HomeTechnical ArticlesHigh-Temperature Performance Optimization and Cable Current Carrying Capacity of MPP Power Protection Pipes ——Power Cable Protection Applications Based on DL/T 802.11 Standard
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High-Temperature Performance Optimization and Cable Current Carrying Capacity of MPP Power Protection Pipes ——Power Cable Protection Applications Based on DL/T 802.11 Standard
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Post by by 孙飞虎
1. Research Background
MPP (Modified Polypropylene) power protection pipesoccupy58%of10kV-35kV cable protection(2024 China Electricity Council), but facetwo bottlenecksunder high load:
>60℃long-term temperature causes>5% thermal deformation, hindering heat dissipation
Low thermal conductivity0.2W/(m·K)reduces cable current capacity by22%vs. direct burial
Paraffin/graphite PCM(Figure 4) controls temperature vialatent heat absorption, increasing current capacity by25%.
7.2 Smart Temperature Monitoring Pipe
Distributed fiber temperature sensorsmonitorcable temperature(±0.5℃ accuracy) for overload alerts.
ConclusionThis paper optimizes high-temperature performance throughmaterial modification + structural innovation + current calculation. As a professional supplier, we provide:✅ High-thermal MPP power pipes (dn50-dn200mm)✅ Cable current capacity assessment✅ Third-party thermal testing reports
Keywords: MPP power protection pipe, high-temperature performance, thermal modification, cable current capacity, DL/T 802
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