Use of carbon dioxide in a mercury interrupter

Abstract

It is customary to use coal gas as a dielectric in the mercury interrupter and it has generally been found to be quite satisfactory in action. There are, however, places in the country where coal gas is not available, and the following experiments were under-taken with the view of examining the possibility of employing carbonic acid gas used in connexion with X-ray work carried out in hospitals at such places.