What is the minimum pressure where double barrier detection is required?

The correct choice indicates that double barrier detection is required at a minimum pressure of 1000 psi. This requirement is grounded in safety regulations and industry standards aimed at preventing leaks and ensuring the integrity of high-pressure systems.

Double barrier detection is used in various systems to provide an extra layer of safety by allowing for early detection of any leaks that may occur. At pressures below 1000 psi, the risks may be deemed manageable with single barriers, thus not necessitating the additional complexity and cost associated with double barrier systems. However, at or above this level, the potential consequences of leaks can be far more significant, thus increasing the need for more stringent safety measures.

Understanding the implications of operating in high-pressure environments is crucial, especially in gas turbine systems, where integrity and reliability are paramount to safe operation. This ensures that critical processes can continue without the risk of hazardous incidents resulting from pressure-related failures.