How does the corrugated steel tape reinforcement improve cable reliability?

The longitudinally applied and overlapped corrugated steel tape, coated with a copolymer layer, creates a robust metallic barrier that provides excellent crush and impact resistance, protection against rodent attack, and additional longitudinal strength. It enables direct-burial installations without supplementary conduit and ensures that the optical fibres remain protected in duct, tunnel, and harsh outdoor environments. The steel tape is tested in accordance with mechanical performance criteria defined in IEC 60794-1-21, guaranteeing compliance with demanding infrastructure requirements.