IEC 60146-3:1977

Contents
Foreword
Preface
Clause
1. General
    1.1 Definitions
    1.2 General information
    1.3 Basic terms
    1.4 Multiple direct d.c. convertor
    1.5 Characteristics related to convertors
    1.6 Characteristics related to direct d.c.
         convertors
2. Service conditions
    2.1 Normal service conditions
    2.2 Service conditions to be identified by user
    2.3 Performance requirements to be identified by
         user
3. Rated values
    3.1 Rated values for direct d.c. convertors
    3.2 Load duty identification
    3.3 Rated input direct voltage value for battery
         sources
4. Tests
    4.1 Tests to be performed
    4.2 Preliminary light-load test
    4.3 Checking of auxiliary devices
    4.4 Temperature rise
    4.5 Frequency variation
    4.6 Rated continuous load/light-load tests
    4.7 Audible noise
    4.8 Supply overvoltage and transient energy test
    4.9 Short-time current
    4.10 Long-time current
    4.11 Restart
    4.12 Mechanical

Applies to all types of semiconductor convertors, i.e. d.c. to d.c. convertors without an a.c. link. If applicable, it may also be used for certain d.c. switches in control applications. Gives terminology and specifies service conditions, rated values, test programme and test methods.