Canada is one of the top nations in the world for mining minerals and metals, with more than 200 operational mines. Because they make tripping hazards visible, luminaires are crucial in helping mine personnel complete their work safely.
Vibration, Heat, and Shock
The conditions in mines are hostile to standard luminaires because of the confined confines and frequent tremors. Luminaires used in mining applications need to be robust, small, and long-lasting. In addition, without ventilation, mine temperatures can exceed 40°C. LED lighting with a hazardous rating is ideally suited to consistently operate in chilly conditions.
Explosions
Methane gas accumulation in conjunction with a heat source is the most frequent reason for mine explosions. Depending on how much methane is in the air, an explosion can be caused by a very tiny amount of heat. Methane is a highly flammable gas. This highlights how crucial it is to have dependable luminaires in mining applications so that a defective circuit does not cause a domino effect.
Lighting specifications
Regulations defining the specifications of a hazardous location authorised LED fixture are in place due to the hazardous nature of mining. The following certifications are to be sought in luminaires:
UL Hazardous Location Class I and Class II Ratings.
Both Class I and Class II explosive atmospheres—explosive gas and explosive dust—are prevalent in mining operations. The divisions within each class are further subdivided into Groups. Class I Div 2 Groups B, C, and D (Atmosphere containing combustible gas) and Group A (Atmosphere containing Acetylene—a gas used in welding] should be closely monitored in mining operations. A luminaire with these ratings has undergone extensive testing to demonstrate its safety for operation in both Class I and Class II explosive gas and dust atmospheres.
