| Title | Compliance Testing for Locomotive LED Headlights and Auxiliary Lights, Phase IV |
|---|---|
| Record ID | 80359 |
| Personal Name Creator |
Meza-Arroyo, Manuel; Shibata, Peggy A.; Sprague, James K.; Woods, Sean |
| Corporate Creator | 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 |
| 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 |
| Publication Date | 20210401 |
| Language | English |
| 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. |
| Rosap ID | dot:55517 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/55517 |
| TRT Terms | Acceptance tests; Locomotives; Headlamps; Light emitting diodes; Photometry; Standards; Cold weather |
| General Subjects | Locomotive headlights; auxiliary lights; LED; halogen; Phase IV compliance testing; cold weather performance; environmental testing; Code of Federal Regulations ยง229.125 |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1769606 |
| Report Number | DOT/FRA/ORD-21/16 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/80000/80300/80359/Loco_LED_Phase_IV-A.pdf |
| Format | |
| Database | NTL Digital Repository |