Investigation of Task Illumination for Surface Coal Mining Equipment Operators.
J Illuminating Eng Soc 1991 20(1):2-18
Considering its participation in mine lighting committees with the International Commission Internationale de L'Eclairage (CIE) and the absence of federal lighting standards for surface mines, the U.S. Bureau of Mines conducted a study to examine illumination levels on and about large, mobile mining machinery at surface mines. Effort focused on evaluating the task lighting needs of the machinery operator. An intended outcome of the study was to supply useful data and information for efforts to establish illumination standards for the surface mining industry.
J. Illuminating Eng. Soc., V. 20, No. 1, 1991, PP. 2-18