GB/T 15637-1995
Replaced
GB/T 11026.3-2025
Active
National standards
GB/T 11026.3-2025 Electrical insulating materials—Thermal endurance properties—Part 3:Instructions for calculating thermal endurance characteristics
GB/T 11026.3-2025 Electrical insulating materials—Thermal endurance properties—Part 3:Instructions for calculating thermal endurance characteristics
Price:
$ 149
Basic Information
Standard Code:
GB/T 11026.3-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Electrician's insulating materials and their products
ICS Name:
Other standards related to electricity and magnetism
Publish Date:
2025-10-05
Implement Date:
2026-05-01
Pages:
56 pages
Scope
This document specifies the calculation procedure for deriving heat resistance characteristic parameters based on the test data obtained under fixed aging temperatures and variable aging times using the methods specified in GB/T 11026.1 and GB/T 11026.2 [1].
The test data can be obtained through non-destructive tests, destructive tests, or inspection tests. However, the data obtained from non-destructive tests or inspection tests may be incomplete, as the tests are terminated at a certain point after the median time during the testing process.
This document illustrates the calculation procedure through examples and recommends suitable computer programs for the calculation.
[1] GB/T 11026.1 and GB/T 11026.2 are Chinese national standards for the determination of heat resistance characteristics of electrical insulating materials under accelerated aging conditions.
Development Information
Same series standard
GB/T 11026.7-2025 Electrical insulating materials—Thermal endurance properties—Part 7:Determination of relative temperature index(RTI)of an insulating material
GB/T 11026.8-2025 Electrical insulating materials—Thermal endurance properties—Part 8:Determination of thermal endurance indices(TI and RTI) of an insulating material using the fixed time frame method
Replace the following standards
Referenced Standards
GB/T 11026.1-2003 Electrical insulating materials-Properties of thermal endurance—Part 1:Ageing procedures and evaluation of test results
GB/T 11026.1-2016 Electrical insulating materials—Thermal endurance properties—Part 1:Ageing procedures and evaluation of test results
GB/T 11026.2-2000 Guide for the determination of thermal endurance properties of electrical insulating materials Part 2:Choice of test criteria
GB/T 11026.2-2012 Electrical insulating materials—Thermal endurance properties—Part 2:Choice of test criteria
Adopt standards
IEC 60216-3:2021
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