A device that steps electrical voltage up or down within the 1 kV to 35 kV range on industrial job sites. Subcontractors often work around these units when installing temporary power or connecting equipment. Strict lockout/tagout and electrical certification requirements apply near this equipment.
Medium Voltage Transformer
Related Terms
Walkover Locating
IndustryA method of tracking an underground drill head's position by walking the surface above it with a handheld receiver. The receiver picks up a signal from a transmitter housed in the drill head. Subcontractors use this to guide directional boring and confirm depth in real time.
CTL (Compact Track Loader)
IndustryA rubber-tracked, skid-steer-style machine used for grading, excavating, and material handling on tight or soft job sites. Subcontractors commonly mobilise CTLs for site prep, trenching support, and backfill work. Their compact footprint makes them well-suited for restricted-access oil and gas and construction sites.
Marine Infrastructure
IndustryOffshore and coastal structures such as platforms, jetties, pipelines, and subsea systems where field work is performed. Subcontractors must hold marine-specific certifications and follow offshore safety protocols. Mobilisation costs and logistics are typically higher than onshore projects.
BOPD (Barrels of Oil Per Day)
IndustryA measure of a well's or facility's daily oil production output. Operators use BOPD targets to schedule field service work, so higher rates often mean more frequent maintenance contracts and crew rotations. Subcontractors may see BOPD thresholds written into service agreements to trigger additional scope.
Ballast
IndustryHeavy material (water, sand, or concrete) added to vessels, structures, or equipment to improve stability and balance. In field operations, managing ballast affects load planning, marine logistics, and offshore platform work. Subcontractors on marine or offshore scopes must account for ballast systems in scheduling and safety planning.
Modular Water Storage
IndustryPortable, stackable tank systems used on remote job sites to store potable, process, or wastewater. Subcontractors deploy them quickly without permanent infrastructure. Common on pipeline, camp, and frac support contracts.
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