门式起重机大车电缆的安装
Installation of cable for gantry cranes
门式起重机和装卸桥的大车如采用电缆供电，则电缆在地面的固定点*好以大车行程的终点为原点，当起重机从中点向两端运行时为放缆（或用弹簧）。
Gantry crane and crane cart as the power cable, the cable is fixed in the ground to travel to the best end point of origin, when the crane from the center to the ends of the runtime for cable (or spring).
电缆在地面上的固定，应有能是电缆左右倒向的固定弯夹，具体尺寸可由使用单位根据所选用的电缆规格进行设计。轴销的直径可取40~50mm.可利用尺寸与电缆相适应的无接缝钢管或水煤气管制造弯夹。混凝土基座的位置与安装在起重机下端梁或支腿上的导向滑轮的位置相适应。电缆与弯夹之间，要垫上衬垫物，以防损坏电缆。电缆应在弯夹中夹紧，防止拉开电缆接头。电缆接线头与弯夹之间要保持一定的距离，使电缆处于松弛状态。
The cable shall be fixed on the ground, and there shall be fixed bending clamps which can be turned back and forth to the cable. The specific size can be designed by the use unit according to the selected cable specifications. The diameter of the axle pin is desirable, and the 40~50mm. can be made of a seamless steel pipe or a water gas pipe with dimensions corresponding to the cable. The position of the concrete base is adapted to the position of the guide pulley mounted on the lower beam or support leg of the crane. Between the cable and the bending clip, the padding should be put in case of damaging the cable. The cable shall be clamped in the bending clamp to avoid pulling out the cable joint. A certain distance should be kept between the cable terminal and the bending cable, so that the cable is in a slack state.