Personally, I think it is unnecessary to have a single pipe and line for water and electricity.
Household circuits are low-voltage circuits. The general requirement for low-voltage circuits is that when laying out circuits at home, they should be arranged in separate circuits. Because they belong to the same voltage level, the circuits at home generally use the same wiring in the same circuit, and each wiring should try not to exceed 4. Then place other types of wires separately. Therefore, there cannot be a single pipeline single line. This is because there are four problems that can arise with a single line of pipe:
There may be a lot of wiring in the walls or floors. The presence of a large amount of wiring is bound to come with grooves. Everyone knows that if you make large grooves in the wall, the wall may crack. It's the same thing on earth. So this arrangement method is completely inconsistent with the wiring specifications.
Does not meet wiring requirements. When installing wires, we will find that whether our wiring is ultimately connected to the distribution box or the bottom box of the outlet switch, the bottom box generally has a hole. However, if we have more than three wires running at once, they cannot be connected to our switch or outlet back box. Ultimately, once our wires were routed through, they were difficult to connect to the base box, making it impossible to install effectively.
Wiring confusion is easy to occur. Because we use a single line, you can find a lot of wiring when laying out the home. This results in a mess of connecting circuit wires after the cord is used up. Because this is most likely to happen when placing multiple lines. Therefore, even from a work perspective, a single pipeline and a single line cannot be used.
This violates the circuit deployment principle. For domestic circuits, generally the conductors required for the same circuit will be routed in the same wiring or slot whenever possible. Also, for wires with the same voltage rating, install them in the same slot as the pipe if possible. Instead of requiring all wires to be installed separately. Therefore, a single pipeline and a single line cannot meet the circuit layout requirements.
As for the so-called single tube and single line, it is best not to appear in the home. Not only will it waste a lot of money, but its practicality is very poor. In the later stage, it may lead to chaos in the power connection and seriously affect the electricity consumption in our families.