Compliance Testing for Locomotive LED Headlights and Auxiliary Lights, Phase IV

Meza-Arroyo, Manuel; Shibata, Peggy A.; Sprague, James K.; Woods, Sean; United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology

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Compliance Testing for Locomotive LED Headlights and Auxiliary Lights, Phase IV

2021-04-01
By Meza-Arroyo, Manuel ; Shibata, Peggy A. ; Sprague, James K. ; ...

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Creators:

Meza-Arroyo, Manuel ; Shibata, Peggy A. ; Sprague, James K. ; Woods, Sean

Meza-Arroyo, Manuel ; Shibata, Peggy A. ; Sprague, James K. ; Woods, Sean Less -
Corporate Creators:

United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology

United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology Less -
Subject/TRT Terms:

[+]

Acceptance Tests Auxiliary Lights Code Of Federal Regulations §229.125 Cold Weather Cold Weather Performance Environmental Testing Halogen Headlamps LED Light Emitting Diodes Locomotive Headlights Locomotives Phase IV Compliance Testing Photometry Standards
Publication/ Report Number:

DOT/FRA/ORD-21/16
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Technical Report, July 2020
Contracting Officer:

Omar, Tarek
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology ; United States. Federal Railroad Administration. Office of Railroad Policy and Development

United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology ; United States. Federal Railroad Administration. Office of Railroad Policy and Development Less -
Abstract:

This report describes the work performed during Phase IV compliance testing of light-emitting diode (LED) fixtures used as locomotive headlights and auxiliary lights. The purpose was to study the performance of the lamps under severe cold weather conditions. Researchers sought to determine whether LED lamps could melt a 1/4-inch-thick layer of ice from a lens surface and whether the lamps would accumulate a coating of snow and ice when operated in the presence of very cold, windblown snow. Throughout the testing, halogen lamps, currently standard equipment on freight locomotives, were used as a performance benchmark.
Format:

PDF
Collection(s):

Federal Railroad Administration
Main Document Checksum:

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urn:sha256:eeaf29ed40f811de9315258880dd80c66d7fd4a55007051d1e50fd2f5a6e5c1f
Download URL:

https://rosap.ntl.bts.gov/view/dot/55517/dot_55517_DS1.pdf
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Compliance Testing for Locomotive LED Headlights and Auxiliary Lights, Phase IV

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