Nexans presents new cables for spreader applications: Integrated bus connection or tensile strength measurement

TOC Europe 2006, Terminal Operations Conference & Exhibition, Hamburg Fair, 30 May to 1 June, Stand C14

Mönchengladbach, 30 May 2006 – Nexans, the worldwide leader in the cable in-dustry, presents its complete solution for material handling systems at the TOC Europe 2006. The supplier’s range includes for example flexible energy and control cables. They have been optimised for extreme dynamic and mechanical loads. Nexans’ hoist-ing equipment cable stand out due to their reduced outer diameter and weight. This means that wiring systems such as drums and festoon systems with their respective power supplies can be designed with lower dimensions. This, in turn, has a positive impact on container cranes such as ship-to-shore cranes and stacking cranes, as well as portal and overhead cranes for industrial applications.

Nexans experts will be at your disposal at the congress fair TOC Europe at Stand C14 to provide information on the full handling range and the properties of these high-tech lines. They will also be presenting two new control cables for drum spreader applica-tions. One of these has an integrated bus connection, while the other measures the tensile load during operation.

High-tech for portal cranes: bus connection already integrated

More and more data is being transferred between the crane and the harbour control centre. This data transfer is now possible via bus element in the spreader cable: Nex-ans has integrated a bus connection beside the control cable in the new, spreader ca-ble called RHEYCORD(RTS) SPREADER-BUS. The bus element and tension relief ele-ment for protecting the cable from tensile strengths are located in the centre of the cable core. The geometry of the new line is compatible with existing drum systems. Their load capacity has already been verified at the Nexans Research Center (NRC) test centre in Nuremberg. At the test centre, cables are tested inline on various test de-vices. This allows real-time detection of possible damages of individual wires or cores during the dynamic load. Furthermore, Nexans disposes of equipment that can simu-late the influence of weather conditions such as cold or humidity using time-lapse technology. The first cable of this type has already been put into practical use.
Changing capacity cover provides information on tensile load

The second new control cable from the Nexans handling cable range is called
REYCORD(RTS) SPREADER DSC and has a sensor element at its core that reacts to the tensile load, in addition to the control wires. The sensor element changes the capacity cover depending on the acting tensile force. The overall capacity of a cable provides relevant information on the current tensile stress – in on-going operation. Knowledge of the tensile load allows better use of moving and hoisting  speeds and permits accu-rate control of motor-driven cable drums, among other things. Moreover, the meas-ured values can be used to estimate the wear on system parts, which is vital for condi-tioned maintenance and repair. This cable is also compatible with existing drum sys-tems and is suitable for retrofitting and for new crane systems. It has recently success-fully passed tests at the Nexans Research Center and is now ready for its first practical application.

In Nexans Research Center (NRC), located in Lyon, a new Application Center dedicated to Handling Cables has been inaugurated by Nexans at the beginning of this month to enhance comprehensive characterization of its products and speed up the development of the next generation of high performance handling cables for applications from spreader to mono-spiral and drum reeling, festoon, e-chain, etc.

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