The Bureau of Mines ground-fault protection research program [microform] : a summary /
Yenchek, M. R.(Michael R.)
Hudson, A. J.(Arthur J.)
United States.Bureau of Mines.
Washington, D.C. (2401 E St., N.W., MS #9800, Washington 20241) : U.S. Dept. of the Interior, Bureau of Mines,
1990.
Includes bibliographical references (p. 22).
Microfiche.
Mining machinery
Electric relays.
Electric shock.