发布时间:2025-02-02 21:42:18
灯具安装标注里都有离地高度。
荧光灯安装有管吊、链吊、吸顶、嵌入等方式。导线多半是穿管暗敷,阻燃管是暗埋在上层混凝土楼板的钢筋上面的,该线管当然要从开关箱引出,竖向线管暗埋墙内向上引。
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atwe2 nhbv325 sc20 sce 这组电工序号是什么意思
2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18 2025-02-02 21:42:18