欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM D5424-2014 red 8023 Standard Test Method for Smoke Obscuration of Insulating Materials Contained in Electrical or Optical Fiber Cables When Burning in a Vertical Cable Tray Co.pdf

    • 资源ID:519745       资源大小:467.46KB        全文页数:28页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ASTM D5424-2014 red 8023 Standard Test Method for Smoke Obscuration of Insulating Materials Contained in Electrical or Optical Fiber Cables When Burning in a Vertical Cable Tray Co.pdf

    1、Designation: D5424 10D5424 14Standard Test Method forSmoke Obscuration of Insulating Materials Contained inElectrical or Optical Fiber Cables When Burning in a VerticalCable Tray Configuration1This standard is issued under the fixed designation D5424; the number immediately following the designation

    2、 indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This is a fire-test-response standar

    3、d.1.2 This test method provides a means to measure the smoke obscuration resulting from burning electrical insulating materialscontained in electrical or optical fiber cables when the cable specimens, excluding accessories, are subjected to a specified flamingignition source and burn freely under we

    4、ll ventilated conditions.1.3 This test method provides two different protocols for exposing the materials, when made into cable specimens, to an ignitionsource (approximately 20 kW), for a 20 min test duration. Use it to determine the flame propagation and smoke releasecharacteristics of the materia

    5、ls contained in single and multiconductor electrical or optical fiber cables designed for use in cabletrays.1.4 This test method does not provide information on the fire performance of electrical or optical fiber cables in fire conditionsother than the ones specifically used in this test method, nor

    6、 does it measure the contribution of the cables to a developing firecondition.1.5 Data describing the burning behavior from ignition to the end of the test are obtained.1.6 The production of light obscuring smoke is measured.1.7 The burning behavior is documented visually, by photographic or video r

    7、ecordings, or both.1.8 The test equipment is suitable for making other, optional, measurements, including the rate of heat release of the burningspecimen, by an oxygen consumption technique and weight loss.1.9 Another set of optional measurements are the concentrations of certain toxic gas species i

    8、n the combustion gases.1.10 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.(See IEEE/ASTM SI 10.)1.11 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlledc

    9、onditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, productsor assemblies under actual fire conditions.1.12 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conductingthe

    10、se tests.1.13 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Refe

    11、renced Documents2.1 ASTM Standards:2D1711 Terminology Relating to Electrical Insulation1 This test method is under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and is the direct responsibility of SubcommitteeD09.21 on Fire Performance Standards.Current edi

    12、tion approved March 1, 2010Nov. 1, 2014. Published April 2010November 2014. Originally approved in 1993. Last previous edition approved in 20052010as D5424D5424 10.05. DOI: 10.1520/D5424-10.10.1520/D5424-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer

    13、Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the pre

    14、vious version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Ch

    15、anges section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E84 Test Method for Surface Burning Characteristics of Building MaterialsE176 Terminology of Fire StandardsE800 Guide for Measurement of

    16、Gases Present or Generated During FiresE1354 Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen ConsumptionCalorimeterIEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System2.2 NFPA Standard:Standards:3ANSI/NFP

    17、A 70-1990NFPA 70 National Electrical Code1990, National Fire Protection AssociationCodeNFPA 289 Standard Method of Fire Test for Individual Fuel Packages2.3 Underwriters Laboratories Standards:4UL 1056 Fire Test of Upholstered Furniture, Underwriters Laboratories, 1989UL 1581 Reference Standard for

    18、Electrical Wires, Cables, and Flexible Cords, March 6, 1987, Underwriters Laboratories, Inc.,ANSI/UL 1581-1985CordsUL 1685 Standard Vertical Tray Fire Propagation and Smoke Release Test for Electrical and Optical Fiber Cables, UnderwritersLaboratories, Inc., January 27, 1992Cables2.4 Canadian Standa

    19、rds Association Standards:5CSA Standard FT-4 Vertical Flame Tests: Cables in Cable Trays, Section 4.11.4 in C22.2 No. 0.3-M1985,0.3, Test Methods forElectrical Wires and Cables2.5 IEEE Standards:6IEEE 1202 Standard for Flame Testing of Cables for Use in Cable Tray in Industrial and Commercial Occupa

    20、ncies, May 29,1991.Occupancies2.6 Other Standards:CA Technical Bulletin 133 Flammability Test Procedure for Seating Furniture for Use in Public Occupancies, January, 19917Nordtest Method NT Fire 032 Upholstered Furniture: Burning BehaviorFull Scale Test8ISO 13943 Fire SafetyVocabulary93. Terminology

