Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
How dangerous ground currents were prevented and confidence of workmen regained
Stray currents were eliminated from shaft and equipment by interconnecting cables; leads on firing caps should be short-circuited until used; damaged blasting cables must be replaced at once; results of tests made to determine exact cause of premature explosion in mine during shaft sinking.
How dangerous ground currents were prevented and confidence of workmen regained
Stray currents were eliminated from shaft and equipment by interconnecting cables; leads on firing caps should be short-circuited until used; damaged blasting cables must be replaced at once; results of tests made to determine exact cause of premature explosion in mine during shaft sinking.
How dangerous ground currents were prevented and confidence of workmen regained
Coal Age
Jones, Emory E. (Autor:in)
Coal Age ; 26
1924
3 pages
5 Figs.
Aufsatz (Zeitschrift)
Englisch
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| Online Contents | 1996
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