Turvasätted

Turvasätted is a term used in Nordic contexts to denote safety settings or safety arrangements within equipment and systems. It refers to the configuration and deployment of measures that govern how a device operates, how hazards are mitigated, and how access to dangerous functions is controlled. Turvasätted encompass both technical controls and procedural practices designed to prevent harm to users and operators.

In practice, turvasätted include hardware safeguards such as protective guards, safety interlocks on access doors, emergency-stop devices, and shielded enclosures; software safeguards like safety-related control logic, fail-safe modes, interlock logic, authentication and access controls, and safe shutdown sequences; and procedural safeguards such as lockout/tagout procedures and maintenance scheduling. Proper implementation considers the specific hazards, exposure, and potential failure modes of the system.

Design and management of turvasätted follow the safety lifecycle and rely on international standards and risk assessment. Common references include ISO 12100 for risk assessment and reduction, EN ISO 13849-1 or IEC 62061 for functional safety of machinery, and IEC 61508 for functional safety of electrical/electronic/programmable systems. The robustness of turvasätted is often described using performance metrics like PL (Performance Level) or SIL (Safety Integrity Level), assigned according to the risk associated with potential failures.

Applications of turvasätted span industrial machinery, process automation, elevators, and other safety-critical systems, as well as certain consumer electronics and building automation. When properly specified and maintained, turvasätted reduce the likelihood of accidents, limit potential harm, and support regulatory compliance. Etymologically, the term reflects safety-related settings or arrangements used to enhance overall system safety in Nordic contexts.