论文部分内容阅读
在石油、化工、制药等企业,有一些存在爆炸性气体(蒸气)混合物的危险场所,在这些场所,由电气火花、电器表面的强度以及机械摩擦和撞击产生的热量与火花都能引起爆炸。所以,在爆炸性气体混合物存在的场所使用的电梯必须具有可靠的防爆性能.一般称这些具有防爆性能的电梯为防爆电梯。我国长期以来没有防爆电器设备方面的国家标准,直到GB 50058—92《爆炸和火灾危险环境设计规范》实施,防爆电梯的检验才有了指南。防爆电梯除按一般电梯技术标准检验外,还应按GB 50058—92《爆炸和火灾危险环境设计规范》检验整机和部件的防爆性能。要注意的是,在检验中使用的仪器和工具也应符合相应的防爆要求。下面就如何检验
In petroleum, chemical, pharmaceutical and other industries, there are hazardous locations where there is a mixture of explosive gases (vapors), where heat and sparks caused by electrical sparks, electrical surface strength, and mechanical friction and impact can all cause explosions. Therefore, elevators used in the presence of explosive gas mixtures must have a reliable explosion-proof performance.Generally referred to these explosion-proof elevator elevator explosion-proof. Our country has no national standards for explosion-proof electrical equipment for a long time, until the GB 50058-92 “Design Code for Explosion and Fire Hazardous Environment” implementation, there is a guide for testing explosion-proof elevator. Explosion-proof elevators in addition to general technical standards for testing elevators, but also according to GB 50058-92 “Design Code for Explosion and Fire Hazard Environment” test machine and parts explosion-proof performance. It should be noted that the instruments and tools used in the inspection should also comply with the appropriate explosion-proof requirements. Here’s how to test