GB/T 20831-2007 Replaced National standards

GB/T 20831-2007 Methods of assessment of temperature capability of inter laminar insulation coatings of electrical sheet and strip

Publish Date: 2007-01-11 Implement Date: 2007-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20831-2007

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: \nTest methods for the physical properties of metals

ICS Name: Other testing methods for metal materials

Publish Date: 2007-01-11

Implement Date: 2007-06-01

Pages: 16 pages

Scope

This standard specifies the test method for the temperature characteristics of the interlayer insulation coating of electrical steel sheets (strips). This standard is applicable to the testing of the temperature characteristics of the interlayer insulation coating of electrical steel sheets (strips) within the temperature range of room temperature to 800°C. It includes the following properties of the material: a) Adhesion; b) Interlayer resistance; c) Compression/stacking coefficient.

Development Information

Word Count: 16 Thousand words Pages: 16 pages

Superseded by the following standards

GB/T 20831-2025 Method of test for the thermal endurance of surface insulation coatings of electrical sheet and strip

Referenced Standards

ISO 1519 IEC 60050(131)国际电工词汇 131章:电路理论 GB/T 2522-1988 Magnetic sheet and strip—Methods of measurement of interlamination resistance and lamination factor and coat adhesiveness GB/T 2522-2007 Methods of test for the determination of surface insulation resistance and lamination factor of electric sheet and strip GB/T 2522-2017 Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet GB/T 2900.60-2002 Electrotechnical terminology—Electromagnetism GB/T 9637-2001 Electrotechnical terminology— Magnetic materials and components

Adopt standards

IEC 60404-12:1992

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