ASTM D470-13

Standard Test Methods for Crosslinked Insulations and Jackets for Wire and Cable

SIGNIFICANCE AND USE
5.1 Physical tests, properly interpreted, provide information with regard to the physical properties of the insulation or jacket. The physical test values give an approximation of how the insulation will physically perform in its service life. Physical tests provide useful data for research and development, engineering design, quality control, and acceptance or rejection under specifications.
SCOPE
1.1 These test methods cover procedures for testing crosslinked insulations and jackets for wire and cable. To determine the test to be made on the particular insulation or jacket, refer to the product specification for that type. These test methods do not apply to the class of products known as flexible cords.  
1.2 In many instances the insulation or jacket cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on insulated or jacketed wire or cable in these test methods solely to determine the relevant property of the insulation or jacket and not to test the conductor or completed cable.  
1.3 The procedures appear in the following sections:    
Sections  
AC and DC Voltage Withstand Tests  
22 to 29  
Capacitance and Dissipation Factor Tests  
38 to 44  
Cold Bend  
128  
Cold Bend, Long-Time Voltage Test on Short Specimens  
51 to 57  
Double AC Voltage Test on Short Specimens  
45 to 50  
Electrical Tests of Insulation  
17 to 64  
Heat Distortion Test  
127  
Horizontal Flame Test  
100 to 104  
Insulation Resistance Tests on Completed Cable  
30 to 37  
Mineral Filler Content, Determination of  
111 to 115  
Ozone Resistance Test  
87 to 99  
Partial-Discharge Test  
58 to 64  
Physical Tests of Insulation and Jacket Compounds  
5 to 16  
Surface Resistivity Test  
116 to 120  
Track Resistance Test  
129 to 132  
U-Bend Discharge Test  
121 to 125  
Water Absorption Test  
65 to 71  
Water Absorption Test, Accelerated  
72 to 86  
Water Absorption Test on Fibrous Coverings  
105 to 110
1.4 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in the parentheses are for information only.  
1.5 This standard does not purport to address all of the safety problems, 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. For specific hazards see Section 4.

General Information

• Status: Historical
• Publication Date: 31-Jan-2013
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D470 − 13
Standard Test Methods for
1
Crosslinked Insulations and Jackets for Wire and Cable
This standard is issued under the fixed designation D470; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 These test methods cover procedures for testing cross-
bilityofregulatorylimitationspriortouse.Forspecifichazards
linked insulations and jackets for wire and cable.To determine
see Section 4.
the test to be made on the particular insulation or jacket, refer
totheproductspecificationforthattype.Thesetestmethodsdo
2. Referenced Documents
not apply to the class of products known as flexible cords.
2
2.1 ASTM Standards:
1.2 In many instances the insulation or jacket cannot be
D149Test Method for Dielectric Breakdown Voltage and
tested unless it has been formed around a conductor or cable.
DielectricStrengthofSolidElectricalInsulatingMaterials
Therefore,testsaredoneoninsulatedorjacketedwireorcable
at Commercial Power Frequencies
in these test methods solely to determine the relevant property
D150Test Methods forAC Loss Characteristics and Permit-
of the insulation or jacket and not to test the conductor or
tivity (Dielectric Constant) of Solid Electrical Insulation
completed cable.
D257Test Methods for DC Resistance or Conductance of
1.3 The procedures appear in the following sections: Insulating Materials
D412TestMethodsforVulcanizedRubberandThermoplas-
Sections
AC and DC Voltage Withstand Tests 22 to 29
tic Elastomers—Tension
Capacitance and Dissipation Factor Tests 38 to 44
D454TestMethodforRubberDeteriorationbyHeatandAir
Cold Bend 128
Pressure
Cold Bend, Long-Time Voltage Test on Short Specimens 51 to 57
Double AC Voltage Test on Short Specimens 45 to 50
D572Test Method for Rubber—Deterioration by Heat and
Electrical Tests of Insulation 17 to 64
Oxygen
Heat Distortion Test 127
D573Test Method for Rubber—Deterioration in an Air
Horizontal Flame Test 100 to 104
Insulation Resistance Tests on Completed Cable 30 to 37
Oven
Mineral Filler Content, Determination of 111 to 115
D1193Specification for Reagent Water
Ozone Resistance Test 87 to 99
D1711Terminology Relating to Electrical Insulation
Partial-Discharge Test 58 to 64
Physical Tests of Insulation and Jacket Compounds 5 to 16
D2132Test Method for Dust-and-Fog Tracking and Erosion
Surface Resistivity Test 116 to 120
Resistance of Electrical Insulating Materials
Track Resistance Test 129 to 132
D3755Test Method for Dielectric Breakdown Voltage and
U-Bend Discharge Test 121 to 125
Water Absorption Test 65 to 71
DielectricStrengthofSolidElectricalInsulatingMaterials
Water Absorption Test, Accelerated 72 to 86
Under Direct-Voltage Stress
Water Absorption Test on Fibrous Coverings 105 to 110
D5025Specification for Laboratory Burner Used for Small-
1.4 Whenever two sets of values are presented, in different
Scale Burning Tests on Plastic Materials
units, the values in the first set are the standard, while those in
D5207Practice for Confirmation of 20–mm (50–W) and
the parentheses are for information only.
125–mm (500–W) Test Flames for Small-Scale Burning
1.5 This standard does not purport to address all of the
Tests on Plastic Materials
safety problems, if any, associated with its use. It is the
D5423Specification for Forced-Convection Laboratory Ov-
ens 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
2
Subcommittee D09.07 on Electrical Insulating Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 1, 2013. Published February 2013. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1937. Last previous edition approved in 2005 as D470–05. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D0470-13. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D470 − 13
2.2 ICEA Standard: equipment available. Design test equipment, test chambers,
3
T-24-380Guide for Partial-Discharge Procedure and test specimens so as to minimize the possibility of such
occurrences and to eliminate the possibility of personal injury.
...

