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GB/T 18380.31-2022: Tests on electric and optical fibre cables under fire conditions - Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables - Apparatus
Status: Valid GB/T 18380.31: Evolution and historical versions
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| GB/T 18380.31-2022 | English | 334 |
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Tests on electric and optical fibre cables under fire conditions - Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables - Apparatus
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GB/T 18380.31-2022
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| GB/T 18380.31-2008 | English | 554 |
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Test on electric and optical fibre cables under fire conditions -- Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables -- Apparatus
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GB/T 18380.31-2008
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PDF similar to GB/T 18380.31-2022
Basic data | Standard ID | GB/T 18380.31-2022 (GB/T18380.31-2022) | | Description (Translated English) | Tests on electric and optical fibre cables under fire conditions - Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables - Apparatus | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K13 | | Word Count Estimation | 17,179 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 18380.31-2022: Tests on electric and optical fibre cables under fire conditions - Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables - Apparatus
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Tests on electric and optical fibre cables under fire conditions - Part 31.Test for vertical flame spread of vertically-mounted bunched wires or cables - Apparatus
ICS 29.060.20
CCSK13
National Standards of People's Republic of China
Replacing GB/T 18380.31-2008
Fire testing of electrical and optical cables under flame conditions
Part 31.Vertically installed bundles of wires and cables
Test device for vertical flame spread test
2022-03-09 Released 2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
Introduction III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Test environment 1
5 Test device 1
6 Ignition source 2
Appendix B (informative) Correction factor for flowmeter calibration 10
Reference 12
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is part 31 of GB/T 18380 "Burning test of cables and optical cables under flame conditions". GB/T 18380 has been issued
The following parts are distributed.
--- Part 11.Test device for vertical flame spread test of a single insulated wire and cable;
--- Part 12.Test method for vertical flame spread of single insulated wire and cable 1kW premixed flame;
--- Part 13.Test method for the vertical spread of flame of a single insulated wire and cable to determine burning drips (objects)/particles;
--- Part 21.Test device for vertical flame spread of single insulated thin wire and cable;
--- Part 22.Test method for vertical spread of flame of single insulated thin wire and cable - Diffusion type flame test method;
--- Part 31.Test device for vertical flame spread of bundled wires and cables installed vertically;
--- Part 32.Vertically installed bundled wire and cable flame vertical spread test AF/R;
--- Part 33.Vertically installed bundled wire and cable flame vertical spread test Class A;
--- Part 34.Vertically installed bundled wire and cable flame vertical spread test Class B;
--- Part 35.Vertically installed bundled wire and cable flame vertical spread test Class C;
--- Part 36.Vertical flame spread test of bundled wires and cables installed vertically Class D.
This document replaces GB/T 18380.31-2008 "Burning test of electrical and optical cables under flame conditions - Part 31.Vertical installation
"Test device for vertical flame spread of bundled wires and cables", compared with GB/T 18380.31-2008, except for structural adjustment and editing
In addition to the changes, the main technical changes are as follows.
--- Increased the requirements for the air intake method, the requirements for the intake box, and the requirements for the cross-sectional area and length of the intake pipe (see 5.2, 5.2 of the.2008 edition);
--- Increased the connection requirements of the Venturi mixer to the burner, the mass flow of propane gas and air (see 6.1,.2008 edition of
6.1);
--- Changed the distance between the centerline of the burner and the bottom of the test chamber (see 6.2, 6.2 of the.2008 edition);
--- Added optional extensions and optional rungs for steel ladders (see Figure 4, Figure 4 of the.2008 edition).
This document is equivalent to IEC 60332-3-10.2018 "Cables and Optical Cables Fire Tests under Flame Conditions Part 3-10.Vertical
Installed bundled wire and cable flame vertical spread test test device".
The following minimal editorial changes have been made to this document.
--- In order to harmonize with existing standards, the standard name is changed to "Cables and Optical Cables Fire Tests under Flame Conditions Part 31.Vertical
Installed bundled wire and cable flame vertical spread test test device";
---Incorporates the technical errata content of IEC 60332-3-10.2018/COR1.2018, and the outer margins of the clauses involved
The placement is marked with a vertical double line (‖);
--- Deleted Appendix A (informative) of IEC 60332-3-10.2018, its content is only for suppliers of burners and mass flow meters
information.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Standardization Technical Committee of Wires and Cables (SAC/TC213).
