基于在线PID 技术的气体监测电缆故障预警系统设计

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中图分类号：TQ336.5；TP277 文献标志码：A 文章编号：1001-5922（2025）06-0193-04

Abstract：Cable insulation materials usually contain organic substances such as polymers or rubber，which will gradually release volatile organic gases（VOC）after long-term use. Most VOC gases are flammable and explosive. Excessive concentration will cause fires and explosions in cable tunnels，which will lead to cable faults. In order to realize the online real-time monitoring of VOC gas in the cable tunnel，this paper studies the detection principle of PID photoion sensor，designs an online PID gas monitoring cable fault early warning system with PID photoion sen⁃ sor and GD32F405RGT6 chip as the core，and elaborates the composition of the early warning system，mainly in⁃ cluding the minimum system of single chip microcomputer，gas sampling circuit， alarm module，serial communica⁃ tion module and other units.

Key words：PID photoion sensor；VOC gas；GD32F405RGT6 single-chip microcomputer；online monitoring

根据传输的方式不同，电能的输送可大致划分为架空线缆输电与地下敷设电缆输电[1-2]。（剩余5591字）