FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 General notes on tests
6 Ratings
7 Classification
8 Marking and other information
9 Protection against electric shock
10 Change of input voltage setting
11 Output voltage and output current under load
12 No-load output voltage
13 Short-circuit voltage
14 Heating
15 Short circuit and overload protection
16 Mechanical strength
17 Protection against harmful ingress of dust, solid
   objects and moisture
18 Insulation resistance, dielectric strength and
   leakage current
19 Construction
20 Components
21 Internal wiring
22 Supply connection and other external flexible
   cables or cords
23 Terminals for external conductors
24 Provisions for protective earthing
25 Screws and connections
26 Creepage distances, clearances and distances
   through insulation
27 Resistance to heat, fire and tracking
28 Resistance to rusting
Annex A (normative) - Measurement of creepage
        distances and clearances
Annex B (normative) - Testing a series of transformers
Annex C (normative) - Creepage distances (cr),
        clearances (cl) and distances through
        insulation (dti) Material group II
        (400 <= CTI < 600)
Annex D (normative) - Creepage distances (cr),
        clearances (cl) and distances through insulation
        (dti) Material group I (CTI >= 600)
Annex E (normative) - Glow-wire test
Annex F (normative) - Requirements for manually
        operated switches which are parts of
        transformers assembly
Annex G (normative) - Tracking test
Annex H (normative) - Electronic circuits
Annex I (void)
Annex J (normative) - Measuring network for
        touch-currents
Annex K (normative) - Insulated winding wires
        for use as multiple layer insulation
Annex L (informative) - Routine tests (production tests)
Annex M (informative) - Examples to be used
        as a guide for 19.1
Annex N (informative) - Examples of points of
        application of test voltages
Annex O (void)
Annex P (informative) - Examples of points of
        measurement of creepage distances and
        clearances
Annex Q (informative) - Explanation of IP
        numbers for degrees of protection
Annex R (normative) - Explanations of the
        application of 4.1.1.2.1 of IEC 60664
Annex S (void)
Annex T (void)
Annex U (informative) - Optional t[w]-marking of
        transformers
Annex V (informative) - Symbols to be used for
        thermal cut-outs
Annex W (normative) - Coated printed circuit boards
Bibliography
Index of defined terms