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GB/T 18802.21-2016: Low-voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signaling networks -- Performance requirements and testing methods
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Basic data | Standard ID | GB/T 18802.21-2016 (GB/T18802.21-2016) | | Description (Translated English) | Low-voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signaling networks -- Performance requirements and testing methods | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K30 | | Classification of International Standard | 29.240.10 | | Word Count Estimation | 57,542 | | Date of Issue | 2016-02-24 | | Date of Implementation | 2016-09-01 | | Older Standard (superseded by this standard) | GB/T 18802.21-2004 | | Quoted Standard | GB/T 5169.11-2006; GB/T 14733.2-2008; GB/T 14733.7-2008; GB/T 18802.22-2008; IEC 60060-1-1989; IEC 60068-2-30-1980; IEC 60529; IEC 60950-1-1999; IEC 60999-1; IEC 61000-4-5; IEC 61083-1; IEC 61180-1-1992; IEC61643-1; IEC 61643-11-2011; ITU-T K.44-2011; ITU-T K.55; ITU-T K | | Adopted Standard | IEC 61643-21-2012, IDT | | Regulation (derived from) | National Standard Announcement No | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard applies to surge protectors (hereinafter referred to as SPD-Surge protective devices) that protect telecommunications and signaling networks that are directly or indirectly affected by lightning or other transient overvoltages. These SPDs function to protect the system from being connected to the system nominal Voltage up to AC 1000V (RMS), DC 1 500 V of the telecommunications network and signal network protection of modern electronic devices. | GB/T 18802.21-2016: Low-voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signaling networks -- Performance requirements and testing methods
---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.
Low-voltage surge devices.Part 21. Surge protective devices connected to telecommunications and signaling networks.Performance requirements and testing methods
ICS 29.240.10
K30
National Standards of People's Republic of China
Replace GB/T 18802.21-2004
Low-voltage surge protector - Part 21.
Telecommunication and Signal Network Surge Protectors (SPD)
Performance requirements and test methods
Low-voltagesurgeprotectivedevices-Part 21. Surgeprotectivedevices
(IEC 61643-21..2012, IDT)
2016-02-24 release.2016-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Directory
Preface Ⅴ
Introduction Ⅶ
1 General 1
1.1 Scope 1
1.2 Structure of SPD 1
1.3 Use of this part 2
2 normative reference document 4
3 Terms and definitions 5
4 conditions of use and test conditions 9
4.1 Conditions of Use 9
4.2 Test temperature and test humidity 9
4.3 SPD test 9
4.4 Waveform Tolerance 10
5 requires 10
5.1 General requirements 10
5.2 Electrical characteristics 11
5.3 Mechanical characteristics requirements 16
5.4 Environmental requirements 17
Type Test
6.1 General inspection 18
6.2 Electrical Characteristics Test 18
6.3 Mechanical characteristics test 25
6.4 Environmental tests 27
Acceptance test
Appendix A (informative) Protective device 41 with only current limiting element
Appendix B vacant 42
Appendix C vacant 43
Appendix D (informative) Measurement accuracy 44
Appendix E (informative) Determination of allowable current Ip 45
Appendix F (informative) The basic circuit for measuring Up 47
Appendix G (informative) Special resistance to telecommunications systems 48
Reference 49
Figure 1 Schematic diagram of SPD
Figure 2 Test circuit for impact reset time
Figure 3 Test circuit for AC tolerance test and overload fault mode
Figure 4 Test circuit for impulse withstand test and overload fault mode
Figure 5 Test circuit for checking the rated current, series resistance, response time, current recovery time, maximum interrupt voltage and operating load 32
Figure 6 AC tolerance test circuit 33
Figure 7 Impact tolerance test circuit 34
Fig. 8 Insertion loss test circuit 35
Fig. 9 Return loss test circuit 35
Figure 10 Longitudinal balance test circuit 36
Fig. 11 is a test circuit for checking the bit error rate
Figure 12 Near-end crosstalk test circuit 37
Figure 13 High temperature/high humidity tolerance test and environmental cycle test circuit 38
