SN EN 61558-2-13 : 2000

1 Scope
2 Normative references
3 Definitions
4 General requirements
5 General notes on tests
6 Ratings
7 Classification
8 Marking and other information
9 Protection against accessibility to hazardous live
      parts
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 and electric strength
19 Construction
20 Components
21 Internal wiring
22 Supply connection and other external flexible cables
      or cords
23 Terminals for external conductors
24 Provision for protective earthing
25 Screws and connections
26 Creepage distances, clearances and distances through
      insulation
27 Resistance to heat, abnormal heat, fire and tracking
28 Resistance to rusting
Annexes

Covers all aspects of safety such as electrical, mechanical and thermal. Applies to portable, stationary, single-phase, poly-phase , air-cooled (natural or forced), independent or associated auto-transformers, with a rated supply voltage less than 1000 V a.c., a rated frequency not exceeding 500 Hz.