CEI EN 61558-2-3 : 2011

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 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
27 Resistance to heat, fire and tracking
28 Resistance to rusting
Annex C - Creepage distances (cr), clearances (cl)
          and distances through insulation (dti) -
          Material group II (400 <= CTI < 600)
Annex D - Creepage distances (cr), clearances (cl)
          and distances through insulation
          (dti) - Material group I (CTI >= 600)
Annex ZA (normative) - Normative references to
          international publications with their
          corresponding European publications

Describes the safety of ignition transformers for gas and oil burners. Ignition transformers incorporating electronic circuits are also covered by this standard.