The importance of equipotential link-up in architectural power supply design & Low-voltage power distribution

Equipotential link - up is one of the important measures for preventing electric accident in the low - voltage power distribution system as well as for lightning and earth leakage protection. Through analysis of TN system, this paper proves that equipotential link - up will significantly lower the contact voltage when there is a malfunction, and must be widely used in architectural power supply design and low - voltage power distribution.