Figure 14 Environmental cycle test scheme A, RH ≥ 90% 38
Figure 15 Environmental cycle test plan B 39
Figure 16 Example 40 of multi-terminal SPD with common current path
Figure A.1 Structure of protection devices with current limiting elements only
Figure E.1 Determination of differential mode allowable current
Figure E.2 Determination of common mode allowable current
Figure E.3 Determination of differential mode allowable current
Figure E.4 Determination of differential mode allowable current
Figure E.5 Common mode maximum allowable current measurement
Figure E.6 Multi-terminal SPD common mode maximum allowable current measurement 46
Figure F.1 The differential mode Upscrew of SPD in Figure 1
Figure F.2 ITU-T test setup for SPD common mode Up measurement of C terminal 47
Table 1 General requirements for SPD 2
Table 2 Waveform parameters allow error 10
Table 3 Voltage and current waveforms for impact limiting voltage and impact tolerance test
Table 4 Power supply voltage and current for impact reset test 12
Table 5 AC Tolerance Test Current Preferred Value 13
Table 6 Test current for measuring response time 14
Table 7 Optimal value of the operating load test current 14
Table 8 Preferred values for AC test current 15
Table 9 Preferred values for inrush current 15
Table 10 Standard parameters of Figure 8 23
Table 11 Impedance values for longitudinal equilibrium tests
Table 12 Test time for BER test 25
Table 13 Cross-sectional area of copper wire connection (for screw type terminals and without screw type terminals) 25
Table 14 Tension of Screwless Terminals
Table 15 Preferred values for testing the duration of the test for high temperature and high humidity test 28
Table 16 Preferred values of temperature and duration in environmental cycle test
Foreword
GB/T 18802 "Low-voltage surge protector (SPD)" is divided into the following sections.
--- GB 18802.1 Low-voltage surge protector (SPD) - Part 1. Surge protectors for low-voltage distribution systems Performance requirements and
experiment method
Low voltage surge protector (SPD) - Part 12. Surge protection for low voltage distribution systems - Selection and
Use guidelines
GB/T 18802.21 Low-voltage surge protectors - Part 21. Surge protectors (SPD) performance for telecommunication and signal networks
Requirements and test methods
GB/T 18802.22 Low-voltage surge protector - Part 22. Surge protection (SPD) selection for telecommunications and signaling networks
And the use of guidelines
GB/T 18802.31 Low-voltage surge protector. Surge protector for special applications (including DC) - Part 31.
System Surge Protector (SPD) performance requirements and test methods
GB/T 18802.311 Low-voltage surge protector components - Part 311. Gas discharge tube (GDT) specification
Low Voltage Surge Protective Devices - Part 321. Avalanche Breakdown Diode (ABD) specification GB/T 18802.321
GB/T 18802.331 Low-voltage surge protector components - Part 331. Specification for metal oxide varistor (MOV)
GB/T 18802.341 Low-voltage surge protector components - Part 341. Surge suppression thyristors (TSS) specification
This part is part 21 of GB/T 18802.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part of the replacement GB/T 18802.21-2004 "Low-voltage surge protector Part 21. Telecommunications and signal network surge protector
(SPD) performance requirements and test methods ".
This part replaces GB 18802.12-2004.
This part compared with GB 18802.12-2004, the main technical changes are as follows.
- "IEC 61643-22" is modified to "GB/T 18802.22" when the "protection device" is modified as "protective element"
--- unified "full" in the "surge" modified to "surge", the "limit pressure" to "voltage limit", the "current limit" to "current limit
system";
--- The requirements for SPD in Table 1 are refined to four test series and their corresponding subclauses, and the "yes/no" requirement is modified to "
Use/not applicable/optional "and note the precautions of part of the test by note;
- Chapter 2 "Normative references" are modified as follows, where some of the changes in the reference to national standards are due to their corresponding IEC
Standard non-equivalent use.
