GB/T 1981.4-2009
Varnishes used for electrical insulation.Part 4:Polyester-imide varnishes (English Version)

Standard No.

GB/T 1981.4-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 1981.4-2009

Scope

This part of GB/T 1981 specifies the type, requirements, test methods, inspection rules, packaging, marking, storage and transportation of polyesterimide impregnated varnishes. This section applies to H-class polyesterimide impregnating varnishes for electrical insulation.

GB/T 1981.4-2009 Referenced Document

• GB/T 1981.1-2007 Varnishes used for electrical insulation.Part 1:Definitions and general requirements
• GB/T 1981.2-2009 Varnishes used for electrical insulation.Part 2:Methods of test
• GB/T 6109.5-2008 Enamelled round winding wire.Part 5:Polyesterimide enamelled round copper wire,class 180

GB/T 1981.4-2009 history

• 2009 GB/T 1981.4-2009 Varnishes used for electrical insulation.Part 4:Polyester-imide varnishes

GB/T 1981.4-2009 -All Parts