Local equipotential bonding in the bathroom

Local equipotential bonding refers to making another equipotential bonding in accordance with the requirements of the general equipotential bonding within a local area of ​​the building,
such as on a certain floor of the building or in a certain room (such as in a bathroom with a high risk of electric shock) Equipotential connections made.
    The bathroom is a humid place and safety is particularly important. The local equipotential connection in the bathroom is as shown in the figure