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Size
Value
Category
1
Performance Level (PL)
1)
c
MTTF
d
after 3 years
2)
54 years
1) The performance level is the result of the risk assessment
based on the percentage of risk mitigation achieved with the
control system‘s safety-related parts.
2) MTTF
d
= Mean time to dangerous failure
Содержание ZB12/XTOB BC1 Series
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