Add to wishlist
Approved Method: Photometric Testing of Roadway and Area Lighting Luminaires Using Incandescent Filament or High Intensity Discharge Lamps

Photometric Testing for Roadway and Area Lighting Luminaires Using Incandescent or High Intensity Discharge Lamps

$50.00

For Member Pricing, Please Login

Member Price: $35.00

ANSI/IES LM-31-20
Document Type: Lighting Measurement and Testing (LM)

Available as a downloadable secure PDF only.

To stay current with all IES standards, we recommend subscribing to the The Lighting Library as an Individual or through your company as a Sustaining Member.

In stock

SKU: ANSI/IES LM-31-20 Category: Tag:

Product Description

Approved American National StandardThis 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
ISBN-13: 978-0-87995-078-1

Chapters:

  • 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

 
Citation Format:
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.

CONTENTS

  • 1.0 Introduction and Scope
  • 1.1 Introduction
  • 1.2 Scope
  • 2.0 Normative References
  • 2.1 ANSI/IES LM-28-20
  • 2.2 ANSI/IES LM-45-20
  • 2.3 ANSI/IES LM-51-20
  • 2.4 ANSI/IES LM-54-20
  • 2.5 ANSI/IES LS-1-20
  • 3.0 Nomenclature and Definitions
  • 3.1 auxiliary Equipment
  • 3.2 area lighting
  • 3.3 pre-burning
  • 3.4 test distance
  • 3.5 units
  • 4.0 Physical and Environmental Test Conditions
  • 4.1 General
  • 4.2 Temperature
  • 4.3 Airflow
  • 4.4 Stray Light
  • 4.5 Vibration
  • 5.0 Electrical Test Conditions
  • 5.1 Power Supply Requirements
    5.1.1 Primary Source Voltage
    5.1.2 Power Supply Wave Shape
    5.1.3 Power Supply Regulation
  • 5.2 Reference Circuit Requirements
  • 5.3 Measurement Instrument Requirements
  • 6.0 Testing Procedure Requirements
  • 6.1 General
    6.1.1 Goniophotometer
  • 6.2 Test Distance
  • 6.3 Selection and Preparation of Luminaire
    6.3.1 Luminaire, Lamp, and Ballast Selection
    6.3.2 Cleaning of Luminaire Optical Parts
  • 6.4 Test Lamps
    6.4.1 General
    6.4.2 Lamp Seasoning
    6.4.3 Test Lamp Operation
  • 6.5 Test Methodologies
    6.5.1 General
    6.5.2 Bare Lamp Measurement
    6.5.3 Lamp Photometric Calibration Process
    6.5.4 Luminaire Photometry
    6.5.5 Photometric Data Processing
  • 7.0 Test Report
  • 7.1 General
  • 7.2 Test Description
  • Annex A – Zonal Constants for Conversion
  • Annex B – Procedure for Computing Iso-illuminance Curves
  • Annex C – Computing Utilization Efficiency
  • Annex D – Sample Test Report
  • Annex E – Table of Constants for Horizontal Illuminance
  • Additional Reading
  • Informative References