GB/T 37145-2018_English: PDF (GB/T37145-2018)
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| GB/T 37145-2018 | 439 |
Add to Cart
|
4 days
|
Cabinets for low-voltage switchgear -- Mechanical structures for draw out functional unit
| Valid |
| Standard ID | GB/T 37145-2018 (GB/T37145-2018) | | Description (Translated English) | Cabinets for low-voltage switchgear -- Mechanical structures for draw out functional unit | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K05 | | Classification of International Standard | 31.240 | | Word Count Estimation | 22,274 | | Date of Issue | 2018-12-28 | | Date of Implementation | 2019-07-01 |
GB/T 37145-2018
Cabinets for low--voltage switchgear--Mechanical structures for drawout functional unit
ICS 31.240
K05
National Standards of People's Republic of China
Low-voltage cabinet withdrawable functional unit mechanical structure
Published on.2018-12-28
2019-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword III
1 range 1
2 Normative references 1
3 Terms and Definitions 2
4 Environmental adaptability 2
4.1 Requirements 2
4.2 Inspection and testing 2
4.3 Qualification judgment 2
5 surface 2
5.1 Requirements 2
5.2 Inspection and testing 3
5.3 Qualification Decision 3
6 position and lock 3
7 insulation performance 3
7.1 General 3
7.2 Creepage distance 3
7.3 Insulation resistance 4
7.4 Leakage current 4
7.5 Surface resistance mark 5
7.6 Withstand voltage test capability 5
7.7 withstand AC power frequency voltage test capability 6
7.8 Temperature rise 6
7.9 Heat-resistant wire test 7
7.10 Grounding 7
8 Mechanical properties 8
8.1 Impact 8
8.2 Collision 8
8.3 Free fall 9
8.4 Vibration 9
8.5 Mechanical life 9
9 protection level 10
9.1 Requirements 10
9.2 Inspection and testing 10
9.3 Qualification decision 10
10 information 10
10.1 Sign Identification 10
10.2 Instruction Manual 11
11 Inspection rules 11
11.1 Inspection Classification 11
11.2 Inspection Report 11
Appendix A (Normative) The position and position lock of the mechanical mechanism (drawer) of the withdrawable functional unit, electrical status,
Relevant regulations for interlocking, etc. 12
Appendix B (informative) Type test items for mechanical structures of different withdrawable functional units 14
Table 1 Minimum creepage distance under long-term stress under defined conditions 3
Table 2 Impact withstand voltage value under defined conditions 5
Table 3 AC power frequency voltage value corresponding to rated insulation voltage 6
Table 4 Heat resistance rating 6
Table 5 Temperature rise limit 7
Table 6 Meaning of the first digit of the IP rating 10
Table B.1 Type test items for different electrical and mechanical structures
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents.
This standard is proposed and managed by the National Electrical and Electronic Equipment Structure Standardization Technical Committee (SAC/TC34).
This standard was drafted. Jiangsu Tiangang Cabinet Co., Ltd., Zhangjiagang Tianyi Electric Complete Structure Parts Co., Ltd., Cixi Qiguo Electric Appliance Co., Ltd.
Co., Ltd., Wankong Zhizhi Zhejiang Electric Co., Ltd., Nanyang Electric Group Co., Ltd., Xingji Electric Co., Ltd., Yueqing Feilei Cabinet Lock Co., Ltd.
the company.
The main drafters of this standard. Wu Yi, Zhu Yabin, Jiang Guoqing, Cai Hengcai, Li Zhengqing, Shui Liangyan, Xu Feilei.
Low-voltage cabinet withdrawable functional unit mechanical structure
1 Scope
This standard specifies the environmental adaptability, surface, position and lock of the mechanical structure products for the extractable functional unit in the low-voltage cabinet.
Edge performance, mechanical properties, degree of protection, information and inspection rules.
This standard applies to the installation and supply to the user by the cabinet manufacturer, and the rated voltage is less than 1000V, the frequency is 50Hz (or
60Hz), or DC below 1500V, including but not limited to.
---The mechanical structure (drawer) used to apply the withdrawable functional unit in the electrical circuit, the material for manufacturing these products can be metal
Material, it can also be an insulating material;
---Mechanical mechanism for realizing the function unit to push or pull out, and to realize the positional positioning and locking function of the functional unit.
Moreover, these products are generally equipped with electrical components for providing electrical signals;
--- for connecting the mechanical coupling mechanism between the operable electrical component and the handle shaft in the functional unit;
--- Guide rails, hinges, etc. for functional units for supporting or positioning;
--- Products used to achieve mechanical interlocking.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2423.1-2008 Environmental testing of electric and electronic products - Part 2. Test methods Test A. Low temperature
GB/T 2423.2-2008 Environmental testing of electrical and electronic products - Part 2. Test methods Test B. High temperature
GB/T 2423.3-2016 Environmental testing - Part 2. Test method test Cab. constant damp heat test
GB/T 2423.5-1995 Environmental testing for electric and electronic products - Part 2. Test methods Test Ea and guide. Impact
GB/T 2423.6-1995 Environmental testing for electric and electronic products - Part 2. Test methods Test Eb and guide. Collision
GB/T 2423.8-1995 Environmental testing of electric and electronic products - Part 2. Test method test Ed. Free fall
GB/T 2423.10-2008 Environmental testing of electric and electronic products - Part 2. Test method test Fc. Vibration (sinusoidal)
GB/T 2423.17-2008 Environmental testing of electric and electronic products - Part 2. Test method test Ka. salt spray
GB/T 2828.1-2012.Sampling procedures for counting sampling - Part 1. Quantitative inspection by batches
plan
GB/T 4207-2012 Determination of resistance to tracking marks and comparison of electrical tracking index of solid insulating materials
GB/T 4208-2017 enclosure protection grade (IP code)
GB/T 5169.10-2017 Electrical and electronic products - Fire hazard testing - Part 10. Glowing wire/hot wire basic test method burning
Hot wire device and general test method
GB/T 5169.11-2017 Electrical and electronic products - Fire hazard testing - Part 11. Glowing wire/hot wire basic test method
Glowing wire flammability test method (QWEPT)
GB/T 11021-2014 Electrical insulation heat resistance and representation
GB/T 12113-2003 Method for measuring contact current and protective conductor current
GB/T 14048.1-2012 Low-voltage switchgear and control equipment - Part 1. General
GB/T 16842-2016 Cover tester for protection of people and equipment
......
|