical stability and protection against external influences. An example of low-voltage cable is the NYM cable frequently used in building services engineering.

Medium-voltage cables (also known as medium-voltage cables) are used for voltages ranging from 1 kV to 36 kV (sometimes up to 50 kV) and are mainly used to supply power to industrial plants, urban districts and to connect substations and distribution networks. Their construction is more complex than that of low-voltage cables, as they have to fulfil additional requirements. They have insulation, usually made of cross-linked polyethylene (XLPE), as well as semiconductor layers that ensure even voltage distribution. They also have metallic shields, often made of copper strips, to dissipate electric fields and robust outer sheaths that can withstand mechanical stress and environmental influences. Such cables are essential for regional distribution networks and reliable power supply in medium-voltage areas.

The WPC clamps consist of metal components made of mild steel (STAUFF zinc/nickel) or stainless steel (V2A, V4A) as well as elastomer materials.

The clamps are available in various sizes for different cable diameters. Thanks to flexible inserts, several diameters can be covered with a single type of clamp.

The quick-release technology significantly reduces installation time and increases work safety, as no additional tools are required.

Yes, WPC clamps with fire protection material in accordance with UL 94 V-0 are available on request.

The clamps are tested in accordance with DIN EN 61914 (VDE 0604-202) and fulfil international wind power standards.