1、Designation: D4565 15Standard Test Methods forPhysical and Environmental Performance Properties ofInsulations and Jackets for Telecommunications Wire andCable1This standard is issued under the fixed designation D4565; the number immediately following the designation indicates the year oforiginal ado
2、ption 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 These test methods cover procedures for the physicaltesting of thermop
3、lastic insulations and jackets used on tele-communications wire and cable and the testing of physicalcharacteristics and environmental performance properties ofcompleted products. To determine the procedure to be used onthe particular insulation or jacket or on the completed wire orcable, make refer
4、ence to the specification for that product.1.2 The test methods appear in the following sections of thisstandard:Procedure SectionsDimensional measurements of insulations, jackets,miscellaneous cable components, and of completed cable 49Cross-sectional areas 9Diameters 6Eccentricity 8Thickness 7Phys
5、ical and environmental tests of insulation and jackets 1025Aging test (jackets only) 24Cold bend (insulation only) 16Environmental stress crack (polyolefin jackets only) 21Heat distortion (jackets only) 22Heat shock (jackets only) 23Insulation adhesion 19Insulation and jacket shrinkback (oven test)
6、14Insulation compression 20Insulation shrinkback (solder test) 15Melt flow rate changepolyolefin materials 12Oil immersion test (jackets only) 25Oxygen induction time (polyolefin insulation only) 17Oxygen induction time (cable filling compound only) 18Tensile and elongation tests 13Physical and envi
7、ronmental tests of insulations and jackets ofcompleted wire and cable 2642Cable Torsion Test 38Compound flow test (filled core wire and cable only) 42Corrugation extensibility test 36Cable impact test 33Jacket bonding tests 29Procedure SectionsJacket notch test 32Jacket peel or pull 28Jacket slip st
8、rength test 30Pressure test (air core wire and cable only) 40Sheath adherance test 31Water penetration test (filled core wire and cable only) 41Wire and cable bending test 34Wire breaking strength 371.3 The values stated in inch-pound units are to be regardedas standard. The values given in parenthe
9、ses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard, except where only SI units aregiven.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this
10、 standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. For specific cautionstatement see 19.1.2. Referenced Documents2.1 ASTM Standards:2D471 Test Method for Rubber PropertyEffect of LiquidsD638 Test Method for Tensile
11、 Properties of PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1248 Specification for Polyethylene Plastics ExtrusionMaterials for Wire and CableD1693 Test Method for Environmental Stress-Cracking ofEthylene PlasticsD2633 Test Methods for Thermoplastic Insulat
12、ions andJackets for Wire and CableD3032 Test Methods for Hookup Wire InsulationD4731 Specification for Hot-Application Filling Com-pounds for Telecommunications Wire and CableD4732 Specification for Cool-Application Filling Com-pounds for Telecommunications Wire and CableE29 Practice for Using Signi
13、ficant Digits in Test Data to1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and are the direct responsibility ofSubcommittee D09.18 on Solid Insulations, Non-Metallic Shieldings and Coveringsfor Electrical and Telecommunication W
14、ires and Cables.Current edition approved April 1, 2015. Published April 2015. Originallyapproved in 1986. Last previous edition approved in 2010 as D4565 10. DOI:10.1520/D4565-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org.
