Tubes are very important for every installation,because can protect the cables from damages and also provides extra stamina to them.The choose of tubes depends on the size of cables.So it is important for cables to be inside tubes.

The image show us a domestic installation with tubes.First and foremost it is necessary to make room for tubes by digging the bricks with suitable tools like compressor!After this we use concrete in order to incorporate tubes into bricks.Also there is a video which indicates complete installation of tubes.