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UL - 1446 BULLETIN

UL Standard for Safety Systems of Insulating Materials - General

active, Most Current
Organization: UL
Publication Date: 7 June 2019
Status: active
Page Count: 50
scope:

These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems (EIS) for use in the United States, and Class 130(B) or higher EIS for use in Canada, where the thermal factor is the dominating aging factor. These requirements also cover the investigation of the substitution of non-electrical insulating materials (NIM) 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 for the evaluation of an EIS 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.

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 the following:

a) IEEE C57.12.60;

b) IEC 60034-18-31; or

c) IEEE 1776.

Document History

1446 BULLETIN
June 7, 2019
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems (EIS) for use in the United States, and Class 130(B) or higher EIS for...
February 22, 2019
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems (EIS) for use in the United States, and Class 130(B) or higher EIS for...
November 23, 2018
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
August 10, 2018
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
January 30, 2018
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
June 16, 2017
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
April 5, 2017
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
December 2, 2016
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
September 23, 2016
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems (EIS) where the thermal factor is the dominating aging factor. These...
December 11, 2015
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
October 7, 2015
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
December 26, 2014
UL Standard for Safety Systems of Insulating Materials - General
A description is not available for this item.
September 16, 2014
UL Standard for Safety Systems of Insulating Materials - General
The Scope in UL 1446 needs to be reviewed. The text of the Scope may need to be refined or expanded to provide a better description of the actual scope.
July 22, 2011
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
February 11, 2011
UL Standard for Safety Systems of Insulating Materials – General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
November 10, 2010
UL Standard for Safety Systems of Insulating Materials – General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
January 1, 2010
UL Standard for Safety Systems of Insulating Materials – General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
November 5, 2009
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
March 6, 2009
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
January 16, 2009
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
August 8, 2008
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
April 25, 2008
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
February 14, 2008
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
November 2, 2007
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...
July 27, 2007
UL Standard for Safety Systems of Insulating Materials - General
These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems intended for connection to branch circuits rated 600 volts or less. These...

References

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