15、 For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Det
16、ermine Conformance with SpecificationsE171 Practice for Conditioning and Testing Flexible BarrierPackaging3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 air coreproducts in which the air spaces betweencable core components (pairs, and so forth) remain in theirunfilled or natu
17、ral state.3.1.2 armored wire or cablea wire 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.3.1.2.1 DiscussionSelect shielding or armoring
18、, or both,from a variety of materials (for example: aluminum, copper,steel). The armoring is applied in a variety of ways (forexample, helically wrapped, longitudinally applied, appliedcorrugated or smooth).3.1.3 cable, telecommunicationsproducts of six or morepair.3.1.4 DODan abbreviation for “Diam
19、eter over Dielec-tric.” This is a short term to refer to the overall diameter overan insulated conductor.3.1.5 filled corethose products in which air spaces arefilled with some materials intended to exclude air or moisture,or both.3.1.6 gopher-resistanta wire or cable that resists the attackof gophe
20、rs when installed directly buried.3.1.6.1 DiscussionTelecommunications wire and cableproducts intended for direct burial in the earth are normallyrated as either “gopher-resistant” or “non-gopher-resistant.”User selection of products for burial will depend upon theanticipated gopher protection neede
21、d for the planned installa-tion site. The gopher-resistant rating is assigned based upontest evaluations (evaluations are commonly performed by theFish and Wildlife Service, US Department of the Interior,Denver, CO).3.1.7 non-gopher-resistanta wire or cable that is notdesigned to resist gopher attac
22、k (see 3.1.6).3.1.8 pairtwo insulated conductors combined with a twist.3.1.9 sheaththe jacket and any underlying layers of shield,armor, or other intermediate material down to but not includingthe core wrap.3.1.10 shielded wire or cablea wire or cable in which thecore (or inner jacket) is completely
23、 enclosed by a metalliccovering designed to shield the core from electrostatic orelectromagnetic interference.3.1.11 wire, telecommunicationsproducts containing lessthan six pair.DIMENSIONAL MEASUREMENTS OFINSULATIONS, JACKETS, MISCELLANEOUSCABLE COMPONENTS, AND COMPLETEDCABLES4. Scope4.1 Dimensiona
24、l measurements include, but are not limitedto, measurements of insulation and jacket thicknesses, tape andarmor thicknesses, conductor diameters, DODs, corediameters, overall diameters, and so forth.5. Significance and Use5.1 Dimensional measurements, properly interpreted, pro-vide information with
25、regard to the conductors, insulation, orjacket. The dimensional measurements provide data for re-search and development, engineering design, quality control,and acceptance or rejection under specifications.6. Diameters6.1 Measure diameters of essentially round items (such asinsulated or uninsulated
26、conductors) using any type of microm-eter reading to at least 0.001 in. (0.025 mm) with each divisionof a width that facilitates estimation of each measurement to0.0001 in. (0.0025 mm). Take a minimum of two readings,essentially at right angles to each other, and average the results.6.2 In case of d
27、ispute, optical methods as described in TestMethods D3032 shall be used as the referee method.NOTE 1For insulated conductors with dual insulation (for example,foam-skin), the DOD of the inner layer must be measured using the opticalmethods of Test Methods D3032.6.3 Measure the approximate or effecti
28、ve diameters ofnon-circular cross sections (such as irregular or oval cables orcable cores) by the use of strap gauges.6.4 Precision and BiasThe precision and bias of thismethod for measuring diameters are in accordance with TestMethods D2633.7. Thicknesses7.1 Measure insulation thickness using appr
29、opriate methodsspecified in Test Methods D2633, except that the micrometeraccuracy described in 6.1 is required. A pin gauge having theaccuracy of the micrometers as specified in 6.1 is acceptablefor thickness measurements made on tubular sections ofinsulation removed from conductors. Optical method
30、s (asspecified in 6.2) are also permitted.7.2 Measure jacket thickness using appropriate methodsspecified in Test Methods D2633, except that the micrometeraccuracy specified in 6.1 is required. In determining thethickness of jackets applied over corrugated shields or armors,measurements must be made
31、 in the corrugation impressions(thinnest jacket spots). Optical methods (as specified in 6.2) arealso permitted.D4565 1527.3 Precision and BiasThe precision and bias of thismethod for measuring thickness are in accordance with TestMethods D2633.NOTE 2For designated purposes (such as process control,
32、 and soforth), continuous uniformity thickness gauges or measuring devices areemployed during processing to provide running records of jacket thick-nesses. Record charts are normally maintained for a minimum of sixmonths.8. Eccentricity8.1 Calculate eccentricity using measured thickness valuesfor in
33、sulation or jacket, or both.8.2 Calculate absolute eccentricity, Eab, of insulation orjacket, or both as follows:Eab5 Maximum Thickness! 2 Minimum Thickness! (1)8.3 Calculate percent eccentricity, E%, of insulation orjacket, or both as follows:E%5Max Thickness! 2 Min Thickness!Average Thickness!3100
