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GB/T 18802.311-2017: Components for low-voltage surge protective devices -- Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)
Status: Valid GB/T 18802.311: Evolution and historical versions
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Components for low-voltage surge protective devices -- Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)
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GB/T 18802.311-2017
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| GB/T 18802.311-2007 | English | 759 |
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Components for low-voltage surge protective -- Part 311: Specification for gas discharge tubes (GDT)
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GB/T 18802.311-2007
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PDF similar to GB/T 18802.311-2017
Basic data | Standard ID | GB/T 18802.311-2017 (GB/T18802.311-2017) | | Description (Translated English) | Components for low-voltage surge protective devices -- Part 311: Performance requirements and test circuits for gas discharge tubes (GDT) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K30 | | Classification of International Standard | 29.240.10 | | Word Count Estimation | 25,288 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Older Standard (superseded by this standard) | GB/T 18802.311-2007 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Issuing agency(ies) | General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 | GB/T 18802.311-2017: Components for low-voltage surge protective devices -- Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)
---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.
Components for low-voltage surge protective devices-Part 311. Performance requirements and test circuits for gas discharge tubes (GDT)
ICS 29.240.10
K30
National Standards of People's Republic of China
Replacing GB/T 18802.311-2007
Low-voltage surge protector components
Part 311. Gas discharge tube (GDT)
Performance requirements and test loops
Part 311.Performancerequirementsandtestcircuitsforgasdischargetubes (GDT)
(IEC 61643-311.2013, IDT)
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms, definitions and symbols 1
3.1 Terms and definitions 1
3.2 symbol 4
4 operating conditions 5
4.1 low temperature 5
4.2 Atmospheric pressure and altitude 5
4.3 Ambient temperature 5
4.4 Relative Humidity 5
5 mechanical requirements and materials 5
5.1 terminal firmness 5
5.2 weldability 5
5.3 Radioactivity 5
5.4 logo 5
6 General requirements 6
6.1 Non-performing rate
6.2 Standard atmospheric conditions 6
7 Electrical performance requirements 6
7.1 Overview 6
7.2 Initial value 6
7.2.1 discharge voltage 6
7.2.2 Insulation resistance 7
7.2.3 Capacitance 7
7.2.4 Transverse voltage 8
7.2.5 DC Hold Status 8
7.3 Requirements after load test 8
7.3.1 Overview 8
7.3.2 discharge voltage 8
7.3.3 Insulation resistance 9
7.3.4 Frequency freewheeling 9
7.3.5 Fault short circuit (fail safe) 9
8 test methods and circuits 9
8.1 DC discharge voltage 9
8.2 Impact discharge voltage 10
8.3 Insulation resistance 10
8.4 Capacitance 10
8.5 glow to arc transition current, glow voltage, arc voltage 11
8.6 Transverse voltage 12
8.7 DC hold voltage 12
8.7.1 Overview 12
8.7.2 DC holding voltage value 14
8.8 Throughflow capacity 14
8.8.1 Overview 14
8.8.2 Nominal AC discharge current 15
8.8.3 8/20 Nominal Impact Discharge Current 16
8.8.4 10/1000μs impact discharge current life test 17
8.8.5 frequency freewheeling 18
8.9 Fault short circuit (fail safe) 19
References 20
Figure 1 GDT volt-ampere characteristics 3
Figure 2 2-pole GDT symbol 5
Figure 3 Three-pole GDT symbol 5
Figure 4 100V/s DC discharge voltage test circuit 10
Figure 5 1000V/μs pulse discharge voltage test circuit 10
Figure 6 glow arc transition current, glow voltage arc voltage test circuit 11
Figure 7 Typical Volt-ampere Characteristics of GDT Suitable for Measuring Glow to Arc Transition Currents, Glow and Arc Voltages 11
Figure 8 Transverse Voltage Test Circuit 12
Figure 9 Two-pole GDT for DC hold voltage test circuit 13
Figure 10 Three-pole GDT for DC hold voltage test circuit 13
Figure 11 Two GDT Nominal AC Discharge Current Test Circuit 15
Figure 12 Three-pole GDT nominal AC discharge current test circuit 16
Figure 13 Two GDT nominal surge current test circuit
Figure 14 Three-pole GDT Nominal Impact Discharge Current Test Circuit 17
Figure 15 Circuit of GDT surge current life test
Figure 16 three-pole GDT impact current life test circuit 18
Figure 17 Frequencies freewheeling test circuit 18
Figure 18 Diode GDT Test Circuit with Fault Short Circuit 19
Figure 19 Three-pole GDT test circuit with fault short-circuit mechanism
Table 1 DC and the impact of the initial discharge voltage requirements 6
Table 2 according to Table 5 after the test discharge voltage value 8
Table 3 2-pole GDT DC voltage test circuit components parameters 14
Table 4 three-pole GDT DC voltage test circuit components parameters 14
Table 5 different levels of GDT flow capacity list 14
Foreword
GB/T 18802 "low voltage surge protector components" is divided into the following sections.
