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Standards GB - Chinese national standards - Page 69
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB/T 1094.11-2022
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Power transformers—Part 11: Dry-type transformers
Standard published on 9.3.2022
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GB/T 1094.12-2013
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Power transformers—Part 12:Loading guide for dry-type power transformers
Standard published on 17.12.2013
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GB/T 1094.14-2022
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Power transformers—Part 14: Liquid-immersed power transformer using high-temperature insulation materials
Standard published on 9.3.2022
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GB/T 1094.15-2020
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Power transformers—Part 15:Gas-filled power transformers
Standard published on 31.3.2020
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GB/T 1094.16-2013
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Power transformers—Part 16:Transformers for wind turbine applications
Standard published on 17.12.2013
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GB/T 1094.18-2016
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Power transformers—Part 18:Measurement of frequency response
Standard published on 29.8.2016
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GB/T 1094.2-2013
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Power transformers—Part 2:Temperature rise for liquid-immersed transformers
Standard published on 17.12.2013
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GB/T 1094.23-2019
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Power transformers—Part 23:DC magnetic bias suppression devices
Standard published on 10.12.2019
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GB/T 1094.3-2017
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Power transformers—Part 3:Insulation levels,dielectric tests and external clearances in air
Standard published on 29.12.2017
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GB/T 1094.4-2005
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Power transformers—Part 4:Guide to the lightning impulse and switching impulse testing—Power transformers and reactors
Standard published on 26.8.2005
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