GB/T 17651.1-2021 English PDFUS$264.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17651.1-2021: Measurement of smoke density of cables or optical fiber cables burning under defined conditions - Part 1: Test apparatus Status: Valid GB/T 17651.1: Historical versions
Basic dataStandard ID: GB/T 17651.1-2021 (GB/T17651.1-2021)Description (Translated English): Measurement of smoke density of cables or optical fiber cables burning under defined conditions - Part 1: Test apparatus Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K13 Word Count Estimation: 14,190 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 17651.1-2021: Measurement of smoke density of cables or optical fiber cables burning under defined conditions - Part 1: Test apparatus---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. Measurement of smoke density of cables or optical fiber cables burning under defined conditions-Part 1.Test apparatus ICS 29.060.01 CCSK13 National Standards of People's Republic of China Replace GB/T 17651.1-1998 Cable or fiber optic cable burns under certain conditions Smoke density determination Part 1.Test device (IEC 61034-1.2019, Measurementofsmokedensityofcablesburning Released on 2021-04-30 2021-11-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee Table of contentsForeword Ⅰ Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Test box 1 5 Optical measuring device 2 6 Standard fire source 4 7 Mixing of smoke 4 8 Blank test 5 9 Approval of test equipment 5 10 Qualified and approved combustion test 5 Appendix A (Informative) Guidance Note 7 Reference 9ForewordThis 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" Drafting. This document is the first part of GB/T 17651 "Determination of Smoke Density of Cables or Optical Cables Burning under Specific Conditions". GB/T 17651 The following parts have been released. ---Part 1.Test device; ---Part 2.Test procedures and requirements. This document replaces GB/T 17651.1-1998 "Determination of smoke density of cables or optical cables burning under specific conditions-Part 1.Tests Compared with GB/T 17651.1-1998, except for structural adjustments and editorial changes, the main technical changes are as follows. ---Added the applicable documents of normative reference documents (see Chapter 2); --- Added applicable documents of terms and definitions (see Chapter 3); ---Modified the technical requirements for vents (see Chapter 4, Chapter 4 of the.1998 edition); ---Added the description of the position of the windscreen (see Chapter 4); ---Modified the absorption coefficient calculation formula and description (see 10.5, 10.5 in the.1998 edition). The translation method used in this document is equivalent to IEC 61034-1.2019 ``Determination of Smoke Density of Cables Burning under Specific Conditions Part 1. Test device". The Chinese documents that have consistent correspondence with the normatively cited international documents in this document are as follows. ---GB/T 5169.1-2015 Fire hazard test of electric and electronic products Part 1.Fire test terminology (IEC 60695-4. 2012, IDT). This document has made the following editorial changes. ---In order to be consistent with the existing standard series, the name of this document is changed to "Determination of Smoke Density of Cable or Optical Cable Burning under Specific Conditions" Part 1.Test Equipment; ---Added the introduction; ---Adjust the IEC Guide104 not cited in the main text of IEC 61034-1.2019 to the reference. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Wire and Cable Standardization Technical Committee (SAC/TC213). Drafting organizations of this document. Shanghai National Cable Testing Center Co., Ltd., Jiangsu Zhongtian Technology Co., Ltd., Hunan Valin Cable Co., Ltd. Co., Ltd., Shanghai Cable Research Institute Co., Ltd., Shanghai Qifan Cable Co., Ltd., Baosheng Technology Innovation Co., Ltd., Zhongtian Technology Equipment Cable Co., Ltd., Jiangsu Shangshang Cable Group Co., Ltd., Shenyang Jiewei Technology Development Co., Ltd., Hangzhou Cable Co., Ltd., Yangzhou Shuguang Cable Co., Ltd., National Fireproof Building Material Quality Supervision and Inspection Center, Wuxi Jiangnan Cable Co., Ltd., Guangzhou Nanyang Cable Co., Ltd., Jinbei Electric Co., Ltd., Shanghai Capote Cable Material Factory Co., Ltd., Zhejiang Wanma Co., Ltd., Jiangsu Hengtong Power Cable Co., Ltd., Far East Cable Co., Ltd., Zhongchen Cable Co., Ltd., Ningbo Qiguan Cable Co., Ltd., Changfeng Cable Co., Ltd., Sunway Co., Ltd., TBEA Shandong Luneng Taishan Cable Co., Ltd., Fujian Nanping Sun Cable Co., Ltd. Company, Shanghai Pudong Wire and Cable (Group) Co., Ltd., Shanghai Nanyang-Fujikura Cable Co., Ltd., Hebei Huatong Cable Group Co., Ltd. Company, Jiangsu Yongding Co., Ltd., Shanghai Moen Electric Co., Ltd., Zhejiang Chenguang Cable Co., Ltd., CGN High-tech Nuclear Materials Technology (Suzhou) Co., Ltd., Hangzhou Futong Communication Technology Co., Ltd., Shenzhen Xinaoke Cable Co., Ltd., Hebei Xinbaofeng Wire and Electricity Co., Ltd. Cable Co., Ltd., Kunming Cable Group Kun Electric Cable Co., Ltd., Shenyang Guhe Cable Co., Ltd., Hainan Weite Cable Co., Ltd., Jinlong Yu Group Co., Ltd., Guangdong Cable Factory Co., Ltd. The main drafters of this document. Peng Chunyao, Xie Shuhong, Zhang Gongzhuo, Hong Ningning, Gao Wenqi, Fang Quansheng, Xie Xiangqian, Ling Guozhen, Xie Guiqin, Teng Zhaofeng, Liang Guohua, Feng Jun, Ma Zhuang, Wang Zhihui, Yang Wenfeng, Duan Chunlai, Liu Huanxin, Zheng Jianping, Xu Jing, Xu Qifa, Wen Shanghai, Kong Deqing, Shen Zhifei, Long Qin, Fan Defa, Chen Wei, Cui Xuelin, Dou Limei, Chen Xiaohong, Hu Shaozhong, Yue Zhenguo, Fei Churan, Yu Youji, Li Fulong, Wujian Province, Jiang Weimin, Zhang Daoli, Li Ju, Li Yunhuan, Gao Weihong. The previous versions of this document and the documents replaced are as follows. ---First released in.1990 as GB 