Utility Backbone Network

Enabling Direct-Buried Fibre Deployment Across Utility Transmission Infrastructure

Overview

A backbone fibre network for a renewable energy zone in regional New South Wales required a robust, continuous communication layer connecting critical energy assets.

Installed alongside transmission corridors, the environment demanded high mechanical strength, environmental resilience, and alignment with infrastructure authority guidelines. Direct-buried installation further required cable durability and constructability without reliance on ducting or secondary protection systems.

Approach & Outcome

Veyra Fibre supported the deployment by structuring a cable solution aligned to corridor requirements, ensuring suitability for direct burial while maintaining installation efficiency across extended route lengths.

All-dielectric, flame-retardant loose tube cables were selected to deliver mechanical robustness and environmental protection, while retaining flexibility for efficient handling and installation. The construction incorporated layered sheathing, dielectric armouring, and water-blocking elements to provide termite and rodent resistance and ensure long-term reliability in buried conditions.

The solution incorporated:

• Dielectric armoured loose tube cables with high mechanical strength designed for direct-buried installation

• Flame-retardant, LSZH construction aligned to infrastructure and fire safety requirements

• High fibre-count configurations supporting scalable capacity across transmission networks

• Water-blocking, rodent-resistant and termite-protected design for long-term environmental protection

• Supply on steel drums, enabling controlled payout and handling across extended installation routes

The solution was aligned to relevant infrastructure authority guidelines, ensuring compatibility with corridor installation practices.