If it became necessary to abort the mission, each Saturn carried a propellant dispersion system (PDS). This euphemism referred to a destruct mechanism to terminate the flight of any stage of the vehicle after the astronaut crew had separated from the rocket. The PDS system complied with regulations established by the officials of the Air Force Eastern Test Range and was under the control of the range safety officer, who could end the flight if the vehicle wandered beyond the prescribed limits of the flight path or otherwise became a safety hazard. A radio frequency unit received, decoded, and controlled the PDS commands, and an ordnance train demolished the stage or stages by rupturing the propellant tanks. The ordnance train included initiator assemblies and flexible linear-shaped charges situated in strategic locations to rip open the tanks after engine cutoff, spilling the propellants in a pattern to minimize their mixing during the process
> http://history.nasa.gov/SP-4206/ch8.htm#237
>If it became necessary to abort the mission, each Saturn carried a propellant dispersion system (PDS). This euphemism referred to a destruct mechanism to terminate the flight of any stage of the vehicle after the astronaut crew had separated from the rocket. The PDS system complied with regulations established by the officials of the Air Force Eastern Test Range and was under the control of the range safety officer, who could end the flight if the vehicle wandered beyond the prescribed limits of the flight path or otherwise became a safety hazard. A radio frequency unit received, decoded, and controlled the PDS commands, and an ordnance train demolished the stage or stages by rupturing the propellant tanks. The ordnance train included initiator assemblies and flexible linear-shaped charges situated in strategic locations to rip open the tanks after engine cutoff, spilling the propellants in a pattern to minimize their mixing during the process
Так это система разрушения ступени после отстрела САС. Вы ж говорили: "Однако учитывая что на Сатурнах устанавливается также система безопасного самоуничтожения ступени при разделении вернее предположить работу именно этой системы, а не РДТТ". При использовании системы разрушения ступени она разрушается. На кадрах ступени остаются совершенно целыми. И САС не срабатывает.