高压电器2018，Vol.54Issue(8)：60-64,5.DOI:10.13296/j.1001-1609.hva.2018.08.010
温湿度对户外设备凝露现象的影响研究
Study on the Influence of Temperature and Humidity on the Condensation of Outdoor Equipment
摘要
Abstract
Owing to long-term work in high temperature and high humidity or low temperature and high humidity, outdoor equipment can easily format condensation, which harms the normal operation of the circuit devices. In view of the above phenomena, a true switch cabinet condensation test system is set up in the artificial climate chamber, the condensation formation time under different temperature difference and relative humidity is recorded, and the temperature of the inner wall of the cabinet is measured when condensation is unformed. The results show that, the condensation formation time is influenced by temperature difference and relative humidity, when the relative humidity is constant, the greater the temperature difference, the shorter the time of condensation formation;however, when the temperature difference is constant, the higher the relative humidity, the shorter the time of condensation formation;and the dew point temperature is always higher than the surface temperature of the object. Finally, the methods of reducing the temperature difference and relative humidity, and controlling the device temperature above the dew point temperature are proposed to avoid the condensation phenomenon, which can provide some references of preventing condensation for practical engineering.关键词
户外设备/试验系统/凝露时间/温差/相对湿度/露点温度Key words
outdoor equipment/experiment system/condensation time/temperature difference/relative humidity/dew point temperature引用本文复制引用
郭沁,张炜琦,郭雨,汪司珂,刘云鹏..温湿度对户外设备凝露现象的影响研究[J].高压电器,2018,54(8):60-64,5.基金项目
国家电网公司科技项目 (5202231402LB).Project Supported by Science and Technology Project of State Grid (5202231402LB). （5202231402LB）
