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The progressive electrification of machinery, and the industry for electrical equipment and tools, creates an increasing demand for mobile cables... These cables are used in fixed installations or in installations or in environments were a high degree of flexibility is required. Especially if control panels or other equipment is moved, these cables are most suitable. The product range comprises cables which are suitable to interconnect most different applications from control and computer panels down to lifts, material flow and automation equipment. Control cables are exposed to a variety of mechanical and environmental stresses. Especially such as tesion and pressure to cores and change of lenght while bending. These requirements are met by selecting most appropriate construction principles and state of the art conductor, insulation and sheathing materials. The degree of flexibility and the reversed bending strength are determined by the construction of the copper conductor, i.e. diameter of single strands and length of lay, as well as by the formation of the cores and the mode of laying up to form the cable core. For normal and medium stresses the cores are additionally powdered. With that, the friction coefficient between the cores, and between the cores and the sheath, is decreased. The friction coefficient is lower than the bending stiffness of the cores. If a very high flexibility is required, an additional tight overlapped taping is applied over the cable core besides the powdering. The taping keeps the cores within the stranded layers.
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