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Mine power systems research(in four parts) :
Guide to substation grounding and bonding for mine power systems
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Published Year
1970-1979 (1)
1980-1989 (1)
Subject
Electric currents--Grounding (2) *
Electricity in mining (2)
Electric substations (1)
Mining machinery (1)
Author
Cooley, Wils L. (1)
King, Roger L., (1)
