I would like to ask, if it is strong power, threading can walk a few lines. Some people say let me see live water and electricity transformation, obviously a tube can take three lines, they have to go one, so invisible increase the cost. But if they are strong, then, is not it can also take a tube to take three lines? Or that a strong tube can only take a more line
Strong three, weak single tube single, which is a regular approach
Go 3 with no problem if the cost can be considered single line do not listen to decoration company fool you
There is no requirement. Normally, the total cross-sectional area of the pipe line is not greater than 50% of the cross-sectional area of the pipe. And the specification of such requirements only for future maintenance when the line for easy line. A threading tube only wear a wire, it is not to open the wall are full of trough ...
It is better to suggest a three-wire approach. Tube wear too much wire, the use of electrical equipment, the wire will heat, causing burning, too dangerous. Matters added: the wire in the use of the process will produce a certain amount of heat. If a wire tube into too many wires, will make the wire lack of adequate cooling space, over time there is a security risk. Often, it is better for the wire to penetrate the line after not exceeding 40% of the total space capacity. 40px conventional wire casing to go 2.5 square wire generally three better, too many lines will affect the wire in the high-power state of the heat. Wire in the normal working conditions allow the temperature rise within 65 degrees Celsius, not too high, otherwise it will affect the life of the wire, if a thread in the threading more, it is necessary to maximize the maximum allowable power load to reduce the situation to To ensure safe use of electricity. Threading also should pay attention to, into the wire of the wire can not have a connector. That is, to penetrate a whole wire. If you find the construction side of the wire into the line should be promptly corrected. Otherwise the virtual network caused by air open frequent frequent gates, the reason that is not easy to identify is not easy to repair.