• Change GB/T 5169.11-1997, GB/T 14733.2-1993 and GB/T 14733.7-1993 to
GB/T 5169.11-2006, GB/T 14733.2-2008, GB/T 14733.7-2008;
● Deleted GB/T 2423.4-1993, GB 4208-1993, GB 4943-2011, GB/T 16896.1-1997,
GB/T 16927.1-1997, GB/T 17626.5-1999, GB/T 17627.1-1998, GB 18802.1-2002;
● Added by GB/T 18802.22-2008, IEC 60060-1. 1989, IEC 60068-2-30. 1980, IEC 60529,
IEC 60950-1..1999, IEC 60999-1, IEC 61000-4-5, IEC 61083-1, IEC 61180-1..1992,
IEC 61643-1, IEC 61643-11..2011, ITU-TK.44..2011, ITU-TK.55, ITU-TK.82, ITU-T
0.9..1999;
- The terms and definitions listed in Chapter 3 are amended as follows.
● "maximum interrupt voltage" "surge protector" "limit voltage" "current limit" "can not be self-healing current limit" "self-recovery current limit"
"Self-healing current limit" "limit pressure type SPD" "voltage switch type SPD" "impact tolerance" definition;
● Increased "total discharge current" "Surge (telecommunications)" "Nominal discharge current" "Rated surge current" "Impulse discharge current"
definition;
--- Chapter 4 Modifies the "Temperature and Humidity" range in "4.1 Conditions of Use", adding "4.1.2 Special Conditions of Use", modify
"4.2 test temperature and test humidity", modify the "4.3SPD test" part of the content;
- Chapter 5 adds the contents of "5.1.1 Identification and Documentation", improves the requirements of "5.1.2 Mark", and changes the "5.2.1.1"
Large operating voltage "requirements, the" 5.3.4 to prevent electric shock "modified to" anti-direct contact ", the" 5.3.5 fire "modified to" resistance
Burning "," 5.4.1 high temperature and high humidity capacity "modified to" high temperature and high humidity tolerance ";
--- Chapter 6 is amended as follows.
• In the "6.1 mark" test, n-hexane with a concentration of not less than 85% is added as a reagent;
● In the "6.2.1 pressure limit test", the test voltage tolerance, ripple, frequency of the index requirements, the provisions of the common mode test
Mandatory and differential mode test options. Modified "6.2.1.2 Insulation resistance" "6.2.1.3 Shock limit voltage" "6.2.1.4
Impact reset time "" 6.2.1.5 AC tolerance test "" 6.2.1.7 Overload fault mode "test content.
"6.2.1.6.1 Additional test of multi-terminal SPD". Modify the contents of Table 3;
● In "6.2.2 current limiting test", the measurement requirements under DC and AC/DC are increased;
● In the "6.2.3 Transmission Characteristics Test", the contents of the "longitudinal balance test" and "bit error rate (BER)" are modified.
● In the "6.3 Mechanical Characteristics Test", modify "6.3.4 to prevent electric shock" and "6.3.5 fire test" respectively.
Contact "and" 6.3.5 flame retardant test ";
● In the "6.4 Environmental Test", "6.4.1 Test of high temperature and high humidity" is changed to "High temperature and high humidity resistance test" and
The tolerance range of the test temperature and humidity is specified;
--- "6.5 acceptance test" modified to Chapter 7;
--- Figure 16 "Example of multi-terminal SPD with common current path"
- The contents of Appendix B were deleted and appendices B (vacancies), appendix C (vacancies), appendix D, appendix E, appendix F and appendix G. were added.
This part is equivalent to IEC 61643-21..2012 "Low-voltage surge protector Part 21. Surge protection for telecommunications and signaling networks
(SPD) performance requirements and test methods ".
In this part of the normative reference to the international documents have a consistent correspondence between the following documents.
GB/T 17627.1-1998 High pressure test technology for low voltage electrical appliances - Part 1. Definitions, tests and procedures requirements
(IEC 61180-1-1992, MOD).
This part is made by China Electrical Equipment Industry Association.
This part is headed by the National Standardization Technical Committee for Arresters (SAC/TC81).
This part of the main drafting unit. Shanghai Lightning Protection Center, Xi'an High Voltage Electric Research Institute Co., Ltd., Shanghai Electric Research Institute.
