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IndustryGlossary Term

HVDC (High-voltage Direct Current)

A power transmission system that moves large amounts of electricity over long distances using direct current. Subcontractors may encounter HVDC infrastructure on remote energy projects, pipeline corridors, or renewable tie-in work. Specialised certifications and safety protocols are typically required before working near HVDC lines or converter stations.

Related Terms

Hot Shot

Industry

Expedited delivery service for equipment, parts, or materials to remote job sites. Often used for urgent oilfield deliveries.

Energy Security

Industry

A nation's ability to maintain reliable, uninterrupted energy supplies. For subcontractors, it drives long-term project demand in oil, gas, and infrastructure. Governments prioritising energy security often accelerate capital spending, creating sustained work opportunities.

Concrete Ties

Industry

Heavy precast concrete blocks or collars used to anchor pipelines and prevent buoyancy in wet or unstable ground. Subcontractors install them during pipeline construction, often requiring specialised lifting equipment and crews. Scope and quantity directly affect labour hours and equipment costs in your bid.

Full-Depth Reclamation

Industry

A road rehabilitation method where the full pavement structure is pulverised and mixed with the subgrade to create a stabilised base. Subcontractors use specialised reclaimers and stabilisers to complete the work in a single pass. It is common on oilfield lease roads and remote access routes requiring cost-effective repair.

Class 8

Industry

The heaviest category of commercial trucks, rated at over 33,001 lbs gross vehicle weight. Common in oil and gas field work for hauling heavy equipment, frac sand, and pipe. Operators require a Class 1 licence in Canada.

Reinforcing Bar (rebar)

Industry

Steel bars embedded in concrete to add tensile strength in foundations, structures, and infrastructure builds. Subcontractors handling rebar must account for material costs, placement labour, and tie wire in their bids. Improper installation can trigger costly rework and inspection failures.

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