ASTM D4325-02 - 10.3.2002
 
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.

 
1. 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:

Section
Referenced Documents2
Conditioning5-6
Dielectric Strength33-40
Dimensions11-16
Dissipation Factor22-26
Elongation17-21
Heat Exposure46-49
Fusion7-10
Ozone Resistance41-45
Permittivity22-26
Sample Requirements4
Tensile Strength17-21
Volume Resistivity27-34
Ultraviolet 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.

 
2. Referenced Documents

D149-25

Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

D150-22

Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

D257-14(2021)e1

Standard Test Methods for DC Resistance or Conductance of Insulating Materials (Includes all amendments and changes 5/6/2021).

D4496-21e1

Standard Test Method for D-C Resistance or Conductance of Moderately Conductive Materials (Includes all amendments and changes 12/8/2022).

D374-99

Standard Test Methods for Thickness of Solid Electrical Insulation

D412-16(2021)

Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension

D470-21

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

D750-12(2021)

Standard Practice for Rubber Deterioration Using Artificial Weathering Apparatus

D4388-20

Standard Specification for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes

E591-80

Practice for Safety and Health Requirements Relating to Occupational Exposure to Ozone (Withdrawn 1990)