This document defines adequate and uniform methods for measuring and reporting the photometric characteristics of roadway and area lighting luminaires using incandescent filament or high intensity discharge lamps. It describes characteristics of luminaires and some components, as well as the requirements for the thermal environment and proper control of the electrical and mechanical systems involved. General test conditions and the testing procedure best suited for achieving accurate and consistent photometric results are defined. The test procedures for luminaires using incandescent filament or high intensity discharge (HID) lamps described herein can utilize either absolute or relative photometry methods.
Page count: 35 pages
Publisher: Illuminating Engineering Society (2020)
SKU: ANSI/IES LM-31-20
1.0 Introduction and Scope
2.0 Normative References
3.0 Definitions and Nomenclature
4.0 Physical and Environmental Test Conditions
5.0 Electrical Test Conditions
6.0 Testing Procedure Requirements
7.0 Test Report
Illuminating Engineering Society. ANSI/IES LM-31-20, Approved Method: Photometric Testing for Roadway and Area Lighting Luminaires Using Incandescent or High Intensity Discharge Lamps. New York: IES; 2020.