| electric discharge that only partially bridges the insulation between conductors
NOTE 1 – A partial discharge may occur inside the insulation or adjacent to a conductor.
NOTE 2 – Scintillations of low energy on the surface of insulating materials are often described as partial discharges but should rather be considered as disruptive discharges of low energy, since they are the result of local dielectric breakdowns of high ionization density, or small arcs, according to the conventions of physics.
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