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Intrinsic Safety at Underwriters' Laboratories
IEEE Transactions on Industrial Electronics and Control Instrumentation, 1973The Underwriters' Laboratories has been investigating intrinsically safe equipment for use in hazardous locations for many years. It has recently published a Standard for Intrinsically Safe Circuits and Equipment, UL913. This presentation traces the development of the intrinsically safe requirements from the initial outlines to the printed Standard ...
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New insights concerning intrinsic joint elasticity for safety
2010 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2010In this paper we present various new insights on the effect intrinsic joint elasticity has on safety in pHRI. We address the fact that the intrinsic safety of elastic mechanisms has been discussed rather one sided in favor of this new designs and intend to give a more differentiated view on the problem.
Sami Haddadin +3 more
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SEPARATION FAULT SCENARIOS IN INTRINSIC SAFETY CIRCUITS
Environmental Engineering and Management Journal, 2019The intrinsic safety type of protection significantly increased in complexity during the last decades. Thus, it even provides the opportunity to use highly complex electronic circuits without involving a significant explosion risk within the oil industry or in power plants, but not limited to those two. In order to achieve this performance, the type of
Marius Darie +4 more
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Evaluation of Systems for Intrinsic Safety
1966Evaluation of a system, i.e., equipment and associated wiring, to determine whether it is intrinsically safe in accordance with the requirements of ISA Recommended Practice RP12.2, is not, and cannot be, a “cookbook” procedure. ISA RP12.2 adequately states the essential energy limitations and specifies the considerations of failure against which to ...
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An intrinsic safety PLC with a graphic programming environment
IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200), 2002An intrinsic safety PLC has been developed. This PLC has been built to be used in dangerous environments, such inside mines, where there are risks of explosions. A MC68000 microprocessor has been used as the processor and the PLC incorporates a security system based on the use of fiber optics and the MC68HC11E2 microcontroller.
C. Blanco +4 more
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Intrinsic safety: explosion proof circuitry
IEEE Technical Applications Conference and Workshops. Northcon/95. Conference Record, 2002When installing electrical circuits in hazardous locations, some form of explosion protection must be used in the United States and Canada. The traditional method has been to install these systems in explosion proof enclosures and sealed conduit. Since this type of production has proven to be expensive to install and maintain, many users have turned ...
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IMPEDANCE SPECTROSCOPY ANALYSIS OF INTRINSIC SAFETY CIRCUITS
SGEM International Multidisciplinary Scientific GeoConference� EXPO ProceedingsThe paper presents issues regarding impedance spectroscopy analysis for the identification of intrinsically safe circuits. The first part of the paperwork presents the explosion risk. In industrial applications, the presence of flammable substances leads to additional requirements for technical equipment used in such spaces.
Marius DARIE +4 more
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