Much More than SIL

• Autores: J. A. Castellanos
• Localización: Ingeniería química, ISSN 0210-2064, Nº. 434, 2006 (Ejemplar dedicado a: Achema'06), págs. 45-51
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • When designing a Safety Instrumented System (SIS) it is common sense to consider the Total Cost of Ownership (TCO), including both capital and operational expenses.

    1.Safety Standars & Safety Integrity Level (SIL) European Directive 96/82/CE ¿Seveso II¿ (and its modification directive 2003/105/CE) is applicable to all countries within the EU. It enforces some legal obligations to the industrial operators, such as the existence of a major-accident prevention policy or the production of a safety report [1]. There are also international standards that represent the state-of-the-art of the knowledge in the safety world. The appliance of these standards is not enforced by law, but is highly recommended as it will prevent legal issues and harmonizes the way safety is managed throughout the EU [2].

    The main safety standards available are the IEC 61508 and the IEC 61511 [3, 4], from the International Electrotechnical Commission, dedicated to the functional safety of electrical/ electronic/ programmable electronic safety-related systems.

    The IEC 61508 is usually called the ¿umbrella¿ safety standard as it applies to all sectors and is the more generic. It was written primarily for manufacturers of safety equipment. IEC 61511 is the specific standard for the process industry, and it applies to the system integrator and end users.