Pretty much
Funny power thing. When I was working the Space Shuttle complex at S. VAFB I was running a portable concrete plant. VAFB had their OWN power plants, numerous generating plants scattered around the base. If I saw little sparks around the insulators on the power lines on the way to work I knew it was going to be one of those bad electricity days. Tell my oiler "Go warm up the genset." which usually got me a kinda look. About 8:30 or so, boom boom out go the lights My oiler would just look at me and shake his head and go fire up the genset
The thermodynamics professor at my college told his class why the space shuttle Challenger blew up a half hour after it happened and he was correct... He was great at thermodynamics and had many papers submitted to the government on heat transfer and thermodynamics (he also designed the air-to-air inter cooler on Chrysler's turbo II engines).... He was familiar with the design of the o-ring for the booster that let go and knew it was unstable below 40° F....