Which type of fall protection system requires a maximum arresting force of 1,800 pounds when used with a body harness?
Correct Answer
B) Personal fall arrest system
Personal fall arrest systems must limit maximum arresting force to 1,800 pounds when used with a body harness. This limit prevents serious injury from excessive deceleration forces during a fall.
Why This Is the Correct Answer
Personal fall arrest systems are specifically designed to stop a falling worker and must limit the maximum arresting force to 1,800 pounds when used with a body harness according to OSHA standards. This force limitation is critical because it represents the maximum deceleration force the human body can withstand without serious injury. The 1,800-pound limit is a key safety specification that distinguishes personal fall arrest systems from other fall protection methods. This requirement ensures that when the system activates to arrest a fall, it does so in a controlled manner that protects the worker from excessive impact forces.
Why the Other Options Are Wrong
Option A: Positioning device system
Positioning device systems are designed to support workers in position while they work, not to arrest free falls. They have different force requirements and are not intended as primary fall arrest protection.
Option D: Safety net system
Safety net systems catch falling workers but do not have the same specific 1,800-pound arresting force requirement. They are designed to catch and cushion falls rather than arrest them with the precise force limitations required for harness systems.
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