2 Safety conditions
44(;(&<6
4648
1
! 88(;(&<4)
884!
(! =
!
'! 986
4!
&! 4!
! =8
448!
! 844
>!
.! =686!
0! 4?@
!
-! 483
-*A!
*! 44/(B
/&*B!
! 48!
&