How Hisense TV boot is no signal can not enter the TV program
The cables are covered. Laying methods include overhead, pipe, bridge, buried and so on.
According to the national mandatory standard GB-2011 "low-voltage power distribution design specifications" provides: 7.2.14 the same path without interference requirements of the line can be laid in the same metal pipe or metal tank box. The total cross-sectional area of the wire within the metal conduit or metal tank should not exceed 40% of its cross-sectional area and the wire conductor should not exceed 30. 7.2.15 Control, signal and other non-electric circuit wire laying in the same metal pipe or metal box, the total cross-sectional area of the wire should not exceed 50% of its cross-section.
It seems not only the bathroom any room is not allowed to walk in the wall inside the wall also have to add a set of PVC pipe to give the cooling space