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

    DLA MIL-DTL-55021 D-2011 CABLE ELECTRICAL SHIELDED SINGLES SHIELDED AND JACKETED SINGLES TWISTED PAIRS AND TRIPLES INTERNAL HOOKUP GENERAL SPECIFICATION FOR.pdf

    • 资源ID:690966       资源大小:92.88KB        全文页数:15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。

    DLA MIL-DTL-55021 D-2011 CABLE ELECTRICAL SHIELDED SINGLES SHIELDED AND JACKETED SINGLES TWISTED PAIRS AND TRIPLES INTERNAL HOOKUP GENERAL SPECIFICATION FOR.pdf

    1、 Comments, suggestions, or questions on this document should be addressed to DLA Land and Maritime, ATTN: VAI, P.O. Box 3990, Columbus, OH 43218-3990, or email to WireCabledla.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST

    2、Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 6145 INCH-POUND MIL-DTL-55021D 18 July 2011 SUPERSEDING MIL-DTL-55021C 11 August 2000 DETAIL SPECIFICATION CABLE, ELECTRICAL, SHIELDED SINGLES, SHIELDED AND JACKETED SINGLES, TWISTED PAIRS AND TRIPLES, INTERNAL HOOKUP, GENERAL SPECIFICATION

    3、 FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers electrical cables consisting of unshielded and unjacketed, shielded, jacketed, or shielded and jacketed twisted pairs and triples, and shielded or s

    4、hielded and jacketed singles. The cable is intended for internal wiring of electrical equipment for application temperatures of -40 to 105 degrees Centigrade (C), or -65 to 200 C. Cables constructed with polyvinyl chloride (PVC) - insulated wires or jackets are not to be used for aerospace applicati

    5、ons. 1.2 Classification. 1.2.1 Type designation. The type designation of cable consists of the following form, and as specified (see 6.2): B 24 C 904 - 903 - 902 P Covering over component Color of Color of Color of wire(s) (see 1.2.1.5) 1st wire 2nd wire 3rd wire (see 1.2.1.4) (see 1.2.1.4) (see 1.2

    6、.1.4) Conductor material (see 1.2.1.3) Conductor size (see 1.2.1.2) Wire type (see 1.2.1.1) Type designation example: B24C904-903-902P (MIL-DTL-16878/1 type wire; 24 AWG conductor size; copper material; 1st wire white base color, black first stripe, yellow second stripe; 2nd wire white base color, b

    7、lack first stripe, orange second stripe; 3rd wire white base color, black first stripe, red second stripe; covered with polyvinyl chloride jacket). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-55021D 2 1.2.1.1 Type of wire. The type of wir

    8、e is identified by a one- or two-letter symbol as specified in table I. TABLE I. Type of wire. Symbol type Wire specification 1/B C D E EE BJ CJ DJ MIL-DTL-16878/1 MIL-DTL-16878/2 MIL-DTL-16878/3 NEMA HP 3 NEMA HP 3 MIL-DTL-16878/17 MIL-DTL-16878/18 MIL-DTL-16878/19 1/ MIL-DTL-16878 wire with PVC in

    9、sulation should not be used for aerospace applications. 1.2.1.2 Conductor size. The conductor size is identified by a one- or two-digit number that indicates the American Wire Gauge (AWG) size. 1.2.1.3 Conductor material. The conductor material is identified by the letter “C” for copper, the letter

    10、“S” for copper clad steel, or the letter “H” for high strength copper alloy. 1.2.1.4 Color code. The color code of each individual wire is identified by a number built up from the digits designating the colors as specified in 3.5.1. For single shielded and single shielded and jacketed constructions,

    11、 a dash should not be used. The color code designators for wires 2 and 3 of a twisted pair and triplet are separated by a dash. Two groups of numbers indicate a twisted pair, three groups indicate a twisted triple. Any order of color code designators is acceptable. 1.2.1.5 Construction of covering o

    12、ver the finished cable. The covering of the finished cable is identified by a one-, two-, or three-letter symbol as specified in table II. TABLE II. Finished cable covering nomenclature. Symbol 1/Covering over finished cable 2/U Unjacketed and unshielded P Polyvinyl chloride (PVC) jacket FFluorinate

    13、d ethylene propylene (FEP) jacket JPolyamide jacket TPolytetrafluoroethylene (PTFE) jacket SShielded and unjacketed SFShielded and covered with FEP jacket SPShielded and covered with PVC jacket SJShielded and covered with Polyamide jacket STWShielded and covered with wrapped PTFE jacket STXShielded

