GB/T 11026.4-1999
Guide for the determination of thermal endurance properties of electrical insulating materials-Part 4: Ageing ovens-Single-chamber ovens (English Version)

Standard No.
GB/T 11026.4-1999
Language
Chinese, Available in English version
Release Date
1999
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status
 2013-06
Replace By
GB/T 11026.4-2012
Latest
GB/T 11026.4-2012
Scope
This standard specifies the minimum requirements for vented, electrically heated single-chamber ovens (with or without forced air circulation) for the evaluation of the heat resistance of electrical insulation. It also specifies the acceptance tests and in-service control tests for aging ovens. This standard applies to ovens operating within the entire or partial range of 20°C above this environment up to 500°C. NOTE: Specifications for multi-chamber ovens are under consideration.

GB/T 11026.4-1999 history

  • 2012 GB/T 11026.4-2012 Electrical insulating materials.Thermal endurance properties.Part 4:Ageing ovens.Single-chamber ovens
  • 1999 GB/T 11026.4-1999 Guide for the determination of thermal endurance properties of electrical insulating materials-Part 4: Ageing ovens-Single-chamber ovens
Guide for the determination of thermal endurance properties of electrical insulating materials-Part 4: Ageing ovens-Single-chamber ovens

GB/T 11026.4-1999 -All Parts

GB/T 11026.1-2016 Heat resistance of electrical insulating materials - Part 1: Aging procedures and evaluation of test results GB/T 11026.10-2019 Electrical insulating materials—Thermal endurance properties—Part 10: Accelerated determination of relative thermal endurance using analytical test methods(RTEA)—Instructions for calculation based on activation energy GB/T 11026.2-2012 Electrical insulating materials.Thermal endurance properties.Part 2:Choice of test criteria GB/T 11026.3-2017 Electrical insulating materials—Thermal endurance properties —Part 3: Intrucations for calculating thermal endurance characteristics GB/T 11026.4-2012 Electrical insulating materials.Thermal endurance properties.Part 4:Ageing ovens.Single-chamber ovens GB/T 11026.5-2010 Electrical insulating materials.Thermal endurance properties.Part 5:Ageing ovens.Precision ovens for use up to 300℃ GB/T 11026.6-2010 Electrial insulating materials.Thermal endurance properties.Part 6:Ageing ovens.Multi-chamber ovens GB/T 11026.7-2014 Electrical insulating materials.Thermal endurance properties.Part 7: Determination of relative thermal endurance index (RTE) of insulating material GB/T 11026.8-2014 Electrical insulating materials.Thermal endurance properties.Part 8: Determination of thermal endurance indices (TI and RTE) of an insulating material using the fixed time frame method GB/T 11026.9-2016 Electrical insulating materials.Thermal endurance properties.Part 9:Instructions for calculating thermal endurance characteristics using simplified procedures



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