http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
4-30: Testing and measurement techniques - Power quality measurement methods
International Electrotechnical Commission (IEC)
This part of IEC 61000-4 defines the methods for measurement and interpretation of results for power quality parameters in a.c. power supply systems with a declared fundamental frequency of 50 Hz or 60 Hz. Measurement methods are described for each relevant parameter in terms that give reliable and repeatable results, regardless of the method's implementation. This standard addresses measurement methods for in-situ measurements
International Electrotechnical Commission, IEC.
Techniques d'essai et de mesure - Méthodes de mesure de la qualité de l'alimentation