If you, as a user of ANSI/IES RP-16-17, believe you have located an error not covered by the following revisions, please e-mail your information to Pat McGillicuddy, email@example.com, or send a letter to Pat McGillicuddy, Manager of Standards Development, IES, 120 Wall St., 17th Floor, New York, NY 10005.
Additions will be posted as they become available.
Addendum 3 was approved by the IES Standards Committee on February 28, 2019, and by the American National Standards Institute (ANSI) on July 29, 2019.
Click here to download Addendum 3 for RP-16-17, Nomenclature and Definitions for Illuminating Engineering. [PDF 206KB]
New Terms and Definitions:
artificial sky glow
luminance coefficient, q
natural sky glow
reduced luminance coefficient, r
solid state lighting (SSL)
spectral power distribution (SPD)
spectral transmittance distribution
total spectral radiant flux
New Controls Terms:
lumen maintenance control
networked lighting control system
Added to Index only:
constant lumen output
lumen depreciation compensation