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Standards GB - Chinese national standards - Page 6070
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 14598.3-1993
WITHDRAWN
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Electrical relays—Part 5:Insulation tests for electrical relays
WITHDRAWN published on 5.9.1993
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GB/T 14598.3-2006
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Electrical relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests
WITHDRAWN published on 14.3.2006
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GB/T 14598.300-2008
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General specification for microcomputer-based transformer protection equipment
WITHDRAWN published on 18.6.2008
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GB/T 14598.301-2010
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General specification of transformer fault oscillograph equipment for microprocessor-based generator
WITHDRAWN published on 2.9.2010
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GB/T 14598.4-1993
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Electrical relays Part 14:Endurance test for electrical relay contacts—Preferred values for contact loads
WITHDRAWN published on 5.9.1993
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GB/T 14598.5-1993
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Electrical relays—Part 15:Endurance tests for electrical relay contacts—Specification for the characteristics of test equipment
WITHDRAWN published on 5.9.1993
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GB/T 14598.7-1995
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Electrical relays—Part 3:Single input energizing quantity measuring relays with dependent or independent time
WITHDRAWN published on 2.6.1995
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GB/T 14598.8-1995
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Electrical relays—Part 20:Protection (protective)systems
WITHDRAWN published on 24.7.1995
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GB/T 14598.8-2008
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Electrical relays - Part 20: Protection systems
WITHDRAWN published on 18.6.2008
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GB/T 14598.9-1995
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Electrical relays. Part 22: Electrical disturbance tests for measuring relays and protection equipment. Section three--Radiated electromagnetic field disturbance tests
WITHDRAWN published on 24.7.1995
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