This standard specifies the glow-wire test method for ignition resistance test of samples of solid electrical insulating materials and other solid combustible materials. This test uses an electrically heated glow-wire as the ignition source. The test results can be used to compare the ignition temperatures of the above-mentioned materials. This test method is not suitable for determining the ignition resistance of the entire equipment, because the insulation system or the large structure of the combustible parts and the heat transfer of the adjacent metal or non-metallic parts have a great influence on the ignition resistance of the materials used. In addition, this test method is not suitable for determining the fire resistance or fire hazard of the equipment. GB/T 5169.13-1999 Test method for fire hazard test of electrical and electronic products Glow-wire ignition resistance test of materials GB/T5169.13-1999 Standard download decompression password: www.bzxz.net

GB/T5169.13—1999
This standard is equivalent to the International Electrotechnical Commission IEC695-2-1/3:1994 (1st Edition) "Fire Hazard Test Part 2: Test Methods Part 1/Chapter 3: Glow-wire Ignition Test of Materials". This standard is the basic electrical safety standard for electrical and electronic products and their materials, and specifies the glow-wire ignition test method for solid electrical insulating materials or other solid combustible materials. The "Glow-wire test method and guidance" is replaced by the following standards: GB/T5169.4-1985 "Fire hazard test for electric and electronic products GB/T5169.10--1997 Fire hazard test for electric and electronic products Test method Glow-wire test method General (idt IEC 695-2-1/0:1994)
Test method Glow-wire test and guidance for finished products Fire hazard test for electric and electronic products
GB/T 5169.11--1997
(idt IEC 695-2-1/1:1994)
Test method Glow-wire flammability test for materials Fire hazard test for electric and electronic products
GB/T 5169. 12-1999
(idt IEC 695-2-1/2:1994)
GB/T5169.13-—1999 Fire hazard test for electric and electronic products Test methods Glow-wire ignitability test for materials
(idt IEC 695-2-1/3:1994)
This standard is used together with GB/T5169.10--1997. From the date of entry into force, this standard will replace GB/T5169.4-1985. This standard was proposed by the State Machinery Industry Bureau
This standard is under the jurisdiction of the National Technical Committee for Environmental Conditions and Environmental Testing for Electric and Electronic Products. This standard was drafted by Guangzhou Electric Science Research Institute. The main drafters of this standard are Fang Peiwen, Huang Wenxiu, and Liu Yuezhan. This standard is entrusted to Guangzhou Electric Science Research Institute for interpretation. 514
GB/T5169.13—1999
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization organization composed of national electrotechnical committees (IEC National Committees). The mission of IEC is to promote international cooperation on various standardization issues in the field of electrical and electronic engineering. To this end, in addition to organizing other activities, it also publishes various international standards. IEC international standards are entrusted to technical committees for formulation. Any IEC National Committee interested in the issue under discussion can participate in this formulation work. International organizations, governmental and non-governmental organizations that have established relations with IEC can also participate in this formulation work. IEC cooperates closely with the International Organization for Standardization (ISO) under the conditions stipulated in the agreement it has reached with it. 2) IEC's formal resolutions or agreements on technical issues are formulated by technical committees in which representatives of national committees with special interest in the issue are represented, and express the international consensus on the issue as accurately as possible. 3) These resolutions or agreements are published in the form of standards, technical reports or guidelines, and are recommended for international use and accepted by national committees in this sense.
4) In order to promote international unification, IEC National Committees undertake to adopt IEC International Standards as faithfully as possible in their national or regional standards. Any inconsistencies between IEC standards and corresponding national or regional standards should be clearly pointed out in the national or regional standards as far as possible.
This International Standard IEC695-2-1/3 was prepared by IECTC89 (Technical Committee for Fire Hazard Testing). This International Standard is a basic safety standard in accordance with IEC104 Guide. This International Standard is based on the following documents: Draft International Standard
89 (Central Office) 23
Voting Report
89 (Central Office) 31
Full information on voting for this standard can be found in the voting report indicated in the table above. Part 1 of IEC695-2 cancels and replaces IEC695-2-1 published in 1991, Chapter 7 of IEC707 published in 1981 and Chapter 6 of IEC829 published in 1988.
IEC695-2-1 consists of the following chapters: IEC695-2-1/0 Fire hazard testing Part 2: Test methods Part 1/Chapter 0: Glow-wire test method General IEC695-2-1/1 Fire hazard testing Part 2: Test methods Part 1/Chapter 1: Glow-wire test and guidance for finished products IEC695-2-1/2 Fire hazard testing Part 2: Test methods Part 1/Chapter 2: Glow-wire flammability test on materials IEC695-2-1/3 Fire hazard testing Part 2: Test methods Part 1/Chapter 3: Glow-wire ignitability test on materials This standard is used together with IEC695-2-1/0. 515
1 Scope
National Standard of the People's Republic of China
Fire hazard testing for electric and electronic products--Test methods--Glow-wire ignitability test on materials
Fire hazard testing for electric and electronic products--Test methods--Glow-wire ignitability test on materialsGB/T 5169.13—1999
idt IEC 695-2-1/3:1994
Replaces GB/T5169.4—1985
This standard specifies the glow-wire test method for ignitability test of samples of solid electrical insulating materials and other solid combustible materials. In this test, an electrically heated glow wire is used as the ignition source. The test results can be used to compare the ignition temperatures of the above-mentioned materials. This test method is not suitable for determining the ignition properties of the entire equipment, because the size and structure of the insulation system or combustible parts and the heat transfer of adjacent metal or non-metallic parts have a great influence on the ignition properties of the materials used. In addition, this test method is not suitable for determining the fire resistance or fire hazard of the equipment.