12666.7-1990; ---The first revision in.1998 was GB/T 17651.1-1998; ---This is the second revision.IntroductionThe smoke density of a cable or optical cable is an important indicator for evaluating the burning performance of a cable or optical cable. In the event of a fire, the cable or optical cable The low-smoke characteristics of the company ensure the safe evacuation of all types of personnel and the normal development of fire and rescue work, and it is important for social public safety and reducing fire losses. Has an important role. GB/T 17651 is a basic test method for determining the smoke emission of cables or optical cables in the event of a fire. GB/T 17651 It aims to establish a test method standard for the smoke density of different wire and cable or optical cable products burning under specific conditions. It is proposed to be composed of the following two parts. Sub-composition. ---Part 1.Test device. The purpose is to establish a test suitable for the determination of the smoke density of cables or optical cables burning under specific conditions. Requirements for testing devices and qualification approval procedures for testing devices. ---Part 2.Test procedures and requirements. The purpose is to establish a test for the determination of the smoke density of a cable or optical cable burning under specific conditions. Inspection procedures and recommended compliance requirements. GB/T 17651 is issued in two parts, which together specify a method for determining the smoke density of a cable or optical cable burning under specific conditions. law. Users of this test method should note that the number of samples and bundles of cables or optical cables in the test may not represent the actual installation. Happening. Part 1 introduces in detail the test equipment and the combination of the test equipment used to determine the smoke density of cables or optical cables burning under specific conditions. Lattice recognition. It includes a test chamber with a volume of 27m2, a light measuring device for light measurement, standard fire source, smoke mixing, blank test and test equipment Detailed information about the conformity accreditation procedures set up. Appendix A provides guidance on various aspects of the test device. It may be useful in case inspection. Part 2 gives the test procedures, and when specific requirements are not given in a specific cable standard or specification, the informative appendix gives a recommendation. Recommended compliance requirements. Cable or fiber optic cable burns under certain conditions Smoke density determination Part 1.Test device1 ScopeThis document describes the determination of the smoke emitted by cables or optical cables burning under certain conditions (for example, when some cables or optical cables are burned horizontally). Details of the test equipment used. Under the conditions of flame combustion or flameless combustion, the light transmittance (It) can be used to compare different cables or judge Whether it meets the specific requirements of the means. Note. "Cable" in this document refers to all insulated metal conductor cables used to transmit electrical energy or signals.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. IEC 60695-4 Fire hazard testing for electrical and electronic products Part 4.Firehazard testing-Part 4. Terminologyconcerningfiretestsforelectrotechnicalproducts) ISO /IEC 13943.2000 Firesafety-Vocabulary3 Terms and definitionsThe terms and definitions defined by IEC 60695-4 and ISO /IEC 13943.2000 apply to this document.4 Test boxThe test box shall include a cube formed by fixing the angle steel bracket with suitable materials, and its internal dimension shall be 3000mm± 30mm. One side of the cube should have a door with a glass observation window. A transparent sealed window (minimum The size is 100mm×100mm) to allow the light beam of the horizontal light measuring device to pass through. The height of the center of these sealed windows from the ground should be 2150mm±100mm (see Figure 1). In order to wear cables or optical cables, and to make the inside of the test box under atmospheric pressure, the walls of the test box should be opened on the ground plane. Air hole (the distance from the air hole to the floor of the test chamber is not more than 100mm). Any vents should not be directly behind the fire source or on the same wall. During the test, at least two vents should be opened and open The total area of the vent holes should be 50cm2±10cm2. Note 1.Two vent holes, each vent area is 25cm2±5cm2, the location of the two vent holes is on two opposite walls, one is below the light source, and the other Below the receiver is more suitable. The ambient temperature outside the test box should be 20 ℃ ± 10 ℃, and the test box should not be directly exposed to sunlight or extreme weather conditions. Note 2.Usually after each test, the smoke is discharged from the test box as much as possible through the pipe with the valve. The valve should be closed during the test, and the pipe can be equipped with a row. The fan is used to increase the speed of exhausting smoke. It is advisable to open the door of the test chamber to speed up the exhausting process. The windscreen has a width of 1500mm±50mm and a height of 1000mm±50mm. The position in the test chamber is shown in Figure 1.Windscreen should Close to the rear wall (maximum gap 10mm) and the distance from the side wall is 750mm±25mm, the windscreen should be bent to be in line with the center line of the test box ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17651.1-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 17651.1-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 17651.1-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 17651.1-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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