Environmental Engineering Reference
In-Depth Information
2.1 Regular
man sick
4.1 Safety
requirement
6.1 Wanted to
check it out
1.0 John Jones
came to work
2.0 John assigned
to change fuse
3.0 Obtained
fuse from
store room
4.0 Tagged
out fuse box
5.0 Replaced
fuse
6.0 Energized
system
2.2 Fuse blown
2.3 System blows
fused when
starting
2.5 Defect
not corrected
2.4 System
designed to run
continually
FIgure 9.3
Events.and.causal.factors.chart..(
Source:
.Courtesy.of.the.United.States.Department.of.Energy.)
