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| | | Mexico, CENAM (Centro Nacional de Metrologia) | | | Complete CMCs in Electricity and Magnetism for Mexico (.PDF file)
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| AC power and energy: single phase (frequency <= 400 Hz, active energy). Watt-hour meter, 0 J to 7.2E+06 J | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µJ/VAs: 20 to 30 | | Direct comparison | | Voltage: 120 V, 240 V, 480 V, 600 V | | Current: 0.25 A to 100 A | | Power factor: 1 to 0, inductive or capacitive | | Frequency: 60 Hz | | Measurement time: 120 s | | Approved on 05 January 2012 | | Internal NMI service identifier: CENAM/E012-001-04 | | Uncertainty table |
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