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Standards GB - Chinese national standards - Page 7069
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 22382-2008
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Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages of 72.5kV and above
WITHDRAWN published on 19.9.2008
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GB/T 22383-2008
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Rigid,gas-insulated transmisson lines for rated voltage of 72.5 kV and above
WITHDRAWN published on 19.9.2008
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GB/T 22384-2008
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Testing specification of security and stability control system for power system
WITHDRAWN published on 24.9.2008
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GB/T 22385-2008
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Specification for acceptance of dam safety monitoring system
WITHDRAWN published on 24.9.2008
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GB/T 22386-2008
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Common format for transient data exchange (COMTRADE) for power systems
WITHDRAWN published on 24.9.2008
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GB/T 22387-2008
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Residual current operated relay
WITHDRAWN published on 24.9.2008
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GB/T 22389-2008
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Guidelines of metal oxide surge arresters without gaps for HVDC converter stations
WITHDRAWN published on 24.9.2008
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GB/T 2239-1991
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(The parts and units of jigs and fixtures. Universal pillar)
WITHDRAWN published on 1.1.1991
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GB/T 22391-2008
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Test method of endurance for solid tyres—Drum method
WITHDRAWN published on 24.9.2008
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GB/T 22393-2008
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Condition monitoring and diagnostics of machines—General guidelines
WITHDRAWN published on 27.9.2008
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