This CSA Standard is a bi-national Standard with UL 5085-2. 1 Scope 1.1
As noted in Low Voltage Transformers - Part 1: General Requirements, UL 5085-1, or CSA C22.2 No. 66.1, Low Voltage Transformers - Part 1: General Requirements, the requirements of Part 2 cover:
a) Air-cooled transformers and reactors for general use;
b) Autotransformers;
c) Ferroresonant transformers;
d) Cord-connected transformers; and
e) Transformers incorporating overcurrent or over-temperature protective devices, transient voltage surge protectors, or capacitors. 1.7
These requirements do not cover Class 2 and Class 3 transformers (which are evaluated in Part 3). 1.8
Part 2 is intended to be used in conjunction with Part 1. The numbering of the clauses in Part 2 corresponds to the numbered clauses in Part 1. The requirements in Part 1 apply unless modified by Part 2.