Calculation of bracket for cable tray in electrical shaft
8.10 cable bridge wiring 8.10.4 cable bridge horizontal laying, should be selected according to the load curve of the best span to support, span is appropriate for the 1.5 - cable bridge cable, 3m. Vertical laying, the fixed point spacing should not be 2m. Assuming that the height of the electrical shaft is 60 m and the fixed point spacing is 2 m, then the number of stents required is: (60/2) * 2 = 60 Assuming that the height of the electrical shaft is 60 m and the fixed point spacing is 1.5 m The number is: (60 / 1.5) * 2 = 80 mainly depends on the shaft height, and the bridge fixed point spacing,
Need to use welding machine, carbon rods, lead. Mold. I am afraid you can not get. Or find the battery!
You can add a little conductive objects in the middle, or direct use of electricity to play an eye, directly to the line through the connection is also OK. Choose your own! wish you happy!
Battery column damage can be repaired! But they are not good repair, looking for repair car repair master on the line, the general 10 yuan to get.