Re: Lightning protection

Glass helps, honest it does.  Get all the fiber optics you can, and use 
lightning as just one more reason to leave copper.  Glass is expensive but 
not if you have lightning very often.

_______________________
Booth Martin
Booth@MartinVT.com
http://www.MartinVT.com
_______________________




Chuck Lewis <clewis@iquest.net>
Sent by: owner-midrange-l@midrange.com
07/17/2000 07:55 AM
Please respond to MIDRANGE-L

 
        To:     MIDRANGE-L@midrange.com
        cc: 
        Subject:        Re: Lightning protection
Just an aside to all of this... 
and yes, we have had this problem this year too at remote sites. 
EVERYTHING would be fine except for the Adtran DSU/CSU... We got line 
conditioners for the data circuits... 
you need to do ALL you can but there is NO fool proof way that I've ever 
heard of to GUARANTEE protection from a lightening strike other than 
unplugging stuff (or conditioning the power through a LARGE UPS so nothing 
runs off of external power. Still have a problem with the data circuits). 
When we were researching UPS's many years ago, we came across technical 
data from the power folks that a SINGLE bolt of lightening can generate 
ONE MILLION VOLTS of electricity in SECONDS !! 
Mother Nature - ALWAYS impressive :-) 
Chuck 
Jim Franz wrote: 
After a severe lightning storm Thu nite, a customer's shop is still down. 
The AS/400 runs fine. The 400 & most network equip on large UPS all 
survived. (Their network tech put some RAS servers outside computer room & 
they died-idiot). All the hubs in office damaged.  My question is the 
CISCO router. Was on UPS & powers up ok, but the tech described the 
CSU/DSU port as "fried". Is there such a thing as T1 cable surge 
suppression? I asked router tech & he has no clue. I asked telco tech & he 
had no clue.Jim Franz


+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---