Systems of Insulating Materials – General

Standards Development Organisation:

Underwriters Laboratories Inc.

Working Program:

View the UL work program

Designation Number:

ANSI/CAN/UL 1446

Status:

Proceeding to development

SDO Comment Period Start Date:

2016-04-05

SDO Comment Period End Date:

2016-04-26

Posted On:

2016-03-24

Scope:

These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems where the thermal factor is the dominating aging factor. These requirements also cover the investigation of the substitution of minor components of insulation in a previously evaluated insulation system and also the test procedures to be used in the evaluation of magnet wire coatings, magnet wires, and varnishes.

These requirements do not establish thermal ratings for/or alter established thermal ratings for individual components.

These requirements do not cover insulation systems exposed to radiation or operating in oils, refrigerants, soaps, or other media that potentially degrade insulating materials.

When any performance aspect of an end-product requirement is not covered by this standard, the applicable standard shall be used. Top of Form

These requirements do not cover electrical insulation systems where transient overvoltages or partial discharge are present. Such electrical insulation systems shall be evaluated to the appropriate standard for the application. Such standards include, but are not limited to, IEEE C57.12.60, IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformer, Including Open-Wound, Solid-Cast, and Resin-Encapsulated Transformers.

Project need:

Joint Canada-United States National Standard

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.