GB/T 4728.7-2008
AbolishedGraphical symbols for diagrams - Part 7：Switchgear,controlgear and protective devices
电气简图用图形符号 第7部分：开关、控制和保护器件
Application Summary AI generated
This standard defines the graphical symbols used in electrical diagrams to represent switchgear, controlgear, and protective devices. It is applied by electrical engineers and technicians in China for creating schematic diagrams, wiring plans, and technical documentation across industries such as power distribution, industrial automation, and building electrical systems. The standard ensures consistent and unambiguous representation of components like circuit breakers, relays, contactors, and fuses in design and maintenance contexts.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.