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Chinese National Standard Category: Insulator

English Title: Insulators of ceramic or glass material overhead lines with a nominal voltage greater than 1000V -- impulse puncture tests in air
Chinese Title: 高压线路绝缘子空气中冲击击穿试验―定义、试验方法和判据
Standard No.: DL/T 557-2005
Category No.: K48
Issued by: 电力工业高压试验技术标委会
Issued on: 2005-2-14
Implemented on: 2005-6-1
Status: superseded
Superseded by:DL/T 557-2021
Superseded on:2022-6-22
Abolished on:
Superseding:DL/T 557-1994 Insulators of Ceramic or Glass Material Overhead Lines with A Nominal Voltage Greater than 1000V—Impulse Tolerance Tests in Steep Wave
Word Count:5000 words
Similar Standards: GB 3984-1983   T/ZJSEE 0003-2023   GB/T 34939.1-2017   JC/T 175-1973   GB/T 4109-2022   GB/T 24622-2022   GB/T 21421.1-2021   GB/T 1001.1-2021   GB/T 4056-2019   GB/T 26218.4-2019   GB/T 22079-2019   GB/T 7253-2019   GB/T 25318-2019   GB/T 24839-2018   GB/T 13026-2017   GB/T 19443-2017   GB/T 34937-2017   GB/T 1000-2016   GB/T 21421.2-2014   GB/T 19519-2014  
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