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GB/T 38428.1-2019: Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices -- Part 1: General requirements
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Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices -- Part 1: General requirements
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GB/T 38428.1-2019
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Basic data | Standard ID | GB/T 38428.1-2019 (GB/T38428.1-2019) | | Description (Translated English) | Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices -- Part 1: General requirements | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K30 | | Classification of International Standard | 29.120.30 | | Word Count Estimation | 102,190 | | Date of Issue | 2019-12-31 | | Date of Implementation | 2020-07-01 | | Quoted Standard | GB/T 2099.1-2008; GB/T 2423.4-2008; GB/T 2423.7-2018; GB/T 2423.55-2006; GB/T 2900.83-2008; GB/T 4208-2017; GB 4943.21; GB 4943.23; GB 4943.1; GB 4943.22; GB/T 5013.1; GB/T 5013.2; GB/T 5013.3; GB/T 5013.4; GB/T 5013.5; GB/T 5013.6; GB/T 5013.7; GB/T 5013 | | Adopted Standard | IEC TS 62735-1-2015, MOD | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the technical requirements for the type, size, structure, electrical properties, and mechanical properties of DC plugs and sockets for information and communication technology (ICT) equipment installed in data centers and telecommunication center rooms. This standard applies to plugs and fixed socket-outlets of class I equipment having two live contacts and earthing contacts, rated power not exceeding 4.0kW, and rated voltages ranging from 240V to 400V DC. They are only used for direct current information and communication technology equipment and products complying with GB 4943. | GB/T 38428.1-2019: Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment installed in data centres and telecom central offices -- Part 1: General requirements
---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.
(DC plugs and sockets for information and communication technology (ICT) equipment installed in data center and telecommunications room Part 1. General requirements)
ICS 29.120.30
K30
National Standards of People's Republic of China
Data center and telecommunications center room installation information and
DC plug and socket for communication technology (ICT) equipment
Part 1. General requirements
2019-12-31 released 2020-07-01 implemented
State Administration of Market Supervision
Published by the National Standardization Administration
Contents
Foreword Ⅴ
1 Scope 1
2 Normative references 2
3 Terms and definitions 2
4 General requirements 6
5 General notes on tests 6
6 Rating 7
7 Classification 7
8 logo 8
9 Size check 10
10 Protection against electric shock 10
11 Grounding measures 12
12 Terminals and ends 12
13 Socket structure 21
14 Plug structure 26
15 Interlock socket 29
16 Aging resistance, protection and moisture protection provided by the housing 29
17 Insulation resistance and electrical strength 30
18 Earthing contact work 31
19 Temperature rise 32
20 breaking capacity 34
21 Normal operation 34
22 Force required to remove plug 35
23 Flexible cables and connections 36
24 Mechanical strength 39
25 heat resistant 44
26 Screws, current-carrying parts and their connections 45
27 Creepage distance, clearance and distance through sealant 46
28 Insulation material is resistant to abnormal heat and flame 48
29 Anti-rust performance 49
30 Additional test for pins with insulating sheath 50
31 Plugs and sockets tested in locked condition 51
Appendix A (Normative Appendix) List of Samples Required for Test 82
Appendix B (Normative) Routine test of electrical accessories for factory wiring (protection against electric shock and correct polarity) 84
Appendix C (Normative) Standard Sheets and Gauges 86
Appendix D (informative) Selective clamping test 92
Fig. 1 Legend of electrical accessories 52
Figure 2 Post terminal 53
Figure 3 Screw and bolt terminals 54
Figure 4 Saddle terminal 55
Figure 5 Cover terminal 56
Figure 6 Self-tapping locking screws 56
Figure 7 Self-cutting screws 57
Figure 8 Compression test device (see 24.5) 57
Figure 9 Probes for checking the inaccessibility of live parts inside the protective door 58
Figure 10 Probes for checking the inaccessibility of live parts inside protective doors and live parts with reinforced protective sockets 59
Figure 11 Device for inspecting the degree of damage to a wire 60
Figure 12 Schematic diagram of the bending test 61
Figure 13 Appliances for checking lateral stress resistance 62
