ASTM D4566-2005e1 Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable《远程通信电线和电缆用绝缘体和套管的电气性能特性的标准试验方法》.pdf
《ASTM D4566-2005e1 Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable《远程通信电线和电缆用绝缘体和套管的电气性能特性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D4566-2005e1 Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable《远程通信电线和电缆用绝缘体和套管的电气性能特性的标准试验方法》.pdf(29页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 4566 05e1An American National StandardStandard Test Methods forElectrical Performance Properties of Insulations andJackets for Telecommunications Wire and Cable1This standard is issued under the fixed designation D 4566; the number immediately following the designation indicates the y
2、ear 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 (e) indicates an editorial change since the last revision or reapproval.e1NOTEChanges were made to improve the layout and clarity of equ
3、ations throughout October 2005.1. Scope1.1 These test methods cover procedures for electricaltesting of thermoplastic insulations and jackets used on tele-communications wire and cable and for the testing of electricalcharacteristics of completed products. To determine the proce-dure to be used on t
4、he particular insulation or jacket com-pound, or on the end product, reference should be made to thespecification for the product.1.2 The test methods appear in the following sections of thisstandard:Test Method SectionsElectrical Tests of InsulationIn-Process 4-8DC proof test 8Insulation defect or
5、fault rate 7Spark test 6Electrical Tests of Completed Wire and Cable 9-51Attenuation 24Attenuation, effects due to aging 31Attenuation, effects due to elevated temperature 29Attenuation, effects due to humidity 30Attenuation to crosstalk ratiofar end (ACR-F) 28Attenuation to crosstalk rationear end
6、(ACR-N) 26Capacitance deviation 19Capacitance difference 20Capacitance unbalance, Pair-to-ground (CUPG) 22Capacitance unbalance, Pair-to-pair (CUPP) 21Capacitance unbalance, Pair-to-support wire 23Characteristic ImpedanceMethod 1 Propagation constantand capacitance47Characteristic ImpedanceMethod 2,
7、 Single-endedmeasurements48Characteristic ImpedanceMethod 3 Least Squares Function Fit 49Coaxial capacitance (capacitance to water) 17Conductor continuity 11Conductor resistance (CR) 13Conductor resistance unbalance (CRU of pairs) 15Continuity of other metallic elements 12Crosses test (continuity be
8、tween wires of different pairs) 35Crosstalk loss, far-end 27Crosstalk loss, near-end 25DC proof test, Core-to-internal shield (screen) 40DC proof test, Core-to-shield 38Test Method SectionsDC proof test, Core-to-support wire 39DC proof test, Internal shield (screen)-to-shield 41DC proof test, Other
9、required isolations 42DC proof test, Wire-to-wire 37Fault rate test (air core only) 33Insulation resistance (IR) 32Jacket voltage breakdown rating test 36Mutual capacitance (CM) 18Mutual conductance 16Phase Constant 44Phase Delay 45Phase Velocity 46Resistance of other metallic cable elements 14Short
10、s test (continuity between wires of a pair) 34Structural Return Loss and Return Loss 50Unbalance attenuation (conversion losses) 51Voltage surge test 431.3 The values stated in inch-pound units are to be regardedas the standard. SI units are for information only.1.4 This standard does not purport to
11、 address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. Specific hazardstatements are given in Sections 6 a
12、nd 37.2. Referenced Documents2.1 ASTM Standards:2B 193 Test Method for Resistivity of Electrical ConductorMaterialsD 150 Test Methods for A-C Loss Characteristics andPermittivity (Dielectric Constant) of Solid Electrical Insu-lating MaterialsD 1711 Terminology Relating to Electrical InsulationD 2633
13、 Test Methods for Thermoplastic Insulations andJackets for Wire and CableD 3426 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating MaterialsUsing Impulse Waves1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and Electro
14、nic Insulating Materials and are the direct responsibility ofSubcommittee D09.18 on Solid Insulations, Non-Metallic Shieldings, and Cover-ings for Electrical and Telecommunications Wires and Cables.Current edition approved March 1, 2005. Published April 2005. Originallyapproved in 1986. Last previou
15、s edition approved in 1998 as D 4566 98.2For referenced ASTM standards, 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.1Copyright ASTM Inter
16、national, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 5423 Specification for Forced-Convection laboratory Ov-ens for Evaluations of Electrical InsulationE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ANS
17、I Standard:ANSI/IEEE Standard 100 IEEE Standard Dictionary ofElectrical and Electronics Terms32.3 IEC Standard:IEC 61156-1 Multicore and Symmetrical Pair/Quad Cablesfor Digital CommunicationsPart 1: Generic Specifica-tion32.4 ITU-T Standard:ITU-T Recommendation G117 Transmission Aspects ofUnbalance
18、About Earth33. Terminology3.1 DefinitionsFor definitions of terms used in this stan-dard, refer to Terminology D 1711.3.2 Definitions of Terms Specific to This Standard:3.2.1 air core, nrefers to products in which the air spacesbetween cable core components (pairs, etc.) remain in theirunfilled or n
19、atural state.3.2.2 armored wire or cable, nwire or cable in which theshielded or jacketed or shielded and jacketed wire or cable iscompletely enclosed by a metallic covering designed to protectthe underlying telecommunications elements from mechanicaldamage.3.2.3 cable, telecommunications, nproducts
20、 of six ormore pairs.3.2.4 filled core, nthose products in which air spaces arefilled with some materials intended to exclude air or moisture,or both.3.2.5 low frequency cable, ncable used for transmittingsignals at a frequency of 2 MHz or less.3.2.6 pair, ntwo insulated conductors combined with atw
21、ist.3.2.7 sheath, nthe jacket and any underlying layers ofshield, armor, or other intermediate material down to but notincluding the core wrap.3.2.8 shielded wire or cable, nwire or cable in which thecore (or inner jacket) is completely enclosed by a metalliccovering designed to shield the core from
22、 electrostatic orelectromagnetic interference, or both.3.2.9 wire, telecommunications, nproducts containingless than six pairs.ELECTRICAL TESTS OF INSULATIONIN-PROCESS4. Scope4.1 In-process electrical tests are used primarily as processcontrol tools in an attempt to minimize the number andmagnitude
23、of problems detected at final test of completedcable.5. Significance and Use5.1 Electrical tests, properly interpreted, provide informa-tion with regard to the electrical properties of the insulation.The electrical test values give an indication as to how theinsulation will perform under conditions
24、similar to thoseobserved in the tests. Electrical tests may provide data forresearch and development, engineering design, quality control,and acceptance or rejection under specifications.6. Spark Test6.1 The spark test is intended to detect defects in theinsulation of insulated wire conductors. Spar
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