Double-cabin cable pipe gallery 10kV outgoing line working well
By locally widening and deepening the municipal compartment and high-voltage compartment at the substation outgoing node, and setting up inspection holes and sump pits, the problem of unreasonable cable laying path allocation in the existing technology has been solved. This has enabled efficient use of underground space and orderly separation of cable paths, reduced civil engineering and equipment costs, and improved construction and maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN ROAD & BRIDGE SURVEY & DESIGN INSTITUTE CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-24
AI Technical Summary
In existing substations, there are problems with the allocation of laying paths for 110kV and 10kV cables. Furthermore, the construction cost of traditional power tunnels is high, and existing technologies have failed to effectively address the unreasonable utilization of underground space, resulting in high civil engineering costs.
The design adopts a dual-compartment cable tunnel, with the municipal compartment and high-voltage compartment being widened and deepened at the outgoing node. It is equipped with maintenance access holes and water collection pits, and provides reserved holes for 10kV cable outgoing lines, eliminating the need for the construction of independent power tunnels and realizing the separation and efficient conversion of cable paths.
It saves valuable vertical underground space, reduces civil engineering and equipment investment, improves construction and maintenance efficiency, reduces cable failure risk, and enhances system safety and stability.
Smart Images

Figure CN224549201U_ABST