    14、and covered with extruded PTFE jacket 1/ All single conductor constructions must include shielding; jacketing is optional. 2/ PVC insulated cable should not be used for aerospace applications. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-5

    15、5021D 3 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every ef

    16、fort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and hand

    17、books. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FEDERAL STANDARD FED-STD-228 - Cable and Wire, Insulated; Methods of T

    18、esting DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-C-572 - Cords, Yarns and Monofilaments Organic Synthetic Fiber MIL-DTL-16878 - Wire, Electrical, Insulated, General Specification for MIL-DTL-16878/1 - Wire, Electrical, Polyvinyl Chloride (PVC) Insulated, 105 Deg. C, 600 Volts (Not for Navy Shipboard

    19、Use) MIL-DTL-16878/2 - Wire, Electrical, Polyvinyl Chloride (PVC) Insulated, 105 Deb. C, 1000 Volts (Not for Navy Shipboard Use) MIL-DTL-16878/3 - Wire, Electrical, Polyvinyl Chloride (PVC) Insulated, 105 Deg. C, 3000 Volts (Not for Navy Shipboard Use) MIL-DTL-16878/17 - Wire, Electrical, Polyvinyl

    20、Chloride (PVC) Insulated, Polyamide Jacket, 105 Deg. C, 600 Volts (Not for Navy Shipboard Use) MIL-DTL-16878/18 - Wire, Electrical, Polyvinyl Chloride (PVC) Insulated, Polyamide Jacket, 105 Deg. C, 1000 Volts, (Not for Navy Shipboard Use) MIL-DTL-16878/19 - Wire, Electrical, Polyvinyl Chloride (PVC)

    21、 Insulated, 105 Deg. C, 3000 Volts, Polyamide Covering (Not for Navy Shipboard Use) MIL-DTL-55021/1 - Cable, Electrical, Shielded Singles, Shielded and Jacketed Singles, Twisted Pairs and Triples, Internal Hookup, -40 to 105 C MIL-DTL-55021/2 - Cable, Electrical, Shielded Singles, Shielded and Jacke

    22、ted Singles, Twisted Pairs and Triples, Internal Hookup, -65 to 200 C DEPARTMENT OF DEFENSE STANDARD MIL-STD-681 - Identification Coding and Application of Hookup and Lead Wire (Copies of these documents are available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Docu

    23、ment Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-55021D 4 2.3 Non-Government publications. The following documents form a part of this document to the extent speci

    24、fied herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. ASTM INTERNATIONAL ASTM D3032 - Standard Test Methods for Hookup Wire Insulation ASTM D4066 - Standard Classification System for Nylon Injection and Extrusion Materials (Copies of

    25、these documents are available online from http:/ww w.astm.org or from the ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA) NEMA HP 3 - Electrical and Electronic PTFE (Polytetrafluoroethylene) Insulated H

    26、igh Temperature Hook-up Wire; Types ET (250 Volts), E (600 Volts), and EE (1000 Volts) (Application for copies should be addressed to the National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209.) 2.4 Order of precedence. Unless otherwise noted herein or i

    27、n the contract, in the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemptio

    28、n has been obtained. 3. REQUIREMENTS 3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter

    29、shall govern. 3.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.4. 3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum exte

    30、nt possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.4 Materials. Materials shall be as specified herein. When a material is not specified, a material shall be used that will enable the cable

    31、 to meet the performance requirements of this specification. 3.4.1 Basic wire. All basic wires used in the construction of the cable shall be of the same type (see 1.2.1.1). All basic wires shall conform to either MIL-DTL-16878 or NEMA HP 3. 3.4.2 Shielding. When shielding is specified, the cable sh

    32、ield strand size shall be based on the cable core outside diameter and as specified in table III. The cable core outside diameter shall be based on the basic wire diameter multiplied by 1.0 for singles, 1.64 for pairs, and 1.95 for triples. The metallic coating of the copper strands of the shield sh

    33、all be the same as the metallic coating of the conductor of the basic wire. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-55021D 5 TABLE III. Cable shield strand size. Cable core outside diameter Shield strand size .060 inch or smaller 38 A

    34、WG .061 to .310 inch 36 AWG .311 to .750 inch 34 AWG .751 inch or larger 32 AWG 3.4.2.1 Braid angle and shield coverage. Braid angle and shield coverage shall be as specified in the applicable specification sheet. 3.4.3 Cable jacket. When jacketing is specified, the cable jacket shall be as specifie