34、 %! (2)8.4 Precision and BiasThe precision and bias of thismethod of measuring eccentricity are in accordance with TestMethods D2633.9. Cross-Sectional Areas9.1 When needed, determine cross-sectional areas (usuallyinsulations or jackets only) using the methods outlined in TestMethods D2633, except t
35、hat the dimensions used in thecalculations must be maintained to the accuracy specified in6.1.9.2 Precision and BiasThe precision and bias of thismethod for measuring cross-section areas are as specified inTest Methods D2633.PHYSICAL AND ENVIRONMENTAL TESTS OFINSULATIONS AND JACKETS10. Scope10.1 Phy
36、sical and environmental tests for insulations andjackets include, but are not limited to, determination of some orall of the properties covered in Sections 1225.11. Significance and Use11.1 Physical tests, properly interpreted, provide informa-tion with regard to the physical properties of the insul
37、ation orjacket. The physical test values give an approximation of howthe insulation will physically perform in its service life.Physical tests provide data for research and development,engineering design, quality control, and acceptance or rejectionunder specifications.12. Melt Flow Rate ChangePolyo
38、lefin Materials12.1 Raw Material BaselineMelt flow rate for insulationand jacket materials obtained from finished cable must becompared with the flow rates for corresponding raw materials.Determine the flow rates for the basic insulating and jacketingraw materials in accordance with the requirements
39、 of TestMethod D1238. Standard conditions of test shall be as pre-scribed by the product specification. If possible, obtain samplesof raw materials before or during the extrusion process (but notafter heating). Since insulating and jacketing raw materials arenormally obtained and used in bulk, it is
40、 usually difficult if notimpossible to relate a particular lot of raw material with aparticular reel of finished wire or cable; accordingly, averageraw materials values shall be established as necessary for anappropriate manufacturing time frame, unless otherwise agreedupon between the producer and
41、the purchaser.12.2 Insulation MaterialPerform tests on insulation re-moved from finished conductors. Note that thin wall and finegauge insulations shall be handled carefully because of en-trapped air. In the case of insulation in filled cable, thepreferred method is to obtain insulating material fro
42、m conduc-tors before they are exposed to the filling operation. Ifnecessary, conductors obtained from completed filled cableshall be wiped dry and free of grease or foreign material usinga dry cloth (without solvent). Chop the insulation, strippedfrom a conductor, as necessary to obtain specimens su
43、itable fortesting (approximately3gofmaterial is required for each test).Test the chopped material as required byTest Method D1238 todetermine a melt flow rate. Run three tests and average theresults. Standard conditions of test shall be as indicated in 12.1.12.3 Jacket MaterialJacket material used f
44、or this testmust be free of filling or flooding compound. Soft filling orflooding compounds shall be removed by thoroughly wipingthe jacket specimen using a clean dry cloth (without solvent);harder filling or flooding compounds shall be removed bycutting. Buffing is permitted to be used as a finishi
45、ng operationto ensure clean and dry specimens. Use jacketing materialremoved from completed cable for performing tests. Chop thejacket material removed from the cable as is necessary toobtain specimens suitable for testing (approximately3gofmaterial is required for each test). Test the chopped mater
46、ial asrequired by Test Method D1238 to determine a melt flow rate.Run three tests and average the results. Standard conditions oftest shall be as indicated in 12.1.12.4 CalculationCalculate the percent increase in flowrate as follows:I 5M22 M1M13100 (3)where:I = increase, %,M1= melt index of raw mat
47、erial, andM2= melt index of material from the finished cable.12.5 Precision and BiasThe precision and bias of thismethod for measuring melt-flow rate changes are basically inaccordance with Test Method D1238.13. Tensile and Elongation Tests13.1 Insulation MaterialProvide test specimens by re-moving
48、insulation from finished conductors. (See Test Speci-men section of Test Methods D2633 for methods of removingthe conductor.) Perform tests in accordance with Test MethodD638 to determine such properties as tensile strengthD4565 153(nominal), yield strength, and percentage elongation at break.The sp
49、eed of testing shall be as prescribed by the productspecifications.13.2 Jacket MaterialProvide test specimens by die cuttingjacket segments removed (cut) from finished cable. Performtesting in accordance with Test Method D638 to determinesuch properties as tensile strength (nominal), yield strength andpercentage elongation at break. The speed of testing shall be asprescribed in the product specifications.13.3 Precision and BiasThe precision and bias of thesemethods for measuring tensile and elongation properties ofinsulations and jackets ar
