From: tappert@ieee.org   
      
   Bob,   
      
   I don't know what the current standard is, but the "old Bell System"   
   guidance for central offices was 8 hours of battery, standby generator   
   with 24 hours of fuel in the day tank and a week's worth of fuel   
   on-site.  A few years ago the FCC issued a ruling that required COs to   
   have 24 hours of backup power and cell sites 8 hours.  That was the   
   first federal guidance on the issue and was issued in response to   
   hurricane Katrina and the fact that first responders were using cell   
   phones for communication.  With the vastly expanded number of cell   
   sites required for 5G, I don't know if the rule still is in force.   
      
   Hope this helps.   
      
   Eric Tappert   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)