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3.5.9
" V6 P, y! I' q7 E1 o$ ^NORMAL CONDITION- K- ~$ D M4 q( k: t3 @$ ~
condition in which all means for protection against HAZARDS are intact ; Y6 o3 N1 H8 U5 T3 ]
3.5.10 % c' |% `1 ^: a' @9 ^0 \
SINGLE FAULT CONDITION
9 J. R% s6 J8 \$ N! f7 f0 d8 E8 ^condition in which one means for protection against HAZARD is defective or one fault is present 6 t3 C* D8 M! ?* C1 B9 S6 H
which could cause a HAZARD
3 r4 A' C4 l) }: r6 JNOTE If a SINGLE FAULT CONDITION results unavoidably in one or more other fault conditions, all the failures are
( S/ P9 b$ _! o, K& d6 C; |% Vconsidered as one SINGLE FAULT CONDITION [IEC Guide 104].. B7 P; u8 u. Q0 l1 x) M
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