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Defeating safety interlocks in control systems can present a significant safety hazard to personnel and equipment. Considerations in the development of a corporate safety system override (SSO) procedure are discussed. The procedure can significantly reduce the likelihood of injuries and equipment damage. Objectives of the SSO procedure are given, and the SSO system design is discussed. Monitoring...
The first objective of this paper is to describe the relationship between electric and magnetic field coupling to metallic circuits. Conditions for which one or the other dominates are outlined. Following this, a discussion of why the longitudinal electric field (LEF) can be used to calculate magnetic coupling is given. The second objective of this paper is to summarize the differences between electric...
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