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Standards GB - Chinese national standards - Page 996
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 18802.11-2020
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Low-voltage surge protective devices(SPD)—Part 11: Surge protective devices connected to low-voltage power systems—Requirements and test methods
Standard published on 14.12.2020
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GB/T 18802.12-2024
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Low-voltage surge protective device (SPD)—Part 12:Surge protective devices connected to low-voltage power systems—Selection and application principles
Standard published on 28.5.2024
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GB/T 18802.21-2016
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Low-voltage surge protective devices—Part 21: Surge protective devices connected to telecommunications and signaling networks—Performance requirements and testing methods
Standard published on 24.2.2016
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GB/T 18802.22-2019
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Low-voltage surge protective devicesPart 22:Surge protective devices connected to telecommunications and signalling networksSelection and application principles
Standard published on 10.12.2019
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GB/T 18802.31-2021
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Low-voltage surge protective devices—Part 31: Surge protective devices connected to photovoltaic installations—Requirements and test methods
Standard published on 9.3.2021
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GB/T 18802.311-2017
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Components for low-voltage surge protective devices—Part 311: Performance requirements and test circuits for gas discharge tubes(GDT)
Standard published on 1.11.2017
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GB/T 18802.312-2017
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Components for low-voltage surge protective devices—Part 312: Selection and application principles for gas discharge tubes(GDT)
Standard published on 29.12.2017
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GB/T 18802.32-2021
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Low-voltage surge protective devices—Part 32: Surge protective devices connected to photovoltaic installations—Selection and application principles
Standard published on 9.3.2021
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GB/T 18802.321-2007
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Components for low-voltage surge protective devices - Part 321: Specifications for avalanche breakdown diode(ABD)
Standard published on 21.6.2007
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GB/T 18802.331-2024
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Components for low-voltage surge protection—Part 331: Performance requirements and test methods for metal oxide varistors (MOV)
Standard published on 28.5.2024
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