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3.5.9
( L* q# x8 R w+ x/ T7 TNORMAL CONDITION/ Y7 @; n8 G, E, D! G/ d* I' ?
condition in which all means for protection against HAZARDS are intact 1 q3 u e; q' u. A
3.5.10
+ w# }! J* A! D$ M; f) Q1 nSINGLE FAULT CONDITION
/ x& V) l2 R! icondition in which one means for protection against HAZARD is defective or one fault is present
]* l4 C9 Y1 @; N$ kwhich could cause a HAZARD- i4 S8 a$ r; ^, i8 L7 d
NOTE If a SINGLE FAULT CONDITION results unavoidably in one or more other fault conditions, all the failures are * q* A7 c6 Q. c9 J, l, z
considered as one SINGLE FAULT CONDITION [IEC Guide 104].0 B, t: A% k Y: Y; ]2 ^( O# d
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