162: High Transient Workload
Definition/Typical Issues
Were personnel fatigued (i.e., worn out) by a short-term high level of physical work?
Examples
Example 1
- A 20" feed line in a tank farm had to be manually isolated. This involved closing two remotely controlled valves and one manual isolation valve. While closing the manual isolation valve, the mechanic had to stand on the line itself. He closed the valve as quickly as he could so he could get to lunch on time. During the last couple of turns to close the valve, he became fatigued, lost his balance, and fell to the ground.
Example 2
- During a startup an operator had to climb several ladders in quick succession to take readings and check valve alignments. While descending one of the personnel access ladders, he became fatigued. His foot slipped off one of the ladder rungs and he fell a few feet to the grating below.
Typical Recommendations
- Implement methods to provide equipment to assist workers in performing the task.
- Implement methods to allow equipment to perform the task instead of a human.
- Modify the system to eliminate the need to perform the task.
Cross-References
| Maritime Element(s) | |
|---|---|
| Node ID | Node Name |
| 149 | High Transient Workload |