ASTM-D470 2021

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D470-21 Standard Test Methods for Crosslinked Insulations and Jackets for Wire and Cable

Published By	Publication Date	Number of Pages
ASTM	2021

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Categories: 29.035.01 - Insulating materials in general, ASTM

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Description

ASTM D470-21

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

ASTM D470

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 These test methods appear in the following sections:

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 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. For specific hazards see Section 4.

1.6 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.

Keywords

capacitance; cold bend; crosslinked insulation; dielectric withstand; dissipation factor; flammability; heat distortion; heat exposure (aging); horizontal flame test; insulation resistance; mineral filler content; oil immersion; ozone resistance; partial-discharge extinction level; permittivity; set test; surface resistivity; tear test; track resistance; u-bend discharge; water absorption tests ;

ICS Code

ICS Number Code 29.035.01 (Insulating materials in general)

DOI: 10.1520/D0470-21

Additional information

Electrical Tests of Insulation	17 to 64
Mineral Filler Content, Determination of	107 to 111
Track Resistance Test	125 to 128
Water Absorption Test on Fibrous Coverings	101 to 106
Insulation Resistance Tests on Completed Cable	30 to 37
Partial-Discharge Test	58 to 64
Capacitance and Dissipation Factor Tests	38 to 44
Test Method	Section(s)
Water Absorption Test, Accelerated	72 to 86
Ozone Resistance Test	87 to 99
Cold Bend, Long-time Voltage Test on Short Specimens	51 to 57
Surface Resistivity Test	112 to 116
U-Bend Discharge Test	117 to 121
Double AC Voltage Test on Short Specimens	45 to 50
Physical Tests of Insulation and Jacket Compounds	5 to 16
AC and DC Voltage Withstand Tests	22 to 29
Cold Bend	124
Horizontal Flame Test	100 (Test Method D7936)
Heat Distortion Test	123
Water Absorption Test	65 to 71

ICS Codes	29.035.01 - Insulating materials in general