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 D4246-2014 Standard Specification for Ozone-Resistant Thermoplastic Elastomer Insulation For Wire and Cable 90&deg C Operation《工作温度为90 ℃的电线和电缆的耐臭氧热塑性弹性体绝缘的标准规格》.pdf

    • 资源ID:516631       资源大小:56.74KB        全文页数:3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 D4246-2014 Standard Specification for Ozone-Resistant Thermoplastic Elastomer Insulation For Wire and Cable 90&deg C Operation《工作温度为90 ℃的电线和电缆的耐臭氧热塑性弹性体绝缘的标准规格》.pdf

    1、Designation: D4246 02 (Reapproved 2010)D4246 14Standard Specification forOzone-Resistant Thermoplastic Elastomer Insulation ForWire and Cable, 90 C 90C Operation1This standard is issued under the fixed designation D4246; the number immediately following the designation indicates the year oforiginal

    2、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 Scope*1.1 This specification covers an ozone-resistant insulating compo

    3、und for electrical wire and cables 14 AWG and larger. Thiscompound consists substantially of a thermoplastic elastomer.1.2 This type of insulation is considered suitable for continuous operation at conductor temperatures not exceeding 90 C 90Cin dry locations. Operating voltages are not to exceed 20

    4、00 V. The minimum installation temperature is 40 C.is -40C.1.3 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those inparentheses are for information only.1.4 In many instances the insulation material cannot be tested unless it has

    5、been formed around a conductor or cable. Therefore,tests are done on insulated wire or cable in this specification solely to determine the relevant property of the insulation materialand not to test the conductor or completed cable.2. Referenced Documents2.1 ASTM Standards:2D470 Test Methods for Cro

    6、sslinked Insulations and Jackets for Wire and CableD1711 Terminology Relating to Electrical InsulationD2633 Test Methods for Thermoplastic Insulations and Jackets for Wire and Cable3. Terminology3.1 Definitions: DefinitionsFor definitions of terms used in this specification refer to Terminology D171

    7、1.3.2 Definitions of Terms Specific to This Standard:3.2.1 aging (act of), nthe exposure of materials to air at 121 C 121C for 168 h.4. Physical Properties4.1 Requirements for physical properties are listed in Table 1.4.2 Thickness of InsulationTable 1(a), (Conductor Sizes, Insulation Thicknesses, a

    8、nd AC Test Voltages for RubberInsulations) of Test Methods D470 lists the minimum average thickness for the insulation. The required minimum thickness is90 % of the specified average thickness.5. Electrical Requirements5.1 Order of TestingPerform the ac voltage, insulation resistance, and dc voltage

    9、 tests in that order when any of these testsare specified. The sequence of other testing is not specified.5.2 AC Voltage TestUnless otherwise specified, omit this test if the dc voltage test described in 5.4 is to be performed. Testeach insulated conductor for 5 min at the ac voltage given in Table

    10、1(a) (Conductor Sizes, Insulation Thicknesses, and AC TestVoltages, for Rubber Insulations) of Methods D470, under the columns labelledlabeled “Ozone-Resisting Insulations.”1 This specification is under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and is t

    11、he direct responsibility of SubcommitteeD09.18 on Solid Insulations, Non-Metallic Shieldings and Coverings for Electrical and Telecommunication Wires and Cables.Current edition approved March 1, 2010Nov. 1, 2014. Published August 2010November 2014. Originally approved in 1983. Last previous edition

    12、approved in 20022010as D4246D4246 02 (2010).02. DOI: 10.1520/D4246-02R10.10.1520/D4246-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summ

    13、ary 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 previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends

    14、 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 Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, We

    15、st Conshohocken, PA 19428-2959. United States15.3 Insulation ResistanceThe insulated conductor shall have an insulation resistance value of at least that corresponding toa constant of 10 000 at 60 F (15.6 C).60F (15.6C).5.3.1 If the water temperature at the time measurement was made differs from 60

    16、F (15.6 C), 60F (15.6C), correct theinsulation resistance to 60 F. 60F. Table 2,2 (Temperature Correction Factors for Insulation Resistance at 60 F) 60F) of TestMethods D470 contains the correction factors. Each insulation manufacturer can furnish the 1F coefficient for the insulationmaterial by usi

    17、ng the procedure given in Test Methods D470. Multiply the measured value by the correction factor to obtain theinsulation resistance value corrected to 60F.5.3.2 If the insulated conductor is covered with a non-metallic sheath so that the insulation resistance can be measured only onthe completed as

    18、sembly, the required insulation resistance shall be at least 60 % of that required for the primary insulation basedon the thickness of that insulation.5.4 DC Voltage TestUnless otherwise specified, omit this test if the ac voltage test described in 5.2 has been performed. Aftercompletion of the insu

    19、lation resistance test, test each insulated conductor for 5 min at the dc test voltage given in Table number1(b) (Conductor Sizes, and DC Test Voltages for Rubber Insulations) of Test Methods D470, under the columns labelledlabeled“Ozone-Resisting Insulations.”6. Cold Bend6.1 The insulation shall no

    20、t show any cracks when tested at a temperature of 55 C of -55C, in accordance with the procedureand Table 7 (Mandrel Diameters for Cold Bend Test) in Test Methods D470.7. Ozone7.1 The insulation shall show no cracking or surface checking visible to the unaided eye after exposure to an ozoneconcentra

    21、tion of not less than 0.0250.025, nor more than 0.030 % by volume, when tested in accordance with Test Methods D470.8. Heat Distortion8.1 The insulation shall meet the requirements in Table 1 when tested in accordance with the procedure in Methods D2633.9. Sampling9.1 Unless otherwise instructed, sa

    22、mple the insulation in accordance with Test Methods D470.10. Test Methods10.1 Unless otherwise instructed, test the insulation in accordance with Test Methods D470.11. Keywords11.1 90C insulation; ac voltage test; dc voltage test; insulation; insulation resistance; 90 C insulation; ozone-resistant;t

    23、hermoplastic elastomer; thermoplasatic elastomer insulationTABLE 1 Requirements for Physical PropertiesUnaged Requirements:Tensile strength, min, psi (MPa) 1000 (6.9)Elongation at rupture, min, % 300Aged Requirements(after air oven test at121 1 C for 168 h):Aged Requirements(after air oven test at12

    24、1 1C for 168 h):Tensile strength and elongation, at rupture min, % ofunaged value75Heat Distortion (at 150 1 C, max, % of unaged value):Heat Distortion (at 150 1C, max, % of unaged value):4/0 AWG (107 m2) and smaller (insulation on cable) 50Larger than 4/0 AWG (107 mm2) (buffed sample ofinsulation)5

    25、0Larger than 4/0 AWG (107 mm2) (buffed, planed, or skivedsample ofinsulation)50D4246 142SUMMARY OF CHANGESCommittee D09 has identified the location of selected changes to this standard since the last issue (D4246 02(2010) that may impact the use of this standard. (Approved Nov. 1, 2014.)(1) Revised

    26、Table 1.(2) Revised 5.2.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringe

    27、ment of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or

    28、 for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views kn

    29、own to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting AS

    30、TM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 143


    注意事项

    本文(ASTM D4246-2014 Standard Specification for Ozone-Resistant Thermoplastic Elastomer Insulation For Wire and Cable 90&deg C Operation《工作温度为90 ℃的电线和电缆的耐臭氧热塑性弹性体绝缘的标准规格》.pdf)为本站会员(Iclinic170)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