--- Part 311. Performance requirements and test circuits for gas discharge tubes (GDTs);
--- Part 312. Guidance on the selection and use of gas discharge tubes (GDTs);
--- Part 321 avalanche breakdown diode (ABD) specification;
--- Part 331. Metal Oxide Varistor (MOV) specification;
--- Part 341. Surge suppression thyristor (TSS) specification.
This section GB/T 18802 Part 311.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 18802.311-2007 "Low-voltage Surge Protector Components Part 311. Gas Discharge Tube (GDT) Regulation
Fan. " Compared with GB/T 18802.311-2007, the main technical changes are as follows.
--- Expand the scope of GDT, which not only applies to communications and signaling systems, but also for low-voltage distribution network;
--- Combined "dc discharge voltage (dcsparkovervoltage) and DC breakdown voltage (dcbreakdownvoltage) two
the term;
--- Increase the "arc voltage" "fault short circuit" "freewheeling" and other terms, an increase of "GDT volt-ampere characteristics curve" and its description, delete
In addition to the term "transition time" and its definition;
--- "4 operating conditions" increase the atmospheric pressure and altitude and relative humidity parameters, added with and without
Short circuit GDT work and storage temperature range;
--- Clear GDT can not contain radioactive material requirements;
--- Modify the requirements of the GDT mark, added the manufacturing date and safety certification mark and other requirements;
--- Revised "Table 1 DC and surge discharge voltage of the initial demand value", DC spark discharge voltage preferred value from the previous version of
70V ~ 1800V modified to 75V ~ 4500V, 100V/s ~ 2kV/s the impact of spark discharge voltage minimum and maximum
Large value by 56V ~ 1440V and 84V ~ 2160V revised to 57V ~ 3600V and 93V ~ 5400V,
The impact spark discharge voltage range of 1 kV/μs is modified from < 750 V ~ < 3600 V to < 650 V ~ < 6000 V, and
Remove the content of the upper limit of the DC spark discharge voltage negotiated by both parties;
--- Insulation resistance of the initial value of 100MΩ increased to 1GΩ;
--- revised load test discharge voltage parameter table;
--- Added a load test on the frequency of freewheeling and fault short-circuit mechanism of the technical requirements and test methods;
--- Revised GDT flow capacity requirements;
--- DC spark discharge voltage test and the impact of spark discharge voltage test, GDT placed in the dark time unified adjustment is not
Less than 15min, the previous version of the standard provisions of the former 24h, which is 15min;
--- Revised 8.7.2 DC holding voltage parameters in Table 3 and Table 4 Test 1 loop R3 parameter values from the previous version of
260Ω adjusted to the new version of.200Ω;
--- Adjust the chapter, map, table writing order and insert location.
This section uses the translation method identical with IEC 61643-311.2013 "Low-voltage surge protection components Part 311. Gas discharge tube
(GDT) performance requirements and test loop. "
This section made the following editorial changes.
