ASTM D4566-20
(Test Method)Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable
Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable
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.
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 T...
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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.
Designation: D4566 − 20
Standard Test Methods for
Electrical Performance Properties of Insulations and
1
Jackets for Telecommunications Wire and Cable
This standard is issued under the fixed designation D4566; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
DC Proof Test, Internal Shield (Screen)-to-shield 42
DC Proof Test, Other Required Isolations 43
1.1 These test methods cover procedures for electrical
DC Proof Test, Wire-to-wire 38
testing of thermoplastic insulations and jackets used on tele- Fault Rate Test (Air Core Only) 34
Insulation Resistance (IR) 33
communicationswireandcableandforthetestingofelectrical
Jacket Voltage Breakdown Rating Test 37
characteristics of completed products. To determine the proce-
Mutual Capacitance (CM) 19
dure to be used on the particular insulation or jacket Mutual Conductance 17
Phase Constant 45
compound, or on the end product, reference should be made to
Phase Delay 46
the specification for the product.
Phase Velocity 47
Resistance of Other Metallic Cable Elements 15
1.2 These test methods appear in the following sections of
Shorts Test (Continuity Between Wires of a Pair) 35
this standard:
Structural Return Loss and Return Loss 51
Unbalance Attenuation (Conversion Losses) 52
Test Method Sections
Voltage Surge Test 44
Electrical Tests of Insulation—In-process 5–9
DC proof test 9
1.3 The values stated in inch-pound units are to be regarded
Insulation Defect or Fault Rate 8
as standard. The values given in parentheses are mathematical
Spark Test 7
conversions to SI units that are provided for information only
Electrical Tests of Completed Wire and Cable 10–52
Attenuation 25
and are not considered standard.
Attenuation, Effects Due to Aging 32
Attenuation, Effects Due to Elevated Temperature 30 1.4 This standard does not purport to address all of the
Attenuation, Effects Due to Humidity 31
safety concerns, if any, associated with its use. It is the
Attenuation to Crosstalk Ratio—Far End (ACR-F) 29
responsibility of the user of this standard to establish appro-
Attenuation to Crosstalk Ratio—Near End (ACR-N) 27
Capacitance Deviation 20 priate safety, health, and environmental practices and deter-
Capacitance Difference 21
mine the applicability of regulatory limitations prior to use.
Capacitance Unbalance, Pair-to-ground (CUPG) 23
Specific hazard statements are given in Sections 7 and 38.
Capacitance Unbalance, Pair-to-pair (CUPP) 22
Capacitance Unbalance, Pair-to-support Wire 24 1.5 This international standard was developed in accor-
Characteristic Impedance—Test Method 1: Propagation Con- 48
dance with internationally recognized principles on standard-
stant and Capacitance
ization established in the Decision on Principles for the
Characteristic Impedance—Test Method 2: Single-ended Mea- 49
surements Development of International Standards, Guides and Recom-
Characteristic Impedance—Test Method 3: Least Squares 50
mendations issued by the World Trade Organization Technical
Function Fit
Barriers to Trade (TBT) Committee.
Coaxial Capacitance (Capacitance to Water) 18
Conductor Continuity 12
Conductor Resistance (CR) 14
2. Referenced Documents
Conductor Resistance Unbalance (CRU of Pairs) 16
2
2.1 ASTM Standards:
Continuity of Other Metallic Elements 13
Crosses Test (Continuity Between Wires of Different Pairs) 36
B193Test Method for Resistivity of Electrical Conductor
Crosstalk Loss, Far-end 28
Materials
Crosstalk Loss, Near-end 26
DC Proof Test, Core-to-internal Shield (Screen) 41 D150Test Methods forAC Loss Characteristics and Permit-
DC Proof Test, Core-to-shield 39
tivity (Dielectric Constant) of Solid Electrical Insulation
DC Proof Test, Core-to-support Wire 40
D1711Terminology Relating to Electrical Insulation
D2633Test Methods for Thermoplastic Insulations and
1
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
2
Subcommittee D09.07 on Electrical Insulating Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2020. Published November 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1986. Last previous edition approved in 2014 as D4566–14. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D4566-20. the ASTM website.
*A Summary of Change
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4566 − 14 D4566 − 20
Standard Test Methods for
Electrical Performance Properties of Insulations and
1
Jackets for Telecommunications Wire and Cable
This standard is issued under the fixed designation D4566; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
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 TheThese test methods appear in the following sections of this standard:
Test Method Sections
Electrical Tests of Insulation—In-Process 4 – 8
DC proof test 8
Insulation defect or fault rate 7
Spark test 6
Electrical Tests of Completed Wire and Cable 9 – 51
Attenuation 24
Attenuation, effects due to aging 31
Attenuation, effects due to elevated temperature 29
Attenuation, effects due to humidity 30
Attenuation to crosstalk ratio—far end (ACR-F) 28
Attenuation to crosstalk ratio—near end (ACR-N) 26
Capacitance deviation 19
Capacitance difference 20
Capacitance unbalance, Pair-to-ground (CUPG) 22
Capacitance unbalance, Pair-to-pair (CUPP) 21
Capacitance unbalance, Pair-to-support wire 23
Characteristic Impedance—Method 1 Propagation con- 47
stant
and capacitance
Characteristic Impedance—Method 2, Single-ended 48
measurements
Characteristic Impedance—Method 3 Least Squares 49
Function Fit
Coaxial capacitance (capacitance to water) 17
Conductor continuity 11
Conductor resistance (CR) 13
Conductor resistance unbalance (CRU of pairs) 15
Continuity of other metallic elements 12
Crosses test (continuity between wires of different pairs) 35
Crosstalk loss, far-end 27
Crosstalk loss, near-end 25
DC proof test, Core-to-internal shield (screen) 40
1
These test methods are under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and are the direct responsibility of Subcommittee
D09.07 on Electrical Insulating Materials.
Current edition approved May 15, 2014Oct. 1, 2020. Published May 2014November 2020. Originally approved in 1986. Last previous edition approved in 20082014 as
ε1
D4566 – 08D4566 – 14. . DOI: 10.1520/D4566-14.10.1520/D4566-20.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D4566 − 20
Test Method Sections
DC proof test, Core-to-shield 38
DC proof test, Core-to-support wire 39
DC proof test, Internal shield (screen)-to-shield 41
DC proof test, Other required isolations 42
DC proof test, Wire-to-wire 37
Fault rate test (air core only) 33
Insulation resistance (IR) 32
Jacket voltage breakdown rating test 36
Mutual capacitance (CM) 18
Mutual conductance 16
Phase Constant 44
Phase Delay 45
Phase Velocity 46
Resistance of other metallic cable elements 14
Shorts test (continuity between wires of a pair) 34
Structural Return Loss and Return Loss 50
Unbalance attenuation (conversion losses) 51
Voltage surge test 43
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 (Conti
...
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