Electrical discharge machining (debris) to be carried away and the insulating properties of the dielectric to be restored. Adding new liquid dielectric in the inter-electrode volume is commonly referred to as "flushing." Also, after a current flow, the difference of potential between the electrodes is restored to what it was before the breakdown, so that a new liquid dielectric breakdown can occur. The erosive effect of electrical discharges was first noted in 1770 by English physicist Joseph Priestley. Two Russian scientists, B. R. Lazarenko and N. I. Lazarenko, were tasked in 1943 to investigate ways of preventing the erosion of tungsten electrical contacts
Electrical Artificer Electrical Artificer An Electrical Artificer (EA) is an electrical technician competent in the electrical maintenance of ship's machinery such as engines and generators. This was originally a Royal Navy term for those trained and competent in the installation and maintenance of ships electrical systems. The title has been replaced in the Royal Navy . However the Irish Naval Service continues to use the term 'Electrical Artificer' (EA) for electrical technicians. A distinctive propeller insignia is worn to identify these personnel. Training is completed in the National Maritime College which is incorporated into the Cork Institute of Technology. Prior to its