This document is drafted by. Shanghai State Cable Inspection Co., Ltd., Shanghai Qifan Cable Co., Ltd., Shanghai Huapu Cable Co., Ltd.
Company, Jiangsu Shangshang Cable Group Co., Ltd., Jiangsu Hengtong Power Cable Co., Ltd., Zhongtian Technology Submarine Cable Co., Ltd., Far East Cable Co., Ltd.
Co., Ltd., Qingdao Han Cable Co., Ltd., Baosheng Technology Innovation Co., Ltd., Yangzhou Shuguang Cable Co., Ltd., China Electric Power Co., Ltd.
Research Institute, Jinbei Electric Co., Ltd., Ningbo Ball Crown Cable Co., Ltd., Shanghai Cable Research Institute Co., Ltd., Shanghai Pudong Electric Power Co., Ltd.
Cable (Group) Co., Ltd., Sichuan Fire Research Institute of Emergency Management Department, Guangdong Cable Factory Co., Ltd., Jinlongyu Group Co., Ltd.,
Sunway Co., Ltd., Zhejiang Wanma Co., Ltd., Shanghai Moen Electric Co., Ltd., Guangdong New Yaguang Cable Industry Co., Ltd.
Company, Xinyate Cable Co., Ltd., Kunming Cable Group Kundian Electric Cable Co., Ltd., Guangzhou Nanyang Cable Group Co., Ltd., Hangzhou Electric Cable Co., Ltd.
Cable Co., Ltd., Wuxi Jiangnan Cable Co., Ltd., TBEA Shandong Luneng Taishan Cable Co., Ltd., CGNPC High-tech Nuclear Materials Group
Co., Ltd., Zhejiang Chenguang Cable Co., Ltd., Shanghai Jinyou Jinhong Intelligent Electric Co., Ltd., Jiangsu Dongfeng Cable Co., Ltd.,
Hunan Hualing Cable Co., Ltd., Weihai Honglin Power Technology Co., Ltd., Shenyang North Aike Cable Co., Ltd., Hainan Weiwei
Te Electric Group Co., Ltd., Changfeng Cable Co., Ltd., Hebei Huatong Cable Group Co., Ltd., Jiangsu Yongding Co., Ltd.,
Hebei Xinbaofeng Wire and Cable Co., Ltd., Tianjin Futong Information Technology Co., Ltd., Fujian Nanping Sun Cable Co., Ltd.,
Xi'an Xidian Optical Cable Co., Ltd., Shenzhen Jinhuanyu Wire and Cable Co., Ltd., Shandong Hualing Cable Co., Ltd., Guangdong Huanwei Electric
Cable Co., Ltd., Zhejiang Wanma Tianyi Communication Cable Co., Ltd., Shenzhen Shenxuan Technology Co., Ltd.
The main drafters of this document. Liu Wei, Gao Zuohai, Ji Chuxi, Ling Guozhen, Guan Xinyuan, Zhang Jianmin, Liu Huajun, Wang Hua, Fang Quansheng, Liang Guohua,
Zhao Jiankang, Yang Wenfeng, Wen Shanghai, Xin Xiudong, Chen Wei, Hu Linming, Gao Weihong, Li Yunhuan, Shen Zhifei, Liu Huanxin, Hu Shaozhong, Zhang Zhimin, Zhu Wei,
Jiang Weimin, Wang Zhihui, Teng Zhaofeng, Bao Qiwei, Liu Shufang, Fei Churan, Yue Zhenguo, Lu Bangxiu, Zhao Yingrong, Zhang Gongzhuo, Jia Haifeng, Su Yinyu,
Li Ju, Kong Deqing, Zhang Hongjun, Chen Xiaohong, Wu Jiansheng, Zhang Long, Fan Defa, Wang Hui, Wang Laixiang, Huang Yanjiang, Zhang Qingyue, Nie Hongjun, Wu Laili.
The previous versions of this document and its superseded documents are as follows.
---First released in.1990 as GB 12666.5-1990;
--- The first revision in.2001, adjusted to GB/T 18380.3-2001;
---The second revision in.2008, adjusted to GB/T 18380.31-2008;
---This is the third revision.
Introduction
Flame retardant wire and cable or optical cable products are widely used in various construction projects.
It is of great significance to reduce the occurrence of disasters and the spread of flames, reduce fire losses, and ensure the safe evacuation of all kinds of people. GB/T 18380 aims to establish
The test method for the flame retardant performance of different flame retardant wire and cable or optical cable products under different installation and laying conditions is planned to be composed of 11 parts.
