IEC 62018-2003 pdf – Power consumption of information technology equipment – Measurement methods

IEC 62018-2003 pdf – Power consumption of information technology equipment – Measurement methods.
1 Scope This International Standard defines the test methods used to measure power consumption of information technology equipment (ITE) under various modes of operation for the purpose of energy management. ITE includes the products identified in the scope of IEC 60950-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. 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 given 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 accuracy of ±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 of at least 1 kHz.
4.2 Configuration The equipment under test shall be a representative configuration for 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 ± 5 °C. If a temperature range is specified 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 is recommended that the power source be capable of supplying three times the power actually required by the EUT. 4.5 Power measurements 4.5.1 Full-on mode Readings of input power and voltage in the full-on mode are taken under normal load when the power has stabilized. If the power varies during the normal operating cycle, the power is taken as the mean of the measured power over a complete operating cycle. 4.5.2 Energy saving mode Readings of input power and voltage in the energy saving mode are taken under normal load when the power has stabilized and not sooner than 1 min after entering the energy saving mode. It is permitted to initiate the energy saving mode manually in the shortest time permitted in the energy management program, to reduce the test duration. It may be necessary to use a password to return to a higher energy consumption level. Measurements are repeated for each energy saving mode of which the EUT is capable.
5 Records of results of measurements The following is the minimum information that shall be recorded for each configuration tested: – EUT manufacturer’s name and trade mark or identification mark and model or type reference and the serial number of the EUT; – configuration and work load used for the test; – ambient temperature during the tests; – input power supply – actual voltage and frequency; – power consumption in the full-on mode; – power consumption in each applicable energy saving mode.