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AS/NZS 5814.1:2012
$177.61
Information technology equipment – Energy performance of internal power supplies, Part 1: Methods of measurement of energy performance
This document specifies a test procedure for calculating the energy efficiency of internal a.c.-d.c. and d.c.-d.c. power supplies.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Exclusions
1.3 Referenced documents
1.4 Definitions
2 General conditions for measurement
2.1 General
2.2 Power factor (PF) measurement accuracy
2.3 Power measurements
2.3.1 General
2.3.2 Uncertainty, resolution and rounding
2.4 Power supply
2.4.1 A.C. input voltage and frequency
2.4.2 D.C. input voltage
2.4.3 A.C. supply voltage waveform
2.5 Power supply loading
2.6 Power supply fan control
2.6.1 Power supply fan control through temperature sense (internal control)
2.6.2 Power supply fan control through external voltage signal (external control)
2.6.3 Power supplies with internal system cooling fans
2.6.4 Power supplies requiring external cooling
2.7 Test d.c. Loads
2.8 Test setup
2.9 Test room
2.10 Warm-up time
3 Loading criteria for testing efficiency
3.1 General provisions
3.2 Proportional allocation method for loading multiple and single-output a.c.–d.c. and d.c.–d.c. power supplies
3.2.1 General
3.2.2 Method of proportional allocation based on overall power supply rated d.c. output current with no subgroup ratings
3.2.3 Method of proportional allocation based on overall power supply rated d.c. output current with subgroup ratings
3.2.4 Method of current allocation for measuring the a.c. power consumption of an internal power supply in the standby condition
4 Measurement approach
4.1 EUT preparation
4.2 Testing sequence
5 Efficiency calculation
6 Test report
6.1 General
6.2 Mandatory information
6.3 Optional information
6.4 Retention and availability of test reports
6.5 Sample test report
Appendix A
Appendix B
Appendix C
Cited references in this standard
Content history
DR AS/NZS 5814.1
Please select a variation to view its description.
| Published | 17/07/2012 |
|---|---|
| Pages | 32 |
Please select a variation to view its pdf.
