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GB/T 4728.7-2022: Graphical symbols for electrical diagrams - Part 7: Switchgear, controlgear and protective devices
Status: Valid GB/T 4728.7: Evolution and historical versions
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Graphical symbols for electrical diagrams - Part 7: Switchgear, controlgear and protective devices
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Basic data | Standard ID | GB/T 4728.7-2022 (GB/T4728.7-2022) | | Description (Translated English) | Graphical symbols for electrical diagrams - Part 7: Switchgear, controlgear and protective devices | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K04 | | Classification of International Standard | 29.020 | | Word Count Estimation | 102,197 | | Date of Issue | 2022-10-12 | | Date of Implementation | 2023-05-01 | | Older Standard (superseded by this standard) | GB/T 4728.7-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 4728.7-2022: Graphical symbols for electrical diagrams - Part 7: Switchgear, controlgear and protective devices
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 29.020
CCSK04
National Standards of People's Republic of China
Replace GB/T 4728.7-2008
Graphical Symbols for Electrical Diagrams
Part 7.Switching, control and protection devices
Released on 2022-10-12
2023-05-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"
drafting.
This document is part 7 of GB/T 4728 "Graphical Symbols for Electrical Diagrams". GB/T 4728 has released the following parts.
--- Part 1.General requirements;
--- Part 2.Symbol elements, qualifier symbols and other commonly used symbols;
--- Part 3.Conductors and connectors;
--- Part 4.Basic passive components;
--- Part 5.Semiconductor tubes and electron tubes;
--- Part 6.Generation and conversion of electrical energy;
--- Part 7.Switches, control and protection devices;
--- Part 8.Measuring instruments, lamps and signaling devices;
--- Part 9.Telecommunications. switching and peripheral equipment;
--- Part 10.Telecommunications. Transmission;
--- Part 11.Building installation floor plan;
--- Part 12.Binary logic elements;
--- Part 13.Analog components.
This document replaces GB/T 4728.7-2008 "Graphical Symbols for Electrical Diagrams - Part 7.Switches, Control and Protection Devices", and
Compared with GB/T 4728.7-2008, the main technical changes are as follows.
--- Added new symbols. S01848, S01855, S01856, S01857, S01858, S01911, S01912;
--- Added some application notes involved in the new symbols;
---According to the IEC 60617 database standard, the information listed by multiple symbols has been changed from the older version to adopt symbols or apply to symbols
number;
--- Incorporate the symbols abolished in the.2008 edition into Appendix NA.
This document is equivalent to the corresponding version of IEC 60617database "Graphic Symbols for Simplified Diagrams" (English version of snapshot printing on March 2, 2021)
Should part.
The following editorial changes were made to this document.
--- Modified the name of the standard;
--- Added Appendix NA, which lists the repealed --- Graphical symbols for reference only.
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by the National Electrical Information Structure, Documentation and Graphic Symbol Standardization Technical Committee (SAC/TC27).
This document is drafted by. Xiamen Zongshun Construction Engineering Co., Ltd., China Machinery Productivity Promotion Center, Guangzhou Kaihui Electronics Co., Ltd., China
National Aviation Planning, Design and Research Institute Co., Ltd., State Grid Sichuan Electric Power Company Economic and Technological Research Institute, and China Building Standard Design and Research Institute have
Co., Ltd., Institute of Electronic Engineering, China Academy of Engineering Physics, Hangyue Smart Electric Co., Ltd., Dongying Jinfeng Zhengyang Technology Development Co., Ltd.
Co., Ltd., Zhejiang Bada Electronic Instrument Co., Ltd. Shitong Electric Branch, Foshan Tianyi Electric Co., Ltd., Fangfang Electric Co., Ltd.,
Jinggangshan Power Plant of Huaneng International Power Co., Ltd., Guangdong Yudean Xinhui Power Generation Co., Ltd., Kerun Intelligent Control Co., Ltd., China
State Power Construction Group Shandong Electric Power Construction Co., Ltd., Hefei Kangerxin Power System Co., Ltd., Zhejiang Huahui Electric Co., Ltd., Inner Mongolia
Ancient First Machinery Group Co., Ltd.
The main drafters of this document. Gao Yongmei, Zhou Jianyi, Lu Xia, Ren Hao, Xu Lingxian, Jin Song, Chen Weidong, Yang Jianfeng, Fu Ruijun, Ni Honghua,
Ying Kai, Wang Lijian, Hou Jinbao, Huang Xiaoming, Fang Zhongfang, Ge Qiyun, Liu Hongtao, Zou Guoxiang, Cai Xinglin, Qi Xuexue.
The release status of previous versions of this document and the documents it replaces are as follows.
---First published as GB/T 4728.7-1984 in 1984;
---The first revision in.2000;
---The second revision in.2008;
--- This is the third revision.
Introduction
The concept of graphic symbols is usually understood as "transmitting information with intuitive graphics without using language". Graphical symbols for electrical diagrams are drawn
The international general engineering language necessary for electrical schematic diagrams plays an important role in international technical exchanges in the electrical field.
GB/T 4728 aims to specify machinery, electric power, construction, metallurgy, coal, petroleum, railway, transportation, electronics, chemical industry, textile, radio and television, weapons,
Symbols used in electrical design in various fields such as ships, post and telecommunications, aviation, aerospace, information, national defense technology, etc., are divided into 13 parts.
--- Part 1.General requirements;
--- Part 2.Symbol elements, qualifier symbols and other commonly used symbols;
--- Part 3.Conductors and connectors;
--- Part 4.Basic passive components;
--- Part 5.Semiconductor tubes and electron tubes;
--- Part 6.Generation and conversion of electrical energy;
--- Part 7.Switches, control and protection devices;
--- Part 8.Measuring instruments, lamps and signaling devices;
--- Part 9.Telecommunications. switching and peripheral equipment;
--- Part 10.Telecommunications. Transmission;
--- Part 11.Building installation floor plan;
--- Part 12.Binary logic elements;
--- Part 13.Analog components.
Graphical Symbols for Electrical Diagrams
Part 7.Switching, control and protection devices
1 Scope
S00218
Name. Contactor function
Contactor function
Status. Standard
IEC Release Date..2001-07-01
Previous standard serial number. GB/T 4728.7 07-01-01
Keywords.contactor,contact
For. S00284,S00285,S00286,S00377,S01413
Application Note. A00061
Shape category. semicircle
Functional category. - functional element or attribute
Application category. conceptual elements or qualifiers
S00219
Name. Circuit Breaker Function
Status. Standard
IEC Release Date..2001-07-01
Previous standard serial number. GB/T 4728.7 07-01-02
Keywords.circuit breaker
For. S00287,S01413,S01860
Application Note. A00061
Shape category. straight line
Functional category. - functional element or attribute
Application category. conceptual elements or qualifiers
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