This paper introduces several safety protection devices, such as TJB high-voltage cable couplers, high-voltage insulation, ground continuity monitor and insulation monitor.

介绍其中的几项保护装置，如TJB高压电缆快速接头、高压电缆绝缘及接地线连续保护装置、低压母线绝缘监视装置在TBM上的应用。