Low voltage transformers - Part 2: General purpose transformers (Binational standard with UL 5085-2)
This is the harmonized CSA Group and UL standard for low voltage transformers. It is the second edition of CSA C22.2 No. 66.2 and the second edition of UL 5085-2. This edition of CSA C22.2 No. 66.2/UL 5085-2 supersedes the previous edition published on April, 2006.
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;
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.
Low Voltage Transformers - Part 2: General Purpose Transformers (Bi-National standard, with UL 5085-2)