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No need to dismantle. Wrap the thread and cover it with a wire box.
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It is recommended that you keep it, otherwise it will be very troublesome when you use it.
Wrap the thread, wrap a few more layers, and then seal it is generally fine, remember to use waterproof tape!!
Not only the plug between the bathroom and the kitchen is three-wire, as long as the electrical appliances and shells with a little higher power have conductors, and the conductor parts may be charged for various reasons, the electrical appliances need three-wire plugs, so that once the shell is live, the leakage protector can act to cut off the power supply to protect the safety of people and the electrical appliances from being damaged.
Change to a 16A panel, and the holes should be larger. According to the standard water heater circuit, 4 square wires are used to directly distribute the box. Take a look at the thickness of the wiring inside, the general socket wire is square, and it is overloaded to directly connect to the water heater, and there are potential safety hazards in long-term use. >>>More
Of course, you can, after the change, it is OK to restore the tile decoration.
The line of the bathroom can be lit with square meters, but the socket is not, and there will be hair dryers, hot water, bath bombs, etc. The square copper wire is about the same (good quality copper wire is required, and the bad one is not good). It's troublesome to have a problem after installing it.