GB/T 21224-2007 (English Version) PDF

Standard No.: GB/T 21224-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 21224-2007

Scope: This standard specifies the test method for evaluating water branching in polyethylene (PE) and cross-linked polyethylene (XLPE) composites, that is, evaluating the relative performance of these composites under alternating current (AC) electrical stress and the presence of water. Two test methods are described in the standard, method I is used to evaluate the insulation material alone, and method II is used to evaluate the insulation interlayer of the insulation compound covered with semi-conductive shielding layer

GB/T 21224-2007 Referenced Document

GB/T 1408.1-2006 Electrical strength of insulating materials-Test methods-Part 1:Tests at power frequencies
IEC 61072:1991 Methods of Test for Evaluating the Resistance of Insulating Materials Against the Initiation of Electrical Trees First Edition (Edition 1.0)

2007 GB/T 21224-2007 Methods of test for the evaluation of water treeing in insulating materials