在高層建筑的供電系統中，動力和照明線路往往分開設置，母線槽作為供電主干線在電氣豎井內沿墻垂直安裝一趟或多趟。

　　In the power supply system of the high-rise building, the power and lighting lines are often set up separately, and the busbar slot is used as the mainline of the power supply in the vertical shaft to be installed vertically or more vertically in the shaft.

　　密集式母線槽(簡稱母線槽)是由金屬板(鋼板或鋁板)為保護外殼、導電排、絕緣材料及有關附件組成的母線系統。它可制成每隔一段距離設有插接分線盒的插接型封閉母線，也可制成中間不帶分線盒的饋電型封閉式母線。

　　Dense busbar (abbreviation) is a busbar system consisting of metal plates (steel plates or aluminum plates) to protect the shell, conductive, insulating material and related accessories. It can be made into a plug-in enclosed bus bar with a plug-in sub box every distance, and a feeder closed bus without intermediate box.

　　母線槽按絕緣方式可分為空氣式插接母線槽、密集絕緣插接母線槽和高強度插接母線槽三種。

　　According to the way of insulation, busbar slot can be divided into three parts: air socket busbar slot, dense insulation socket busbar slot and high strength socket bus slot.

　　按其結構及用途分為密集絕緣、空氣絕緣、空氣附加絕緣、耐火、樹脂絕緣和滑觸式母線槽;按其外殼材料分為鋼外殼、鋁合金外殼和鋼鋁混合外殼母線槽。

　　According to its structure and use, it is divided into dense insulation, air insulation, air additional insulation, fire resistant, resin insulation and sliding busbar groove, and divided into steel shell, aluminum alloy shell and steel aluminum mixed case busbar trough according to its shell material.

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