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by h3xadecima1 529 days ago
Cable systems are not cheap. The biggest issue with cables is the cores dry out. Hydraulic doesn't have to be slow by any means and they dont just seep down unless you blow a seal on the cylinder. Even then it would take an hour under a full load to move a story. Thats a lot of hydraulic fluid to displace. Hydraulic elevators are also prone to issues with cold temperature as the oil can become quite viscous when not in regular use.
1 comments

I was thinking a hose break not a seal which would fall much faster. Which is why you would design them slow - if a hose breaks they are still a safe fall. (of course if you make them fast then you need more inspection, a trade off)

That said I'm not an elevator expert. The details I've given so far is about all I know. So if/when someone claims to be an expert and contradicts me - well they could be right.