If a cabinet with a sink cost you inexpensively, then do not think that installing wiring will also be inexpensive. It is difficult to overestimate the importance of electrical wiring in the bathroom. In case of poor-quality installation in the future, it will be very difficult to remake it. If the house is in an old and dilapidated state, it is recommended to change all the wiring in the house at once, since the old wires were not designed for high power consumption. According to safety rules, the most flagrant violation is to put sockets for dryers, washing machines and any other appliances directly in the bathroom, since this error will lead to death if the electric current is closed! It should be considered a mistake when people think about protecting the bathroom by grounding it, but in most cases they do not ground it, but ground it. Some use sewers or heating pipes as grounding, but it is also prohibited to do this, this, firstly, will endanger other residents and, secondly, the wear of these pipes from stray currents will increase, and the pipes will rot very quickly.
Before laying the wiring, you need to make a plan on which you need to mark out sockets, conclusions, switches for a washing machine, as well as additional lighting and drying.
From branching of wires, all connections must be made in special boxes designed for connection.
