The recommended illumination level for mining operations varies depending on the specific task being performed and the location within the mine. However, there are some general guidelines that can be used to determine appropriate illumination levels.
In underground mines, the Illuminating Engineering Society of North America (IESNA) recommends minimum illumination levels of 5-foot candles (fc) for general mining areas, 10 fc for underground loading areas, and 20 fc for shaft stations and control rooms. In addition, specific areas may require higher illumination levels, such as 30 fc for drilling and blasting operations.
In surface mining operations, the IESNA recommends minimum illumination levels of 5 fc for general areas, 10 fc for loading and dumping areas, and 20 fc for maintenance and repair areas.
It is important to note that these are minimum recommended illumination levels and that some mining operations may require higher illumination levels to ensure worker safety and productivity. In addition, different types of tasks may require different illumination levels, and lighting design should consider the needs of specific tasks.
Mining operations should also ensure that lighting fixtures are maintained and cleaned regularly to operate at their maximum efficiency and provide adequate illumination levels. Regular lighting audits and inspections can help to identify areas where lighting improvements may be necessary.