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Key Comparison EURAMET.EM-K5.1 EURAMET Project No. 687 Comparison of 50/60 Hz Power Final Report

2011    Cayci, Huseyin

To support the Calibration and Measurement Capabilities (CMCs) declared by members of EURAMET (formerly EUROMET) in the framework of the CIPM-MRA, a EURAMET Key Comparison was organised. Electrical standards of low-frequency (50/60 Hz) power were compared at 10 National Metrology Institutes (NMIs) of EURAMET member states and at 2 NMIs of COOMET and APMP member states, to establish the relationship between the electrical units of AC power at these laboratories. The results of this comparison are described. The differences between almost all laboratory's values and the reference values were within the expanded measurement uncertainties at a coverage factor k=2.