In a compound system, the secondary system should have a force that is what in relation to the primary system?

In a compound system, the secondary system is required to have a force that is the same or greater than that of the primary system to ensure adequate safety and reliability during a rescue operation. The primary system is designed to handle the majority of the load, but in a compound setup, the secondary system serves as a backup. If the primary system were to fail or become compromised, the secondary system must be capable of managing the load independently.

This redundancy is critical in rescue scenarios where safety is paramount, as it provides an additional layer of security for both the rescuer and the subject being rescued. By having the secondary system capable of supporting the load, it mitigates the risk of total system failure, ensuring that the operation can continue safely even in the event of unexpected circumstances. The requirement of equal to or greater force effectively means that the secondary system can absorb the demands placed upon it without overloading.