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TECHNICAL BRIEFS

Missed Opportunities—Strategy and Procedures for Testing Alarm and Shutdown Devices

[+] Author and Article Information
P. S. Koelle

Amoco Chemicals Corporation, Chicago, Ill. 60601

J. Energy Resour. Technol 104(2), 186-190 (Jun 01, 1982) (5 pages) doi:10.1115/1.3230398 History: Received November 14, 1979; Revised October 14, 1981; Online October 22, 2009

Abstract

Loop testing of safety devices during operation improves plant performance, reduces downtime of process-dependent rotating equipment, and enhances training of personnel. Designers, manufacturers, staff engineers, and plant personnel are always concerned with improving the efficiency and reliability of process equipment. An unscheduled shutdown caused by breakdowns or accidents involving machinery may result in millions of dollars in unrecoverable losses, because the capacity of rotating equipment has increased to a point where temporary replacements to enable the plants to continue their production are hard, or even impossible, to find. The paper will discuss how accidents may be prevented and outline a systematic approach to checking alarm and trip circuits.

Copyright © 1982 by ASME
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