Regarding the statistical criteria for the interlock operation rate, is it calculated based on conditions and bypass switches? What do others do in this regard?
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This post was last edited by 328104062 on 2015-6-15 11:30. As the title suggests: I would like to know the methods and criteria used by various manufacturers to calculate the utilization rate of interlocks. How does everyone calculate this utilization rate? 1. Statistics are to be conducted based on conditions. So, what exactly constitutes a condition? How do people define conditions? How can the noun \"condition\" be explained? For a 3-out-of-2 interlock, is it considered one condition, two conditions, or three conditions? 2. Counting based on the bypass switch. 3. Which of the above counting methods do you think is more reasonable? How do you conduct the counting?
I think it is reasonable to conduct statistics based on a complete interlock circuit; a single gauge or a single interlock condition cannot represent the full interlock requirements.
If we conduct the statistics based on complete interlock circuits, then please explain: what is a “complete interlock circuit”? That is, what kind of circuit constitutes a complete interlock circuit? For example, if 5 conditions can all lead to the same interlock action (i.e., the same valve action as part of the interlock), should these 5 conditions be considered as one interlock circuit or 5 separate interlock circuits?
For example, if 5 conditions can all lead to the same interlock action (i.e., the same valve action as part of the interlock), should these 5 conditions be considered as one interlock circuit or 5 separate interlock circuits? 5 conditions + one interlock action – this constitutes a complete interlock circuit!
Then we can just count the number of SQR set/reset registers, right? The key is how to count the number of loops; it’s a bit unclear
The definition of our company is as follows: Interlock alarm circuits and circuit instruments: These are instrument circuits that consist of N detection elements, measuring instruments, alarms, and interlock actuators, and they serve to protect a specific device or process. They are counted as part of one interlock alarm system with N such circuits in total. All the instruments and accessories that make up an interlock alarm circuit are counted as part of the instrument components for that interlock alarm circuit.
It should be calculated based on circuits; three-out-of-two should count as one
I haven’t calculated it; I want to learn *learn*.
Regarding everyone’s questions, I’ve thought of a practical scenario: for example, when calculating the utilization rate of interlock systems, what if one of the instruments in a 3-out-of-2 configuration fails and cannot be repaired immediately, and it is necessary to issue an order to disable the interlock system? How should the utilization rate be calculated in such a case? ? ?