ASTM D4566-08
(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
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 may 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 The test methods appear in the following sections of this standard: Test MethodSections Electrical Tests of Insulation—In-Process4-8 DC proof test8 Insulation defect or fault rate7 Spark test6 Electrical Tests of Completed Wire and Cable9-51 Attenuation24 Attenuation, effects due to aging31 Attenuation, effects due to elevated temperature29 Attenuation, effects due to humidity30 Attenuation to crosstalk ratio—far end (ACR-F)28 Attenuation to crosstalk ratio—near end (ACR-N)26 Capacitance deviation19 Capacitance difference20 Capacitance unbalance, Pair-to-ground (CUPG)22 Capacitance unbalance, Pair-to-pair (CUPP)21 Capacitance unbalance, Pair-to-support wire23 Characteristic Impedance—Method 1 Propagation constant
and capacitance47 Characteristic Impedance—Method 2, Single-ended
measurements48 Characteristic Impedance—Method 3 Least Squares Function Fit49 Coaxial capacitance (capacitance to water)17 Conductor continuity11 Conductor resistance (CR)13 Conductor resistance unbalance (CRU of pairs)15 Continuity of other metallic elements12 Crosses test (continuity between wires of different pairs)35 Crosstalk loss, far-end27 Crosstalk loss, near-end25 DC proof test, Core-to-internal shield (screen)40 DC proof test, Core-to-shield38 DC proof test, Core-to-support wire39 DC proof test, Internal shield (screen)-to-shield41 DC proof test, Other required isolations42 DC proof test, Wire-to-wire37 Fault rate test (air core only)33 Insulation resistance (IR)32 Jacket voltage breakdown rating test36 Mutual capacitance (CM)18 Mutual conductance16 Phase Constant44 Phase Delay45 Phase Velocity46 Resistance of other metallic cable elements14 Shorts test (continuity between wires of a pair)34 Structural Return Loss and Return Loss50 Unbalance attenuation (conversion losses)51 Voltage surge test43
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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Sections 6 and 37.
4.1 In-process electrical tests are used primarily as process control tools in an attempt to minimize the number and magnitude of problems detected at final test of completed cable.
9.1 Electrical tests of completed wire and cable may include verification of some or all of the properties in accordance with Sections 11 through 51.
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An American National Standard
Designation:D4566–08
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*
Test Method Sections
DC proof test, Other required isolations 42
1.1 These test methods cover procedures for electrical
DC proof test, Wire-to-wire 37
testing of thermoplastic insulations and jackets used on tele-
Fault rate test (air core only) 33
Insulation resistance (IR) 32
communicationswireandcableandforthetestingofelectrical
Jacket voltage breakdown rating test 36
characteristics of completed products. To determine the proce-
Mutual capacitance (CM) 18
dure to be used on the particular insulation or jacket com- Mutual conductance 16
Phase Constant 44
pound, or on the end product, reference should be made to the
Phase Delay 45
specification for the product.
Phase Velocity 46
1.2 Thetestmethodsappearinthefollowingsectionsofthis
Resistance of other metallic cable elements 14
Shorts test (continuity between wires of a pair) 34
standard:
Structural Return Loss and Return Loss 50
Test Method Sections
Unbalance attenuation (conversion losses) 51
Electrical Tests of Insulation—In-Process 4-8
Voltage surge test 43
DC proof test 8
Insulation defect or fault rate 7 1.3 The values stated in inch-pound units are to be regarded
Spark test 6
as standard. The values given in parentheses are mathematical
Electrical Tests of Completed Wire and Cable 9-51
conversions to SI units that are provided for information only
Attenuation 24
Attenuation, effects due to aging 31
and are not considered standard.
