ASTM D2308-02

Standard Specification for Thermoplastic Polyethylene Jacket for Electrical Wire and Cable

SCOPE
1.1 This specification covers a thermoplastic jacketing compound for 2 to 35 kV wire and cable, of at least 0.030 in. (0.76 mm) nominal thickness, consisting substantially of pigmented polyethylene.
1.2 In many instances the jacket material cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on jacketed wire and cable in this document solely to determine the relevant property of the jacket material and not to test the jacketed conductor or completed cable.
1.3 Whenever 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.

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

Relations

• Replaces: ASTM D2308-97 - Standard Specification for Thermoplastic Polyethylene Jacket for Electrical Wire and Cable
• Effective Date: 10-Mar-2002
• Replaced By: ASTM D2308-07 - Standard Specification for Thermoplastic Polyethylene Jacket for Electrical Wire and Cable
• Effective Date: 01-May-2007
• Referred By: ASTM D1351-20 - Standard Specification for Thermoplastic Polyethylene Insulation for Electrical Wire and Cable
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2308 – 02
Standard Specification for
Thermoplastic Polyethylene Jacket for Electrical Wire and
1
Cable
This standard is issued under the fixed designation D2308; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Physical Properties
1.1 Thisspecificationcoversathermoplasticjacketingcom- 4.1 Thepolyethylenebeforeapplicationtothewireorcable
pound for 2 to 35 kVwire and cable, of at least 0.030 in. (0.76 shall comply with the requirements for Type I, Class C,
mm) nominal thickness, consisting substantially of pigmented Category 4 or 5, Grade E5 or J3 of Specification D1248, or
polyethylene. Class B with equivalent weathering requirements to Class C
1.2 In many instances the jacket material cannot be tested materials. The requirements of Specification D1248 shall not
unless it has been formed around a conductor or cable. apply to the jacket removed from the wire or cable. The
Therefore, tests are done on jacketed wire and cable in this compound is suitable for exposure to sunlight and other
document solely to determine the relevant property of the atmospheric environments at temperatures between −55
jacket material and not to test the jacketed conductor or and+75°C, and a minimum installation temperature of−40°C.
completed cable. 4.2 Specimensremovedfromthewireorcableandtestedat
1.3 Whenever two sets of values are presented, in different 20 to 28°C (68 to 82°F) shall conform to the requirements for
units, the values in the first set are the standard, while those in physical properties specified in Table 1. The jacket may be
parentheses are for information only. air-oven aged without removal from the conductor.
4.3 Environmental Stress-Cracking Test— The jacket shall
2. Referenced Documents
conformtotherequirementsforGradeE5asspecifiedinTable
2.1 ASTM Standards: 3 of Specification D1248.
D1248 Specification for Polyethylene Plastics Extrusion
4.4 Absorption Coeffıcient—See Test Method D3349. In-
2
Materials for Wire and Cable stead of testing the jacket removed from the conductors, a
D1693 Test Method for Environmental Stress-Cracking of
certification by the polyethylene compound manufacturer that
2
Ethylene Plastics this requirement has been complied with shall suffice.
3
D1711 Terminology Relating to Electrical Insulation
5. Electrical Properties
D2633 Methods of Testing Thermoplastic Insulations and
4
Jackets for Wire and Cable 5.1 The polyethylene jacket shall conform to the require-
D3349 Test Method forAbsorption Coefficient of Ethylene ments for electrical properties specified in Table 2.
4
Polymer Material Pigmented with Carbon Black
6. Sampling
3. Terminology
6.1 Unless otherwise instructed, sample the jacket in accor-
3.1 Definitions: dance with Test Methods D2633.
3.1.1 Refer to Terminology D1711 for definitions pertinent
7. Test Methods
to this specification.
7.1 Unless otherwise instructed, test the jacket in accor-
3.2 Definition of Term Specific to This Standard:
3.2.1 aging, n—exposure of materials to air at 100°C for dance with Test Methods D2633.
7.2 Environmental Stress-Cracking Test—Test in accor-
either 24 or 48 h.
dance with Test Method D1693, ConditionA, using undiluted
Igepal CO 630 as specified in Specification D1248.
1
This specification is under the jurisdiction of ASTM Com
...