出典:Wikipedia
出典:『Wikipedia』 (2011/05/13 02:25 UTC 版)
Spurious Trip Level (STL) is defined as a discrete level for specifying the spurious trip requirements of safety functions to be allocated to safety systems. An STL of 1 means that this safety function has the highest level of spurious trips. The higher the STL level the lower the number of spurious trips caused by the safety system. There is no limit the number of spurious trip levels..