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Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

candela (cd)
unit of measurement for luminous intensity (illuminating power in lumens/sr). The luminous intensity of 1/60 of 1cm2 of projected area of a blackbody radiator operating at the temperature of solidification of platinum (2046K). Historically, the unit of measurement for the light emitted by one flame of a specified make of candle.