https://digilab.ptb.de/dkd/refType/vocab/https://digilab.ptb.de/dkd/refType/vocab/skos/393HighVoltage https://digilab.ptb.de/dkd/refType/vocab/skos/393 DC BT https://digilab.ptb.de/dkd/refType/vocab/skos/393 RippleFactor NT https://digilab.ptb.de/dkd/refType/vocab/skos/393 ScaleFactorError NT https://digilab.ptb.de/dkd/refType/vocab/skos/393 ScaleFactor NT