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3.5.9
/ B8 m" a: G1 ]( G$ h$ \NORMAL CONDITION
* g) S" T9 |/ ~- a5 f- z/ \condition in which all means for protection against HAZARDS are intact ) Y7 P% ^7 m) j* \" U' x
3.5.10
- k8 Q! L: d& @1 ]+ [2 R$ B& B. `SINGLE FAULT CONDITION8 E# x: }2 ?) N O
condition in which one means for protection against HAZARD is defective or one fault is present 5 Z5 l. r, K: F! e* c0 L# @ @
which could cause a HAZARD+ I! ~" j% `8 i, A9 {' f
NOTE If a SINGLE FAULT CONDITION results unavoidably in one or more other fault conditions, all the failures are
% l0 \$ w W; X0 z$ m# K1 f9 k% gconsidered as one SINGLE FAULT CONDITION [IEC Guide 104].
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