| 摘要 |
The invention relates to optical waveguides which can be examined for disturbances, having a core 1 with one or a multiplicity of optical waveguides, which are possibly stranded, strain relief fibres 2 and at least one sheath 6, one or a multiplicity of outer strain relief fibre bundles 2 being provided which are possibly arranged so as to be concentric with the cable core 1 and have at least one optical control waveguide 10. <IMAGE>
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