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            安裝配電柜前需做哪些工作,你得清楚!

            發布時間:2018-03-12 文章來源: 閱讀次數:2249

                配電柜安裝通常是以角鋼或抽鋼作基礎的。在對其進行安裝前,必須先制作和埋設型鋼.然后再將配電柜固定于基礎型鋼上。

             

                     

             

                1.基礎型鋼的制作

             

                基礎型鋼常用角鑰或槽鋼制作,鋼材規格大小的選擇應根據配電柜的尺寸和重較而定.槍鋼用5-10號,角鋼用30X4-50X5.制作時。首先將型鋼調直.除去鐵銹.然后、按圖紙要求尺寸進行下料和鉆孔《不采用燎栓固定者不鉆孔)。另外,還必須注意的是.每種型式的配電柜底部都設有供螺拴固定用的安裝孔,但孔間距離各不相同.因此,在沒有圖紙的情況下鉆孔時.應注意查閱產品樣本或按實物尺寸進行加工。

             

                2.基礎型鋼的埋設

             

                型鑰的埋設方法一般有:直接埋設法和預留溝槽埋設法兩種。

             

                (1)直接埋設法

             

                這種方法是在澆滋混凝土時,直接將荃礎型鋼埋設好。其具體施工過程如下:

             

                1)先在埋設位工找出型鋼的中心線.再按圖紙的標高尺寸測It其安裝高度和位置.并做好記號。

             

                2)將41鋼放在所測量的位置上,通過墊鐵片使其與記號對準.再用水平尺調好水平.并使兩根型鋼處在同一水平面上.且要平行.型鋼埋設偏差不應大于表4-3中的規定。

             

                3)水平調好后即可將型鋼固定。固定方法一般是將型鋼焊接在鋼筋上.也可用鐵絲綁在鋼筋上。為了防止型鋼下沉而影響水平、可在型鋼下面支一些鑰筋使其穩固。

             

                (2)頂留溝格埋設法

             

                該方法是在上建混凝土澆灌時,根據圖紙設計要求在型鋼埋設位置先預埋固定纂礎型鋼用的鐵件或基礎螺拴.同時預留出溝摘。溝抽的寬度應比基礎型鋼寬30rnm左右.深度應為基礎型鋼埋人深度加10mm調整裕度,再減去二次抹灰層厚度。在混凝土凝固后、二次抹灰前,將基礎型鋼放人預留溝槽內,經調平后與預埋鐵件焊接或用基礎螺栓固定.型鋼的周田用混凝土墳充并搗實。

             

                基礎型鋼安裝完畢后.其頂部應高出抹平地面10mm《手推車式柜除外)。另外,還應將其與接地網用扁鋼經焊接后相連,以保證設備可靠的接地。

             

             

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