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Title: Investigation of a light fixture fire

Metal-halide lamps produce light by discharging an electric arc through a gaseous mixture of vaporized mercury and metal halides. Metal-halide lamps for use in spaces with lower mounting heights can produce excessive visual glare in the normal, higher field-of-view unless they are equipped with prismatic lenses. Should the bulb fail, high internal operating pressure of the arc tube can launch fragments of arc tube at high velocity in all directions, striking the outer bulb of the lamp with enough force to cause the outer bulb to break. This article reports an investigation of a light fixture fire and reviews a case study of a metal-halide lamp fire. We reported on causal analysis of the metal-halide lamp fire uncovered contributing factors that created the environment in which the incident occurred. Latent organizational conditions that created error-likely situations or weakened defenses were identified and controlled. Lastly, effective improvements that reduce the probability or consequence of similar metal-halide lamp fire incidents were implemented.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-16-22427
Journal ID: ISSN 1871-5532
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of Chemical Health and Safety
Additional Journal Information:
Journal Name: Journal of Chemical Health and Safety; Journal ID: ISSN 1871-5532
Publisher:
Elsevier
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Environment, Health, Safety and Security (AU)
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; 36 MATERIALS SCIENCE; Incident, Human Error, Apparent Cause, Process Improvement, metal-halide lamp, fire
OSTI Identifier:
1304723
Alternate Identifier(s):
OSTI ID: 1413341

Jurney, James D., Cournoyer, Michael E., Trujillo, Stanley, and Schreiber, Stephen B.. Investigation of a light fixture fire. United States: N. p., Web. doi:10.1016/j.jchas.2016.03.005.
Jurney, James D., Cournoyer, Michael E., Trujillo, Stanley, & Schreiber, Stephen B.. Investigation of a light fixture fire. United States. doi:10.1016/j.jchas.2016.03.005.
Jurney, James D., Cournoyer, Michael E., Trujillo, Stanley, and Schreiber, Stephen B.. 2016. "Investigation of a light fixture fire". United States. doi:10.1016/j.jchas.2016.03.005. https://www.osti.gov/servlets/purl/1304723.
@article{osti_1304723,
title = {Investigation of a light fixture fire},
author = {Jurney, James D. and Cournoyer, Michael E. and Trujillo, Stanley and Schreiber, Stephen B.},
abstractNote = {Metal-halide lamps produce light by discharging an electric arc through a gaseous mixture of vaporized mercury and metal halides. Metal-halide lamps for use in spaces with lower mounting heights can produce excessive visual glare in the normal, higher field-of-view unless they are equipped with prismatic lenses. Should the bulb fail, high internal operating pressure of the arc tube can launch fragments of arc tube at high velocity in all directions, striking the outer bulb of the lamp with enough force to cause the outer bulb to break. This article reports an investigation of a light fixture fire and reviews a case study of a metal-halide lamp fire. We reported on causal analysis of the metal-halide lamp fire uncovered contributing factors that created the environment in which the incident occurred. Latent organizational conditions that created error-likely situations or weakened defenses were identified and controlled. Lastly, effective improvements that reduce the probability or consequence of similar metal-halide lamp fire incidents were implemented.},
doi = {10.1016/j.jchas.2016.03.005},
journal = {Journal of Chemical Health and Safety},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}