    21、3.1 DefinitionsFor definitions of terms used in this test method and associated with fire issues, refer to Terminology E176 andISO 13943. In case of conflict, the definitions given in Terminology E176 shall prevail. For definitions of terms used in this testmethod and associated with electrical insu

    22、lation issues, refer to Terminology D1711.3.2 Definitions of Terms Specific to This Standard:3.2.1 sample, nan amount of the cable type and construction to be tested, which is representative of the product for test.3.2.2 specimen, nthe individual length of cable, or cable bundle, to be placed in the

    23、 cable tray, which is representative of theproduct to be tested.4. Summary of Test Method4.1 This fire-test-response standard determines a number of fire-test-response characteristics associated with smoke obscurationresulting from burning the materials insulating full-scale specimens of electrical

    24、or optical fiber cables located in a vertical cabletray and ignited with a propane gas burner. This test method is also suitable for making other, optional measurements, includingrates of heat release, total amounts of heat released, rates and concentrations of carbon oxides released, and rates and

    25、amounts ofmass of the specimen lost (see Appendix X2). Further optional measurements are also possible.4.2 The vertical cable tray that holds the specimen is located in an enclosure of specified dimensions.4.3 A hood, connected to a duct, is located above the fire enclosure. Smoke release instrument

    26、ation is placed in the duct. Heatand gas analysis release instrumentation (optional) is also placed in the duct.4.4 Two different test procedures are specified, which differ in the burner used and in the electrical or optical fiber cable loading.These reflect details of three existing test methods:

    27、UL 1581 (protocol A) and CSA Standard FT-4 in C22.2 No. 0.3-M1985No. 0.3-M1985, or IEEE 1202 (protocol B) and UL 1685 (both protocols).3 Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http:/www.nfpa.org.4 Available from Underwriters Laboratori

    28、es (UL), 333 Pfingsten Rd., Northbrook, IL 60062-2096, http:/.5 Available from Canadian Standards Association (CSA), 5060 Spectrum Way, Mississauga, ON L4W 5N6, Canada, http:/www.csa.ca.6 Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE), 445 Hoes Ln., P.O. Box 1331, Pisc

    29、ataway, NJ 08854-1331, http:/www.ieee.org.7 Available from Bureau of Home Furnishings and Thermal Insulation, State of California, Department of Consumer Affairs, 3485 Orange Grove Ave., North Highlands,CA 95660-5595.8 Available from Nordtest, P.O. Box 22, SF-00341, Helsingfore, Finland, 1987.9 Avai

    30、lable from International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http:/www.iso.ch.D5424 1425. Significance and Use5.1 This test method provides a means to measure a variety of fire-test-response characteristics associated wi

    31、th smokeobscuration and resulting from burning the electrical insulating materials contained in electrical or optical fiber cables. Thespecimens are allowed to burn freely under well ventilated conditions after ignition by means of a propane gas burner.5.2 Smoke obscuration quantifies the visibility

    32、 in fires.5.3 This test method is also suitable for measuring the rate of heat release as an optional measurement. The rate of heat releaseoften serves as an indication of the intensity of the fire generated.5.4 Other optional fire-test-response characteristics that are measurable by this test metho

    33、d are useful to make decisions on firesafety. The most important gaseous components of smoke are the carbon oxides, present in all fires. They are major indicators ofthe toxicity of the atmosphere and of the completeness of combustion, and are often used as part of fire hazard assessmentcalculations

    34、 and to improve the accuracy of heat release measurements. Other toxic gases, which are specific to certain materials,are less crucial for determining combustion completeness.5.5 Test Limitations:5.5.1 The fire-test-response characteristics measured in this test method are a representation of the ma

    35、nner in which thespecimens tested behave under certain specific conditions. Do not assume they are representative of a generic fire performance ofthe materials tested when made into cables of the construction under consideration.5.5.2 In particular, it is unlikely that this test method is an adequat

    36、e representation of the fire behavior of cables in confinedspaces, without abundant circulation of air.5.5.3 This is an intermediate-scale test, and the predictability of its results to large scale fires has not been determined. Someinformation exists to suggest that it has been validated against so

    37、me large-scale scenarios.6. Apparatus6.1 Enclosure:6.1.1 The enclosure in which the specimen is tested is shown in Fig. 1.6.1.2 The enclosure has a floor area of 2.44 m 6 25 mm by 2.44 m 6 25 mm, with a height of 3.35 m 6 25 mm (8 ft 6 1in. by 8 ft 6 1 in. by 11 ft 6 1 in. high). On top of the walls

