True RMS volts : (1) The effective value of an AC voltage value regardless of the waveform distortion. (2) An AC measurement which is equal power transfer capability to a corresponding DC voltage
Young & Company Electric Power Products and Related Engineering Services, Glossary of Electrical Terms, http://www.youngco.com/young2.asp?ID=4&Type=3, CA., USA 2001. (Electr Sfty - Amer) {514}