> 2-9's is closer to what civilians in the US are used. ??? Like 4 days of downtime per year? I've had about 1.5 hours of outage this year, which was an outl

> 2-9's is closer to what civilians in the US are used. ??? Like 4 days of downtime per year? I've had about 1.5 hours of outage this year, which was an outlier (much more outage than normal). 3 9's is typical if you have above-ground utilities. If you have underground utilities, you may be doing far better than this...