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BSI 22/30458407 DC 2022

BSI 22/30458407 DC 2022

$13.70

BS EN 61558-2-12. Safety of transformers, reactors, power supply units and combination thereof – Part 2-12. Particular requirements and tests for constant voltage transformers and power supply units for constant voltage

Published By Publication Date Number of Pages
BSI 2022 22
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PDF Catalog

PDF Pages PDF Title
5 FOREWORD
7 INTRODUCTION
8 1 Scope
10 2 Normative references
3 Terms and definitions
11 4 General requirements
5 General notes on tests
6 Ratings
12 7 Classification
8 Marking and other information
8.1
14 9 Protection against electric shock
10 Change of input voltage setting
11 Output voltage and output current under load
15 12 No-load output voltage
16 13 Short-circuit voltage
14 Heating
15 Short-circuit and overload protection
15.1.1 Short circuit and overload test method
17 16 Mechanical strength
17 Protection against harmful ingress of dust, solid objects and moisture
18 18 Insulation resistance, dielectric strength and leakage current
19 Construction
19 20 Components
21 Internal wiring
22 Supply connection and other external flexible cable or cords
23 Terminals for external conductors
24 Provisions for protective earthing
25 Screws and connections
26 Creepage distances, clearances and distances through insulation
20 27 Resistance to heat, fire and tracking
28 Resistance to rusting
21 Annexes
22 Bibliography

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BSI 22/30458407 DC 2022
$13.70