SN EN 61558-2-9 : 2003

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 of 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 dielectric strength
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, abnormal heat, fire and tracking
28 Resistance to rusting
Annexes

Applies to stationary or portable single-phase air-cooled (natural or forced) associated safety isolating transformers for class 3 handlamps for tungsten filament lamps, having a rated supply voltage not exceeding 1000 V a.c., a rated frequency not exceeding 500 Hz and a rated output not exceeding 10 kVA.