ASTM D1050-2005(2017) Standard Specification for Rubber Insulating Line Hose《橡胶绝缘活线线套的标准规格》.pdf
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1、Designation: D1050 05 (Reapproved 2017)Standard Specification forRubber Insulating Line Hose1This standard is issued under the fixed designation D1050; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification covers acceptance testing of rub
3、berinsulating line hose for use as a portable protective device forprotection of workers from accidental contact with live elec-trical conductors.1.2 Two types of line hose are provided and are designatedas Type I, non-resistant to ozone, and Type II and Type III,resistant to ozone.1.3 Five classes
4、of line hose, differing in electricalcharacteristics, are provided and are designated as Class 0,Class 1, Class 2, Class 3, and Class 4.1.4 Four styles of line hose, differing in designcharacteristics, are provided and are designated as Style A,Style B, Style C, and Style D.1.5 The following precaut
5、ionary caveat pertains only to thetest method portion, Sections 16, 17, 18, 19, of this specifica-tion: This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety,health, a
6、nd environmental practices and determine the appli-cability of regulatory limitations prior to use. For specificprecautionary statements, see 18.1.1.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision
7、 on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D297 Test Methods for Rubber ProductsChemical Analy-sisD412 Test Methods for Vulcaniz
8、ed Rubber and Thermoplas-tic ElastomersTensionD570 Test Method for Water Absorption of PlasticsD573 Test Method for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD2865 Practice for Calibration of Standards and Equip
9、mentfor Electrical Insulating Materials TestingF819 Terminology Relating to Electrical Protective Equip-ment for Workers2.2 Federal Specification:3PPP-B-636 Box, Shipping, Filterboard2.3 ANSI Standards:4C2National Electrical Safety Code, Section 44C 39.5 Safety Requirements for Electrical and Electr
10、onicMeasuring and Controlling InstrumentationC 84.1 Electric Power Systems and Equipment-VoltageRatings3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 breakdownthe electrical discharge or arc occurringbetween the electrodes and through the equipment being tested.3.1.2 flashove
11、rthe electrical discharge or arc occurringbetween electrodes and over or around, but not through, theequipment being tested.3.1.3 electrical testing facilitya location with qualifiedpersonnel, testing equipment, and procedures for the inspectionand electrical testing of electrical insulating protect
12、ive equip-ment.3.1.4 electrode clearancethe shortest path from the ener-gized electrode to the ground electrode.1This specification is under the jurisdiction of ASTM Committee F18 onElectrical Protective Equipment for Workers and is the direct responsibility ofSubcommittee F18.25 on Insulating Cover
13、-Up Equipment. This standard replacesANSI Standard J 6.1, which is no longer availableCurrent edition approved Dec. 15, 2017. Published December 2017. Originallyapproved in 1949 as D1050 49 T. Last previous edition approved in 2011 asD1050 05(2011). DOI: 10.1520/D1050-05R17.2For referenced ASTM stan
14、dards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents, Order Desk, Bldg. 4, Section D,700 Robbins
15、Ave., Philadelphia, PA 19111-5094, ATTN: NPODS.4Available from American National Standards Institute, 11 West 42nd Street,13th Floor, New York, NY 10036.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was de
16、veloped in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.1.5 insulateds
17、eparated from other conducting surfacesby a dielectric substance (including air space) offering a highresistance to the passage of current.NOTE 1When any object is said to be insulated, it is understood to beinsulated in a suitable manner for the conditions to which it is subjected.Otherwise, it is,
18、 within the purpose of this definition, uninsulated.Insulating covering of conductors is one means of making the conductorinsulated.3.1.6 isolatedan object that is not readily accessible topersons unless special means of access are used.3.1.7 ozonea very active form of oxygen that may beproduced by
19、corona, arcing, or ultra-violet rays.3.1.8 ozone cutting and checkingthe cutting action pro-duced by ozone on rubber under mechanical stress into a seriesof interlacing cracks.3.1.9 rubbera generic term that includes elastomers andelastomeric compounds, regardless of origin.3.1.10 voltage, maximum u
20、sethe ac voltage (rms) rating ofthe protective equipment that designates the maximum nominaldesign voltage of the energized system that may be safelyworked. The nominal design voltage is equal to the phase tophase voltage on multiphase circuits.3.1.11 If there is not multiphase exposure in a system
21、areaand the voltage exposure is limited to phase (polarity on dcsystems) to ground potential, the phase (polarity on dc sys-tems) to ground potential shall be considered to be the nominaldesign voltage. If electrical equipment and devices areinsulated, or isolated, or both, such that the multiphase
22、expo-sure on a grounded wye circuit is removed, then the nominaldesign voltage may be considered as the phase-to-groundvoltage on that circuit.NOTE 2The work practices and methods associated with removingmultiphase exposures at any given work site are not addressed in thisspecification. Users should
23、 refer to ANSI C2, National Safety Code,Section 44, for proper work practices.3.1.12 voltage, nominal designa nominal value consistentwith the latest revision on ANSI C 84.1, assigned to the circuitor system for the purpose of conveniently designating itsvoltage class.3.2 For definitions of other te
24、rms, refer to TerminologyF819.4. Significance and Use4.1 This specification covers the minimum electrical,chemical, and physical properties guaranteed by the manufac-turer and the detailed procedures by which such properties areto be determined. The purchaser may at his option perform orhave perform
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