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Circuit -
Distribution Line (DL) -
Enhanced Powerline Safety Settings (EPSS) -
Public Safety Power Shutoff (PSPS) -
Risk Associated with an Ignition Location (RAIL) -
Risk Associated with Value Exposure (RAVE) -
Service Center -
Substation -
Transformers (TF) -
Transmission Line (TL) -
Zone of Protection (ZOP) -
Operating Company (OpCo)
This glossary defines key terms used in utility wildfire risk assessment and mitigation planning including:
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utility infrastructure terminology
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utility-specific risk metrics
Terminology and specific applications may vary by utility, jurisdiction, and regulatory framework. The definitions provided reflect common usage in the field.
Utility Grid Organization
High-voltage Transmission Lines (TL) transfer power from generation sources, such as power plants, to facilities that step down voltage for distribution, like Substations, or directly supply high-demand commercial facilities. Distribution Lines (DL) form the grid's final stage, carrying electricity at reduced voltage from Substations to homes and businesses.
Within a utility, Transmission Lines (TL) and Distribution Lines (DL) usually fall under different management structures and may be handled by separate work units.