母線槽的撓度應不大于跨度的多少
The installation of the bus groove can be directly received from the transformer to the low-voltage distribution cabinet, and also can be directly connected to the distribution system from the low-voltage cabinet as the main line of the distribution.
1、電纜橋架與一般工藝管道(如壓縮空氣管道等)平行架設時不小于400mm，與具有腐蝕性液體管道平行架設時不小于500mm，與熱力管道平行架設，熱力管道有保溫層時不小于500mm，無保溫層時不小于1000mm。
1, cable tray and general piping (such as compressed air pipe etc.) parallel erection shall not be less than 400mm, and the corrosive liquid pipeline parallel erection shall not be less than 500mm, set up in parallel with the heat pipe, heat pipe with insulation layer is not less than 500mm, no insulation layer is not less than 1000mm.
2、電纜橋架的總平面布置應作到距離短，經濟合理，運行，并應滿足施工安裝，維修和敷設電纜的要求。
2, the overall layout of the cable bridge should be the shortest distance, economic, reasonable and safe operation, and should meet the requirements of construction, installation, maintenance and installation of cables.
3、電纜橋架從正常環(huán)境穿墻進入防火、防爆的環(huán)境時，墻上應安裝相應的密封裝置，從室內穿墻室外時，在墻的外側應采取防雨措施。
3, the cable bridge from the normal environment through the fire, explosion-proof environment, the wall should be installed in the corresponding sealing device, from the interior through the wall to the outside, in the outer wall should be taken rainproof measures.
4、電纜敷設后，電纜橋架的撓度應不大于電纜橋架跨度的1/200。當電纜橋架的跨度≥6000mm時，其撓度應不大于電纜橋架的跨度的1/150。
4. After cable laying, the deflection of the cable tray shall be no more than 1/200 of the span of the cable bridge. When the cable bridge span is greater than or equal to 6000mm, the deflection should be less than 1/150 of the span of cable bridge.
5、電纜橋架與一般工藝管道交叉時，不小于300mm，與具有腐蝕性液體管道下方或具有腐蝕性氣體管道上方交叉時，應不小于500mm，與熱力管道交叉，熱力管道有保溫層時，應不小于500mm，無保溫層時，應不小于1000mm。
5, cable bridge and the general process of pipeline crossing, not less than 300mm, the corrosive gas pipeline above and below the cross pipe or corrosive liquids, shall not be less than 500mm, and the cross heat pipe and heat pipe with insulation layer, should be not less than 500mm, without thermal insulation, should not be less than 1000mm.
帶插口的母線槽，可通過插接頭箱或插接開關箱，能很方便地引出電源分路。母線槽具有體積小、結構緊湊、傳輸電流大、維護方便等優(yōu)點。
The bus duct with a socket can conveniently draw out the power supply through the socket head box or the plug-in switch box. The utility model has the advantages of small volume, compact structure, large transmission current, convenient maintenance, etc..
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