Definitions for "Intrinsic Safety"
Keywords:  ignite, hazadous, namur, pwr, hotter
A design technique applied to electrical equipment and wiring for hazardous locations. It is based on limiting electrical and thermal energy to a level below that required to ignite hazardous atmospheric mixtures.
Safety features imparted by the physical characteristics of a reactor. They require no human or mechanical intervention to make them effective. In the PWR such a feature is the fact that, as the coolant gets hotter, the reactor tends to shut itself down.
A protection method for use in potentially explosive atmospheres that limits the energy available to create a spark or heat surfaces