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[国外标准] EN 50397-1-2020 Covered conductors for overhead lines and the relatedaccessories for rated voltages above 1kV AC and not exceeding36kV AC - Part 1: Covered conductors

666dasun

P:2026-01-28 00:06:28

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EN 50397-1-2020.pdf

EN 50397-1-2020 Covered conductors for overhead lines and the relatedaccessories for rated voltages above 1kV AC and not exceeding36kV AC - Part 1: Covered conductors.pdf

communication transponder - 通信转发器 （0） 投诉

uyless

P:2026-09-10 07:47:51

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mismatching loss - 失配损耗 （0） 投诉

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