ASTM D4566 - 20

    Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable

    Active Standard ASTM D4566 | Developed by Subcommittee: D09.07

    Book of Standards Volume: 10.02


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    Significance and Use

    6.1 Electrical tests, properly interpreted, provide information with regard to the electrical properties of the insulation. The electrical test values give an indication as to how the insulation will perform under conditions similar to those observed in the tests. Electrical tests provide data for research and development, engineering design, quality control, and acceptance or rejection under specifications.

    1. Scope

    1.1 These test methods cover procedures for electrical testing of thermoplastic insulations and jackets used on telecommunications wire and cable and for the testing of electrical characteristics of completed products. To determine the procedure to be used on the particular insulation or jacket compound, or on the end product, reference should be made to the specification for the product.

    1.2 These test methods appear in the following sections of this standard:

    Test Method

    Sections

    Electrical Tests of Insulation—In-process

    5 – 9

         DC proof test

    9

         Insulation Defect or Fault Rate

    8

         Spark Test

    7

    Electrical Tests of Completed Wire and Cable

    10 – 52

         Attenuation

    25

         Attenuation, Effects Due to Aging

    32

         Attenuation, Effects Due to Elevated Temperature

    30

         Attenuation, Effects Due to Humidity

    31

         Attenuation to Crosstalk Ratio—Far End (ACR-F)

    29

         Attenuation to Crosstalk Ratio—Near End (ACR-N)

    27

         Capacitance Deviation

    20

         Capacitance Difference

    21

         Capacitance Unbalance, Pair-to-ground (CUPG)

    23

         Capacitance Unbalance, Pair-to-pair (CUPP)

    22

         Capacitance Unbalance, Pair-to-support Wire

    24

         Characteristic Impedance—Test Method 1: Propagation Constant and Capacitance

    48

         Characteristic Impedance—Test Method 2: Single-ended Measurements

    49

         Characteristic Impedance—Test Method 3: Least Squares Function Fit

    50

         Coaxial Capacitance (Capacitance to Water)

    18

         Conductor Continuity

    12

         Conductor Resistance (CR)

    14

         Conductor Resistance Unbalance (CRU of Pairs)

    16

         Continuity of Other Metallic Elements

    13

         Crosses Test (Continuity Between Wires of Different Pairs)

    36

         Crosstalk Loss, Far-end

    28

         Crosstalk Loss, Near-end

    26

         DC Proof Test, Core-to-internal Shield (Screen)

    41

         DC Proof Test, Core-to-shield

    39

         DC Proof Test, Core-to-support Wire

    40

         DC Proof Test, Internal Shield (Screen)-to-shield

    42

         DC Proof Test, Other Required Isolations

    43

         DC Proof Test, Wire-to-wire

    38

         Fault Rate Test (Air Core Only)

    34

         Insulation Resistance (IR)

    33

         Jacket Voltage Breakdown Rating Test

    37

         Mutual Capacitance (CM)

    19

         Mutual Conductance

    17

         Phase Constant

    45

         Phase Delay

    46

         Phase Velocity

    47

         Resistance of Other Metallic Cable Elements

    15

         Shorts Test (Continuity Between Wires of a Pair)

    35

         Structural Return Loss and Return Loss

    51

         Unbalance Attenuation (Conversion Losses)

    52

         Voltage Surge Test

    44

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Sections 7 and 38.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B193 Test Method for Resistivity of Electrical Conductor Materials

    D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

    D1711 Terminology Relating to Electrical Insulation

    D2633 Test Methods for Thermoplastic Insulations and Jackets for Wire and Cable

    D3426 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials Using Impulse Waves

    D5423 Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    ANSI Standard

    ANSI/IEEE Standard 100 IEEE Standard Dictionary of Electrical and Electronics Terms Available from Global Engineering Documents, 15 Inverness Way, East Englewood, CO 80112-5704, http://www.global.ihs.com.

    IEC Standard

    IEC 61156-1 Multicore and Symmetrical Pair/Quad Cables for Digital CommunicationsPart 1: Generic Specification


    ICS Code

    ICS Number Code 29.035.01 (Insulating materials in general)

    UNSPSC Code

    UNSPSC Code 26121616(Telecommunications cable)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D4566-20

    Citation Format

    ASTM D4566-20, Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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