Single-mode/multimode fibres are housed in a loose tube that is made of high-modulus plastic and filled with tube filling compound. Steel wires is wrapped outside the loose tube. Then a PE inner sheath is extruded and armored with corrugate......
Single-mode/multimode fibres are housed in a loose tube that is made of high-modulus plastic and filled with tube filling compound. Steel wires is wrapped outside the loose tube. Then a PE inner sheath is extruded and armored with corrugated steel tape. Finally, a PE outer sheath is extruded.
