发布时间:2025-02-02 13:21:20
不是,金属屏蔽是在半导体的外面是铜皮材料,象高压电缆等。保护套是在电缆外是铝或铅,铁制材料,象平常说的铠装电缆。导体、主绝缘、半导体层、屏蔽层、绝缘填充物、铠甲护套、外层塑料保护层。接地时一般通过编制的铜辫用锡焊到屏蔽层上,然后再接到接地极上。
我家新房快装修好了但不敢住怎么办家里有两个小宝宝怕甲醛超标你们是怎么做的啊
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