maximum usable peak voltage of an X-ray generator, X-ray tube housing or X-ray tube indicated by the manufacturer for the operating conditions specified. For a single peak generator the rated voltagealways refers to the on-load halfcycle Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-07-20
maximum usable peak voltage of an X-ray generator, X-ray tube housing or X-ray tube indicated by the manufacturer for the operating conditions specified. For a single peak generator the rated voltagealways refers to the on-load halfcycle