于学亮(四川省中锦工程咨询有限公司,成都市 610041)
也谈事故风机(于学亮)
Further Discussion about Emergency Fan
YU Xueliang(Sichuan Zhongjin Engineering Consulting Co.,Ltd.,Chengdu 610041,China)
Abstract: Based on the study of the article Discussion about Emergency Fan in the 4th issue of Building Electricity in 2017,different views are put forward on the power supply and overload protection of emergency fan mentioned in the article.
Key words:emergency fan;power supply;poisonous or explosive gas atmosphere;load level;overload protection;alarm setting value;lower explosive limit;flameproof enclosure
摘 要:通过对《建筑电气》2017年第4期《小议事故风机》一文的学习,对其中提到的事故风机的供电电源、事故风机的过载保护问题提出不同观点。
关键词:事故风机;供电电源;有毒或爆炸性气体环境;负荷等级;过载保护;报警设定值;爆炸下限;隔爆外壳
中图分类号:TU834.27 文献标识码:A
doi:10.3969 / j. issn.1003 - 8493.2021.04.012