3.7　The Types of Equipotential Bonding

3.7.1　The mesh（M），star（S）and start-mesh mixed equipotential bonding of telecommunication system may be designed according to Fig.3.7.1.

Fig.3.7.1　Equipotential bonding structure of telecommunication system

____：Common earthing system of buildings；____：Equipotential bonding network；：equipment；ERP：Earthing reference point;：Connection of equipotential bonding network and common earthing system

3.7.2　The types of equipotential bonding for the telecommunication system shall be selected according to arrangement of telecommunication equipment，area of equipment room，noise immunity of telecommunication equipment and earthing mode inside the equipment.