GB/T 17648-1998
Active
GB/T 31838.7-2021
Active
National standards
GB/T 31838.7-2021 Solid insulating materials—Dielecteric and resistive properties—Part 7:Resistive properties(DC method)—Measurement of volume resistance and volume resistivity at elevated temperatures
GB/T 31838.7-2021 Solid insulating materials—Dielecteric and resistive properties—Part 7:Resistive properties(DC method)—Measurement of volume resistance and volume resistivity at elevated temperatures
Price:
$ 54
Basic Information
Standard Code:
GB/T 31838.7-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Electrician's insulating materials and their products
ICS Name:
Comprehensive Insulation Materials
Publish Date:
2021-05-21
Implement Date:
2021-12-01
Pages:
14 pages
Scope
This document specifies the test methods for the volume resistance and volume resistivity of insulating materials under DC voltage and at temperatures not exceeding 800℃. This document is applicable to high-temperature-resistant materials such as mica boards and alumina ceramics.
Development Information
Same series standard
GB/T 31838.5-2021 Solid insulating materials—Dielectric and resistive properties—Part 5:Resistive properties(DC method)—Volume resistance and volume resistivity of impregnation and coating materials
GB/T 31838.6-2021 Solid insulating materials—Dielectric and resistive properties—Part 6:Dielectric properties(AC method)—Relative permittivity and dielectric dissipation factor(frequencies 0.1Hz~10 MHz)
Replace the following standards
Referenced Standards
Adopt standards
IEC 62631-3-4:2019
Related Standards
GB/T 11027-1999
Replaced
GB/T 11027-1999 Specification for insulating varnishes containing solvent-Specifications for individual materials-Requirements for hot curing impregnating varnishes
GB/T 11026.4-1999
Replaced
GB/T 11026.4-1999 Guide for the determination of thermal endurance properties of electrical insulating materials—Part 4:Ageing ovens—Single-chamber ovens
GB/T 11028-1999
Active
GB/T 11028-1999 Test methods for the determination of bond strength of impregnating agents to an enamelled wire substrate
GB/T 1408.1-1999
Replaced
GB/T 1408.1-1999 Methods of test for electric strength of solid insulating materials-Tests at power frequencies
GB/T 11026.2-2000
Replaced