Underground Cables

HFCL took on a demanding FTTx requirement from a European customer to deliver a Unitube blown cable capable of reaching 1000 metres in an 8/5 mm microduct at 7 bar pressure. While the initial 24-fibre prototype showed promise, it fell short under real-world conditions. This led to a focused redesign. After 26 iterations and close collaboration with HTL Hosur, HFCL developed an optimized Optibend Unitube Mini Cable with a low-friction outer jacket, validated through rigorous testing, and proven to meet the customer’s performance expectations.

A leading telecom provider in the UK faced an urgent need to future-proof their fiber plant by improving the flame rating of their legacy cabling solution. There was a critical requirement to improve their cables’ rating to the more stringent Cca classification. This upgrade was crucial to enhance fire safety and comply with evolving regulatory standards. Moreover, the customer sought a solution within an aggressive timeframe and with a minimal cost impact to minimize operational disruptions.

HFCL developed a 96-fibre Ultra Lightweight (ULW) aerial cable solution that provided a significant boost in network capacity while maintaining a compact and lightweight design. This innovation allowed the customer to effectively double their fibre capacity without increasing aerial congestion or installation costs. The solution’s success is marked by its adherence to stringent performance standards and extensive deployment across the UK. Additionally, the design received a patent in April 2024, underscoring its uniqueness and technical advancement.