There is an equipotential box in the bathroom, which cannot be touched, what is it for, is it ground

The equipotential box is: equipotential coupling terminal box; Equipotential bonding technology is the main means to prevent electric shock accidents in low-voltage distribution systems.

His role is:

In the bathroom, all kinds of metal pipes, steel bars in the floor slabs, as well as protective wires entering the toilet and electrical equipment housings are connected with 40 4 mm hot-dip galvanized flat steel or 6 square mm copper core wires. The bathroom is generally equipped with a bathtub or shower basin, so the possibility of electric shock in the bathroom is very high, and the bathroom has repeatedly been bathed by electric shock accidents, resulting in personal injury, this is because people are soaked all over the body in the shower, and the human body impedance is greatly reduced, and it is introduced into the bathroom along the metal pipe.

1. Twenty volts is enough to cause ventricular fibrillation and death, for this reason, local equipotential bonding in the bathroom helps to reduce the potential difference, effectively ensure personal safety, which is very worthwhile.

The full name is "equipotential connection terminal box", which is to connect all metal structures (steel bars, metal frames, metal pipes, etc.) inside the entire building together to form equal potentials, so that the potentials of all points in the room are equal when leakage, so that no current will be generated (no potential difference).

When you install new electrical equipment, you can connect the connector of the electrical enclosure and terminal box with the above copper wire to ensure safety.

High-end buildings must have equipotential connections to ensure the safety of their occupants. In the bathroom, you can connect the equipotential connection terminal (in the connection box) to the housing of the electric water heater and washing machine, so that even if there is a leakage, it will not cause harm to people, and you can take a bath with the electric water heater without worrying about it.

To put it in layman's terms: even if your electric water heater shell or water outlet leaks, you will not be electrocuted when you take a shower or touch it with wet hands!

In short, equipotential is to connect all parts of your position through the line to make their potential equal, so as to play a role in preventing electric shock. Electric shock refers to the fact that the human body is subjected to a certain voltage (potential difference), and a certain current is passed through the human body, and the equipotential can make the potential difference that the human body bears close to zero.

What is the toilet equipotential used for? Don't underestimate it, the last line of defense against electric shock.

It is used to make lightning protection and grounding equipotential.