Dielectric properties of fibrous insulation as affected by repeated voltage application

J. B. Whitehead: I think the striking result of this paper is the indication that sometimes insulation that has been strained will recover and sometimes it will not. It is easy, from our present knowledge of the properties of insulation, to see how both of those things may occur. Composite insulation is distinguished principally by the property of dielectric absorption, sometimes called viscosity, sometimes spoken of as the property of having residual charge.