If the electric tube with a piece of brick to go up the building, that wall to 300MM directly after the next box riser or there are other ways? 300 or more direct standpipe, then the wall can not build up the tube how to stand up, how fixed? Is the first box or the first tube, or a next? What's under the roof? Is the ceiling embedded in the roof or hoisting (lighting, sockets, integrated wiring)? How many millimeters are lifted under the roof? The above questions according to your construction experience to answer, do not control the drawings, the more detailed the better answer. Questions added: the above problems according to your construction experience to answer, do not copy from the Internet, because the Internet is very general do not understand. I am an electric line buried in the layman. More
Yes. The purpose is to prevent the cable from being affected by external forces.
May be the root of your graphics card cooling, if the hot weather you can open the left half of the chassis to run the computer, so the cooling effect is very good
Direct access to the cable cable protection pipe must use steel pipe, with the laying of the pipe see the instructions
