CEI EN 61558-2-23 : 2012

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 L - Routine tests (production tests)
Bibliography
Annex ZA (normative) - Normative
         references to international
         publications with their
         corresponding European
         publications

This part of EN/IEC 61558 deals with the electrical, thermal and mechanical safety of construction site transformers and units of measurement incorporating construction site transformers.