1. Introduction p. 2 2. Participants and schedule p. 2 3. Transfer standard and required measurements p. 5 4. Behaviour of the transfer standard p. 5 5. Measurements of the pilot laboratory and temperature and humidity coefficients p. 7 6. Power effect p. 8 a) collective heating p. 8 b) power coefficient p. 9 7. Measurement methods p. 10 8. Ratio 1000 V /… (More)
—Fifteen National Metrology Institutes have participated in dc voltage ratio comparison CCEM-K8. The method followed to normalize the participants' results, the calculation of the key comparison reference values and the comparison results are reported for the two mandatory ratios of the comparison, 1000 V/10 V and 100 V/10 V.