2 Referenced standards and definitions
2.1 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. The versions shown are valid when this standard is published. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T10580--1989 Standard conditions for solid electrical insulating materials before and during testing (eqvIEC212:1971) (For detailed information, see GB/T5169.10-1997 Fire hazard test for electric and electronic products Test methods General principles for glow-wire test methods (idtIEC695-2-1/0:1994))
2.2 Definitions
This standard adopts the following definitions:
Ignitability
The ease with which a material ignites under the action of an external heat source under specified test conditions. Glow-wire ignition temperature (GWIT) Glow-wire ignition temperature The test temperature that is 25K higher than the highest temperature of the glow-wire top that does not cause ignition of the test sample in three consecutive tests. 3 Test instructions
The test sample should be a fixed size with a sufficiently large flat part. When conducting the test, the flat part to be tested should be in a vertical position. The test specimens may be made by the following methods: compression molding, transfer molding, injection molding, casting or machining from plates or parts with sufficiently large flat sections.
The dimensions of the flat section of the test specimen shall be:
Length ≥ 60 mm;
Width (inside the fixture) ≥ 60 mmz
Approved by the State Administration of Quality and Technical Supervision on October 10, 1999 516
Implementation on May 1, 2000
Thickness (3.0 ± 0.2) mm.
GB/T 5169.13-1999
If the test specimen has a test area with a diameter of at least 60 mm, the test specimen may be of any shape. According to the requirements of this test, a set of 10 test specimens is usually required to evaluate the ignition properties. Note: Ignition properties usually vary with the thickness of the material being tested. In addition to the specified standard thickness, thicknesses of 0.8 mm, 1.6 mm and 6.0mm test specimens, the test results obtained are also useful. The test specimen is placed so that its free plane is in a vertical position. During the test, the top of the electrically heated glow wire contacts the free plane of the test specimen. The test is repeated with different glow wire test temperatures, and a new specimen is used for each test to determine the GWIT of the test material.
4 Description of the test apparatus
The description of the test apparatus is shown in GB/T5169.10. 5 Severity level
The top temperature of the glow wire and the duration of applying the glow wire to the test specimen should be selected from Table 1. Table 1
Test temperature, ℃bzxZ.net
6 Calibration and verification of the temperature measurement system
Test duration; t. (30±1)g
The calibration and verification of the temperature measurement system are shown in GB/T5169.10. 7 Pretreatment
Allowable deviation, K
Before the test, the test sample shall be pretreated for 48h (48h/23℃/50%) in standard atmosphere B as specified in GB/T10580. 8 Initial measurement
The test sample shall be fully marked and visually inspected. Measure and record the thickness of the test sample.
9 Test procedure
For precautions, see GB/T5169.10.
9.1 When installing or clamping the test sample, ensure that the heat dissipation caused by the support or fastening device is negligible. The layout of the test sample shall be such that:
The plane area of ​​the test surface is vertical;
The top of the glow wire acts on the center of the plane area of ​​the test sample surface. 517
9.2See GB/T 5169.10.
GB/T 5169.13—1999
9.3 The glow-wire is electrically heated to a test temperature specified in Chapter 5 that is considered just sufficient to cause the test sample to ignite, and measured with a calibrated thermocouple. Before starting the test, care must be taken to ensure that the temperature and heating current remain constant for at least 60 seconds, and during this time or during the calibration process, the test sample is protected from the influence of thermal radiation by keeping the glow-wire at a certain distance from the test sample or using a suitable shield.
9.4 In addition to 9.4 of GB/T5169.10-1997, the duration of contact between the top of the glow-wire and the test sample is (30±1) $ as specified in Chapter 5.
9.5 If the test sample ignites during the application of the glow-wire, the test is repeated with a new sample at a temperature 50K lower than the previous test temperature.
If the test sample does not ignite during the application of the glow-wire, repeat the test with a new sample at a temperature 50K higher than the previous test temperature.
Each time a new sample is used to repeat the test, the test temperature interval is reduced to 25K at the end of the test to determine the highest temperature test for three consecutive failures to ignite.
10 Observation and measurement
During the application of the glow-wire and within 30s after the application, the test sample should be observed and the duration from the top of the glow-wire contacting the sample to the ignition of the test sample, i.e., the ignition time T, should be recorded. Note: In this standard, ignition means a visible flame of more than 5s. If a bottom layer of tightly wrapped paper is placed under the test sample, when the glow-wire is removed from the test sample, the falling burning or glowing particles neither ignite the silk paper nor burn the pine board, it can be judged that there is no ignition. 11 Evaluation of test results
The ignition temperature of the test sample during the application of the glow-wire must be determined. The test temperature 25K higher than the highest temperature of the glow-wire tip that does not cause ignition of the test sample in three consecutive tests is recorded as GWIT. The GWIT should be recorded as follows:
For example, for a test sample with a thickness of 3mm, the test temperature is 825℃, which is recorded as GWIT: 825/3.0.
12 Test report
The test report should include the following:
Reference to the test method of this standard;
Complete identification of the test material, including model and manufacturer (Chapter 8); Description of the test sample preparation method (Chapter 3);-Pretreatment (Chapter 7);
Ignition time T (Chapter 10);
Glow-wire ignition temperature GWIT (Chapter 11). 518
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