摘要
从工程角度阐述了"nL"能量限制防爆技术的基本概念,技术特点,回路评定方法及在2区的应用。对能量限制技术和本安防爆技术的异同进行了阐述;对"nL"型限能设备在现场总线系统中的应用做了简要介绍;最后,对"nL"能量限制和本安防爆技术的最新发展———"ic"防护等级本安防爆技术进行了介绍。
Basic concept, technical features, circuits assessment and application in Zone 2 area of ＂nL＂ energy limitation explosion-proof technique are introduced from the engineering point of view. The similarities and differences of energy limitation and intrinsic safety explosionproof technique are expatiated. Application of ＂nL＂ energy-limited apparatus in fieldbus system is briefly introduced. The latest development of ＂nL＂ energy limitation and intrinsic safety explosion-proof technique of ＂ic＂ intrinsic safety level of protection is described.
level
出处
《石油化工自动化》
CAS
2012年第1期28-32,共5页
Automation in Petro-chemical Industry
关键词
爆炸性气体危险场所
防爆技术
能量限制技术
限能回路评定
防护等级
dangerous area of explosive gas
explosion-proof technique
energy limitation technique
energy-limited circuit assessment
protection
