IPC/WHMA-A-620E-S space addendum provides additional requirements to IPC/WHMA-A-620E standard to ensure the reliability of cable and wire harness assemblies that must survive the vibration and thermal excursions encountered getting to and operating in the military and space environments. IPC/WHMA-A-620E-S cannot be used as a standalone document. It must be used with the base standard IPC/WHMA-A-620E.