International comparison of a resistive divider at 100 KV DC

Values of the voltage divider ratio of a de high-voltage divider, built and characterized by the National Measurement Laboratory (NML) of Australia, w ere determined at the Productivity and Standards Board (PSB) of Singapore, the Center for Measurement Standards (CMS) of Taiwan, the Standards and Cal ibration Laboratory (SCL) of Hong Kong, and Japan Electric Meters Inspectio n Corporation (JEMIC) of Japan by the comparison method, under an APMP prog ram. The resistance values of the NML divider were also determined in the p articipating laboratories. Good agreement was found between the measured av erage resistance ratio and the measured average voltage ratio. The relative voltage dependence of the dividers has also been established.