Fig. 14 Breaking capacity and normal operation test device 63
Figure 15 Circuit diagram for breaking capacity and normal operation test 64
Figure 16 Device for checking maximum extraction force 65
Figure 17 Device for testing retention of flexible cables 66
Fig. 18 Bending test device 67
Figure 19 Schematic diagram of impact application according to Table 20 68
Figure 20 24.4 Low-temperature impact test device 69
Fig. 21 Example of test arrangement for verifying the fixing of the pin on the plug body
Figure 22 Test device for cover or cover 71
Figure 23 Gauge for checking the outline of a cover or cover (approximately 2mm thick) 71
Fig. 24 Example of using the gauge of Fig. 23 on a cover fixed to a mounting surface or a bearing surface without screws
Figure 25 Example of using the gauge of Figure 23 as required by 24.17 73
Figure 26 Gauges for checking grooves, holes and reverse tapers 74
Figure 27 Schematic diagram of application direction of the gauge in Figure 26 74
Figure 28 Ball pressure test device 75
Figure 29 25.5 Compression test device for checking heat resistance 75
Figure 30 Test procedure for normal operation (see Chapter 21) 76
Fig. 31 Schematic diagram of clamping elements in Chapter 19 Temperature Rise Test 77
Figure 32 Inrush current profile used for Chapter 20 test 78
Figure 33.Additional information to Figure 32 --- Possible circuits for outputting the inrush current given in Figure 32
Figure 34 Circuit diagram for testing sockets and plugs according to 18.2 79
Figure 35 Possible combinations for temperature rise tests in Chapters 19 and 21 79
Figure 36 Plug thermal insulation test device 80
Figure 37 Pressure test device at high temperature 81
Fig. 38 Impact test device with bolt with insulation sleeve 81
Figure C.1 Standard Flyer 1. Socket for Class I Equipment
Figure C.2 Standard Sheet 2. Plug for Class I Equipment
Figure C.3 Standard Sheet 3. "" and "-" Pin or Sleeve Positions 88
Figure C.4 Gauge for checking the size of the insertion hole. C1 89
Figure C.5 Gauge for checking the size of the insertion hole. C2 89
Figure C.6 Gauge for checking contact point 1. C3 90
Figure C.7 Gauge for checking minimum withdrawal force (see 22.3) 90
Figure C.8 Gauge for checking maximum extraction force. C4max (see 22.2) 91
Figure D.1 Comparative plug for clamping test 93
Figure D.2 Example of test equipment for plug clamping test 94
Table 1 Relationship between rated power and nominal cross-sectional area of connectable copper wires 13
Table 2 Threaded terminal tensile test value 14
Table 3 Wire structure 14
Table 4 Tightening torque for checking the mechanical strength of screw terminals 15
Table 5 Relationship between rated power of screwless terminals and nominal cross-sectional area of connectable copper conductors 16
Table 6 Tensile test values of screwless terminals 18
Table 7 Bend value of copper wire under mechanical load test 18
Table 8 Test current to verify the electrical and thermal stress of screwless terminals in normal use 18
Table 9 Nominal cross-sectional area of hard copper wire for bending test of unthreaded terminals 20
Table 10 Bending test force value 20
Table 11 Forces applied to the insert 21
Table 12 Relationship between insert size and rated current 21
Table 13 Forces applied to covers, covers or operating parts that are not secured by screws 23
Table 14 Dimensional Limits of External Cables for Surface Mounted Sockets 24
Table 15 Test current for temperature rise test and nominal cross-sectional area of copper wire 32
Table 16 Maximum and minimum extraction force of plugs and sockets 36
Table 17 External dimensions of flexible cables that can be accommodated by flexible cable fixing parts 37
Table 18 Torque test values for flexible cable fixing parts 37
Table 19 Maximum size of flexible cables that can be accommodated in removable electrical accessories 38
Table 20 Drop height of impact test 39
Table 21 Torque test value of gland 41
Table 22 Heat resistance of different types and components of electrical accessories 44
Table 23 Creepage distance, clearance and distance through insulation sealant 46
Table 24 Pull-out force of the locking mechanism 51
Table A.1 Number of samples required for 5.5 test 82
Table B.1 Graphical illustrations of routine tests to be carried out on mobile electrical accessories with wires according to delivery status
Foreword
GB/T 38428 "DC plugs and sockets for information and communication technology (ICT) equipment installed in data center and telecommunication center computer rooms"
The following sections.
