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 engineering technology degree and considered craftsman technicians. Eventually, with additional experience and certifications obtained then the craftsman technicians may advance to master craftsman technicians. Electrical/electronic engineering technologists are broad specialists, rather than central technicians. EETs have a bachelor's degree and are considered applied electrical or electronic engineers because they have electrical engineering concepts to use in their work. Entry-level jobs in electrical or electronics engineering generally require a bachelor's degree in electrical engineering, electronics engineering, or electrical engineering technology. Electrical engineering technology Electrical/Electronics engineering technology (EET) is an engineering technology field that implements and applies the principles of electrical engineering. Like electrical