    35、d herein or in the applicable specification sheet. 3.5 Design and construction. 3.5.1 Color coding. Unless otherwise specified (see 6.2), color coding of individual wires and jackets shall be in accordance with MIL-STD-681. 3.5.2 Wire twist (twisted pairs and triples). The basic wires shall be group

    36、ed together and cabled so that the individual wire is not twisted and a minimum overall diameter is obtained. Unless otherwise specified in the contract or order (see 6.2), fillers shall not be used. 3.5.2.1 Direction of lay. The direction of lay may be left hand or right hand. 3.5.2.2 Length of lay

    37、. The length of lay shall be as specified in the applicable specification sheet. 3.5.3 Covering over finished cable. 3.5.3.1 Shield. When a shield is specified in the cable construction (see 1.2.1.5), it shall be applied over the wire(s) as specified herein or in the applicable specification sheet.

    38、3.5.3.2 Jacket. When a jacket is specified in the cable construction (see 1.2.1.5), it shall be applied over the shielded or unshielded construction as specified herein or in the applicable specification sheet. 3.5.3.3 Jacket material. 3.5.3.3.1 Polyamide. Polyamide jackets shall be applied concentr

    39、ically and shall have a wall thickness as specified in the applicable specification sheet. Polyamide material shall conform to ASTM D4066, type PA 622, grade E 22, or to MIL-C-572. 3.5.3.3.2 Polyvinyl chloride (PVC). PVC jackets shall have a wall thickness as specified in the applicable specificatio

    40、n sheet. The tensile strength and elongation of the jacket shall be 1,800 psi minimum and 150 percent minimum, respectively. 3.5.3.3.3 Fluorinated ethylene propylene (FEP). FEP jackets shall have a wall thickness as specified in the applicable specification sheet. The tensile strength and elongation

    41、 of the jacket shall be 3,000 psi minimum and 200 percent minimum, respectively. 3.5.3.3.4 Extruded or taped polytetrafluoroethylene (PTFE). Extruded or taped PTFE jackets shall have a wall thickness as specified in the applicable specification sheet. The tensile strength and elongation of the jacke

    42、t shall be 3,000 psi minimum and 150 percent minimum, respectively. 3.6 Performance. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-55021D 6 3.6.1 Dielectric strength. 3.6.1.1 Unshielded cable. The unshielded cable shall withstand the applic

    43、able voltage specified in table IV for not less than 1 minute without breakdown. 3.6.1.2 Shielded cable. The shielded cable shall withstand the applicable voltage specified in table IV for not less than 1 minute without breakdown. 3.6.2 Cold bend. 3.6.2.1 Unshielded cable. Unless otherwise specified

    44、 in the contract or order (see 6.2), cold bend requirements are not applicable for unshielded cable constructions. TABLE IV. Dielectric strength voltage. Type of wire Basic wire spec Conductor size Volts (rms) B however, final acceptance and shipment shall be withheld until group B inspection has sh

    45、own that the corrective action was successful. In the event of failure after re-inspection, information concerning the failure shall be provided to the cognizant inspection activity. 4.6 Methods of inspection. 4.6.1 Visual and mechanical inspection. Cable, components, and wire shall be subjected to

    46、a thorough visual and mechanical inspection to ascertain that the materials, construction, workmanship, marking, colors, dimensions, and lengths are in accordance with the applicable requirements. 4.6.2 Dielectric strength. 4.6.2.1 Unshielded cable. The unshielded cable dielectric strength test shal

    47、l be conducted in accordance with method 6111 of FED-STD-228 between each conductor and other conductors at the applicable voltage specified in table IV. The minimum immersion period is 4 hours for unshielded/unjacketed cables. Immersion is not required for jacketed cables. 4.6.2.2 Shielded cable. T

    48、he shielded cable dielectric strength test shall be conducted in accordance with method 6111 of FED-STD-228. The applicable test voltage (see table IV) shall be applied between the conductor and shield for singles and between each conductor and the other conductors and shield in common for pairs and

    49、 triples. Immersion is not required. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-55021D 10 4.6.3 Cold bend. Specimens of the finished cable shall have each conductor stripped, approximately 1 inch at each end, to the bare conductor and shall have one end attached to a mandrel and the other end weighted. After conditioning for 4 hours at a temperature o


    注意事项

    本文(DLA MIL-DTL-55021 D-2011 CABLE ELECTRICAL SHIELDED SINGLES SHIELDED AND JACKETED SINGLES TWISTED PAIRS AND TRIPLES INTERNAL HOOKUP GENERAL SPECIFICATION FOR.pdf)为本站会员(tireattitude366)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