Addressing challenges such as extended cable lengths

numerous cables

and diverse cable types of electrical systems for split launching of shield tunneling machines

this paper thoroughly analyzes critical difficulties in the electrical system during split launching and takes a series of targeted solutions. By cataloging the quantity

length

specifications and model of extension cables

conducting insulation performance tests on signal cables of various models and functions

diagnosing short circuits and open circuits

laying and installing extension cables

and performing electrical system commissioning and troubleshooting

this study establishes a framework for electrical system installation

commissioning

and fault resolution under split launching conditions. These measures have demonstrated controllable costs and low failure rates during project implementation

providing reference and inspiration for similar split launching of shield tunneling projects.