UL 5085-2 PDF

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:

1. a) Air-cooled transformers and reactors for general use;

2. b) Autotransformers;

3. c) Ferroresonant transformers;

4. d) Cord-connected transformers; and

5. 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.

Summary of Topics

This new edition of ANSI/UL 5085-2 includes Alternate Temperature Rise Test Loading Methods.