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: D470 − 05 D470 − 13 An American National Standard
Standard Test Methods for
1
Crosslinked Insulations and Jackets for Wire and Cable
This standard is issued under the fixed designation D470; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 These test methods cover procedures for testing crosslinked insulations and jackets for wire and cable. To determine the test
to be made on the particular insulation or jacket, refer to the product specification for that type. These test methods do not apply
to the class of products known as flexible cords.
1.2 In many instances the insulation or jacket cannot be tested unless it has been formed around a conductor or cable. Therefore,
tests are done on insulated or jacketed wire or cable in these test methods solely to determine the relevant property of the insulation
or jacket and not to test the conductor or completed cable.
1.3 The procedures appear in the following sections:
Sections
AC and DC Voltage Withstand Tests 22 to 29
Capacitance and Dissipation Factor Tests 38 to 44
Cold Bend 128
Cold Bend, Long-Time Voltage Test on Short Specimens 51 to 57
Double AC Voltage Test on Short Specimens 45 to 50
Electrical Tests of Insulation 17 to 64
Heat Distortion Test 127
Horizontal Flame Test 100 to 104
Insulation Resistance Tests on Completed Cable 30 to 37
Mineral Filler Content, Determination of 111 to 115
Ozone Resistance Test 87 to 99
Partial-Discharge Test 58 to 64
Physical Tests of Insulation and Jacket Compounds 5 to 16
Surface Resistivity Test 116 to 120
Track Resistance Test 129 to 132
U-Bend Discharge Test 121 to 125
Water Absorption Test 65 to 71
Water Absorption Test, Accelerated 72 to 86
Water Absorption Test on Fibrous Coverings 105 to 110
1.4 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in the
parentheses are for information only.
1.5 This standard does not purport to address all of the safety problems, 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. For specific hazards see Section 4.
2. Referenced Documents
2
2.1 ASTM Standards:
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at
Commercial Power Frequencies
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
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
D09.18 on Solid Insulations, Non-Metallic Shieldings and Coverings for Electrical and Telecommunication Wires and Cables.
Current edition approved Sept. 1, 2005Feb. 1, 2013. Published September 2005February 2013. Originally approved in 1937. Last previous edition approved in 19992005
as D470 – 99.D470 – 05. DOI: 10.1520/D0470-05.10.1520/D0470-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D470 − 13
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D454 Test Method for Rubber Deterioration by Heat and Air Pressure
D572 Test Method for Rubber—Deterioration by Heat and Oxygen
D573 Test Method for Rubber—Deterioration in an Air Oven
D1193 Specification for Reagent Water
D1711 Terminology Relating to Electrical Insulation
D2132 Test Method for Dust-and-Fog Tracking and Erosion Resistance of Electrical Insulating Materials
D3755 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials Under
3
Direct-Voltage Stress (Withdrawn 2013)
D5025 Specification for Laboratory Burner Us
...