21 Terms
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Electricity
A database referring to the existence of a flow of electric charge.
Industry: Utilities
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Electricity
Tungsten halogen lamp
Electrical equipment; Electricity
A gas-filled tungsten halogen lamp containing a certain proportion of halogens.
Twisted pair
Electrical equipment; Electricity
Telephone companies commonly run twisted pairs of cooper wires to each customer household. The pairs consist of two insulated cooper wires twisted into a spiral pattern. These wires are capable of ...
Underground feeder (UF)
Electrical equipment; Electricity
A thermoplastic insulated, underground feeder conductor or cable designed for use in wet locations, including direct burial.
Underwriters Laboratories (UL)
Electrical equipment; Electricity
Underwriters Laboratories, Inc. UL is located at 333 Pfingsten Road, Northbrook, IL 60062.
Ultra high voltage (UFV)
Electrical equipment; Electricity
Electric systems in which the Root-Mean-Square ac voltage exceeds 800,000 volts.
Unbalanced loads
Electrical equipment; Electricity
Refers to an unequal loading of the phases in a polyphase system.
Underground residential distribution
Electrical equipment; Electricity
Refers to the system of electric utility equipment that is installed below grade.
