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内线施工方法[1]电线管工程1.暗管和明管配线工程明管和暗管敷线方法是将绝缘导线敷设在管内,管子可明敷于建筑物结构表面,也可埋设于灰泥层下面、地板内以及板壁或天花板内。这种敷线方法比较安全可靠,可避免火灾和机械损伤,适用于易引起火灾或爆炸的地方。缺点是费用高,检修困难。明、暗敷设的铁管均应采用镀锌铁管或涂其它防锈物质的铁管,管壁厚度不小于1毫米,并应有良好接地。穿管导线应采用耐压500伏的绝缘线,其截面为铜线不小于1毫米~2,铝线不小于2.5毫米~2,不同电路的
Inner Line Construction Method [1] Wire and Cable Works 1. Pipe and Light Pipes Wiring The light and dark pipes are laid by laying insulated wires inside the pipes. The pipes can be applied to the surface of the building structure or embedded in the ash. Under the mud, in the floor, and in the siding or ceiling. This kind of threading method is safe and reliable, can avoid fire and mechanical damage, and is suitable for places that are likely to cause fire or explosion. The disadvantages are high costs and difficult maintenance. The iron pipes laid in the dark and the dark shall be made of galvanized steel pipes or iron pipes coated with other anti-rust substances. The wall thickness shall not be less than 1 mm, and shall be well grounded. The pipe-wound conductors shall be insulated wire with a withstand voltage of 500 volts. The cross-section shall be no less than 1 mm2 for copper wires and not less than 2.5 mm2 for aluminum wires. Different circuits shall be used.