Standard 1004-1, Edition 2
UL 1004-1

Standard for Rotating Electrical Machines - General Requirements

UL CSDS Proposal Edition 2 Published Date: December 12, 2014 Last Revision: November 05, 2020

Summary of Topics b1004-1_2_20141212_sum.html

Subject 1004-1

Bulletin Dated: December 12, 2014


The following changes in requirements to the Standard for Rotating Electrical Machines - General Requirements, UL 1004-1, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Revised definitions for air-over motors and continuous duty motors

2. For Preliminary Review Only: Revised temperature test method to include SF

3. For Preliminary Review Only: Temperature test stabilization requirement

4. For Preliminary Review Only: Revisions to direct-support material properties for universal motors

5. For Preliminary Review Only: Alternative method to evaluate materials used as splice insulation

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