BS EN 62018:2003 – Power consumption of information techno logy equipment一 Measurement methods
1 Scope
This International Standard defines the test methods used to measure power consurmption of information technology equipment (ITE) under various modes of operation for the purpose of energy management. itE includes the procducts identfied in the scope of IEC 60950-1.
2 Normative references
The fllowing referenced documents are indispensable for the application of this document. For dated references, only the edition cited aplies. For. undated references. the latest edition of the referenced document (including any amendments) applies.
IEC 60950-1, Information technology equipment – Safety – Part 1: General requirements 3 Terms and definitions
For the purposes of this document, the terms and definitions glven in IEC 60950-1 and the following apply. Defined terms are printed in bold characters where they occur in the text.
3.1
full-.on mode
a normal operating condition of the ITE in which all functions are fully powered
3.2
energy saving mode
an operating condition of the ITE in which one or more functions are switched off
4 Test procedure
4.1
Measuring equipment
Measurements are made with a suitably calibrated true r.m.s. voltmeter and a wattmeter. The voltmeter shall have an accuracyof土1 % or better at rated voltage. The wattmeter shall have an accuracy of +1 % or better at 100 W and greater. It shall be capable of accurate readings of waveforms having peak factors up to 5. The test instruments shall have a bandwidth ofat least 1 kHz.
4.2 Configuration The equipment under test shall be a representative configuration ftor typical use and capable of performing the functions for which it was configured. 4.3 Temperature and humidity If the operational environment is not specified by the manufacturer, or if a temperature range is specified that includes 23 °C, the tests are conducted at 23 °C土5 °C. If a temperature range is speified that does not include 23 *C, the tests are conducted at whichever end of the temperature range is closer to 23 °C.
4.4 Power source for test
4.4.1 Frequency and waveform The test supply frequency shall be the rated frequency of the EUT. The test supply waveform shall contain less than 5 % total harmonic distortion when the EUT is operating at the maximum configuration declared by the manufacturer.
4.4.2 Voltage If the equipment has one or more rated voltages, the measurements are made at one rated voltage and are not repeated for multiple rated voltages. If the equipment has one or more rated voltage ranges, measurements are made at each end of the selected rated voltage range. NOTE. It 1s recommended that the power source be capablo of supplying three times the powor actully roqulred by the EUT.
BS EN 62018:2003 – Power consumption of information techno logy equipment一 Measurement methods