GB/T 47637.1-2026Direct current (DC) appliance couplers for information and communication technology (ICT) equipment installed in data centres and telecom central offices - Part 1: 2.6 kW system (English PDF)

1 Scope 1

2 Normative References 1

3 Terms and Definitions

4 General Requirements 6

6 Standard Ratings 8

7.Classification of appliance couplers 8.

8 Symbols

9 Size and Interchangeability

10.Protection against electric shock.

11 Grounding measures 11

12 Terminals and connectors 11

13 Structure 11

14 Insulation resistance and electrical strength 14

15.Force required to insert and remove the connector.

16 Operation of the contacts 16

17 Heat resistance of the device coupler

18 breaking capacity 17

19 Normal operation 18

20 Temperature rise 19

21.Flexible wires and their connections 20.

22 Mechanical strength 23

23 Heat resistance and anti-aging properties 25

24 Screws, current-carrying components and their connections 26

26.Heat resistance, flame retardancy, and tracking resistance of insulating materials 29.

27 Rust prevention 30

28 Electromagnetic compatibility (EMC) requirements 31

Appendix A (Normative) Routine Tests for Electrical Accessories with Factory Wiring (Protection Against Electric Shock and Correct Polarity) 32

Appendix B (Normative) Test Arrangement 34

Appendix C (Informative) Selective Clamping Test 36

Appendix D (Normative) Standard Loose-leaf and Gauges 39

References 49

Figure 1.Intended application of the appliance coupler 3

Figure 2 Test apparatus for maximum pull-out force 16

Figure 3 Breaking capacity and normal operation test circuit diagram 18

Figure 4.Test apparatus for flexible cable fixing components 21

Figure 5 Bending test apparatus 22

Figure 6 Example 24 of tensile testing equipment

Figure C.1 Comparison connector 37 for clamping test

Figure C.2 Example of test equipment for connector clamping test 38

Figure D.1 Appliance Input Socket 40

Figure D.2 Connector 41

Figure D.3 Position of " " and "-" pins/sleeves 42

Figure D.5 is a gauge (Figure D.1) used to inspect the input sockets of appliances conforming to standard loop 1.44

Figure D.6 is a GO gauge (Figure D.2) used to inspect standard hinge 2 connectors. 45

Figure D.7 Gauge 46 for checking the maximum pull-out force of the corresponding appliance input socket

Figure D.8 Gauge 47 for checking the minimum pull-out force of the connector's "+" and "-" sockets.

Figure D.9 Gauge 47 for checking the minimum pull-out force of the connector PE socket.

Figure D.10 Optional micro switch driver positioning area 48

Figure D.11 Minimum size of the switch cam. 48

Table 1.Relationship between rated power and nominal cross-sectional area of connectable copper wires.

Table 2 Maximum diameter of flexible wire 15

Table 3 Maximum and minimum pull-out force 15

Table 4.Experimental Flexible Cords and Conductors (Chapter 20) 19

Table 5.Types and nominal cross-sectional areas of flexible wires (20 ohms)

Table 6.Type 21 of flexible cable used for testing detachable connectors.

Table 7.Tension values applied in the transverse tensile test 24

Table 8 Test values of tensile force 25

Table 9.Torque applied during tightening and loosening tests 27

Table 10 Creepage Distance, Clearance, and Distance Through Insulating Sealant 28

Table B.1 Experimental Arrangement 34

Table D.1 Dimensions of contact gauges and non-contact gauges 43

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document is based on GB/T 47637 "DC Appliance Coupling for Information and Communication Technology (ICT) Equipment Installed in Data Centers and Telecommunication Centers".

Part 1 of GB/T 47637, titled "Compatible Instruments". The following parts have been published.

---Part 1.2.6kW System;

---Part 2.5.2kW System;

---Part 3: AC/DC appliance input sockets.

This document is equivalent to IEC TS63236-1:2021 "Information and Communication Technology (ICT) Equipment Installed in Data Centers and Telecommunication Center Rooms".

"Standard Equipment Coupler Part 1.2.6kW System". The document type has been changed from an IEC technical specification to a Chinese national standard.

The following minimal editorial changes have been made to this document.