    38、 there is a pyramidal collection hood with a collection box.FIG. 1 Cable Test EnclosureD5424 1436.1.2.1 Other enclosure sizes, such as 2.4 by 2.4 by 2.4 m (8 by 8 by 8 ft) or the 3 m cube are permitted, provided that theinternal volume of the enclosure, exclusive of the pyramidal hood, ranges betwee

    39、n 14.5 m3 (512 ft3) and 36 m3 (1272 ft(512 and1272 ft3), the floor area ranges between 6 m2 (64 ft2) and 9 m2 (97 ftand 64 ft2), and the maximum air movement within theenclosure complies with 6.1.10 (Note 1).NOTE 1There is, as yet, not enough information as to the equivalence on smoke release betwee

    40、n the various facilities. Further work needs to be doneto confirm this.6.1.2.2 In case of disputes, the referee method are the tests conducted using the enclosure in 6.1.2.6.1.3 WallsThe maximum conductive heat flux loss of the walls of the structure is 6.8 W/(m2K) (30 Btu/h-ft2), based uponan insid

    41、e wall temperature of 38 C (100 F) 38C (100F) and an outside air temperature of 24 C (75 F). 24C (75F). Paintthe interior surface of the walls flat black.Any materials of construction that meet the preceding requirements are acceptable. Twoexamples of acceptable construction materials are nominally

    42、152 mm (6 in.) thick concrete masonry blocks (density: 1700 kgmkg/m3 (106 lb ftlb/ft3) and thermal conductivity nominally k = 1.75 W/(m K), at 21 C; 21C; 12.13 Btu in./ft2 h F, at 70 F)70F), or nominally 13 mm (0.5 in.) gypsum board, with 89 6 6 mm (3.5 6 0.25 in.) of standard fiberglass insulation,

    43、 with anR value of 1.94 m2 K/W (which corresponds in practical units to an R value of 11 h ft2 F/Btu. F/Btu). Windows for observationof the fire test are allowed in the walls; ensure that the total area of the windows does not exceed 1.86 m2 (20 ft2).6.1.3.1 Select materials of construction which ca

    44、n withstand the high temperatures and presence of open flame within the testenclosure and duct.6.1.4 Provide air intakes at the base of two opposite walls, one of which contains the access door. Ensure that the total crosssectional area of the air intakes is 1.45 6 0.03 m4 (22506 50 in.2), and that

    45、the intake areas are divided approximately equally.Fig. 1 shows dimensions for the air intakes installed in the walls. Air intakes are not permitted in either of the other two walls.6.1.5 Construct a door with wired glass and locate it as shown in Fig. 1. The door is 900 6 25 mm wide and 21006 25 mm

    46、high (35 6 1 in. by 83 6 1 in.), with an overall conductive heat flux loss no greater than that of the walls, that is, 6.8 W/(m2K)(30 Btu/h-ft2). A steel framed wired glass door will meet these requirements. Adequately seal the sides and the top of the door toprevent drafts.6.1.6 Construct a truncat

    47、ed pyramid stainless steel hood, formed as shown in Fig. 1, and locate it on top of the enclosure walls.Make the slope on each side of the hood 40. Form a seal between the hood and the walls; a compressible inorganic batting asgasket is suitable.6.1.7 Insulate the exterior of the hood to make an ove

    48、rall conductive heat loss no greater than that of the walls.6.1.8 Locate a cubical stainless steel collection box (914 6 25 mm (36 6 1 in.) per side) on top of the exhaust hood, with anominal 406 6 25 mm (16 6 1 in.) diameter stainless steel pipe exhaust duct centered in one side.6.1.9 Install the e

    49、xhaust duct horizontally and connect it to the plenum of the hood.6.1.10 Ensure that the maximum air movement within the enclosure, with only the intake and exhaust openings open, theexhaust fan on, and the burner off, does not exceed 1 m/s (3.3(3.3 ft ft/s), s), as measured by a vane-type anemometer in thefollowing areas: (1) at the floor level where the burner is positioned during the test, and (2) at 1.50 6 0.05 m (4.9 ft 6 2 in.) abovethe enclosure floor, where the cable tray is positioned during the test.6.1.11 Construct a square 6


    注意事项

    本文(ASTM D5424-2014 red 8023 Standard Test Method for Smoke Obscuration of Insulating Materials Contained in Electrical or Optical Fiber Cables When Burning in a Vertical Cable Tray Co.pdf)为本站会员(diecharacter305)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开