GB/T 7159-1987
AbolishedGeneral rules for the formulation of letter symbols in electrotechnology
电气技术中的文字符号制订通则
Application Summary AI generated
This standard establishes the fundamental rules for creating letter symbols used in Chinese electrotechnical diagrams, equipment markings, and technical documentation. It is applied by electrical engineers and manufacturers in China to ensure consistent representation of components, functions, and signals across circuit diagrams, control panels, and product specifications. The standard harmonizes symbol usage within the domestic electrical industry, supporting clear communication in design, production, and maintenance contexts.
Related Standards
GB/T 19271.1-2003
Protection against lightning electromagnetic impulse--Part 1: General principles
GB/T 4026-2004
Basic and safety principles for man-machine interface，marking and identification--Identification of equipment terminals and of terminations of certain designated conductors，including general rules for an alphanumeric system
GB/T 2900.33-2004
Electrotechnical terminology--Power electronics
GB/T 19529-2004
Structuration of technical information and documentation
GB/T 4728.5-2005
Graphical symbols for diagrams Part 5 Semiconductors and electron tubes
GB/T 19678-2005
Preparation of instructions-Structuring,content and presentation
GB/T 4728.3-2005
Graphical symbols for diagrams part 3 Conductors and connecting devices
GB/T 4728.2-2005
Graphical symbols for diagrams Part 2 Symbol elements,qualifying symbols and other symbols having general application
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.