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Originally Posted by Tree Machine  This is how we create a device that doesn't have to be factory installed. Permanently installed' really means 'not easily removed'. |
Another definition of "permanently installed" (or "permanently attached") that is conceptually different is "not normally removed." You might attach it to your gear at the start of a day (or a job) and remove it at the end, but not during.
A frog caver does not normally remove her/his chest ascender from the seat maillon between drops, but when (s)he takes the whole system off, it comes apart. During the pit series, it is "permanently attached."
Climbers do not normally untie the rope from their harness between pitches, but do so at the end of the climb. During the climb, it is "permanently attached."
There is probaly an arborist example, but knowing nothing, I won't try to give one.
----> Gary