Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to DD15921971ApriorityCriticalpatent/DD96801A1/xx
Priority to DE19722254807prioritypatent/DE2254807A1/de
Priority to FR7241943Aprioritypatent/FR2161096A1/fr
Publication of DD96801A1publicationCriticalpatent/DD96801A1/xx
H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
H01H33/66—Vacuum switches
H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
H01H33/6646—Contacts; Arc-extinguishing means, e.g. arcing rings having non flat disc-like contact surface