In process and plant engineering, mechanical components are increasingly being replaced by electronic components or controlled by them. This increases the number of electronic components and systems as well as the complexity and safety requirements.
Plant planners and operators know that the functional reliability of their safety-relevant processes is essential. This is because the law on technical work equipment and consumer products (Equipment and Product Safety Act - GPSG) stipulates that the burden of proof lies with the manufacturer in the event of damage. Manufacturers can take preventative measures by carrying out tests at an early stage - even during development - in accordance with international standards.
The system approach of IEC 61508 extends the technical requirements for individual complex devices to the complete safety installation from sensor to actuator, including the management framework conditions, and reduces uncertainties with complex systems in safety applications. The IEC 61508 life cycle model and the consistently requirements-orientated project approach counteract delays in system planning.
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