Construction
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Optical fibres: Coloured single-mode fibres according to the ITU-T G.652.D.
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Secondary coating: A plastic core tube with jelly filling. The cable core is wrapped longitudinally with a swellable tape.
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Moisture barrier: Polymer coated aluminium tape applied longitudinally with an overlap. The nominal thickness of the tape is 0,15 mm. Minimum overlap is 3 mm.
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Inner sheath: The cable inner sheath consists of UV resistant black polyethylene compound (LLDPE). Nominal sheath thickness is 1,0 mm
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Armouring: Zinc-coated steel wires in single layer. Wire diameter is 1,6 mm.
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Outer sheath: The cable outer sheath consists of UV resistant black polyethylene compound (HDPE). Minimum sheath thickness is 2,5 mm.
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Sheath marking: Marking printed on the sheath at one meter interval: Nestor Cables - cable type - lot number - year of manufacture - length marking.
All of our fibre optic and copper cables are halogen-free.