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Electricity

A database referring to the existence of a flow of electric charge.

Contributors in Electricity

Electricity

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.

underground utility structure

Electrical equipment; Electricity

An enclosure for use underground that may be either a handhole or manhole.

unidirectional unit

Electrical equipment; Electricity

Allows inputs to be measured in one direction only. The stated output range indicates the minimum and maximum input levels.

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