基于弧形缓冲过渡的开关柜过门二次电缆布线研究

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关键词：开关柜仪表室；二次电缆；弧形缓冲过渡；机械疲劳；布线优化中图分类号：TM591 文献标志码：A文章编号：2095-8188（2025）07-0018-07DOI：10.16628/j.cnki.2095-8188.2025.07.003

Abstract：The mechanical fatigue issue of door-crossing secondary cables during the opening and closing of instrument compartment doors isaddressedbyproposinganoptimized wiring schemebasedonanarc-shaped buffer transition.By increasing the reserved length of door-crossing cables and implementing pre-bending treatment，aarcshaped flexible structure is constructed，achieving a 20% reduction in tensile strain and a 34% decrease in stress concentration values during cable movement.Cable harness flexibilityis efectively enhancedand insulation layer lifespan is extended.Simulation experiments and prototype verification results demonstrate thatthe proposed solution significantlyimprovestheuniformityofstraindistributionincableharnesses，providingboth theoreticalfoundations and practical guidance for ensuring the reliable operation of intelligent switchgear.

Key words：switchgear instrument compartment；secondary cable；arc-shaped buffer transition; mechanical fatigue；wiring optimization

0 引言

随着智能电网技术的快速演进，开关柜二次控制室（简称仪表室）内二次电缆规模成倍增长，致使仪表室内部空间布局日趋复杂，物理可操作性大幅下降[1]。（剩余8156字）