"Andy Burns" wrote in message
...
Just had a power cut (70 minutes not too bad a fix time for an 11kV fault
I suppose)

OK, I did have to get up to silence the UPS (also shut down a couple of
unnecessary PCs while at it to extend runtime)

But most annoying is the 15 minutes of alarms sounding due to failed
batteries, then sounding again for another 15 minutes when the power comes
back ...

People seem to think this is normal/acceptable ...

Didnt get that alarm result here. We had a deliberate power
cut a week ago to change two power poles that lasted about
3 hours and no alarms went off on the cut or the restore.