ASTM-D3555 › Historical Revision Information
Standard Specification for Track-Resistant Black Crosslinked Polyethylene Insulation for Wire and Cable, 90 degrees C Operation
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This specification covers track-resistant black crosslinked polyethylene insulation for conducting wires and cables operating continuously at a specified conductor temperature. The insulation is suitable for use for power transmission in overhead spaced-line service that is exposed to sunlight and other atmospheric environments. The prescribed tests cannot be performed unless the insulation is formed around a conductor, but these are done solely to determine the insulation properties and not to test the conductor or completed cable. Each test sample should be subjected to an ac or dc voltage withstand test at voltages that are based on the nominal thickness of the insulation and should comply with the required values for aging, heat distortion, cold blend, U-bend discharge, track resistance, tensile strength, elongation at rupture, track resistance, and surface resistivity.
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 90 °C.
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 −25° and exposed to sunlight and other atmospheric environments between −55 and +90 °C.
1.4 In many instances, the insulation cannot be tested unless it has been formed around a conductor. Therefore, tests done on insulated wire in this standard are 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.
Keywords
ac test; cold bend; crosslinked polyethylene; dc test; elongation; environmental cracking; heat distortion. surface resistivity; tensile strength; track-resistant; u-bend discharge; ICS Number Code 29.035.20 (Plastic and rubber insulating materials)
To find similar documents by ASTM Volume:
10.02 (Electrical Insulation (II): D2518 - latest)
To find similar documents by classification:
29.035.20 (Plastics and rubber insulating materials Including adhesive tapes)
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Document Number
ASTM-D3555-07(2013)
Revision Level
2007 R13 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
March 15, 2013
Document Type
Specification
Page Count
2 pages
Committee Number
D09.07