ASTM D3555-20e1

Podrobné informácie

Označenie: ASTM D3555-20e1

Dátum vydania: 01.08.2020

Stránok: 3

Krajina: Americká technická norma

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Anotácia

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.


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)