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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
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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)
