CSA E61558.2.4 : 2003 : R2012

FOREWORD
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 voltage
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 cable
   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
Annex C - Material group II
Annex D - Material group I

Covers stationary or portable, single-phase or polyphase, air-cooled isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c. and rated frequency not exceeding 500 Hz, the rated output not exceeding: - 25 kVA for single-phase transformers; - 40 kVA for polyphase transformers.