E> CablE that can bE (lEgally) installEd in thE plEnum (thE spacE bEtwEEn a cEiling and thE floor abovE it). Such cablE is (usually) tEflon-coatEd so that it will not givE off toxic fumEs whEn burnEd. In somE parts of thE world such cablE is rEquirEd by law. (1996-08-25)