| 摘要 |
The invention relates to a cable and to a method of constructing a cable with at least one cable core having three or more conducting layers which are mutually separated by isolating layers, resistive layers, or reduced electrical contact surfaces. The conducting layers include electrical conductors, which are arranged helically with predetermined pitch angles. According to the invention, the predefined pitch angles increase in steps from layer to layer from the radial innermost conducting layer to an intermediate conducting layer located between the radial innermost conducting layer, and said predefined pitch angles remain substantially constant or decrease in steps from layer to layer from said intermediate conducting layer to the radial outermost conducting layer. As a result, an even current distribution and hereby a reduced AC loss is obtained. The invention further relates to the use of an AC cable according to the invention as a power cable.
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