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[国外标准] BS EN 50397-3-2010 Covered conductors for overhead lines and the related accessories for rated voltages above 1kV a.c. and not exceeding 36kV a.c.

666dasun

P:2026-01-28 08:13:07

1

BS EN 50397-3-2010.pdf

BS EN 50397-3-2010 Covered conductors for overhead lines and the related accessories for rated voltages above 1kV a.c. and not exceeding 36kV a.c..pdf

unshielded twisted-pair cabling system - 无屏蔽对绞线芯成缆装置 （0） 投诉

uyless

P:2026-09-10 07:47:44

2

OK

add-drop multiplexer - 上-下路复用器,插-分复用器 （0） 投诉

2