GB/T 19443-2004 (English Version) PDF

Standard No.: GB/T 19443-2004
Language: Chinese, Available in English version
Release Date: 2004
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-05
Replace By: GB/T 19443-2017
Latest: GB/T 19443-2017

Scope: This standard applies to porcelain or glass insulator string components for DC overhead power lines with a nominal voltage higher than 1000V. This standard does not apply to organic composite insulators. The application of this standard to other conditions of insulators under DC voltage is considered by the relevant technical committee. This standard specifies: - technical requirements, dimensions and characteristics of insulators; - conditions for testing the specified values of these characteristics; - acceptance criteria. This standard specifies basic characteristic tests similar to IEC 60383-1. In order to ensure satisfactory long-term performance of DC insulators, some tests must be added. Currently, these additional tests are only relevant to disc suspension insulators. In view of the lack of valid data on the performance of long rod insulators for d.c. lines, it is currently not possible to specify or confirm tests suitable for such insulators at d.c. This standard does not include requirements for the selection of insulators or special tests for specific operating conditions, for example, aging caused by specific operating conditions.

GB/T 19443-2004 history

2017 GB/T 19443-2017 Insulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—Definitions,test methods and acceptance criteria
2004 GB/T 19443-2004 Insulators for overhead lines with a nominal voltage above 1000V-Ceramic or glass insulator units for d.c. systems-Difinitions,test methods and acceptance criteria