--- Part 1. General requirements.
This part is the first part of GB/T 38428.
This section is drafted in accordance with the rules given in GB/T 1.1-2009.
This section uses the redrafting method to modify the information and installation of IEC TS62735-1..2015
DC plug and socket for communication technology (ICT) equipment. Part 1. Plug and socket system for 2.6kW.
Compared with IEC TS62735-1..2015, this section has structural changes.
--- Increase 7.1.3, 13.29, 14.16;
--- Added Chapter 30 and Chapter 31;
--- According to the order of reference in the appendix, the original appendix A is modified to appendix B, the original appendix B is modified to appendix A, and the original appendix C is modified to appendix
D, the original appendix D is revised to appendix C.
The technical differences between this part and IEC TS62735-1..2015 and their causes are as follows.
--- According to the actual application of China's products, in Chapter 1, the rated power and rated voltage are changed from "rated power not exceeding 2.6kW,
Constant voltage range from 294V to 400V DC "was revised to" rated power not exceeding 4.0kW, rated voltage range from DC
240V to 400V ".
--- In Chapter 1, the maximum current of the plug and socket was deleted.
--- In Chapter 1, the overcurrent protection was changed from not exceeding 8.8A to not exceeding 16A based on the maximum current of each socket.
--- Regarding the normative references, this section has made adjustments with technical differences to adapt to China's technical conditions and the situation of adjustment.
The situation is reflected in Chapter 2 "Regulatory Reference Documents", and the specific adjustments are as follows.
● Replaced IEC 60529 with GB/T 4208-2017 equivalent to the international standard;
● Replaced IEC 60245 (all parts) with GB/T 5013 (all parts) equivalent to international standards;
● Replaced IEC 60227 (all parts) with GB/T 5023 (all parts) equivalent to international standards;
● Replaced IEC 60695-2-11 with GB/T 5169.11-2017 equivalent to the international standard;
● Replaced IEC 61032 with GB/T 16842-2016 equivalent to the international standard;
● Replaced IEC 60423 with GB/T 17194-1997 equivalent to the international standard;
● Replaced IEC 60068-2-31 with GB/T 2423.7-2018 equivalent to the international standard;
● Replaced IEC 60352-2 with GB/T 18290.2-2015 equivalent to the international standard;
● Replaced IEC 61210 with GB/T 17196-2017 which adopted the international standard;
● Added GB 4943 (all parts), GB/T 2423.4-2008, GB/T 2099.1-2008, GB/T 5465.2-
2008, GB/T 2423.55-2006, GB/T 5169.10-2017;
● ISO 1456 has been removed.
--- In Chapter 6, "Rated Values", a rated power of 4.0kW has been added.
--- In Chapter 6, "Rated Values", modify the rated voltage from "any voltage between 294V and 400V" to "between 240V and
Any voltage between 400V ".
--- Increased 7.1.3 classification according to the number of cycles completed in the test of Chapter 20.
--- 8.1 Added warning label requirements.
--- Chapter 12 For the increased rated power of 4.0kW terminal, refer to 23/743/DTS file of IEC TS62735-2, increase
Corresponding test requirements.
--- According to the actual application of our products, 12.4 increased the insert with a nominal size of 6.4mm × 1.0mm and its corresponding
test.
--- In order to ensure the safe use of the product, 13.29 "Sockets and plugs should have corresponding locking and unlocking mechanisms."
--- In order to ensure the safe use of the product, 14.16 "Sockets and plugs should have corresponding locking and unlocking mechanisms" was added.
--- Chapter 20, Chapter 21, added the description of "if there is a locking mechanism, it should be disabled".
--- According to the actual application of our products, Chapter 21 adds the manufacturer's statement of 500 strokes of normal operation test.
