ASTM D3004-08

Standard Specification for Crosslinked and Thermoplastic Extruded Semi-Conducting, Conductor and Insulation Shielding Materials

ABSTRACT
This specification covers extruded cross linked and thermoplastic semi-conducting, conductor and insulation shielding materials for electrical wires and cables. The materials covered are not compatible with hydro carbon derivatives of a swelling or deteriorating nature. Different tests shall be performed in order to determine physical properties like brittleness, aging requirements, and elongation at rupture and volume resistivity.
SCOPE
1.1 This specification covers crosslinked and thermoplastic extruded semi-conducting, conductor and insulation shielding materials for electrical wires and cables.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 In many instances, the electrical properties of the shielding material are strongly dependent on processing conditions. For this reason, in this specification the material is sampled from cable. Therefore, tests are done on shielded wire in this standard solely to determine the relevant property of the shielding material and not to test the conductor or completed cable.

General Information

• Status: Historical
• Publication Date: 30-Apr-2008
• ICS: 29.045 - Semiconducting materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials

Relations

• Replaces: ASTM D3004-02 - Standard Specification for Extruded Crosslinked and Thermoplastic Semi-Conducting, Conductor and Insulation Shielding Materials
• Effective Date: 01-May-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3004 −08 AnAmerican National Standard
Standard Specification for
Crosslinked and Thermoplastic Extruded Semi-Conducting,
1
Conductor and Insulation Shielding Materials
This standard is issued under the fixed designation D3004; 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.
1. Scope* ume Resistivity for Extruded Crosslinked and Thermo-
plastic Semiconducting Conductor and Insulation Shield-
1.1 This specification covers crosslinked and thermoplastic
ing Materials
extruded semi-conducting, conductor and insulation shielding
materials for electrical wires and cables.
3. Terminology
1.2 The values stated in SI units are to be regarded as
3.1 Definitions: For definitions of terms used in this
standard. No other units of measurement are included in this
specification, refer to Terminology D1711.
standard.
3.2 Definitions of Terms Specific to This Standard:
1.3 In many instances, the electrical properties of the
3.2.1 aging (act of), n—the exposure of materials to an
shielding material are strongly dependent on processing con-
environment for an interval of time.
ditions. For this reason, in this specification the material is
sampled from cable. Therefore, tests are done on shielded wire
3.2.2 longitudinal volume resistivity, n—an electrical resis-
in this standard solely to determine the relevant property of the
tance multiplied by a factor calculated from the geometry of a
shielding material and not to test the conductor or completed
specimen volume between electrodes in contact with one, and
cable.
only one, surface of the specimen.
3.2.2.1 Discussion—In normal wire and cable usage, the
2. Referenced Documents
longitudinalvolumeresistivityissimplyreferredtoas“volume
2
2.1 ASTM Standards: resistivity.” This usage is at variance with terminology in Test
D257 Test Methods for DC Resistance or Conductance of Methods D257, Terminology D1711, and Test Method D4496.
Insulating Materials
3.2.3 semi-conducting, adj—moderately conductive; see
D1711 Terminology Relating to Electrical Insulation
Terminology D1711 and Test Method D4496.
D2647 Specification for Crosslinkable Ethylene Plastics
D3182 PracticeforRubber—Materials,Equipment,andPro-
4. Physical Properties
cedures for Mixing Standard Compounds and Preparing
4.1 The shielding material, when processed into molded
Standard Vulcanized Sheets
slabs, in accordance with Procedure C in theAnnex of Practice
D3183 Practice for Rubber—Preparation of Pieces for Test
D4703, the Sampling Section of Specification D2647, and
Purposes from Products
Practices D3182 and D3183, depending on the type of material
D4496 Test Method for D-C Resistance or Conductance of
being tested, shall conform to the requirements for physical
Moderately Conductive Materials
properties specified in Table 1.
D4703 Practice for Compression Molding Thermoplastic
Materials into Test Specimens, Plaques, or Sheets
5. Electrical Requirements
D6095 Test Method for Longitudinal Measurement of Vol-
5.1 Logitudinal Volume Resistivity—When the extruded
conductor and insulation shielding is sampled and tested in
...

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.
An American National Standard
Designation:D3004–02 Designation: D 3004 – 08
Standard Specification for
Extruded Crosslinked and Thermoplastic Extruded Semi-
1
Conducting, Conductor and Insulation Shielding Materials
This standard is issued under the fixed designation D 3004; 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.
1. Scope
1.1This specification covers extruded crosslinked and thermoplastic semi-conducting, conductor and insulation shielding
materials for electrical wires and cables.
1.2The materials covered are not compatible with hydrocarbon derivatives of a swelling or deteriorating nature.
1.3Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those in
parentheses are for information only.
1.4In many instances, the electrical properties of the shielding material are strongly dependent on processing conditions. For this
reason, in this specification the material is sampled from cable. Therefore, tests are done on shielded wire in this standard solely
to determine the relevant property of the shielding material and not to test the conductor or completed cable. *
1.1 This specification covers crosslinked and thermoplastic extruded semi-conducting, conductor and insulation shielding
materials for electrical wires and cables.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 In many instances, the electrical properties of the shielding material are strongly dependent on processing conditions. For
this reason, in this specification the material is sampled from cable. Therefore, tests are done on shielded wire in this standard
solely to determine the relevant property of the shielding material and not to test the conductor or completed cable.
2. Referenced Documents
2
2.1 ASTM Standards:
D 257 Test Methods for DC Resistance or Conductance of Insulating Materials
D 1711 TerminologyRelatingtoElectricalInsulationD1928PracticeforPreparationofCompression-MoldedPolyethyleneTest
Sheets and Test Specimens
D 2647 Specification for Crosslinkable Ethylene Plastics
D 3182 Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard
Vulcanized Sheets
D 3183 Practice for Rubber—Preparation of Product Pieces for Test Purposes from Products
D 4496Test Method for DC Resistance or Conductance of Moderately Conductive Materials Test Method for D-C Resistance
or Conductance of Moderately Conductive Materials
D 4703 Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
D 6095 Test Method for Longitudinal Measurement of Volume Resistivity for Extruded Crosslinked and Thermoplastic
Semi-Conducting,Semiconducting Conductor and Insulation Shielding Materials
3. Terminology
3.1 Definitions: For definitions of terms used in this specification, refer to Terminology D1711.D 1711.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 aging (act of), n—the exposure of materials to an environment for an interval of time.
3.2.2 longitudinal volume resistivity, n— an electrical resistance multiplied by a factor calculated from the geometry of a
specimen volume between electrodes in contact with one, and only one, surface of the specimen.
3.2.2.1 Discussion—In normal wire and cable usage, the longitudinal volume resistivity is simply referred to as “volume
resistivity.” This usage is at variance with terminology in Test Methods D 257, Terminology D 1711, and Test Method D 4496.
1
This specification is under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and is 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 March 10, 2002.May 1, 2008. Published June 2002.2008. Originally published at D3004–71.approved in 1971. Last previous edition
D3004–97.approved in 2002 as D 3004 – 02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
, Vol 10.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary of Changes section
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