摘要
介绍本质安全系统的构成,分析电缆传输距离对于本质安全系统安全性的影响;对于隔爆系统,以隔爆电磁阀为例,明确电缆传输距离带来的线路压降对仪表工作性能的重要影响,列举工程应用实例,提出在工程设计中要考虑不确定因素。
The composition of intrinsically-safe system is introduced and the effect of cable transmis sion range on the safety of intrinsically-safe system analyzed;by taking the solenoid valve of explosion suppression as an example the important effect of circuit voltage-drop brought forward by the cable transmission range on the instrument service behavior is definite;the application examples are listed and some uncertainty to be considered in the engineering design suggested.
出处
《大氮肥》
CAS
2012年第4期275-277,281,共4页
Large Scale Nitrogenous Fertilizer Industry
关键词
仪表信号
电缆传输距离
本质安全系统
隔爆系统
压降
instrument signal
cable transmission range
intrinsically-safe system
explosion suppression system
voltage drop
