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Standard 1446, Edition 8

Standard for Systems of Insulating Materials - General

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Standard 1446, Edition 8 Edition Date: February 22, 2019 $0.00
Summary of Topics b1446_8_20190222_sum.html

Subject 1446

Bulletin Dated: February 22, 2019


The following changes in requirements to the Standard for Systems of Insulating Materials - General, UL 1446, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: The proposed eighth edition of the Standard for Systems of Insulating Materials, UL 1446 as an American National Standard and National Standard of Canada. This standard covers 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. This standard also covers 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.

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