GB/T 29627.3-2023
Aramid pressboard for electrical purposes—Part 3: Specifications for individual materials (English Version)
- Standard No.
- GB/T 29627.3-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 29627.3-2023
- Introduction
1. Standard Overview
GB/T 29627.3-2023 specifies the classification and naming, requirements, inspection rules, marking, packaging, transportation and storage of polyaramid fiberboard for electrical use, and is applicable to the manufacture of polyaramid fiberboard.
2. Comparison of standard frameworks
Standard parts Content overview Scope of application Part 1 Definitions, names and general requirements Terms and basic specifications Part 2 Test methods Physical property tests Part 3 Single material specifications Specific product standards 3. Classification and naming of polyaramid fiberboard
According to GB/T 29627.1—2013, electrical polyaramid fiberboard is divided into the following three types:
Model Characteristics Apparent density g/cm³ APB-LD Low density 0.5~0.7 APB-C Medium density >0.7~1.0 APB-HD High density >1.0~1.2 4. Analysis of performance requirements
The performance requirements of polyaramid fiber paperboard include key indicators such as thickness deviation, apparent density, tensile strength, and elongation at break.
4.1 Thickness deviation
The thickness deviation of low-density (APB-LD type) paperboard is allowed to be ±10%, while the requirements for high-density (APB-HD type) paperboard are higher and the deviation needs to be controlled within a stricter range.
5. Implementation suggestions
To ensure the effective implementation of the standard, it is recommended that enterprises strictly follow the test methods and inspection rules during the production process and conduct regular quality audits and technical training.
GB/T 29627.3-2023 Referenced Document
- GB/T 19264.2-2013 Pressboard and presspaper for electrical purposes.Part 2:Methods of test
- GB/T 29627.1-2013 Aramid pressboard for electrical purposes.Part 1:Definitions,designations and general requirements
- GB/T 29627.2-2013 Aramid pressboard for electrical purposes.Part 2:Methods of test
GB/T 29627.3-2023 history
- 2023 GB/T 29627.3-2023 Aramid pressboard for electrical purposes—Part 3: Specifications for individual materials
