ASTM D4325-02

Standard Test Methods for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes

SIGNIFICANCE AND USE
The physical and electrical properties, including break strength, elongation, dielectric strength, dissipation factor, permittivity, fusion, etc., will vary with temperature and moisture content. Control the temperature and moisture content of the sample for these test methods to yield consistent and reproducible results.
SCOPE
1.1 These test methods cover the methods and procedures for testing electrically insulating and semi-nonmetallic conducting rubber tapes designed for splicing, terminating, and sheath repair of electrical wire and cable.
1.2 The test methods appear in the following sections: SectionReferenced Documents2Conditioning5-6Dielectric Strength33-40Dimensions11-16Dissipation Factor22-26Elongation17-21Heat Exposure46-49Fusion7-10Ozone Resistance41-45Permittivity22-26Sample Requirements4Tensile Strength17-21Volume Resistivity27-34Ultraviolet and Weather Resistance50-54
1.3 The SI values are the standard. The inch-pound values given in parentheses are for information purposes only.
Note 1 - There is no IEC equivalent to these methods.
1.4 Unless otherwise stated, measurements are made on tapes from which the removable separator has been removed.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific precaution statements see 43.1.
1.6 This is a fire-test response standard.

General Information

• Status: Historical
• Publication Date: 09-Mar-2002
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials
• Drafting Committee: D09.07 - Electrical Insulating Materials

Relations

• Replaces: ASTM D4325-97 - Standard Test Methods for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
• Effective Date: 10-Mar-2002
• Replaced By: ASTM D4325-08 - Standard Test Methods for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
• Effective Date: 01-May-2008
• Referred By: ASTM D4388-20 - Standard Specification for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes
• Effective Date: 10-Mar-2002

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
An American National Standard
Designation: D 4325 – 02
Standard Test Methods for
Nonmetallic Semi-Conducting and Electrically Insulating
1
Rubber Tapes
This standard is issued under the fixed designation D 4325; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
2
1. Scope at Commercial Power Frequencies
D 150 Test Methods for AC Loss Characteristics and Per-
1.1 These test methods cover the methods and procedures
mittivity (Dielectric Constant) of Solid Electrical Insulat-
for testing electrically insulating and semi-nonmetallic con-
2
ing Materials
ducting rubber tapes designed for splicing, terminating, and
D 257 Test Methods for DC Resistance or Conductance of
sheath repair of electrical wire and cable.
2
Insulating Materials
1.2 The test methods appear in the following sections:
D 374 Test Methods for Thickness of Solid Electrical Insu-
Section
2
lation
Referenced Documents 2
Conditioning 5-6
D 412 Test Methods for Vulcanized Rubber and Thermo-
Dielectric Strength 35-40
3
plastic Rubbers and Thermoplastic Elastomers—Tension
Dimensions 11-16
D 470 Test Methods for Crosslinked Insulations and Jackets
Dissipation Factor 22-26
2
Elongation 17-21
for Wire and Cable
Heat Exposure 46-49
D 750 Test Method for Rubber Deterioration in Carbon-Arc
Fusion 7-10
3
Weathering Apparatus
Ozone Resistance 41-45
Permittivity 22-26
D 4388 SpecificationforNonmetallicSemi-Conductingand
Sample Requirements 4
4
Electrically Insulating Rubber Tapes
Tensile Strength 17-21
Volume Resistivity 27-34 D 4496 Test Method for DC Resistance or Conductance of
4
Ultraviolet and Weather Resistance 50-54
Moderately Conductive Materials
E 591 PracticeforSafetyandHealthRequirementsRelating
1.3 The SI values are the standard. The inch-pound values
5
to Occupational Exposure to Ozone
given in parentheses are for information purposes only.
NOTE 1—There is no IEC equivalent to these methods.
3. Terminology
1.4 Unless otherwise stated, measurements are made on
3.1 Definitions of Terms Specific to This Standard:
tapes from which the removable separator has been removed. 3.1.1 fusion, n—that property of rubber tape which causes
1.5 This standard does not purport to address all of the
adjacent layers of tape to become bonded (amalgamated) or
safety concerns, if any, associated with its use. It is the adhered together when the tape is stretched and wound upon
responsibility of the user of this standard to establish appro-
itself in layers.
priate safety and health practices and determine the applica-
SAMPLING
bility of regulatory limitations prior to use. For specific
precaution statements see 43.1.
4. Sample and Specimen Requirements
1.6 This is a fire-test response standard.
4.1 Unless otherwise required by the detailed product speci-
2. Referenced Documents fications, take the rubber tapes at random from each shipment
as follows:
2.1 ASTM Standards:
Number of Rolls Number of Sample
D 149 Test Method for Dielectric Breakdown Voltage and
in Shipment Rolls
Dielectric Strength of Solid Electrical Insulating Materials
50 to 200 2
1
These test methods are under the jurisdiction of ASTM Committee D09 on
2
Electrical and Electronic Insulating Materials and are the direct responsibility of Annual Book of ASTM Standards, Vol 10.01.
3
Subcommittee D09.07 on Flexible and Rigid Insulating Materials. Annual Book of ASTM Standards, Vol 09.01.
4
Current edition approved March 10, 2002. Published June 2002. Originally Annual Book of ASTM Standards, Vol 10.02.
5
published as D 4325 – 97. Discontinued, see 1991 Annual Book of ASTM Standards, Vol 11.03.
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D4325–02
9. Procedure
201 to 500 3
501 to 1000 4
9.1 Prepare three specimens by cutting three strips of tape
1001 to 5000 5
280 mm (11 in.) in length from the sample roll selected and
4.2 For shipments in excess of 5000 rolls, take one addi-
conditioned in accordance with Sections 4-6. Prepare and wind
tional roll for each additional 1000 rolls or fraction thereof.
specimens in a manner that prevents oils or other contaminants
4.3 A shipment consists of material shipped or intended for
from getting on the bonding surface of the tape.
shipment to a customer and covered by one bill of lading.
9.2 Mount the rod horizontally in the winding fixture.
4.4 Testeachsamplerollinconformancetoallrequirements
9.3 Attach the strip of tape near one end of the rod by
of the specific
...