The equipotential coupling terminal box of the toilet was sealed by a bricklayer and tiled, so it do

There will be bad effects.

The equipotential terminal box is a collection box of equipotential connection, which has an equipotential connection bar, on which there are ground wires, lightning protection and protective grounding wires of each wall socket.

It is very useful, and now some construction personnel who do not understand electricity, greedy for the convenience of construction, sealed this box with cement, and will not be able to find it if you want to use it in the future.

Equipotential coupling terminal box in the bathroom. It is mainly used for grounding, the bathroom is damp, and there are many equipment and pipes, so the metal pipes, pipe fittings, valves, bathtubs, etc. must be grounded, for fear of the trouble caused by leakage.

Now these are omitted by the design and construction personnel who do not understand the usefulness of the equipotential coupling terminal box.

No, there's almost nothing there, most of it is a small copper bar connected to ground with a braided wire, don't worry.

It doesn't matter, you don't usually need it. The function of that thing is very simple, that is, to connect the grounding of bathing equipment and related sockets to the neutral line, so as not to induce electricity.

It doesn't matter, my family's is also sealed, it's useless.