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Minimizing fire hazards in coal mines by proper circuit-breaker protection of 250/275-volt direct-current systems

Evaluation of sensitive ground fault interrupters for coal mines

Published Year

• 1950-1959 (1)
• 1980-1989 (1)

Subject

• Electric circuit-breakers (2) *
• Coal mines and mining--Electric equipment (1)
• Coal mines and mining--Safety measures (1)
• Electric circuits--Direct current--Safety measures (1)
• Mine fires--Prevention and control (1)

Author

• Ackerman, Melvin N. (1)
• Gallagher, F. J. (1)
• Yenchek, M. R. (1)

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