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  2. Safety instrumented system - Wikipedia

    en.wikipedia.org/wiki/Safety_instrumented_system

    An SIS performs a safety instrumented function (SIF). The SIS is credited with a certain measure of reliability depending on its safety integrity level (SIL). The required SIL is determined from a quantitative process hazard analysis (PHA), such as a Layers of Protection Analysis (LOPA). The SIL requirements are verified during the design ...

  3. Safety integrity level - Wikipedia

    en.wikipedia.org/wiki/Safety_integrity_level

    In functional safety, safety integrity level (SIL) is defined as the relative level of risk-reduction provided by a safety instrumented function (SIF), i.e. the measurement of the performance required of the SIF.

  4. Safe Torque Off - Wikipedia

    en.wikipedia.org/wiki/Safe_Torque_Off

    The STO function is the most common and basic drive-integrated safety function. It ensures that no torque-generating energy can continue to act upon a motor and prevents unintentional starting. [ 1 ]

  5. Automotive Safety Integrity Level - Wikipedia

    en.wikipedia.org/wiki/Automotive_Safety...

    Automotive Safety Integrity Level (ASIL) is a risk classification scheme defined by the ISO 26262 - Functional Safety for Road Vehicles standard. This is an adaptation of the Safety Integrity Level (SIL) used in IEC 61508 for the automotive industry. This classification helps defining the safety requirements necessary to be in line with the ISO ...

  6. High-integrity pressure protection system - Wikipedia

    en.wikipedia.org/wiki/High-integrity_pressure...

    HIPPS is an instrumented safety system that is designed and built in accordance with the IEC 61508 and IEC 61511 standards. The international standards IEC 61508 and 61511 refer to safety functions and Safety Instrumented Systems (SIS) when discussing a device to protect equipment, personnel and environment.

  7. Process plant shutdown systems - Wikipedia

    en.wikipedia.org/wiki/Process_plant_shutdown_systems

    The safety shutdown system shall shut down the facilities to a safe state in case of an emergency situation, thus protecting personnel, the environment and the asset. The safety shutdown system shall manage all inputs and outputs relative to emergency shutdown (ESD) functions (environment and personnel protection).

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  9. Safety management system - Wikipedia

    en.wikipedia.org/wiki/Safety_management_system

    An occupational safety management system (OSMS) is a management system designed to manage occupational safety and health risks in the workplace.If the system contains elements of management of longer-term health impacts and occupational disease, it may be referred to as a occupational safety and health management system (OSHMS) or occupational health and safety management system (OHSMS).

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