--- Part 11.Test device for vertical spread of flame for a single insulated wire and cable. The purpose is to specify for single insulated electrical
Test device for vertical flame spread test of wire and cable.
--- Part 12.Single insulated wire and cable flame vertical spread test 1kW premixed flame test method. the purpose is
Test method for determining the vertical flame spread of a single insulated wire or cable or fiber optic cable under 1 kW premixed flame conditions.
--- Part 13.Test method for vertical flame spread of a single insulated wire and cable to determine burning drips (objects)/particles.
The purpose is to determine the test for the determination of burning drips (objects)/particulates in the vertical flame spread test of a single insulated wire and cable
method.
--- Part 21.Test device for vertical flame spread test of a single insulated thin wire and cable. Intended to be specified for single insulation
Test device for vertical flame spread test of thin wire and cable.
--- Part 22.Vertical flame spread test method for single insulated thin wire and cable Diffusion-type flame test method. The purpose is to determine the total
Insulated thin wires and cables with a cross-section less than 0.5mm2 and thin optical cables or conductors that may break under 1kW premixed flame conditions
Test method for vertical spread of flame on thin wires that may fuse.
--- Part 31.Vertically installed bundled wire and cable flame vertical spread test test device. The purpose is to provide for vertical
Test device for vertical flame spread of straight-mounted bundled wires and cables, and installation arrangement and calibration.
--- Part 32.Vertically installed bundled wire and cable flame vertical spread test AF/R category. The purpose is to determine the applicable
Test method for the ability of special cables to be used in special installations to inhibit the spread of flame when installed in vertical bundles.
--- Part 33.Vertical flame spread test of bundled wires and cables installed vertically Class A. The purpose is to determine the
Test for the ability of wire, cable or optical cable products to inhibit the spread of flame when installed in vertical bundles in the case of metal material volume content
method.
--- Part 34.Vertical flame spread test of bundled wires and cables installed vertically Class B. The purpose is to determine the medium for rating
Test on the ability of wire, cable or optical cable products to inhibit the spread of flame when installed in vertical bundles in the case of non-metallic material volume content
method.
--- Part 35.Vertical flame spread test of bundled wires and cables installed vertically Class C. The purpose is to determine the
Test for the ability of wire, cable or optical cable products to inhibit the spread of flame when installed in vertical bundles in the case of metal material volume content
method.
--- Part 36.Vertical flame spread test of bundled wires and cables installed vertically Class D. The purpose is to determine the very low
Test method for the ability of small cable products to inhibit the spread of flame when installed in vertical bundles in the case of non-metallic material volume content.
Fire testing of electrical and optical cables under flame conditions
Part 31.Vertically installed bundles of wires and cables
Test device for vertical flame spread test
1 Scope
This document describes in detail the test set-up for the vertical flame spread test of vertically installed bundles of wire, cable or fiber optic cables under specified conditions.
and its placement and calibration.
Note. The term "wire and cable" in this document includes all metal conductor insulated cables used for energy or signal transmission.
2 Normative references
There are no normative references in this document.
3 Terms and Definitions
The following terms and definitions apply to this document.
ISO and IEC maintain terminology databases for standardization at the following addresses.
3.1
ignition source ignitionsource
A source of energy that initiates combustion.
[Source. ISO 13943.2017, 3.219]
4 Test environment
If the external wind speed measured by the anemometer installed on the top of the test box is greater than 8m/s, the test should not be carried out. If the temperature of the inner wall is low
The test should also not be carried out at 5°C or above 40°C. The temperature of the inner wall should be 1500mm from the bottom of the box, 50mm from the side wall and 50mm from the door.
Measure at a position of 1000mm. The door of the test chamber should always be closed during the test.
5 Test device
The test apparatus consists of the following parts.
5.1 Test Chamber
The test box [see Figure 1a) and Figure 1b)] should be a width (1000 ± 100) mm, depth (2000 ± 100) mm, height (4000 ± 100) mm
Vertical box. The bottom plate of the test chamber should be higher than the ground. The side of the test box should be sealed, and the air from the bottom of the box is (150 ± 10) mm from the front wall of the test box.
A (800 ± 20) mm × (400 ± 10) mm air inlet (see Figure 1) enters the test chamber.
A smoke outlet of (300±30)mm×(1000±100)mm should be opened at the back of the top of the test chamber. The back wall and sides of the test chamber
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