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:

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

Note 1There 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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

D374 Test Methods for Thickness of Solid Electrical Insulation

D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension

D470 Test Methods for Crosslinked Insulations and Jackets for Wire and Cable

D750 Test Method for Rubber Deterioration Using Artificial Weathering Apparatus

D4388 Specification for Nonmetallic Semi-Conducting and Electrically Insulating Rubber Tapes

D4496 Test Method for D-C Resistance or Conductance of Moderately Conductive Materials

E591 Practice for Safety and Health Requirements Relating to Occupational Exposure to Ozone Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.

Keywords

dielectric strength; dissipation factor; elongation; fusion; heat exposure; ozone resistance; permittivity; rubber electrical insulating tape; rubber semi-conducting nonmetallic tape; tensile strength; ultraviolet and weather exposure; volume resistivity; Conditioning--electrical insulating materials; Conductance and conductivity (electrical)--insulating materials; Dielectric breakdown voltage; Dimensions; Electrical insulating rubber; Electrical insulating tape; Permittivity (dielectric constant)--electrical insulating materials; Semi-conducting materials; Sheath repair; Splices/splicing; Tensile properties/testing--electrical insulating materials; Terminating; Thickness--electrical insulating materials; Ultraviolet (UV) analysis--rubber; Volume resistivity; Weathering; Width; Electrical resistance/resistivity--insulating materials; Elongation--electrical insulating materials; Fusion; Heating tests--electrical insulating materials; Heat resistance; Insulating tape; Length; Micrometer measurement; Nonmetallic materials; Ozone (O 3 ) resistance;

ICS Code

ICS Number Code 29.035.20 (Plastic and rubber insulating materials)

DOI: 10.1520/D4325-08

ASTM International is a member of CrossRef.

ASTM D4325