CSA E61558.2.1 : 2003 : R2017

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 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 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

Applies to stationary or portable, single-phase or polyphase, aircooled separating transformers, associated or not, having a rated supply voltage not exceeding 1000 V a.c., a rated frequency not exceeding 500 Hz, and a rated output not exceeding: - 1 kVA for single-phase transformers; - 5 kVA for polyphase transformers. Also applies to separating transformers having a rating up to 40 kVA, however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier.