GB/T 39891-2021
Electrical endurance testing for circuit-breakers above a rated voltage of 52 kV (English Version)

Standard No.

GB/T 39891-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 39891-2021

Scope

This document specifies the general principles of electrical durability tests for circuit breakers of 52kV and above, test samples, electrical durability test procedures separate from standard type tests, electrical durability test procedures combined with standard type tests, no-load tests, wear tests and acceptance testing. This document applies to E2 class SF6 circuit breakers of 52kV and above for overhead lines.

GB/T 39891-2021 Referenced Document

• GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards
• GB/T 1984-2014 High-voltage alternating-current circuit-breakers
• GB/T 2900.20-2016 Electrotechnical terminology.High-voltage switchgear and controlgear
• GB/T 7674-2008 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5kV and above

GB/T 39891-2021 history

• 2021 GB/T 39891-2021 Electrical endurance testing for circuit-breakers above a rated voltage of 52 kV