ASTM D3555-98

Standard Specification for Track-Resistant Black Crosslinked Polyethylene Insulation for Wire and Cable, 90^oC Operation

SCOPE
1.1 This specification covers a track-resistant black crosslinked polyethylene insulation, the base polymer which consists substantially of polyethylene or its copolymers. This insulation shall be carbon black pigmented.
1.2 This type of insulation is considered suitable for use on wire or cable that will be used for continuous operation at conductor temperatures up to 90oC.
1.3 This insulation is suitable for use on wire or in cable used for power transmission in overhead spaced-line service, installed at temperatures above -25o and exposed to sunlight and other atmospheric environments between -55 and +90oC.
1.4 In many instances, the insulation cannot be tested unless it has been formed around a conductor. Therefore, tests are done on insulated wire in this standard solely to determine the relevant property of the insulation and not to test the conductor or completed cable.
1.5 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-2001
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: D09 - Electrical and Electronic Insulating Materials

Relations

• Replaced By: ASTM D3555-01 - Standard Specification for Track-Resistant Black Crosslinked Polyethylene Insulation for Wire and Cable, 90^oC Operation
• Effective Date: 10-Mar-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3555 – 98 An American National Standard
Standard Specification for
Track-Resistant Black Crosslinked Polyethylene Insulation
for Wire and Cable
This standard is issued under the fixed designation D 3555; 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.
1. Scope fication refer to Terminology D 1711.
3.2 Definition of Term Specific to This Standard:
1.1 This specification covers a black track-resistant
3.2.1 aging, (act of), n—exposure of materials to air at a
crosslinked polyethylene insulation, the base polymer which
temperature of 121°C for 168 h.
consists substantially of polyethylene or its copolymers. This
insulation shall be carbon black pigmented.
4. Physical Properties
1.2 This insulation is suitable for use on wire or in cable
4.1 When tested for physical and aging requirements, heat
used for power transmission in overhead spaced-line service,
distortion, cold bend, U-bend discharge, surface resistivity, and
installed at temperatures above −25° and exposed to sunlight
track resistance in accordance with Test Methods D 470 and for
and other atmospheric environments between −55 and +75°C.
solvent extraction in Test Methods D 2765, the track-resistant
1.3 Whenever two sets of values are presented, in different
black crosslinked polyethylene insulation shall meet the re-
units, the values in the first set are the standard, while those in
quirements specified in Table 1.
parentheses are for information only.
5. Electrical Requirements
2. Referenced Documents
5.1 Subject cable specimens to a 5 min ac or dc voltage
2.1 ASTM Standards:
withstand test at voltages which are based on the nominal
D 470 Test Methods for Crosslinked Insulations and Jackets
2 thickness of the insulation. Conduct tests in accordance with
for Wire and Cable
2 Methods D 2633 using 125 V/mil (5 kV/mm) for ac tests or
D 1711 Terminology Relating to Electrical Insulation
375 V/mil (15 kv/mm) for dc tests.
D 2132 Test Method for Dust-and-Fog Tracking and Ero-
sion Resistance of Electrical Insulating Materials
6. Sampling
D 2633 Methods of Testing Thermoplastic Insulations and
3 6.1 Sample the insulation in accordance with Test Methods
Jackets for Wire and Cable
D 470 and D 2765.
D 2765 Test Methods for Determination of Gel Content and
Swell Ratio of Crosslinked Ethylene Plastics
7. Test Methods
7.1 Test the insulation in accordance with Test Methods
3. Terminology
D 470, D 2132, and D 2765, modified as noted in Table 1.
3.1 Definitions: For definitions of terms used in this speci-
8. Keywords
8.1 ac test; cold bend; crosslinked polyethylene; dc test;
This specification is under the
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