--- In 7.2.3, an increase of Note;
--- Increase in the note of 7.3.3 (including our country).
This part is proposed by China Electrical Equipment Industry Association.
This part of the National Arrester Standardization Technical Committee (SAC/TC81) centralized.
This section is drafted unit. Dongguan City, the new platinum rhenium Electronics Co., Ltd., Xi'an Institute of High Voltage Electric Co., Ltd., Shanghai Lightning in the
Heart, Changzhou City, a lightning anti-Jie Electronics Co., Ltd., Changzhou Huayi Lightning Technology Co., Ltd., Shenzhen Iron Technology Co., Ltd., Shanghai Lei
Lightning Protection Technology Co., Ltd., Tianjin Lightning Protection Technology Co., Ltd., Xi'an Shendian Electric Co., Ltd., Sichuan Light in the technology shares
Co., Ltd., Xiamen Saier Te Electronics Co., Ltd., Phoenix Asia Pacific Electric (Nanjing) Co., Ltd., Guiyang high-tech Yi Electronics Co., Ltd.
The main drafters of this section.Ceng Xianchang, Cheng Wenyi, Zhou Qibin, Zhang Nanfa, Guo Yaping, He Hengwen, Zhang Jindong, Sun Weiwei, Jia Dongxu,
Lei Chengyong, Huang Yong, Zhang Xianggui, Xu Zhu Qin, proud pride.
This standard replaces the standards previously issued as.
--- GB/T 18802.311-2007
Low-voltage surge protector components
Part 311. Gas discharge tube (GDT)
Performance requirements and test loops
1 Scope
This section GB/T 18802 applies to the system nominal voltage does not exceed the exchange of 1000V or DC 1500V telecommunications, signal and low
Piezoelectric power distribution network used by the gas discharge tube. Gas discharge tubes (GDTs) are defined as sealed with two or three metal electrodes
Single gap or multiple gaps, internal mixed gas and pressure controllable, used to protect the equipment and/or personal harm from transient over-voltage. Headquarters
Sub-section contains a series of test criteria, test methods and test circuits for determining the performance parameters of two- or three-pole GDTs. This section is both
It is not a technical requirement for a complete surge protector nor is it a full technical requirement for the use of a gas discharge tube in an electronic device,
The exact fit of GDT's performance and surge protector tolerance is critical.
GB/T 18802 of this section.
--- Does not involve installation and its impact on the performance of gas discharge tube, given the performance is only applicable to test requirements installed GDT;
--- Does not involve mechanical dimensions;
--- Does not involve quality assurance requirements;
--- For the use of high-frequency (frequency > 30MHz) GDT may not be sufficient;
--- Does not involve static voltage;
--- Does not involve hybrid overvoltage protection components or combination of GDT.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2423.1-2008 Environmental testing for electric and electronic products Part 2. Test methods Test A. Low temperature (IEC 60068-2-
1.2007, IDT)
GB/T 2423.60-2008 Environmental testing for electric and electronic products Part 2. Test methods Test U. Lead and the overall security
Assembly strength (IEC 60068-2-21.2006, IDT)
Electromagnetic compatibility (EMC) test and measurement techniques Surge (immunity) immunity test (IEC 61000-4-5).
2005, IDT)
IEC 60068-2-20-2008 Environmental testing - Part 2-20. Test methods Test T. Solderable and solderable with soldering tin
Environmental testing-Part 2. Tests Test T. Tests methods for durability and re-
sistancetosolderingheatofdeviceswithleads)
ITU-T M.20.2011 Telecommunication equipment installed in telecommunications centers for over-voltage and over-current tolerance (Resistibilityoftele-
communicationequipmentinstaledinatelecommunicationscentretoovervoltagesandovercurrents)
3 Terms, definitions and symbols
3.1 Terms and definitions
The following terms and definitions apply to this document.
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