What is the minimum bursting strength for flexible connections used on the hydraulic drive of a personnel hoist?

The minimum bursting strength for flexible connections used on the hydraulic drive of a personnel hoist is determined by safety standards that aim to ensure the reliability and integrity of the system under various operating conditions. Selecting a bursting strength that is four times the working pressure of the hydraulic system provides a significant safety margin. This means that the flexible connections can withstand four times the normal operating pressure without failing, thus minimizing the risk of catastrophic failure during operation.

In hydraulic systems, fluctuations in pressure can occur due to changes in load, temperature, or system dynamics. By requiring a bursting strength of four times the working pressure, the design accounts for unexpected spikes and ensures durability over time, which is crucial for the safety of personnel using the hoist.

Other options suggest lower multiples of the working pressure. While they might offer some level of safety, they do not provide the same level of assurance against potential failure due to pressure variability and the dynamic nature of hydraulic operations. Therefore, the choice of four times the working pressure ensures compliance with the highest safety standards in the industry for personnel hoists.