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GB/T 45655-2025: General modular electrical cabinets with narrow-sized dimensions
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| GB/T 45655-2025 | English | 539 |
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General modular electrical cabinets with narrow-sized dimensions
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GB/T 45655-2025
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Basic data | Standard ID | GB/T 45655-2025 (GB/T45655-2025) | | Description (Translated English) | General modular electrical cabinets with narrow-sized dimensions | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K05 | | Classification of International Standard | 31.240 | | Word Count Estimation | 26,225 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45655-2025: General modular electrical cabinets with narrow-sized dimensions---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 31.240
CCSK05
National Standard of the People's Republic of China
Universal narrow size modular electrical cabinet
Released on 2025-04-25
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Size 2
4.1 Metric module 2
4.2 Imperial Mechanical Structure 2
4.3 Compatible cabinets 2
4.4 Coordination Dimensions 2
5 Verification samples, test conditions and sequence 2
5.1 Verify sample manufacturing materials 2
5.2 Verification sample composition 3
5.3 Verification samples and their tests 3
5.4 Verification sample configuration and simulated load 3
5.5 Test conditions 5
5.6 Test sequence 5
5.7 Verification level identification 5
6 Requirements 5
6.1 Surface 5
6.2 Continuity of protection circuit 5
6.3 Protective grounding terminal 5
6.4 Low temperature, high temperature and damp heat (cycle) resistance 5
6.5 Resistance to industrial atmosphere 6
6.6 Rated load resistance test performance 7
6.7 Vertical structure test performance 7
6.8 Stiffness resistance test performance 8
6.9 Vibration and shock test performance 9
6.10 Protection level 9
6.11 Anti-collision performance 9
6.12 Earthquake resistance 10
6.13 Flammability 10
7 Test and qualification determination 10
7.1 Surface inspection 10
7.2 Continuity test of protection circuit 10
7.3 Inspection of protective grounding terminal 10
7.4 Low temperature, high temperature and damp heat (cycle) test 10
7.5 Industrial atmosphere test 10
7.6 Rated load test 10
7.7 Vertical structure test 11
7.8 Stiffness test 11
7.9 Vibration and shock test 12
7.10 Protection level verification 12
7.11 Collision Test 12
7.12 Earthquake Test 12
7.13 Flammability test 12
8 Inspection Rules 12
8.1 Inspection categories 12
8.2 Inspection Items 12
Appendix A (Normative) Cabinet seismic test method 14
References 19
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.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Technical Committee for Comprehensive Standardization of Electrical and Electronic Equipment Structures (SAC/TC34).
This document was drafted by. Beijing Institute of Electrical Technology and Economics of Machinery Industry, Suzhou Electric Science Research Institute Co., Ltd., Jiangsu Group
Ling Energy Technology Co., Ltd., Henan Xuji Electric Equipment Co., Ltd., Beijing Sifang Jibao Engineering Technology Co., Ltd., Shengzhongyi Electric Power Technology
Co., Ltd., Hubei Jinfu Technology Co., Ltd., Jiangsu Tiangang Cabinet Co., Ltd., Zhangjiagang Tianyi Electric Complete Structural Parts Co., Ltd.,
Jiangsu Tianxiang Electric Co., Ltd., Zhangjiagang Tianyue Electric Co., Ltd., Beijing Sifang Relay Protection Automation Co., Ltd., China Electronics Technology Group Co., Ltd.
The 36th Institute of China National Technology Group Corporation, State Power Nanjing Automation Co., Ltd., Nanjing NARI Relay Protection Electric Co., Ltd., Legrand Low Voltage
Electric (Wuxi) Co., Ltd., Nanyang Electric Group Co., Ltd., Yunda Energy Technology Group Co., Ltd., China Quality Certification Center
Co., Ltd., Xuji Electric Co., Ltd., and Yueqing Feilei Cabinet Lock Co., Ltd.
The main drafters of this document are. Guo Yan, Hu Chun, Jiang Zhongyao, Wang Tinghua, Li Jianxia, Xiong Jiawei, Li Shuannan, Huang Fentian, Xu Feilei, Wu Jue,
Zhu Yabin, Ye Jun, Lu Hu, Jiang Xincheng, Jin Dayuan, Yu Chunlin, Yu Haibo, Ma Chaoqun, Chu Jianchao, Pan Zhengdong, Li Zhengqing, Wang Jiangtao, Zhao Zhijian,
Wang Jiule, Wang Gang, Cai Huimin, Meng Wei, Huang Guanglin, and Ge Guiyi.
Universal narrow size modular electrical cabinet
1 Scope
This document specifies the dimensions, verification samples, and test conditions of modular electrical cabinets (hereinafter referred to as cabinets) with a width of 375mm~500mm.
Conditions and sequence, requirements, tests and qualification determination, and inspection rules.
This document applies to the production, manufacturing and acceptance of cabinets.
Note. The technical requirements indicated in this document do not cover all cabinet requirements. Manufacturers and users should note that there may be some extension requirements when applying cabinet products.
If the design may affect the safety performance of the product, if there is a risk, the manufacturer and the user should have an appropriate agreement and agree on the risk-bearing
responsibility.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 2423.1 Environmental testing for electric and electronic products Part 2.Test methods Test A. Low temperature
GB/T 2423.2 Environmental testing for electric and electronic products Part 2.Test methods Test B. High temperature
GB/T 2423.4 Environmental testing for electric and electronic products Part 2.Test method Test Db. Cyclic damp heat (12h 12h cycle
ring)
GB/T 2423.5 Environmental testing Part 2.Test method Test Ea and guidance. Impact
GB/T 2423.10 Environmental testing Part 2.Test methods Test Fc. Vibration (sinusoidal)
GB/T 2423.17 Environmental testing Part 2.Test methods Test Ka. Salt spray
GB/T 2423.18 Environmental testing Part 2.Test methods Test Kb. Salt spray, alternating (sodium chloride solution)
GB/T 2423.19 Environmental testing Part 2.Test methods Test Kc. Sulfur dioxide test for contact points and connectors
GB/T 2423.20 Environmental testing Part 2.Test methods Test Kd. Hydrogen sulfide test for contact points and connectors
GB/T 2423.43 Environmental testing for electric and electronic products Part 2.Test methods for vibration, shock and similar dynamic test specimens
Installation
GB/T 2423.48 Environmental testing Part 2.Test methods Test Ff. Vibration time history and sine beat frequency method
GB/T 2424.11 Environmental testing Part 2.Test methods Test Kc. Guidelines for sulfur dioxide tests on contact points and connectors
GB/T 2424.25 Environmental testing Part 3.Test guidelines Seismic test method
GB/T 3047.1 Basic dimension series of panels, racks and cabinets with a height of 20 mm
GB/T 4208 Enclosure protection grade (IP code)
GB/T 4798.3-2023 Classification of environmental conditions Classification of environmental parameter groups and their severity classification Part 3.Weather protection
Fixed use in protective places
GB/T 5169.16-2017 Fire hazard tests for electrical and electronic products Part 16.Test flame 50W horizontal and vertical fire
Flame test method
GB/T 8582 Terminology of mechanical structures of electrical and electronic equipment
GB/T 17214.4 Operating conditions for industrial process measurement and control equipment Part 4.Effects of corrosion and erosion
GB/T 19290.1 Modular series of mechanical structures of developing electronic equipment Part 1.General specification
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