Page 55 - 电力与能源2024年第一期

第 45 卷 第 1 期 电力与能源
2024 年 2 月 49

DOI：10.11973/dlyny202401010
电网技术

非开挖用改性聚丙烯电缆保护管检测数据分析

与性能优化

隽永飞 ，邓洪冈 ，瞿珽华 ，蒋建杰 3
2
2
1
（1. 国网上海市电力公司电力科学研究院，上海 200433；
2. 上海恒能泰企业管理有限公司，上海 200120；
3. 上海运邦信息科技有限公司，上海 200437）

摘 要：以非开挖用改性聚丙烯（MPP）电缆保护管的试验检测结果为样本，对保护管各项检测指标与标准要
求之间的相对差值进行了计算，并以此对 MPP 保护管的质量控制以及现有标准要求的优化措施进行了分析
研究。结果表明：目前的生产技术已基本能够满足标准中对 MPP 保护管壁厚、环刚度、不圆度、耐外冲击等指
标要求；当应用场景对保护管力学性能具有更高要求时，可以通过适当增加保护管壁厚的方式来提高相应性
能；针对试验检测结果中达标率较低的保护管最大内径尺寸和维卡软化温度，除了进一步优化保护管的成分
配比和制备工艺。适当放宽标准中对 MPP 保护管最大内径尺寸上限值的要求，或许是优化现有标准并提升
保护管性能的一个可行方法。
关键词：聚丙烯电缆保护管；试验检测；标准优化
作者简介：隽永飞（1993—），男，博士，从事电力设备质量监督工作。
中图分类号：TM247 文献标志码：A 文章编号：2095-1256（2024）01-0049-06
Analysis of Testing Data and Performance Optimization of Modified Polypropylene
Cable Protection Tube for Non Excavation Use

2
1
2
JUAN Yongfei ，DENG Honggang ，QU Tinghua ，JIANG Jianjie 3

（1.State Grid Electric Power Science Research Institute，SMEPC，Shanghai 200433，China；

2.Shanghai Hengnengtai Enterprise Management Co.，Ltd.，Shanghai 200120，China；

3.Shanghai Yunbang Information Technology Co.，Ltd.，Shanghai 200437，China）

Abstract：Based on the experimental results of non-excavation modified polypropylene (MPP) plastic cable pro⁃
tection pipes, the relative differences between the various detection indicators of the protection pipes and the stan⁃
dard requirements were calculated. Based on this, the quality control of MPP protection pipes and the optimiza⁃
tion measures required by existing standards were analyzed and studied.The results show that the current produc⁃
tion technology can basically meet the requirements of the standard for the wall thickness, ring stiffness, out of
roundness, and external impact resistance of MPP protective pipes. At the same time, analysis indicates that
when the application scenario has higher requirements for the mechanical properties of protective pipes, the corre⁃
sponding performance can be improved by moderately increasing the wall thickness of protective pipes.In response
to the low compliance rate of the maximum inner diameter size and Vicat softening temperature of the protective
tube in the experimental detection results, in addition to further optimizing the composition ratio and preparation
process of the protective tube, moderately relaxing the requirements for the upper limit of the maximum inner di⁃
ameter size of MPP protective tube in the standard may be a feasible method to optimize the existing standards
and improve the performance of the protective tube.

Key words：polypropylene cable protective tube，experimental testing，standard optimization

在电力电缆工程建设和实际应用中，对电缆 保护材料的选择是确保电能传输安全的关键环