--- Added Chapter 30 additional test of the bolt with insulation sheath.
--- Added Chapter 31 Test of Plugs and Sockets in Locked State.
The following editorial changes have been made in this section.
--- Amended the standard name to "DC plugs for information and communication technology (ICT) equipment installed in data center and telecommunication center computer rooms
Sockets Part 1. General requirements;
--- In Chapter 1, "Scope", the first paragraph supplemented "GB/T 38428 This section specifies the installation of data center and telecommunications center room
Technical requirements for the type size, structure, electrical performance, and mechanical performance of DC plugs and sockets for ICT equipment ";
--- Removed some notes from IEC TS62735-1..2015 that are applicable to other countries, such as Note to 7.2.2, Note to 8.5;
--- Removed the AWG US specifications of the wires in the standard, such as Table 1, Table 2, Table 3.
This section is proposed by China Electrical Equipment Industry Association.
This section is under the jurisdiction of the National Electrical Equipment Standardization Technical Committee (SAC/TC67).
Drafting organizations of this section. China National Electric Research Institute Co., Ltd., Hangzhou Hongyan Electric Co., Ltd., Sichuan Huafeng Enterprise Group
Co., Ltd., Schneider Electric (China) Co., Ltd. Shenzhen Branch, Ningbo Weir Electric Co., Ltd., Nanjing Putian Tianji Building Intelligent
Co., Ltd., Huawei Technologies Co., Ltd., Yuehua Holding Group Co., Ltd., Weikai Testing Technology Co., Ltd.
The main drafters of this section. Cai Jun, Yao Zhiguo, Hu Sheng, Gong Zhilei, Li Hongwen, Zhao Chengfeng, Zhang Guoqing, Wang Chaosheng, Gao Yipan, Li Xiqin,
Wang Fengqin and Song Min.
Data center and telecommunications center room installation information and
DC plug and socket for communication technology (ICT) equipment
Part 1. General requirements
1 Scope
This part of GB/T 38428 specifies DC for information and communication technology (ICT) equipment installed in data center and telecommunication center computer rooms.
Technical requirements such as type size, structure, electrical performance, and mechanical performance of plug and socket.
This section applies to Class I equipment with two live contacts and ground contacts, rated power not exceeding 4.0kW, rated voltage range
Plugs and fixed sockets from DC 240V to 400V. They are used only for DC-compliant information and communication technologies in accordance with GB 4943.
Technology equipment and products.
According to this section, ordinary personnel in a data center may use electrical accessories only when the DC voltage distribution system meets the following requirements.
--- (380 ± 20) V equipment, without backup battery and voltage regulation system.
--- 380V equipment with a voltage range of 240V to 400V, with a backup battery (the voltage adjustment cannot be guaranteed).
--- During normal operation, the voltage between each live wire and ground does not exceed.200Vd.c.
--- Has 2 abnormal voltage ranges (duration is less than 10min).
● 260V ~ 294V;
● > 400V ~ 410V.
According to this section, no maintenance is required for accessories.
Plugs and sockets within the scope of this section apply to circuits that have been protected by.
--- basic protection;
--- Overcurrent protection (based on the maximum current of each socket not exceeding 16A);
--- fault protection (indirect contact protection); and
--- Extra protection.
This section does not include the requirements for concealed installation boxes, only the requirements for surface-mounted installation boxes required for testing sockets.
Note 1. The general requirements for mounting boxes are given by GB/T 17466.
This section also applies to.
--- Plug in the wire assembly;
--- Plugs and sockets in wall sockets for data center extension cords;
--- Extension cord sockets and multi-position sockets for data centers that are fixed on the wall or rack;
--- As a component of the component socket, unless otherwise stated in the relevant component standards.
This section does not apply to.
--- One or more mobile sockets;
--- Industrial plug sockets and couplers;
--- Household plugs and sockets;
--- Appliance coupler;
--- ELV plug and fixed or mobile socket;
Note 2. The ELV value is specified in GB/T 16895.21.
--- Fixed socket combined with fuse body, automatic switch, etc.
If the indicator light on the socket meets the relevant standards, then this section applies to the socket with indicator light.
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