AS/NZS 5814.1:2012

PREFACE

CONTENTS

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE

1.2 EXCLUSIONS

1.3 REFERENCED DOCUMENTS

1.4 DEFINITIONS

1.4.1 A.C.ŒD.C. power supply

1.4.2 A.C. signal

1.4.3 Ambient temperature

1.4.4 Apparent power (S)

1.4.5 Crest factor

1.4.6 D.C.ŒD.C. power supply

1.4.7 D.C. signal

1.4.8 Efficiency (η)

1.4.9 Enclosed-frame modular internal power supply

1.4.10 Equipment under test (EUT)

1.4.11 Model name

1.4.12 Multiple-output power supply

1.4.13 Open-frame modular internal power supply

1.4.14 Output voltage bus

1.4.15 Product family

1.4.16 Rated a.c. input voltage

1.4.17 Rated a.c. input voltage range

1.4.18 Rated d.c. input voltage

1.4.19 Rated d.c. output current

1.4.20 Rated d.c. output current range

1.4.21 Rated d.c. output power

1.4.22 Rated d.c. output voltage

1.4.23 Rated input frequency

1.4.24 Rated input frequency range

1.4.25 Rated input current

1.4.26 Rated input current range

1.4.27 r.m.s. (root mean square, also R.M.S)

1.4.28 Single model

1.4.29 Single-output power supply

1.4.30 Standby mode

1.4.31 Standby voltage rail (Vsb)

1.4.32 Steady state

1.4.33 Test voltage source

1.4.34 Total harmonic distortion (THD)

1.4.35 True power factor

1.4.36 Voltage unbalance

SECTION 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

SECTION 3 LOADING CRITERIA FOR TESTING EFFICIENCY

3.1 GENERAL PROVISIONS

3.2 PROPORTIONAL ALLOCATION METHOD FOR LOADING MULTIPLE AND SINGLE-OUTPUT A.C.ŒD.C. AND D.C.ŒD.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...

SECTION 4 MEASUREMENT APPROACH

4.1 EUT PREPARATION

4.2 TESTING SEQUENCE

SECTION 5 EFFICIENCY CALCULATION

SECTION 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 - EXAMPLE EFFICIENCY REPORT FOR A MULTI OUTPUT POWER SUPPLY

APPENDIX B - INTERNAL POWER SUPPLY EXAMPLES

APPENDIX C - SERVER POWER SUPPLY EXAMPLES