IEC 61558-2-13:2009

IEC 61558-2-13 ®
Edition 2.0 2009-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ
Safety of transformers, reactors, power supply units and similar products for
supply voltages up to 1 100 V –
Part 2-13: Particular requirements and tests for auto transformers and power
supply units incorporating auto transformers

Sécurité des transformateurs, bobines d’inductance, blocs d'alimentation et
produits analogues pour des tensions d’alimentation jusqu'à 1 100 V –
Partie 2-13: Règles particulières et essais pour les autotransformateurs et les
blocs d'alimentation incorporant des autotransformateurs

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IEC 61558-2-13 ®
Edition 2.0 2009-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ
Safety of transformers, reactors, power supply units and similar products for
supply voltages up to 1 100 V –
Part 2-13: Particular requirements and tests for auto transformers and power
supply units incorporating auto transformers

Sécurité des transformateurs, bobines d’inductance, blocs d'alimentation et
produits analogues pour des tensions d’alimentation jusqu'à 1 100 V –
Partie 2-13: Règles particulières et essais pour les autotransformateurs et les
blocs d'alimentation incorporant des autotransformateurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 29.180 ISBN 978-2-88910-542-7
– 2 – 61558-2-13 © IEC:2009
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .7
3 Terms and definitions .7
4 General requirements .8
5 General notes on tests .8
6 Ratings.8
7 Classification.9
8 Marking and other information .9
9 Protection against electric shock .10
10 Change of input voltage setting .10
11 Output voltage and output current under load .10
12 No-load output voltage .10
13 Short-circuit voltage .11
14 Heating .11
15 Short-circuit and overload protection .11
16 Mechanical strength .11
17 Protection against harmful ingress of dust, solid objects and moisture.11
18 Insulation resistance, dielectric strength and leakage current .11
19 Construction .12
20 Components .12
21 Internal wiring.13
22 Supply connection and other external flexible cable or cords .13
23 Terminals for external conductors.13
24 Provisions for protective earthing .13
25 Screws and connections .13
26 Creepage distances, clearances and distances through insulation.13
27 Resistance to heat, fire and tracking.13
28 Resistance to rusting.13
Annexes .14
Annex C Creepage distances (cr), clearances (cl) and distances through insulation
(dti) Material group II (400 ≤CTI <600) .14
Annex D Creepage distances (cr), clearances (cl) and distances through insulation
(dti) Material group I (CTI ≥600) .14
Annex R Explanations of the application of 4.2 of IEC 60664-1:2007 (see IEC 61558-1
Subclause 26.2).14
Bibliography.15

Figure 101 – Windings .
Figure 102 – Tappings .8
Figure 103 – Windings separated by functional isolation .8

61558-2-13 © IEC:2009 – 3 –
Table 101 – Output voltage difference .11

– 4 – 61558-2-13 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF TRANSFORMERS, REACTORS, POWER SUPPLY UNITS
AND SIMILAR PRODUCTS FOR SUPPLY VOLTAGES UP TO 1 100 V –

Part 2-13: Particular requirements and tests
for auto transformers and power supply units
incorporating auto transformers

FOREWORD
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Internation
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