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3.5.9
4 ]6 f% E$ P" KNORMAL CONDITION8 S6 M5 T0 n5 E) t. n
condition in which all means for protection against HAZARDS are intact 7 g2 u/ @" l* m3 T+ L6 g! X
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SINGLE FAULT CONDITION
6 c. R2 t$ p# T- N; E7 b/ `! pcondition in which one means for protection against HAZARD is defective or one fault is present
" s' c2 o- m+ J) lwhich could cause a HAZARD% Z6 s% |3 g; D% r- X2 E' N; f
NOTE If a SINGLE FAULT CONDITION results unavoidably in one or more other fault conditions, all the failures are
: j1 ?* T" [, U! P: J0 _% U) V9 ]considered as one SINGLE FAULT CONDITION [IEC Guide 104].
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