Title : 
The dielectric strength of the vacuum: Electrostatic ionization gradient of metal electrodes
         
        
        
            Author_Institution : 
General Electric Company, Schenectady, N. Y.
         
        
        
        
        
        
        
            Abstract : 
THE dielectric strength of air is 30 kv. per cm. at 0 deg. cent. and 76 cm. barometric pressure. It is proportional to the air density over a considerable range. It reaches a minumim in a moderate vacuum. Beyond this, it increases again, and in a very high vacuum reaches high values. much higher than at atmospheric pressure.
         
        
            Keywords : 
Coils; Current transformers; Dielectric breakdown; Dielectrics; Electrodes; Heating; Relays;
         
        
        
            Journal_Title : 
American Institute of Electrical Engineers, Journal of the
         
        
        
        
        
            DOI : 
10.1109/JoAIEE.1922.6591649