Full cutoff definition
Full cutoff means the street lighting fixture is constructed so that all of the light emitted by the fixture is projected below the horizontal plane of the lowest point of the fixture.
Full cutoff means a shielded luminaire where zero luminous flux is emitted above the horizontal (90 degrees above nadir) and not more than 10% of lamp lumens are emitted at or above 80 degrees above the nadir.
Full cutoff means a fixture that does not allow more than
Examples of Full cutoff in a sentence
Full cutoff fixtures shall be installed in a horizontal position as designed.
Full cutoff high pressure sodium lamps, not exceeding a maximum lumen rating of sixteen thousand lumens, may be used in outdoor storage areas and other similar use areas not accessible to the general public and the need for good color rendering capabilities for safety and security is not necessary.
More Definitions of Full cutoff
Full cutoff means a lighting fixture from which none of its lamp's intensity is emitted at or above a horizontal plane drawn through the bottom of the fixture and no more than 10 percent of the lamp's intensity is emitted between 80 degrees and that horizontal plane.
Full cutoff. - Full Cutoff means a light distribution where no light is permitted at or above a horizontal plane located at the bottom of a light fixture. There will be little or no light at the angles that are usually associated with glare. (Added 12/19/2003)