丝绸2025，Vol.62Issue(7)：52-61,10.DOI:10.3969/j.issn.1001-7003.2025.07.006
高温带电作业屏蔽服内衬构成对热湿舒适性的影响研究
Effect of inner lining composition of high-temperature live-line working shielding suits on thermal and moisture comfort
摘要
Abstract
Workers involved in live-line maintenance of ultra/extra-high voltage alternating current and direct current transmission lines must wear specialized shielding suits to ensure safety.While these high-voltage shielding suits provide electromagnetic protection,they simultaneously restrict heat and moisture exchange between the body and environment.This restriction becomes problematic during summer operations,as accumulated metabolic heat and moisture can lead to heat stress,cognitive impairment,and health risks.Although existing suits largely meet safety requirements,substantial room for improvement remains regarding thermal and moisture comfort.Current designs typically prioritize electromagnetic isolation at the expense of thermal comfort,neglecting microclimate humidity management.When wearing shielding suits in high-temperature environments,workers experience elevated core temperatures and heart rates,creating significant physiological burden.Optimizing the thermal and moisture comfort of shielding suits improves workers' physiological and psychological conditions,enhancing comfort during extended operations.While moisture-wicking and unidirectional water-conducting fabrics have demonstrated promising performance in improving thermal comfort,research on humidity regulation within electromagnetic shielding suits remains limited.This study addresses this challenge by incorporating moisture-absorbing components into the liner structure to enhance thermal comfort. This study developed a system integrating unidirectional moisture-wicking fabrics with super-absorbent materials in a strategic arrangement.The experimental design compared four configurations:a control group without liner(0％absorption area,designated T1)and test groups with 30％(T2),40％(T3),and 50％(T4)moisture-absorbing coverage.Based on human perspiration distribution patterns,60％of the moisture-absorbing capacity was allocated to the upper body and 40％to the lower body.Performance evaluation included thermal manikin testing and human subject trials conducting standardized work protocols in controlled environmental conditions.This study applied a functional zoning approach to passive humidity management in shielding suits,optimizing the balance between thermal resistance and humidity control.Results showed that thermal resistance increased with moisture-absorbing coverage:from 1.41 clo(control group)to 1.55 clo(30％),1.66 clo(40％),and 1.68 clo(50％).The 40％and 50％configurations demonstrated superior humidity control in high-perspiration areas,with significantly reduced relative humidity compared to the control group.The liner effectively reduced moisture content in the flame-retardant layer.Subjective evaluations indicated that thermal sensation scores were inversely proportional to moisture-absorbing coverage,while thermal comfort reached optimal levels at 40％coverage,with limited additional comfort improvement at higher coverage rates.These findings suggest that the 40％configuration achieved the optimal balance between competing factors:providing sufficient moisture absorption capacity while avoiding excessive thermal resistance.This study provides valuable design guidelines for live-line workers'shielding suits,with major implications for improving operational efficiency and ensuring personnel safety.关键词
高温环境/带电作业屏蔽服/材料构成/热湿舒适性/吸水区面积/分区设计Key words
high-temperature environments/live-lineworking shielding suits/material compositions/thermal-moisture comfort/absorption area/functional zoning分类
轻工纺织引用本文复制引用
李红彦,薛萧昱,徐华雷,王云仪,刘森..高温带电作业屏蔽服内衬构成对热湿舒适性的影响研究[J].丝绸,2025,62(7):52-61,10.基金项目
国网吉林省电力有限公司科技项目(2023-40) （2023-40）