This part participates in the drafting unit. Guiyang Gao Xinyi Ge Electronics Co., Ltd., Shanghai Lei Xun Lightning Protection Technology Co., Ltd., Rhine test certification service
(China) Co., Ltd., Phoenix Asia Pacific Electric (Nanjing) Co., Ltd., Sichuan Zhongguang Lightning Technology Co., Ltd., Emerson Network
Energy Co., Ltd., Shenzhen Shield Lightning Protection Technology Co., Ltd., Huawei Technologies Co., Ltd., Beijing ABB Low Voltage Electric Co., Ltd., Shenzhen
(Shanghai) Co., Ltd., Schneider Electric (China) Co., Ltd. Shanghai Branch,
Delixi Electric Co., Ltd., Xi'an God Electric Co., Ltd., Shanghai Union Power Industry Co., Ltd., Germany and Sheng Electric (Shanghai) Co., Ltd., North
Beijing breakthrough Electric Co., Ltd.
This part of the main drafters. Zhou Qibin, Cheng Wenyi, Yan Cangwei, Fei pride, Zhang Jinyang, Huang Yong, Zhao Yang, Zhao Xinhua, Xu Zhuqin, Lei Chengyong,
Meng Qi, Wang Xinxia, Guo Yaping, Dai Chuanyou, Liu Liping, He Hengwen, Tao Jun, Liu Zhenliang, Ni Xiangyu, Wang Jiongqi, Wu Yunling, Yang Jianfeng.
This part of the previous version of the standard to replace the release of the situation.
--- GB/T 18802.21-2004.
Introduction
This section is intended to identify surge protectors for the protection of telecommunications and signaling systems such as low-voltage data circuits, audio circuits and alarm circuits
(SPD) requirements. The telecommunications and signaling systems may be affected by lightning and power line failures, either directly or through induction, causing the system
Withstand overvoltages or overcurrents that are sufficient to cause damage or both. Surge protector (SPD) is to prevent the system from being protected by lightning
Electricity and power lines fault generated by the over-voltage and over-current role of a protective device. This section describes the pilot items and requirements
These tests and requirements establish a method for testing SPDs and determining their performance.
The SPD in this section includes only the components of the overvoltage protection function and the overvoltage overcurrent protection element. Only overcurrent
The SPD of the protective element is not the content of this standard, but Appendix A contains the SPD containing only the current limiting protection element.
An SPD can consist of several overvoltage and overcurrent protection elements, but all SPD tests are based on a "black box"
Determine the test procedure with the number of terminals of the SPD, rather than the number of protected components within the SPD. The SPD is given in 1.2
The structure of the diagram. For multiple SPDs, each road can be tested separately, or at the same time, all lines can be
test.
The test conditions and test requirements of this section are wide and are determined by the user at the time of use. But 1.3 is given in this section
Requirements for all types of SPDs. This part is a performance standard, only SPD capacity requirements, the failure rate and its interpretation by the user
consider. The selection principle for SPD will be included in GB/T 18802.22.
If the SPD is a single component device, it shall meet the relevant standards and the requirements of this part.
Low-voltage surge protector - Part 21.
Telecommunication and Signal Network Surge Protectors (SPD)
Performance requirements and test methods
1 General
1.1 Scope
This section applies to surge protection against telecommunications and signaling networks that are directly or indirectly affected by lightning or other transient overvoltages.
(Hereinafter referred to as SPD --- Surgeprotectivedevice).
The role of these SPD is to connect to the system nominal voltage up to AC 1000V (RMS), DC 1500V telecommunications network
Network and signal network of modern electronic equipment protection.
1.2 Structure of SPD
The structure of SPD described in this section is shown in Fig. Each SPD consists of one or more voltage limiting elements and may contain electrical power
Flow limiting element.
a) Two terminals SPD b) Three terminals SPD c) Three terminals SPD
d) Four terminal SPD e) Five terminal SPD f) Multi terminal SPD
Description.
V - voltage limiting element;
V, I - a combination of a voltage limiting element or a voltage limiting element and a current limiting element;
X1, X2Xn --- line terminal;
Y1, Y2Yn --- protected line terminal;
C --- common terminal.
a may not provide a common terminal C.
Figure 1 SPD structure diagram
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