Which of the following is not a standard DC power source voltage?

The selection of 96 VDC as a non-standard DC power source voltage is based on the commonly accepted voltage levels used in various applications. Standard DC voltages typically include 24 VDC, 48 VDC, and 125 VDC, which are widely recognized and utilized in industrial, telecommunications, and renewable energy systems.

24 VDC is frequently used in control systems and low voltage applications, while 48 VDC is commonly found in telecommunications for powering equipment like routers and switches due to its efficiency in transmission and safety. 125 VDC is often used in backup power systems, particularly in applications involving battery systems.

In contrast, 96 VDC is less commonly cited and does not have a broad range of applications or industry standards associated with it. While it could potentially be used in specific cases, it does not represent a widely adopted standard voltage level as the others do. Understanding these voltage levels helps in the proper design and implementation of electrical systems, ensuring compliance with industry norms and enhancing safety and reliability.