On Apr 8, 10:54*am, dpb wrote:
wrote:

...

hey when there trying to sell you something NEW they dont mention
againg might hurt sales.......

Like somebody isn't going to buy a breaker because there's a data sheet
that shows it's 20-yr future sensitivity--right. *

dont have a link of one even exists, but its true of all
breakers.........

...

If it were a serious issue (which theoretically it would be if
sensitivity were to go the other way) in the spec's I'm quite sure it
would be addressed in the design phase. *(And, I'm _QUITE_ sure the
major manufacturers do significant aging studies.)

--

This doesn't apply to residential, but the large industrial building
where I work is having the main breakers replaced in the near future.
The only reason I know about this is that obviously the power will be
out for the duration of the replacement, and they have warned all of
the building tenants. Apparently there is some rule about replacing
main breakers in industrial and/or commercial buildings at 5 year
intervals.

Ken