---AWG (American wire gauge) mentioned in Tables 1, 4, 5, 6, and 24.1 has been deleted to adapt to my country's technical conditions and increase operability.

Actual nature;

---Table 8 mentioned in Chapters 20, 21.2.3, and 22.2 has been changed to Table 9, correcting errors in the original text;

---Table 7 mentioned in 21.3 has been changed to Table 6, correcting the error in the original text.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of Electrical Accessories (SAC/TC67).

Introduction

GB/T 47637 "DC Appliance Couplers for Information and Communication Technology (ICT) Equipment Installed in Data Centers and Telecommunication Centers" aims to the requirements for DC appliance couplers used in information and communication technology (ICT) equipment installed in data centers and telecommunications central computer rooms are standardized to ensure product quality.

The product is safe and reliable, and is proposed to consist of the following parts.

---Part 1.2.6kW System. The purpose is to standardize the installation of information and communication technologies in data centers and telecommunications central office rooms.

Technical specifications regarding the type, dimensions, structure, electrical performance, and mechanical performance of DC appliance couplers for 2.6kW systems used in (ICT) equipment.

Technical requirements.

---Part 2.5.2kW System. The purpose is to standardize the installation of information and communication technologies in data centers and telecommunications central office rooms.

Technical specifications for DC appliance couplers used in 5.2kW systems for (ICT) equipment, including type, dimensions, structure, electrical performance, and mechanical performance.

Technical requirements.

---Part 3: AC/DC Appliance Input Sockets. The purpose is to standardize the installation of information and communication equipment in data centers and telecommunications central office rooms.

Additional requirements for AC/DC appliance input sockets for ICT equipment.

This document will help standardize the installation of 2.6kW information and communication technology (ICT) equipment in data centers and telecommunications center rooms.

The requirements for DC-DC equipment couplers are driving the deployment of information and communication technology (ICT) DC equipment in data centers and telecommunications central office rooms.

Information on the installation of data centers and telecommunications center computer rooms DC appliance couplers for communication technology (ICT) equipment Part 1.2.6kW System

1 Scope

This document specifies the DC power requirements for 2.6kW systems used in information and communication technology (ICT) equipment installed in data centers and telecommunications center rooms.

Technical requirements for the type, size, structure, electrical performance, and mechanical performance of the device coupler.

This document applies to Class I equipment with two live contacts and one ground contact, a rated power of 2.6kW, and a rated voltage range of [missing information].

DC appliance couplers from 294V to 400V. These are for DC applications only and comply with IEC 62368-1 for information and communication technologies.

Equipment and products.

According to this document, electrical accessories may be used by general personnel in the data center only if the DC voltage power distribution system meets the following requirements.

- 260V~294V;

- Greater than 400V~410V.

The maximum current of the device coupler is.

---When the voltage between the live contacts is 400VDC, the current is 6.5A;

---When the voltage between the live contacts is 294VDC, the A is 8.8A.

When the voltage between the live contacts drops to 260VDC, it can be raised to 10ADC and last for up to 10 minutes.

When the battery discharge voltage reaches the disconnection level, the voltage between the charged conductors drops to 260VDC. As a result, the current decreases accordingly.

Increase.

According to this document, no maintenance is required for the attachments.

---Basic protection;

---Overcurrent protection (8.8A or less per outlet or multiple outlets);

---Fault protection (indirect contact protection);

---Additional protection.

The appliance couplers conforming to this document are suitable for use in ambient temperatures generally not exceeding 60°C, with a minimum ambient temperature of -5°C.

Appliance couplers are not suitable as replacements for plug and socket systems conforming to the IEC TS62735 series standards.

The appliance couplers covered in this document are not applicable to the National Technical Committee on Standardization of Electrical Accessories (SAC/TC67) and the National Low Voltage Engineering Committee.

The mobile electrical circuit breakers and similar devices covered by the Electrical Equipment Standardization Technical Committee (SAC/TC189) (corresponding to IEC/SC23E) Electrical accessories.

2 Normative references the contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

ISO 1456 Metals and other inorganic coatings – Nickel, nickel-chromium, copper-nickel and copper-nickel-chromium electroplatings