Attenuation, effects due to elevated temperature 29
1.4 This standard does not purport to address all of the
Attenuation, effects due to humidity 30
safety concerns, if any, associated with its use. It is the
Attenuation to crosstalk ratio—far end (ACR-F) 28
Attenuation to crosstalk ratio—near end (ACR-N) 26
responsibility of the user of this standard to establish appro-
Capacitance deviation 19
priate safety and health practices and determine the applica-
Capacitance difference 20
bility of regulatory limitations prior to use. Specific hazard
Capacitance unbalance, Pair-to-ground (CUPG) 22
Capacitance unbalance, Pair-to-pair (CUPP) 21
statements are given in Sections 6 and 37.
Capacitance unbalance, Pair-to-support wire 23
Characteristic Impedance—Method 1 Propagation constant 47
2. Referenced Documents
and capacitance
2
Characteristic Impedance—Method 2, Single-ended 48
2.1 ASTM Standards:
measurements
B193 Test Method for Resistivity of Electrical Conductor
Characteristic Impedance—Method 3 Least Squares Function Fit 49
Materials
Coaxial capacitance (capacitance to water) 17
Conductor continuity 11
D150 Test Methods for AC Loss Characteristics and Per-
Conductor resistance (CR) 13
mittivity (Dielectric Constant) of Solid Electrical Insula-
Conductor resistance unbalance (CRU of pairs) 15
tion
Continuity of other metallic elements 12
Crosses test (continuity between wires of different pairs) 35
D1711 Terminology Relating to Electrical Insulation
Crosstalk loss, far-end 27
D2633 Test Methods for Thermoplastic Insulations and
Crosstalk loss, near-end 25
Jackets for Wire and Cable
DC proof test, Core-to-internal shield (screen) 40
DC proof test, Core-to-shield 38
D3426 Test Method for Dielectric Breakdown Voltage and
DC proof test, Core-to-support wire 39
Dielectric Strength of Solid Electrical Insulating Materials
DC proof test, Internal shield (screen)-to-shield 41
Using Impulse Waves
D5423 Specification for Forced-Convection Laboratory
Ovens for Evaluation of Electrical Insulation
1
These test methods are under the jurisdiction of ASTM Committee D09 on
Electrical and Electronic Insulating Materials and are the direct responsibility of
SubcommitteeD09.18onSolidInsulations,Non-MetallicShieldingsandCoverings
for Electrical and Telecommunication Wires and Cables.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2008. Published December 2008. Originally
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
´1
approved in 1986. Last previous edition approved in 2005 as D4566–05 . DOI:
Standards volume information, refer to the standard’s Document Summary page on
10.1520/D4566-08.
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard
´1
Designation:D4566–05 Designation:D4566–08
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
´ NOTE—Changes were made to improve the layout and clarity of equations throughout October 2005.
1. Scope*
1.1 These test methods cover procedures for electrical testing of thermoplastic insulations and jackets used on telecommuni-
cationswireandcableandforthetestingofelectricalcharacteristicsofcompletedproducts.Todeterminetheproceduretobeused
on the particular insulation or jacket compound, or on the end product, reference should be made to the specification for the
product.
1.2 The 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 constant 47
and capacitance
Characteristic Impedance—Method 2, Single-ended 48
measurements
Characteristic Impedance—Method 3 Least Squares Function Fit 49
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
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
1
ThesetestmethodsareunderthejurisdictionofASTMCommitteeD09onElectricalandElectronicInsulatingMaterialsandarethedirectresponsibilityofSubcommittee
D09.18 on Solid Insulations, Non-Metallic Shieldings, and Coverings for Electrical and Telecommunications Wires and Cables.
Current edition approved MarchNov. 1, 2005.2008. PublishedApril 2005.December 2008. Originally approved in 1986. Last previous edition approved in 19982005 as
´1
D4566–98.D4566–05 .
*A Summary of Changes section appears at the end of this standard.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D4566–08
Test Method Sections
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
1.3The values stated in inch-pound units are to be regarded as the standard. SI units are for information only.
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 and health practices and determine the applicability of regulatory
limitations prior to use. Specific hazard statements are given in Sections 6 and 37.
2. Referenced Documents
2
2.1 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor Materials
D150 Test Methods for A-CAC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulating
Materials Insulation
D171
...
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