Tom I used to work for a telecom UPS company and we used data on lighting that I think was compilied from the National Weather Service. We used this data because there was such a strong correlation between lightning activity and incidence of power outages. Florida was definitely the highest in the US. As far as length of outages this seemed to vary greatly and you could probably get information from utility companies. I remember one customer we had in the Philipines shut the grid down for 6 hours every day!
Intimately related to backup time is recharge time. If you have lots of storm activity over several days you will not achieve your backup time with less than fully charged batteries. Darrell Locke Advanced Input Devices ---------- From: Tom Brose To: 'EMC-PSTC Email Forum' Subject: Power Outages List-Post: emc-pstc@listserv.ieee.org Date: Tuesday, August 12, 1997 6:41AM I am trying to decide how much backup battery capacity I should have in a particular product for the home environment. The only purpose of the battery is to allow product operation during the more common (hopefully short) power outages. Could anyone point me in the direction of data about the frequency and duration of utility power outages? The areas I am most interested in are North and South America and Europe. Thanks. Tom Brose tbr...@aksys.com
