IEVref:845-29-070ID:
Language:enStatus: Standard
Term: utilance, <of an installation>
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Symbol: U
Definition: quotient of the luminous flux received by a reference surface and the sum of the individual output fluxes of the luminaires of the installation

Note 1 to entry: The utilance has unit one.

Note 2 to entry: This entry was numbered 845-09-53 in IEC 60050-845:1987.


Publication date:2020-12
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