The systems must be designed and installed with strict observance of federal and state regulations involving engineering and environmental practices. Since the 1990s, the complexity of these systems has rapidly expanded to include integrated dispenser systems, electronic fleet managment software, point of ...
Strict regulations surrounding the use of electrical equipment: Provision 75.1719–1(d) of the Codes of Federal Regulations (Mine Safety & Health Administration, 1988 [153]) states that: “The luminous intensity (surface brightness) of surfaces that are in a miner’s normal field of vision of ...