استاندارد ذخیره انرژی 61508

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What is IEC 61508?

IEC 61508 is an international standard published by the International Electrotechnical Commission (IEC) consisting of methods on how to apply, design, deploy and maintain automatic protection systems called safety-related systems.

What is a safety integrity level in IEC 61508?

IEC 61508 sets four Safety Integrity Levels (SILs). SIL 1 is the lowest and SIL 4 is the highest level of safety integrity. Each SIL has a specified target failure measure. The target SIL of the safety function(s) determine the measures that need to be taken in the design of the safety-related system.

Does IEC 61508 apply to low complexity E/E/PE safety-related systems?

The basic safety publication status of IEC 61508 described above does not apply in the context of low complexity E/E/PE safety-related systems. These are E/E/PE safety-related systems in which the failure modes of each individual component are well defined and the behaviour of the system under fault conditions can be completely determined.

What is Annex A of IEC 61508-6?

Annex A of IEC 61508-6 gives an eight-page overview of the requirements in IEC 61508-2 and IEC 61508-3. In IEC 61508-2, the E/E/PE system safety lifecycle requirements contained in clause 7 are summarised in a lifecycle diagram in figure 2, with an overview of each phase in table 1.

What is HFT in IEC 61508?

H is a new concept for IEC 61508. It requires clearly supported and validated information to be used. A note indicates that HFT is the preferred solution to achieve the required confidence that a robust architecture has been achieved. If Route 2 is selected then reliability data used for quantifying the