Title :
Self-checking safety interlock system
Author :
Zodeh, Oli M. ; Sikora, Donald S.
Author_Institution :
E.I. DuPont de Nemours & Co., Wilmington, DE, USA
Abstract :
A novel electrical self-checking interlock system for the petrochemical industry is discussed that meets the goals of eliminating fire, explosion, and chemical releases by providing more reliable safety shutdown systems. The design, operating principles, and performance characteristics of the microprocessor-based self-checking safety interlock system are described. With some modification the system can be programmed to verify functionality of the final interlock elements for additional safety improvement
Keywords :
chemical industry; microcomputer applications; petroleum industry; safety systems; chemical releases elimination; electrical self-checking interlock system; explosion elimination; fire elimination; microprocessor-based; petrochemical industry; safety shutdown systems; Chemical elements; Chemical industry; Control systems; Explosions; Fires; Inspection; Petroleum; Reliability; Safety; Switches;
Journal_Title :
Industry Applications, IEEE Transactions on
